James D. M. Speed

About

Professor James D. M. Speed

My research involves a range of taxa from vascular plants and bryophytes to invertebrates, birds and mammalian herbivores. I work at a range of scales, from the individual to the biome, with short term experiments to palaeoecology, and from local scale patterns to regional and biome scale processes. Developing interests are biogeography and ecoinformatics. I have worked in environments from the high-arctic and temperate-alpine regions to boreal forests and African savannahs. I am interested in understanding diversity patterns in terms of species interactions with their environments and evolutionary relationships. A further core interest involves disentangling the interactive impacts of vertebrate herbivory and climate on plant populations and communities and ecosystem ecology.

I am a member of the editorial board for the journals Ecology and previously of Ecological Monographs

I have been a fellow on the NTNU Outstanding Academic Fellows programme and a holder of a Research Council of Norway Young Research Talents project.

Postdocs

David R. Williamson (Postdoc 2024-2027) Applying computer vision and machine learning to natural history collections

Jolanta Rieksta (Villum International Postdoc, 2023-2026, Sources of within-species variation determining biogenic volatile organic compound (BVOC) emissions from mountain birch forests)

Former Postdocs and Researchers

Stefaniya Kamenova (Postdoc 2021-2022) Metabarcoding of reindeer diet in relation to changes in Arctic terrestrial biodiversity

Tanja K. Petersen (Researcher 2021-2022) Alpine ecology, functional biogeography, natural history collections

Stuart W. Smith (Postdoc 2015-2019) Investigating how wildlife and livestock affect vegetation and ecosystem processes in the Serengeti-Mara region in Tanzania and Kenya

Kenny Helsen (Postdoc 2015-2017) Assessing the impact of invasive plant species on ecosystem services and associated ecosystem functions using a functional effect trait framework.

PhD Students

Beatrice Trascau (PhD student 2022-2025, NTNU Department of Natural History) Using natural history collections and species occurrence data to untangle biodiversity responses to land-use and climate changes across Norway

Wendy Khumalo (PhD student 2022-2024, NTNU University Museum) Dendroclimatological reconstruction of climate during the Little Ice Age in Norway

Mathilde Defourneaux (PhD student 2021-2024, Agricultural University of Iceland, main supervisor Isabel Barrio). Herbivores in the tundra: Linking diversity and function.

Ann Evankow (PhD student 2020-2024 University of Oslo) Integrative taxonomy and spatial phylogenetics of the Psoraceae

Damaris M. Matten (PhD student 2019-2024). Ecology and phylogenetics

Marte Fandrem (PhD student 2018-2024) Peat mosses and ecosystem services

Former PhDs

Katy Ivison (PhD student 2019-2022, Durham University, main supervisor is Wayne Dawson) Enemies of the invaders: How will natural enemies affect the risk of non-native plant invasions in a warmer Arctic?

Malene Ø. Nygård (PhD student 2017-2021, main supervisor was Mika Bendiksby) Plant conservation genomics

Katariina Vuorinen (PhD student 2017-2021) When do ungulates override the climate? Defining the interplay of two key drivers of northern vegetation dynamics.

Tanja K. Petersen (PhD student 2017-2021, main supervisor was Gunnar Austrheim) Biodiversity dynamics in urban areas under changing land-uses

Anders L. Kolstad (PhD student 2015-2019) Ungulate-mediated effects on ecosystem functions and services in boreal production forests

Master Students

Federico Garcia Castro (Master student 2022-2024) Relating moth functional traits measured in natural history collections to climate in space and time.

Frida Slettan (Master student 2022-2024) Land-use as a determinant of plant-pollinator networks in a subalpine landscape

Tor-Henrik Ulsted (Master student 2022-2024) Horizon scanning for potential non-native plant establishment in Arctic Svalbard

Kirsten Engeseth (Master student 2021-2024) Diet overlap between wild reindeer, domestic sheep and introduced muskoxen in Dovrefjell

Former master students

Anna Sobocinksi (Master student (2020-2022) Mapping carnivore community structure in Norway across 100 years

Emma Petterson (Master student 2020-2021) Functional diversitsy of Arctic carnviores

Sonia Pujara (Master student 2020-2022) How do warming and herbivory affect the phenology of non-native plant species?

Rachel Guindon (Master student Université Laval, Québec, 2018-2020, main supervisor is Jean-Pierre Tremblay) Assessment of the resources used by muskoxen (Ovibos moschatus) in Nunavik and development of a community monitoring protocol.

John Maxwell Salisbury (Master student 2019-2021) How do moose influence climate? The effect of moose browsing on surface albedo in Norwegian successional boreal forest.

Peter Frank (Master student 2018-2020) Climate and herbivory as drivers of woody plant growth in Alaksa

Maria Alejandra Aguilar Tomasini (Master student 2018-2020) The phylogenetic diversity of Mexican mammals

Hans Ivar Hortman (Master Student 2018-2020) Climate and reindeer herbivory as drivers of woody plant growth in Finnmark.

Kjersti Rønhovde Styve (Master student 2019-2020) Phylogenetic Diversity Patterns across Trophic Levels in Norway.

Ingrid Bekken Snøan (Master student 2018-2019) Use of Lidar data in assessing effect of moose browsing on boreal forests

Jesus Adrian Chimal Ballesteros (Master student 2017-2019) Mapping the functional and phylogenetic diversity of boreal and arctic herbivores

Vilde Lytskjold Haukenes (Master student 2017-2019) Impacts of climate and land-use change on carbon storage in the Serengeti-Mara ecosystem

Sarah Adom Yawsom (Master student 2017-2019) Integrating ecological informatics and ethnobotany to map ecosystem services in Ghana

Ida Marielle Mienna (Master student 2016-2018) Spatial phylogenetics of the Norwegian flora.

Victoria Berger (Master student 2016-2018) Successional dynamics in boreal forests: what is the impact of moose browsing, and which pathways are preferred by landowners?

Winta Gebreyohanis (Master student 2015-2017) The effects of browsing and climate on above- ground carbon stocks in boreal forests.

Joana Awuah Adofo (Master student 2015-2017) The impact of bushfire on plant functional groups and carbon storage in the savanna of northern Ghana.

Philbert M. Ngoti (Master student 2015-2017) Feeding ecology Of Eastern Black Rhinoceros (Diceros Bicornis Michaeli) in southern Serengeti National Park, Tanzania.

Ina Åsnes Skjellbred (Master student 2016-2017) Spatial patterns in the phylogenetic diversity of Arctic herbivores.

Toril Nes (Master student 2013 – 2015). The Effects of Moose (Alces alces)Browsing on Boreal Tree Species in Norway and Quebec

Kristin Wangen (Master student 2013 – 2015). Understanding the Ecology of Three Mixed Northern Hepatic Mat Species at Regional Scale through Species Distribution Modelling, and Local Scale through Growth Measurements and Micro-Climatic Assessment.

Marie Maurset (Master student 2013 – 2015). Long-term Effects of Shifts in Grazing Pressure on Alpine Plant Species along an Elevational Gradient.

Else Marte Vold (Master student 2011 – 2013). Management effects on low-herb diversity in outlying grasslands

Suzanne Hansen (Master student 2010 – 2012). Red-listed vascular plants species in sub-alpine and alpine landscapes: How does land-use affect their distribution?

Career and Education

2001 – 2005: BSc (Hons.) Biology, University of York

2006 – 2009: PhD Biological Sciences, University of Aberdeen

2009 - 2016: Postdoctoral Fellow & Reseacher, NTNU University Museum, Norwegian University of Science and Technology

2016 - 2021: Associate Professor & Researcher, NTNU University Museum, Norwegian University of Science and Technology

2021 - present: Professor & Researcher, NTNU University Museum, Norwegian University of Science and Technology

Publications

Google Scholar profile

Research Gate profile

ResearcherID

CRISTIN profile

Research

Current Research

Disentangling the impacts of herbivory and climate on ecological dynamics: The DISENTAGLE project addresses how climate and herbivory together affect ecosystem processes across spatial scales. The project investigates interactions between herbivory and climate in northern ecosystems by examining (1) The growth of woody plants and community composition at the site scale. (2) The ability of herbivores to determine plant species distributions at a regional scale and (3) The functional and phylogenetic ecology of herbivores across the world's arctic and boreal ecosystems.

CHARTER: Drivers and feedbacks of changes in Arctic terrestrial biodiversity.

ForestPotential Changing Forest Area and Forest Productivity – Climatic and Human Causes, Effects, Monitoring Options, and Climate Mitigation Potential

SustHerb Project The SustHerb project is working towards sustainable management of moose, red deer and their food resources. I am involved in analysing vegetation and tree response to browsing herbivores.

Previous projects

AfricanBioServices: Investigating how productivity, nutrient cycling and carbon storage vary with livestock and wild herbivore grazing along a climatic gradient in the Serengeti-Mara ecosystem

MIRACLE project: Mires and climate: towards enhancing functional resilience of fen peatlands

Sheep Grazing Project Quantification of the impact of grazing on the distribution and growth of mountain birch above the forest line.

Managing ecosystem services in low alpine cultural landscapes through livestock grazing Moving on from this project we are investigating how sheep grazing impacts on alpine ecosystem services through impacts on the treeline.

Systematic review of impacts of reindeer grazing. I was part of a team carrying out a systematic review of the impacts of reindeer herbivory on mountain and arctic vegetation

DYLAN Project Homepage I also worked within the DYLAN project where I am synthesising the impact of land use and natural drivers of landscape state across protected areas in Norway and the UK, with a long-term perspective.

Publications

A regionally coherent ecological fingerprint of climate change, evidenced from natural history collections.

Using natural history collections to investigate how climate change impacts across ecological responses, taxa and scales

Airborne laser scanning reveals uniform responses of forest structure to moose (Alces alces) across the boreal forest biome

A network of moose exclosures across the boreal forest biome shows that moose have consistent effects on forest structure and carbon storage.

My research falls into three thematic areas, ordered in terms of depth (1) The impact of vertebrate herbivores on ecological and ecosystem dynamics, (2) the functional and phylogenetic biogeography of trophic guilds, and (3) biodiversity analytics with a focus on using natural history collections to address ecological questions in space and time.

2025

Speed, James David Mervyn; Sobocinski, Anna; Kolstad, Anders Lorentzen; Linnell, John Durrus; Solberg, Erling Johan; Mattisson, Jenny. (2025) The trophic distribution of biomass in ecosystems with co-occurring wildlife and livestock. Scientific Reports
Academic article
Williamson, David Roddan; Prestø, Tommy; Westergaard, Kristine Bakke; Trascau, Beatrice Maria; Vange, Vibekke; Hassel, Kristian. (2025) Long‐term trends in global flowering phenology. New Phytologist
Academic article

2024

Trascau, Beatrice Maria; Herfindal, Ivar; Austrheim, Gunnar; Speed, James David Mervyn. (2024) "A Landscape of Change: How 20 years of land cover changes have shaped Norway's biodiversity". NTNU Kveld
Other presentation
Brandslet, Steinar; Westergaard, Kristine Bakke; Speed, James David Mervyn. (2024) Fremmede arter truer plantelivet på Svalbard. https://forskning.no/
Popular scientific article
Brandslet, Steinar; Westergaard, Kristine Bakke; Speed, James David Mervyn. (2024) Svalbard: Fremmede arter truer sårbart planteliv. Gemini.no
Popular scientific article
Ravolainen, Virve; Paulsen, Ingrid Marie Garfelt; Eischeid, Isabell; Forbey, Jennifer Sorensen; Fuglei, Eva; Hájek, Tomás. (2024) Low spatial habitat overlap of herbivores in the High Arctic tundra. Global Ecology and Conservation
Academic article
Barbero-Palacios, Laura; Barrio, Isabel C.; García Criado, Mariana; Kater, Ilona; Petit Bon, Matteo; Kolari, Tiina H. M.. (2024) Herbivore diversity effects on Arctic tundra ecosystems: a systematic review. Environmental Evidence
Academic literature review
Defourneaux, Mathilde; Barrio, Isabel C.; Boulanger-Lapointe, Noémie; Speed, James David Mervyn. (2024) Long-term changes in herbivore community and vegetation impact of wild and domestic herbivores across Iceland. Ambio
Academic article
Speed, James David Mervyn; Pertierra, Luis R.; Westergaard, Kristine Bakke. (2024) The potential area of occupancy of non-native plants across a warming high-Arctic archipelago: Implications for strategic biosecurity management. NeoBiota
Academic article
Ivison, Katy; van Kleunen, Mark; Speed, James David Mervyn; Vange, Vibekke; Pujara, Sonia; Boch, Steffen. (2024) Non-Native, Non-Naturalised Plants Suffer Less Herbivory Than Native Plants Across European Botanical Gardens. Diversity and Distributions: A Journal of Conservation Biogeography
Academic article
Zhang, Lan; Hu, Xiangping; Austrheim, Gunnar; Speed, James David Mervyn; Zhao, Wenwu; Cherubini, Francesco. (2024) Disentangling the effects of climate variability and herbivory on spatial and temporal changes in northern vegetation greening. Ecological Indicators
Academic article
Furness, Euan N.; Speed, James David Mervyn; Garwood, Russell J.; Sutton, Mark D.. (2024) The role of evolutionary processes in determining trophic structure. Oikos
Academic article
Ivison, Katy; Vange, Vibekke; Speed, James David Mervyn; Dawson, Wayne. (2024) Invasive plants grow taller under experimental warming, but mediated effects of biotic interactions are species-specific. Oikos
Academic article

2023

Guidetti, Roberto; Jönsson, K. Ingemar; Kaczmarek, Łukasz; Meier, Terje; Speed, James David Mervyn; Prestø, Tommy. (2023) Tardigrade diversity and community composition across Norwegian boreal forests. Zoological Journal of the Linnean Society
Academic article
Trascau, Beatrice Maria; Matten, Damaris M.; Krogstie, Hanne Bjørnås; Rieksta, Jolanta; Speed, James David Mervyn; Vange, Vibekke. (2023) Duftetur (Scented Tour). Ringve 50th Anniversary
Museum exhibition
Nybø, Signe; Kolstad, Anders Lorentzen; Sandvik, Hanno; Bakkestuen, Vegar; Evju, Marianne; Framstad, Erik. (2023) Indikatorer for økologisk tilstand i våtmark, semi-naturlig mark og naturlig åpne områder under skoggrensa . NINA rapport (2336)
Report
Nygaard, Malene; Kopatz, Alexander; Speed, James David Mervyn; Martin, Michael David; Prestø, Tommy; Kleven, Oddmund. (2023) SNP genotyping and environmental niche modelling using herbarium specimens of the northern dragonhead, Dracocephalum ruyschiana (Lamiaceae). Bauhinia
Abstract
Petersen, Tanja Kofod; Kolstad, Anders Lorentzen; Kouki, Jari; Leroux, Shawn J.; Potvin, Lynette R.; Tremblay, Jean-Pierre. (2023) Airborne laser scanning reveals uniform responses of forest structure to moose (Alces alces) across the boreal forest biome. Journal of Ecology
Academic article
Matten, Damaris Marina; Mienna, Ida Marielle; Bieker, Vanessa Carina; Mishler, Brent D.; Moen, Victoria Stornes; Nygård, Malene Østreng. (2023) Spatial patterns of phylogenetic and species diversity of fennoscandian vascular plants in protected areas. Biodiversity and Conservation
Academic article
Salisbury, John Maxwell; Hu, Xiangping; Speed, James David Mervyn; Iordan, Cristina Maria; Austrheim, Gunnar; Cherubini, Francesco. (2023) Net Climate Effects of Moose Browsing in Early Successional Boreal Forests by Integrating Carbon and Albedo Dynamics. Journal of Geophysical Research (JGR): Biogeosciences
Academic article
De Vriendt, Laurent; Barrette, Martin; Kolstad, Anders Lorentzen; Vuorinen, Katariina Elsa M; Speed, James David Mervyn; Lavoie, Sébastien. (2023) Heavy browsing pressure by moose (Alces alces) can interfere with the objectives of ecosystem-based forest management. Forest Ecology and Management
Academic article
Nygård, Malene Østreng; Kopatz, Alexander; Speed, James David Mervyn; Martin, Michael David; Prestø, Tommy; Kleven, Oddmund. (2023) SNP genotyping and environmental niche modelling using herbarium specimens of the northern dragonhead, Dracocephalum ruyschiana (Lamiaceae). Bauhinia
Academic article

2022

Martin, Andrew C.; Assmann, Jakob J.; Bradshaw, Richard H. W.; Kuoppamaa, Mari; Kuosmanen, Niina I; Normand, Signe. (2022) What evidence exists for temporal variability in Arctic terrestrial and freshwater biodiversity throughout the Holocene? A systematic map protocol. Environmental Evidence
Academic article
Speed, James David Mervyn; Evankow, Ann; Petersen, Tanja Kofod; Ranke, Peter Sjolte; Nilsen, Nellie Henriette; Turner, Grace Winifred. (2022) A regionally coherent ecological fingerprint of climate change, evidenced from natural history collections. Ecology and Evolution
Academic article
Soininen, Eeva M; Barrio, Isabel C.; Bjørkås, Ragnhild; Björnsdóttir, Katrín; Ehrich, Dorothee; Hopping, Kelly. (2022) Correction to: Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map (Environmental Evidence, (2021), 10, 1, (25), 10.1186/s13750-021-00240-0). Environmental Evidence
Errata
Nygaard, Malene; Kopatz, Alexander; Speed, James David Mervyn; Martin, Michael David; Prestø, Tommy; Kleven, Oddmund. (2022) Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens. Ecology and Evolution
Academic article
Vuorinen, Katariina Elsa Maria; Austrheim, Gunnar; Tremblay, Jean-Pierre; Myers-Smith, Isla H.; Hortman, Hans Ivar; Frank, Peter Anthony. (2022) Growth rings show limited evidence for ungulates’ potential to suppress shrubs across the Arctic. Environmental Research Letters
Academic article
Ivison, Katy; Speed, James David Mervyn; Prestø, Tommy; Dawson, Wayne. (2022) Testing enemy release of non-native plants across time and space using herbarium specimens in Norway. Journal of Ecology
Academic article
Awuah, Joana; Smith, Stuart; Speed, James David Mervyn; Graae, Bente Jessen. (2022) Can seasonal fire management reduce the risk of carbon loss from wildfires in a protected Guinea savanna?. Ecosphere
Academic article
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Frøyen, Yngve Karl; Austrheim, Gunnar. (2022) Urbanisation and land-cover change affect functional, but not compositional turnover of bird communities. Urban Ecosystems
Academic article
Petersen, Tanja Kofod; Vuorinen, Katariina Elsa M; Bendiksby, Mika; Speed, James David Mervyn. (2022) Climate and land-use drive the functional composition of vascular plant assemblages across Norway. Nordic Journal of Botany (NJB)
Academic article
Nygaard, Malene; Bendiksby, Mika; Speed, James David Mervyn; Martin, Mike. (2022) Integrative biosystematics and conservation genomics – holistic studies of two red-listed plants in Norway. Doctoral theses at NTNU (68)
Doctoral dissertation
Lindén, Elin; te Beest, Mariska; Aubreu, Ilka; Moritz, Thomas; Sundqvist, Maja K.; Barrio, Isabel C.. (2022) Circum-Arctic distribution of chemical anti-herbivore compounds suggests biome-wide trade-off in defence strategies in Arctic shrubs. Ecography
Academic article
Barrio, Isabel C.; Barbero-Palacios, Laura; Kaarlejärvi, Elina; Speed, James David Mervyn; Heiðmarsson, Starri; Hik, David S.. (2022) What are the effects of herbivore diversity on tundra ecosystems? A systematic review protocol. Environmental Evidence
Academic literature review
Mienna, Ida Marielle; Austrheim, Gunnar; Klanderud, Kari; Bollandsås, Ole Martin; Speed, James David Mervyn. (2022) Legacy effects of herbivory on treeline dynamics along an elevational gradient. Oecologia
Academic article
Jepsen, Jane Uhd; Speed, James David Mervyn; Austrheim, Gunnar; Rusch, Graciela; Petersen, Tanja Kofod; Asplund, Johan. (2022) Panel-based Assessment of Ecosystem Condition – a methodological pilot for four terrestrial ecosystems in Trøndelag. NINA rapport (2094)
Report

2021

Kolstad, Anders Lorentzen; Snøan, Ingrid Bekken; Austrheim, Gunnar; Bollandsås, Ole Martin; Solberg, Erling Johan; Speed, James David Mervyn. (2021) Airborne laser scanning reveals increased growth and complexity of boreal forest canopies across a network of ungulate exclosures in Norway. Remote Sensing in Ecology and Conservation
Academic article
Aguilar Tomasini, Maria Alejandra; Martin, Michael David; Speed, James David Mervyn. (2021) Assessing spatial patterns of phylogenetic diversity of Mexican mammals for biodiversity conservation. Global Ecology and Conservation
Academic article
Speed, James David Mervyn; Chimal Ballesteros, Jesus Adrian; Martin, Michael David; Barrio, Isabel C.; Vuorinen, Katariina Elsa Maria; Soininen, Eeva Marjatta. (2021) Will borealization of Arctic tundra herbivore communities be driven by climate warming or vegetation change?. Global Change Biology
Academic article
Wana, Desalegn; Smith, Stuart; Coleman, Kjirsten Elizabeth Robyne; Speed, James David Mervyn. (2021) Proximity to high densities of pastoral settlements reduces grassland regrowth in a protected tropical savanna. Biotropica
Academic article
Petersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2021) Biodiversity dynamics in urban areas under changing land-uses. Norwegian University of Science and Technology
Doctoral dissertation
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Austrheim, Gunnar. (2021) Competitors and ruderals go to town: plant community composition and function along an urbanisation gradient. Nordic Journal of Botany (NJB)
Academic article
Nygård, Malene Østreng; Kemppainen, Petri; Speed, James D. M.; Elven, Reidar; Flatberg, Kjell Ivar; Galten, Leif Persen. (2021) Combining population genomics and ecological niche modeling to assess taxon limits between Carex jemtlandica and C. lepidocarpa. Journal of Systematics and Evolution
Academic article
Petersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar; Frøyen, Yngve Karl. (2021) Hvilke arter skal vi bo sammen med i byen?. Forskersonen.no
Feature article
Vuorinen, Katariina Elsa Maria; Oksanen, Tarja Maarit; Oksanen, Lauri; Speed, James David Mervyn; Vuorisalo, Timo. (2021) Erratum to: Why don't all species overexploit (Oikos, (2021), 130, 11, (1835-1848), 10.1111/oik.08358). Oikos
Errata
Lembrechts, Jonas J.; van den Hoogen, Johan; Aalto, Juha; Ashcroft, Michael B.; De Frenne, Pieter; Kemppinen, Julia. (2021) Global maps of soil temperature. Global Change Biology
Academic article
Champagne, Emilie; Raymond, Patricia; Royo, Alejandro; Speed, James David Mervyn; Tremblay, Jean-Pierre; Côte, Steeve D. (2021) A Review of Ungulate Impacts on the Success of Climate-Adapted Forest Management Strategies. Current Forestry Reports
Academic literature review
Vuorinen, Katariina Elsa Maria; Austrheim, Gunnar; Mysterud, Atle; Gya, Ragnhild; Vandvik, Vigdis; Grytnes, John Arvid. (2021) Functional traits of alpine plant communities show long-term resistance to changing herbivore densities. Ecosphere
Academic article
Kroeger, Svenja; Hanslin, Hans Martin; Lennartsson, Tommy; D'Amico, Marcello; Kollmann, Johannes; Fischer, Christina. (2021) Impacts of roads on bird species richness: A meta-analysis considering road types, habitats and feeding guilds. Science of the Total Environment
Academic article
Barrio, Isabel C.; Ehrich, Dorothee; Soininen, Eeva M; Ravolainen, Virve; Bueno, C. G.; Gilg, Olivier. (2021) Developing common protocols to measure tundra herbivory across spatial scales. Arctic Science
Academic article
Soininen, Eeva M; Barrio, Isabel C.; Bjørkås, Ragnhild; Björnsdóttir, Katrin; Ehrich, Dorothee; Hopping, Kelly A.. (2021) Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map. Environmental Evidence
Academic literature review
Vuorinen, Katariina Elsa Maria; Oksanen, Tarja Maarit; Oksanen, Lauri; Vuorisalo, Timo; Speed, James David Mervyn. (2021) Why don't all species overexploit?. Oikos
Academic literature review
Vuorinen, Katariina Elsa Maria; Speed, James David Mervyn; Austrheim, Gunnar; Tremblay, Jean-Pierre; Hester, Alison J.. (2021) When do ungulates override the climate? Defining the interplay of two key drivers of northern vegetation dynamics . NTNU Open
Doctoral dissertation
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Austrheim, Gunnar. (2021) Species data for understanding biodiversity dynamics: The what, where and when of species occurrence data collection. Ecological Solutions and Evidence
Academic article

2020

Vuorinen, Katariina; Rao, Shaila; Hester, Alison J.; Speed, James David Mervyn. (2020) Herbivory and climate as drivers of woody plant growth: Do deer decrease the impacts of warming?. Ecological Applications
Academic article
van der Wal, René; Anderson, Helen B.; Stien, Audun; Loe, Leif Egil; Speed, James David Mervyn. (2020) Disturbance, recovery and tundra vegetation change. Report to Svalbard Environmental Protection Fund
Report
Mienna, Ida Marielle; Speed, James David Mervyn; Klanderud, Kari; Austrheim, Gunnar; Næsset, Erik; Bollandsås, Ole Martin. (2020) The relative role of climate and herbivory in driving treeline dynamics along a latitudinal gradient. Journal of Vegetation Science (JVS)
Academic article
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Austrheim, Gunnar. (2020) Urban aliens and threatened near-naturals: Land-cover affects the species richness of alien- and threatened species in an urban-rural setting. Scientific Reports
Academic article
Timdal, Einar; Westberg, Martin; Haugan, Reidar; Hofton, Tom Hellik; Holien, Håkon; Speed, James David Mervyn. (2020) Integrative taxonomy reveals a new species, Nephroma orvoi, in the N. parile species complex (lichenized Ascomycota). Graphis Scripta
Academic article
Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2020) planteR. https://shiny.vm.ntnu.no/users/speed/planteR/
Internet exhibition
Speed, James David Mervyn; Austrheim, Gunnar; Bendiksby, Mika; Kolstad, Anders Lorentzen; Vuorinen, Katariina. (2020) Increasing Cervidae populations have variable impacts on habitat suitability for threatened forest plant and lichen species. Forest Ecology and Management
Academic article
Frank, Peter; Speed, James David Mervyn; Vuorinen, Katariina. (2020) Herbivory Moderates the Positive Effect of Climate Warming on Shrub Growth in Northern Interior Alaska. NTNU
Masters thesis
Vuorinen, Katariina; Kolstad, Anders Lorentzen; De Vriendt, Laurent; Austrheim, Gunnar; Jean-Pierre, Tremblay; Solberg, Erling Johan. (2020) Cool as a moose: How can browsing counteract climate warming effects across boreal forest ecosystems?. Ecology
Academic article
Hortman, Hans Ivar; Speed, James David Mervyn; Vuorinen, Katariina. (2020) Herbivory and climate as drivers of shrub growth in the tundra of Northern Norway. NTNU
Masters thesis
Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2020) planteR Artsutbredelsesmodellen planteR er en app som simulerer effekten av klimaendringer og beitetrykk på rødlista planter.
Digital learning tools
Austrheim, Gunnar; Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2020) Vi tåler ikke et nytt tiår med neglisjering av naturen. Forskning.no
Feature article
Tuomi, Maria; Väisänen, Maria; Ylänne, H; Brearley, Francis Q.; Barrio, Isabel C.; Bråthen, Kari Anne. (2020) Stomping in silence: Conceptualizing trampling effects on soils in polar tundra. Functional Ecology
Academic literature review
Thomas, Haydn J.D.; Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, S. C.; Kattge, J.; Diaz, S.. (2020) Global plant trait relationships extend to theclimatic extremes of the tundra biome. Nature Communications
Academic article
Lembrechts, Jonas J.; Aalto, Juha; Ashcroft, Michael B.; De Frenne, Pieter; Kopecký, Martin; Lenoir, Jonathan. (2020) SoilTemp: A global database of near-surface temperature. Global Change Biology
Academic article
Sundsdal, Anders; Graae, Bente Jessen; Speed, James David Mervyn; Bukombe, John; Mtweve, Philipo Jacob; Klementsen Arneberg, Marit. (2020) Teatime in the Serengeti: macrodetritivores sustain recalcitrant plant litter decomposition across human-modified tropical savannahs. Plant and Soil
Academic article

2019

Halbritter Rechsteiner, Aud Helen; De Boeck, Hans J.; Eycott, Amy Elizabeth; Reinsch, Sabine; Robinson, David A.; Vicca, Sara. (2019) The handbook for standardized field and laboratory measurements in terrestrial climate change experiments and observational studies (ClimEx). Methods in Ecology and Evolution
Academic article
Ross, Louise C.; Speed, James David Mervyn; Øien, Dag-Inge; Grygoruk, Mateusz; Hassel, Kristian; Lyngstad, Anders. (2019) Can mowing restore boreal rich-fen vegetation in the face of climate change?. PLOS ONE
Academic article
Speed, James David Mervyn; Skjelbred, Ina Åsnes; Barrio, Isabel C.; Martin, Michael David; Berteaux, Dominique; Bueno, C. Guillermo. (2019) Trophic interactions and abiotic factors drive functional and phylogenetic structure of vertebrate herbivore communities across the Arctic tundra biome. Ecography
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Kolstad, Anders Lorentzen; Solberg, Erling Johan. (2019) Long-term changes in northern large-herbivore communities reveal differential rewilding rates in space and time. PLOS ONE
Academic article
Speed, James David Mervyn. (2019) Mapping the puzzle of herbivore diversity across the Arctic: Functions and relationships matter.
Website (informational material)
Helsen, Kenny; Hagenblad, Jenny; Acharya, Kamal Prasad; Brunet, Jörg; Cousins, Sara A. O.; Decocq, Guillaume. (2019) No genetic erosion after five generations for Impatiens glandulifera populations across the invaded range in Europe. BMC Genetics
Academic article
Rheubottom, Sarah I.; Barrio, Isabel C.; Kozlov, Mikhail V.; Alatalo, Juha M.; Andersson, Tommi; Asmus, Ashley L.. (2019) Hiding in the background: community-level patterns in invertebrate herbivory across the tundra biome. Polar Biology
Academic article
Mienna, Ida Marielle; Speed, James David Mervyn; Bendiksby, Mika; Thornhill, Andrew H.; Mishler, Brent D.; Martin, Michael David. (2019) Differential patterns of floristic phylogenetic diversity across a post-glacial landscape. Journal of Biogeography
Academic article
Graae, Bente Jessen; Smith, Stuart W.; Speed, James David Mervyn; Marit Klemetsen, Arneberg. (2019) The impact of wild and domestic herbivores on aboveground productivity in an East-African savannah. NTNU
Masters thesis
Smith, Stuart; Graae, Bente Jessen; Bukombe, John; Hassan, Shombe N.; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob. (2019) Savannah trees buffer herbaceous plant biomass against wild and domestic herbivores. Applied Vegetation Science
Academic article
Speed, James David Mervyn; Martin, Michael David; Ballesteros, Jesús A.. (2019) Patterns and relationships of the distribution of arctic and boreal forest herbivores: A three-dimensional approach. NTNU
Masters thesis
Haukenes, Vilde Lytskjold; Speed, James David Mervyn; Graae, Bente Jessen; Smith, Stuart. (2019) Carbon stocks across the Serengeti ecosystem: Impacts of climate, land management and woody plant cover. NTNU
Masters thesis
Snøen, Ingrid Bekken; Speed, James David Mervyn; Kolstad, Anders Lorentzen; Austrheim, Gunnar. (2019) Use of LiDAR Data in Assessing Effects of Moose Browsing on Boreal Forests. NTNU
Masters thesis
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Graae, Bente Jessen; Solberg, Erling Johan; Strimbeck, Richard; Speed, James David Mervyn. (2019) Moose effects on soil temperatures, tree canopies, and understory vegetation: a path analysis. Ecosphere
Academic article
Graae, Bente Jessen; Smith, Stuart W.; Sundsdal, Anders; Speed, James David Mervyn. (2019) Teatime for termites: Understanding the impact of human land-use and climate on termite and microbial litter decomposition. NTNU
Masters thesis

2018

Speed, James David Mervyn; Bendiksby, Mika; Finstad, Anders Gravbrøt; Hassel, Kristian; Kolstad, Anders Lorentzen; Prestø, Tommy. (2018) Contrasting spatial, temporal and environmental patterns in observation and specimen based species occurrence data. PLOS ONE
Academic article
Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2018) Tundraen blir varmere og plantene blir høyere .
Website (informational material)
Kjærstad, Gaute; Arnekleiv, Jo Vegar; Speed, James David Mervyn; Herland, Anne Karine. (2018) Effects of hydropeaking on benthic invertebrate community composition in two central Norwegian rivers. Rivers Research and Applications: an international journal devoted to river research and management
Academic article
Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2018) Tre tips til deg som vil drive med folkeforskning.
Website (informational material)
Barrio, Isabel C.; Lindén, Elin; te Beest, Mariska; Olofsson, Johan; Rocha, Adrian; Soininen, Eeva M. (2018) Publisher Correction to: Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome. Polar Biology
Errata
Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Thomas, Haydn J.D.; Alatalo, Juha M.. (2018) Tundra Trait Team: A database of plant traits spanning the tundra biome. Global Ecology and Biogeography
Academic article
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; De Vriendt, Laurent; Speed, James David Mervyn. (2018) Pervasive moose browsing in boreal forests alters successional trajectories by severely suppressing keystone species. Ecosphere
Academic article
Thingstad, Per Gustav; Daverdin, Marc; Speed, James David Mervyn. (2018) Modelling Capercaillie (Tetrao urogallus) lek sites distribution and their limiting factors in a central Norwegian managed forest landscape. Ornis Norvegica
Academic article
Hofgaard, Annika; Cooper, Elisabeth J.; Speed, James David Mervyn. (2018) Høyere planter tar over i et varmere Arktis . Aftenposten Viten
Feature article
Helsen, Kenny; Kapás, Rozália Erzsebet; Rakvaag, Grete; Speed, James David Mervyn; Graae, Bente Jessen. (2018) Impacts of an invasive plant on primary production: Testing a functional trait-based framework with a greenhouse experiment. Journal of Vegetation Science (JVS)
Academic article
Thomas, Haydn J.D.; Myers-Smith, Isla H.; Bjorkman, Anne D.; Elmendorf, Sarah C.; Blok, Daan; Cornelissen, Johannes H. C.. (2018) Traditional plant functional groups explain variation in economic but not size‐related traits across the tundra biome. Global Ecology and Biogeography
Academic article
Anderson, T. Michael; Ngoti, Philbert M.; Nzunda, Mawazo L.; Griffith, Daniel M.; Speed, James David Mervyn; Fossøy, Frode. (2018) The burning question: does fire affect habitat selection and forage preference of the black rhinoceros Diceros bicornis in East African savannahs?. Oryx
Academic article
Meleshko, Olena; Stenøien, Hans K.; Speed, James David Mervyn; Flatberg, Kjell Ivar; Kyrkjeeide, Magni Olsen; Hassel, Kristian. (2018) Is interspecific gene flow and speciation in peatmosses (Sphagnum) constrained by phylogenetic relationship and life-history traits?. Lindbergia
Academic literature review
Soininen, Eeva M; Barrio, Isabel C.; Jepsen, Jane Uhd; Ehrich, Dorothee; Ravolainen, Virve; Speed, James David Mervyn. (2018) Evidence of effects of herbivory on Arctic vegetation: a systematic map protocol. Environmental Evidence
Academic article
Mienna, Ida Marielle; Martin, Michael David; Speed, James David Mervyn; Bendiksby, Mika. (2018) Patterns and drivers of phylogenetic diversity and endemism in the Norwegian vascular flora. NTNU
Masters thesis
Fandrem, Marte; Speed, James David Mervyn; Lyngstad, Anders. (2018) Typisk høgmyr som indikator i Naturindeks for Norge. NTNU Vitenskapsmuseet naturhistorisk rapport (5)
Report
Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Rüger, Nadja; Beck, Pieter S. A.. (2018) Plant functional trait change across a warming tundra biome. Nature
Academic article
Helsen, Kenny; Smith, Stuart; Brunet, J; Cousins, Sara A.O.; De Frenne, Pieter; Kimberley, Adam. (2018) Impact of an invasive alien plant on litter decomposition along a latitudinal gradient. Ecosphere
Academic article
Smith, Stuart; Speed, James David Mervyn; Bukombe, John; Hassan, Shombe Ntaraluka; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob. (2018) Litter type and termites regulate root decomposition across contrasting savanna land-uses . Oikos
Academic article

2017

Wangen, Kristin; Speed, James David Mervyn; Hassel, Kristian. (2017) How does microclimate affect the growth of the rare liverwort Scapania nimbosa?. Lindbergia
Academic article
Barrio, Isabel C.; Lindén, Elin; te Beest, Mariska; Olofsson, Johan; Rocha, Adrian ; Soininen, Eeva M. (2017) Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome. Polar Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar. (2017) The importance of herbivore density and management as determinants of the distribution of rare plant species. Biological Conservation
Academic article
Graae, Bente Jessen; Vandvik, Vigdis; Armbruster, W. Scott; Eiserhardt, Wolf L.; Svenning, Jens-Christian; Hylander, Kristoffer. (2017) Stay or go - how topographic complexity influences alpine plant population and community responses to climate change. Perspectives in plant ecology, evolution and systematics
Academic article
Skjelbred, Ina Åsnes; Speed, James David Mervyn. (2017) Phylogenetic Diversity of Arctic Vertebrate Herbivores. NTNU
Masters thesis
Gebreyohanis, Winta; Speed, James David Mervyn. (2017) THE EFFECTS OF EXCLUSION OF BROWSING MOOSE ON ABOVE GROUND CARBON STOCKS IN EARLY SUCCESSIONAL STAGES IN BOREAL FORESTS. NTNU
Masters thesis
Kavana, Pius Yoram; Mahonge, Christopher P.; Sangeda, Anthony Z.; Mtengeti, Ephraim J.; Fyumagwa, Robert; Nindi, Stephen. (2017) Panorama of agro-pastoralism in western Serengeti: A review and synthesis. Livestock Research for Rural Development
Academic literature review
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; Venete, Aurel M A; Woodin, Sarah J.; Speed, James David Mervyn. (2017) Cervid Exclusion Alters Boreal Forest Properties with Little Cascading Impacts on Soils. Ecosystems
Academic article

2016

Anderson, Helen; Speed, James David Mervyn; Madsen, Jesper; Pedersen, Åshild Ønvik; Tombre, Ingunn; van der Wal, René. (2016) Late snow melt moderates herbivore disturbance of the Arctic tundra. Écoscience
Academic article
Wangen, Kristin; Speed, James David Mervyn; Hassel, Kristian. (2016) Hyper-oceanic liverwort species of conservation concern: Evidence for dispersal limitation and identification of suitable uncolonised regions. Biodiversity and Conservation
Academic article
Ross, Louise C.; Austrheim, Gunnar; Asheim, Leif Jarle; Bjarnason, Gunnar; Feilberg, Jon; Fosaa, Anna Maria. (2016) Sheep grazing in the North Atlantic region: A long-term perspective on environmental sustainability. Ambio
Academic article
Barrio, Isabel; Bueno, Guillermo; Gartzia, Maite; Soininen, Eeva M; Christie, Katie; Speed, James David Mervyn. (2016) Biotic interactions mediate patterns of herbivore diversity in the Arctic. Global Ecology and Biogeography
Academic article
Austrheim, Gunnar; Speed, James David Mervyn; Evju, Marianne; Hester, Alison; Holand, Øystein; Loe, Leif Egil. (2016) Synergies and trade-offs between ecosystem services in analpine ecosystem grazed by sheep – An experimental approach. Basic and Applied Ecology
Academic article

2015

Myers-Smith, Isla H.; Elmendorf, Sarah C.; Beck, Pieter S.A.; Wilmking, Martin; Hallinger, Martin; Blok, Daan. (2015) Climate sensitivity of shrub growth across the tundra biome. Nature Climate Change
Academic article
Austrheim, Gunnar; Endresen, Dag Terje Filip; Finstad, Anders Gravbrøt; Grytnes, John-Arvid; Koch, Wouter; Lindgaard, Arild. (2015) Sharing vegetation data: Outline of an infrastructure to secure scientific and technical standards that can facilitate data exchange. NTNU Vitenskapsmuseet naturhistorisk rapport (4)
Report
Kjærstad, Gaute; Arnekleiv, Jo Vegar; Speed, James David Mervyn. (2015) Effects of Three Consecutive Rotenone Treatments on the Benthic Macroinvertebrate Fauna of the River Ogna, Central Norway. Rivers Research and Applications: an international journal devoted to river research and management
Academic article
Speed, James David Mervyn; Martinsen, Vegard; Hester, Alison J.; Holand, Øystein; Mulder, Jan; Mysterud, Atle. (2015) Continuous and discontinuous variation in ecosystem carbon stocks with elevation across a treeline ecotone. Biogeosciences
Academic article
Thingstad, Per Gustav; Hogstad, Olav; Speed, James David Mervyn. (2015) The influence of climatic conditions in breeding grounds and migratory flyways on a subalpine Norwegian Willow Warbler Phylloscopus trochilus population. Ornis Fennica
Academic article
Wangen, Kristin; Hassel, Kristian; Speed, James David Mervyn. (2015) Understanding the Ecology of Three Mixed Northern Hepatic Mat Species at Regional Scale through Species Distribution Modelling, and Local Scale through Growth Measurements and Micro-Climatic Assessment. Norvegian University of Science and Technology
Masters thesis
Austrheim, Gunnar; Speed, James David Mervyn; Nes, Toril. (2015) The Effects of Moose (Alces alces)Browsing on Boreal Tree Species in Norway and Quebec. Norwegian University of Science and Technology
Masters thesis
Austrheim, Gunnar; Speed, James David Mervyn; Maurset, Marie Uhlen. (2015) Long-term Effects of Shifts in Grazing Pressure on Alpine Plant Species along an Elevational Gradient. Norwegian University of Science and Technology
Masters thesis
Bernes, Claes; Carpenter, Stephen R.; Gårdmark, Anna; Larsson, Per; Persson, Lennart; Skov, Christian. (2015) What is the influence of a reduction of planktivorous and benthivorous fish on water quality in temperate eutrophic lakes? A systematic review. Environmental Evidence
Academic literature review
Wasof, Safaa; Lenoir, Jonathan; Aarrestad, Per Arild; Alsos, Inger Greve; Armbruster, W. Scott; Austrheim, Gunnar. (2015) Disjunct populations of European vascular plant species keep the same climatic niches. Global Ecology and Biogeography
Academic article
Pedersen, Åshild Ønvik; Ravolainen, Virve; Tombre, Ingunn; Anderson, Helen; van der Wal, René; Madsen, Jesper. (2015) Grubbers on the Svalbard tundra: Why do we need monitoring?.
Chapter
Bernes, Claes; Bråthen, Kari Anne; Forbes, Bruce C.; Speed, James David Mervyn; Moen, Jon. (2015) What are the impacts of reindeer/caribou (Rangifer tarandus L.) on arctic and alpine vegetation? A systematic review. Environmental Evidence
Academic literature review
Anderson, Helen; Hübner, Christiane E.; Speed, James David Mervyn; Madsen, Jesper; van der Wal, René. (2015) Biding time before breeding: flexible use of the Arctic landscape by migratory geese during spring. Polar Research
Academic article

2014

Speed, James David Mervyn; Anderson, Helen; Madsen, Jesper; Pedersen, Åshild Ønvik; Tombre, Ingunn; van der Wal, René. (2014) Effects of foraging by pink-footed geese on tundra vegetation in Svalbard: an assessment of extent and a proposal for a monitoring program. Aarhus Universitetsforlag Aarhus Universitetsforlag
Report
Austrheim, Gunnar; Speed, James David Mervyn; Martinsen, Vegard; Mulder, Jan; Mysterud, Atle. (2014) Experimental effects of herbivore density on above-ground plant biomass in an alpine grassland ecosystem. Arctic, Antarctic and Alpine research
Academic article
Sjøgren, Per Johan E; Solem, Thyra Lise; Stenvik, Lars Fredrik; Tretvik, Aud Mikkelsen; Daverdin, Marc; Speed, James David Mervyn. (2014) Quantification of past plant abundances based on the R-value model: Exemplified by an impact assessment of pre-historic iron production and summer farming in Budalen, central Norway. The Holocene
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Meisingset, Erling L.; Mysterud, Atle; Tremblay, Jean-Pierre. (2014) General and specific responses of understory vegetation to cervid herbivory across a range of boreal forests. Oikos
Academic article
Speed, James David Mervyn; Martinsen, Vegard; Mysterud, Atle; Mulder, Jan; Holand, Øystein; Austrheim, Gunnar. (2014) Long-Term Increase in Aboveground Carbon Stocks Following Exclusion of Grazers and Forest Establishment in an Alpine Ecosystem. Ecosystems
Academic article
Miljeteig, Cecilie; Olsen, Anders Johny; Båtnes, Anna Solvang; Altin, Dag; Nordtug, Trond; Alver, Morten. (2014) Sex and life stage dependent phototactic response of the marine copepod Calanus finmarchicus (Copepoda: Calanoida). Journal of Experimental Marine Biology and Ecology
Academic article
Speed, James David Mervyn; Anderson, Helen; Madsen, Jesper; Pedersen, Åshild Ø.; Tombre, Ingunn; van der Wal, René. (2014) Effects of foraging by pink-footed geese on tundra vegetation in Svalbard: an assessment of extent and a proposal for a monitoring program. Svalbard Environmental Protection Fund
Report

2013

Lenoir, Jonathan; Graae, Bente Jessen; Aarrestad, Per Arild; Alsos, Inger Greve; Armbruster, William Scott; Austrheim, Gunnar. (2013) Local temperatures inferred from plant communities suggest strong spatial buffering of climate warming across Northern Europe. Global Change Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Mysterud, Atle. (2013) The Response of Alpine Salix Shrubs to Long-Term Browsing Varies with Elevation and Herbivore Density. Arctic, Antarctic and Alpine research
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Birks, Harry John Betteley; Thompson, Des B.A.. (2013) Can we value landscapes by combining natural and cultural heritage?. Bulletin of the British Ecological Society
Article in business/trade/industry journal
Myking, Tor; Solberg, Erling Johan; Austrheim, Gunnar; Speed, James David Mervyn; Bøhler, Fredrik; Astrup, Rasmus Andreas. (2013) Browsing of sallow (Salix caprea L.) and rowan (Sorbus aucuparia L.) in the context of life history strategies: a literature review. European Journal of Forest Research
Academic literature review
Bernes, Claes; Bråthen, Kari Anne; Forbes, Bruce C.; Hofgaard, Annika; Moen, Jon; Speed, James David Mervyn. (2013) What are the impacts of reindeer/caribou (Rangifer tarandus L.) on arctic and alpine vegetation? A systematic review protocol. Environmental Evidence
Academic article
Pedersen, Åshild Ønvik; Speed, James David Mervyn; Tombre, Ingunn. (2013) Prevalence of pink-footed goose grubbing in the arctic tundra increases with population expansion. Polar Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Mysterud, Atle. (2013) The response of plant diversity to grazing varies along an elevational gradient. Journal of Ecology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Solberg, Erling Johan; Tremblay, Jean-Pierre. (2013) Regional-scale alteration of clear-cut forest regeneration caused by moose browsing. Forest Ecology and Management
Academic article
Speed, James David Mervyn; Meisingset, Erling L.; Austrheim, Gunnar; Hester, Alison J.; Mysterud, Atle; Tremblay, Jean-Pierre. (2013) Low intensities of red deer browsing constrain rowan growth in mature boreal forests of western Norway. Écoscience
Academic article
Solberg, Erling Johan; Speed, James David Mervyn; Meisingset, Erling; Daverdin, Marc; Mysterud, Atle; Austrheim, Gunnar. (2013) En skog uten hjortevilt. Gryende kunnskap fra uthegningsstudiene. Hjorteviltet
Popular scientific article

2012

Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2012) Elevational advance of alpine plant communities is buffered by herbivory. Journal of Vegetation Science (JVS)
Academic article
Solberg, Erling Johan; Myking, Tor; Austrheim, Gunnar; Bøhler, Fredrik; Eriksen, Rune; Speed, James David Mervyn. (2012) Rogn, osp og selje-Har de en framtid i norsk natur?. NINA rapport (806)
Report
Bernes, Claes; Forbes, Bruce C.; Hofgaard, Annika; Moen, Jon; Speed, James David Mervyn. (2012) What are the impacts of reindeer/caribou (Rangifer tarandus) on mountain and arctic vegetation? A systematic review protocol. Mistra Council for Evidnece-Based Environmental Management
Report
Speed, James David Mervyn; Austrheim, Gunnar; Birks, Harry John Betteley; Johnson, Sally; Kvamme, Mons; Nagy, Laszlo. (2012) Natural and cultural heritage in mountain landscapes: towards an integrated valuation. International Journal of Biodiversity Science, Ecosystem Services & Management
Academic article

2011

Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2011) Growth limitation of mountain birch caused by sheep browsing at the altitudinal treeline. Forest Ecology and Management
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2011) Browsing interacts with climate to determine tree-ring increment. Functional Ecology
Academic article

2010

Speed, James David Mervyn; Woodin, Sarah J.; Tømmervik, Hans; van der Wal, Rene. (2010) Extrapolating herbivore-induced carbon loss across an arctic landscape. Polar Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2010) Experimental evidence for herbivore limitation of the treeline. Ecology
Academic article
Speed, James D.M.; Cooper, Elisabeth; Jonsdottir, Ingibjørg; van der Wal, Rene; Woodin, Sarah J.. (2010) Plant community properties predict vegetation resilience to herbivore disturbance in the Arctic. Journal of Ecology
Academic article

2009

Speed, James D.M.; Woodin, Sarah J.; Tømmervik, Hans; Tamstorf, Mikkel P.; van der Wal, Rene. (2009) Predicting habitat utilization and extent of ecosystem disturbance by an increasing herbivore population. Ecosystems
Academic article

Journal publications

Speed, James David Mervyn; Sobocinski, Anna; Kolstad, Anders Lorentzen; Linnell, John Durrus; Solberg, Erling Johan; Mattisson, Jenny. (2025) The trophic distribution of biomass in ecosystems with co-occurring wildlife and livestock. Scientific Reports
Academic article
Williamson, David Roddan; Prestø, Tommy; Westergaard, Kristine Bakke; Trascau, Beatrice Maria; Vange, Vibekke; Hassel, Kristian. (2025) Long‐term trends in global flowering phenology. New Phytologist
Academic article
Brandslet, Steinar; Westergaard, Kristine Bakke; Speed, James David Mervyn. (2024) Fremmede arter truer plantelivet på Svalbard. https://forskning.no/
Popular scientific article
Brandslet, Steinar; Westergaard, Kristine Bakke; Speed, James David Mervyn. (2024) Svalbard: Fremmede arter truer sårbart planteliv. Gemini.no
Popular scientific article
Ravolainen, Virve; Paulsen, Ingrid Marie Garfelt; Eischeid, Isabell; Forbey, Jennifer Sorensen; Fuglei, Eva; Hájek, Tomás. (2024) Low spatial habitat overlap of herbivores in the High Arctic tundra. Global Ecology and Conservation
Academic article
Barbero-Palacios, Laura; Barrio, Isabel C.; García Criado, Mariana; Kater, Ilona; Petit Bon, Matteo; Kolari, Tiina H. M.. (2024) Herbivore diversity effects on Arctic tundra ecosystems: a systematic review. Environmental Evidence
Academic literature review
Defourneaux, Mathilde; Barrio, Isabel C.; Boulanger-Lapointe, Noémie; Speed, James David Mervyn. (2024) Long-term changes in herbivore community and vegetation impact of wild and domestic herbivores across Iceland. Ambio
Academic article
Speed, James David Mervyn; Pertierra, Luis R.; Westergaard, Kristine Bakke. (2024) The potential area of occupancy of non-native plants across a warming high-Arctic archipelago: Implications for strategic biosecurity management. NeoBiota
Academic article
Ivison, Katy; van Kleunen, Mark; Speed, James David Mervyn; Vange, Vibekke; Pujara, Sonia; Boch, Steffen. (2024) Non-Native, Non-Naturalised Plants Suffer Less Herbivory Than Native Plants Across European Botanical Gardens. Diversity and Distributions: A Journal of Conservation Biogeography
Academic article
Zhang, Lan; Hu, Xiangping; Austrheim, Gunnar; Speed, James David Mervyn; Zhao, Wenwu; Cherubini, Francesco. (2024) Disentangling the effects of climate variability and herbivory on spatial and temporal changes in northern vegetation greening. Ecological Indicators
Academic article
Furness, Euan N.; Speed, James David Mervyn; Garwood, Russell J.; Sutton, Mark D.. (2024) The role of evolutionary processes in determining trophic structure. Oikos
Academic article
Ivison, Katy; Vange, Vibekke; Speed, James David Mervyn; Dawson, Wayne. (2024) Invasive plants grow taller under experimental warming, but mediated effects of biotic interactions are species-specific. Oikos
Academic article
Guidetti, Roberto; Jönsson, K. Ingemar; Kaczmarek, Łukasz; Meier, Terje; Speed, James David Mervyn; Prestø, Tommy. (2023) Tardigrade diversity and community composition across Norwegian boreal forests. Zoological Journal of the Linnean Society
Academic article
Nygaard, Malene; Kopatz, Alexander; Speed, James David Mervyn; Martin, Michael David; Prestø, Tommy; Kleven, Oddmund. (2023) SNP genotyping and environmental niche modelling using herbarium specimens of the northern dragonhead, Dracocephalum ruyschiana (Lamiaceae). Bauhinia
Abstract
Petersen, Tanja Kofod; Kolstad, Anders Lorentzen; Kouki, Jari; Leroux, Shawn J.; Potvin, Lynette R.; Tremblay, Jean-Pierre. (2023) Airborne laser scanning reveals uniform responses of forest structure to moose (Alces alces) across the boreal forest biome. Journal of Ecology
Academic article
Matten, Damaris Marina; Mienna, Ida Marielle; Bieker, Vanessa Carina; Mishler, Brent D.; Moen, Victoria Stornes; Nygård, Malene Østreng. (2023) Spatial patterns of phylogenetic and species diversity of fennoscandian vascular plants in protected areas. Biodiversity and Conservation
Academic article
Salisbury, John Maxwell; Hu, Xiangping; Speed, James David Mervyn; Iordan, Cristina Maria; Austrheim, Gunnar; Cherubini, Francesco. (2023) Net Climate Effects of Moose Browsing in Early Successional Boreal Forests by Integrating Carbon and Albedo Dynamics. Journal of Geophysical Research (JGR): Biogeosciences
Academic article
De Vriendt, Laurent; Barrette, Martin; Kolstad, Anders Lorentzen; Vuorinen, Katariina Elsa M; Speed, James David Mervyn; Lavoie, Sébastien. (2023) Heavy browsing pressure by moose (Alces alces) can interfere with the objectives of ecosystem-based forest management. Forest Ecology and Management
Academic article
Nygård, Malene Østreng; Kopatz, Alexander; Speed, James David Mervyn; Martin, Michael David; Prestø, Tommy; Kleven, Oddmund. (2023) SNP genotyping and environmental niche modelling using herbarium specimens of the northern dragonhead, Dracocephalum ruyschiana (Lamiaceae). Bauhinia
Academic article
Martin, Andrew C.; Assmann, Jakob J.; Bradshaw, Richard H. W.; Kuoppamaa, Mari; Kuosmanen, Niina I; Normand, Signe. (2022) What evidence exists for temporal variability in Arctic terrestrial and freshwater biodiversity throughout the Holocene? A systematic map protocol. Environmental Evidence
Academic article
Speed, James David Mervyn; Evankow, Ann; Petersen, Tanja Kofod; Ranke, Peter Sjolte; Nilsen, Nellie Henriette; Turner, Grace Winifred. (2022) A regionally coherent ecological fingerprint of climate change, evidenced from natural history collections. Ecology and Evolution
Academic article
Soininen, Eeva M; Barrio, Isabel C.; Bjørkås, Ragnhild; Björnsdóttir, Katrín; Ehrich, Dorothee; Hopping, Kelly. (2022) Correction to: Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map (Environmental Evidence, (2021), 10, 1, (25), 10.1186/s13750-021-00240-0). Environmental Evidence
Errata
Nygaard, Malene; Kopatz, Alexander; Speed, James David Mervyn; Martin, Michael David; Prestø, Tommy; Kleven, Oddmund. (2022) Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens. Ecology and Evolution
Academic article
Vuorinen, Katariina Elsa Maria; Austrheim, Gunnar; Tremblay, Jean-Pierre; Myers-Smith, Isla H.; Hortman, Hans Ivar; Frank, Peter Anthony. (2022) Growth rings show limited evidence for ungulates’ potential to suppress shrubs across the Arctic. Environmental Research Letters
Academic article
Ivison, Katy; Speed, James David Mervyn; Prestø, Tommy; Dawson, Wayne. (2022) Testing enemy release of non-native plants across time and space using herbarium specimens in Norway. Journal of Ecology
Academic article
Awuah, Joana; Smith, Stuart; Speed, James David Mervyn; Graae, Bente Jessen. (2022) Can seasonal fire management reduce the risk of carbon loss from wildfires in a protected Guinea savanna?. Ecosphere
Academic article
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Frøyen, Yngve Karl; Austrheim, Gunnar. (2022) Urbanisation and land-cover change affect functional, but not compositional turnover of bird communities. Urban Ecosystems
Academic article
Petersen, Tanja Kofod; Vuorinen, Katariina Elsa M; Bendiksby, Mika; Speed, James David Mervyn. (2022) Climate and land-use drive the functional composition of vascular plant assemblages across Norway. Nordic Journal of Botany (NJB)
Academic article
Lindén, Elin; te Beest, Mariska; Aubreu, Ilka; Moritz, Thomas; Sundqvist, Maja K.; Barrio, Isabel C.. (2022) Circum-Arctic distribution of chemical anti-herbivore compounds suggests biome-wide trade-off in defence strategies in Arctic shrubs. Ecography
Academic article
Barrio, Isabel C.; Barbero-Palacios, Laura; Kaarlejärvi, Elina; Speed, James David Mervyn; Heiðmarsson, Starri; Hik, David S.. (2022) What are the effects of herbivore diversity on tundra ecosystems? A systematic review protocol. Environmental Evidence
Academic literature review
Mienna, Ida Marielle; Austrheim, Gunnar; Klanderud, Kari; Bollandsås, Ole Martin; Speed, James David Mervyn. (2022) Legacy effects of herbivory on treeline dynamics along an elevational gradient. Oecologia
Academic article
Kolstad, Anders Lorentzen; Snøan, Ingrid Bekken; Austrheim, Gunnar; Bollandsås, Ole Martin; Solberg, Erling Johan; Speed, James David Mervyn. (2021) Airborne laser scanning reveals increased growth and complexity of boreal forest canopies across a network of ungulate exclosures in Norway. Remote Sensing in Ecology and Conservation
Academic article
Aguilar Tomasini, Maria Alejandra; Martin, Michael David; Speed, James David Mervyn. (2021) Assessing spatial patterns of phylogenetic diversity of Mexican mammals for biodiversity conservation. Global Ecology and Conservation
Academic article
Speed, James David Mervyn; Chimal Ballesteros, Jesus Adrian; Martin, Michael David; Barrio, Isabel C.; Vuorinen, Katariina Elsa Maria; Soininen, Eeva Marjatta. (2021) Will borealization of Arctic tundra herbivore communities be driven by climate warming or vegetation change?. Global Change Biology
Academic article
Wana, Desalegn; Smith, Stuart; Coleman, Kjirsten Elizabeth Robyne; Speed, James David Mervyn. (2021) Proximity to high densities of pastoral settlements reduces grassland regrowth in a protected tropical savanna. Biotropica
Academic article
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Austrheim, Gunnar. (2021) Competitors and ruderals go to town: plant community composition and function along an urbanisation gradient. Nordic Journal of Botany (NJB)
Academic article
Nygård, Malene Østreng; Kemppainen, Petri; Speed, James D. M.; Elven, Reidar; Flatberg, Kjell Ivar; Galten, Leif Persen. (2021) Combining population genomics and ecological niche modeling to assess taxon limits between Carex jemtlandica and C. lepidocarpa. Journal of Systematics and Evolution
Academic article
Petersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar; Frøyen, Yngve Karl. (2021) Hvilke arter skal vi bo sammen med i byen?. Forskersonen.no
Feature article
Vuorinen, Katariina Elsa Maria; Oksanen, Tarja Maarit; Oksanen, Lauri; Speed, James David Mervyn; Vuorisalo, Timo. (2021) Erratum to: Why don't all species overexploit (Oikos, (2021), 130, 11, (1835-1848), 10.1111/oik.08358). Oikos
Errata
Lembrechts, Jonas J.; van den Hoogen, Johan; Aalto, Juha; Ashcroft, Michael B.; De Frenne, Pieter; Kemppinen, Julia. (2021) Global maps of soil temperature. Global Change Biology
Academic article
Champagne, Emilie; Raymond, Patricia; Royo, Alejandro; Speed, James David Mervyn; Tremblay, Jean-Pierre; Côte, Steeve D. (2021) A Review of Ungulate Impacts on the Success of Climate-Adapted Forest Management Strategies. Current Forestry Reports
Academic literature review
Vuorinen, Katariina Elsa Maria; Austrheim, Gunnar; Mysterud, Atle; Gya, Ragnhild; Vandvik, Vigdis; Grytnes, John Arvid. (2021) Functional traits of alpine plant communities show long-term resistance to changing herbivore densities. Ecosphere
Academic article
Kroeger, Svenja; Hanslin, Hans Martin; Lennartsson, Tommy; D'Amico, Marcello; Kollmann, Johannes; Fischer, Christina. (2021) Impacts of roads on bird species richness: A meta-analysis considering road types, habitats and feeding guilds. Science of the Total Environment
Academic article
Barrio, Isabel C.; Ehrich, Dorothee; Soininen, Eeva M; Ravolainen, Virve; Bueno, C. G.; Gilg, Olivier. (2021) Developing common protocols to measure tundra herbivory across spatial scales. Arctic Science
Academic article
Soininen, Eeva M; Barrio, Isabel C.; Bjørkås, Ragnhild; Björnsdóttir, Katrin; Ehrich, Dorothee; Hopping, Kelly A.. (2021) Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map. Environmental Evidence
Academic literature review
Vuorinen, Katariina Elsa Maria; Oksanen, Tarja Maarit; Oksanen, Lauri; Vuorisalo, Timo; Speed, James David Mervyn. (2021) Why don't all species overexploit?. Oikos
Academic literature review
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Austrheim, Gunnar. (2021) Species data for understanding biodiversity dynamics: The what, where and when of species occurrence data collection. Ecological Solutions and Evidence
Academic article
Vuorinen, Katariina; Rao, Shaila; Hester, Alison J.; Speed, James David Mervyn. (2020) Herbivory and climate as drivers of woody plant growth: Do deer decrease the impacts of warming?. Ecological Applications
Academic article
Mienna, Ida Marielle; Speed, James David Mervyn; Klanderud, Kari; Austrheim, Gunnar; Næsset, Erik; Bollandsås, Ole Martin. (2020) The relative role of climate and herbivory in driving treeline dynamics along a latitudinal gradient. Journal of Vegetation Science (JVS)
Academic article
Petersen, Tanja Kofod; Speed, James David Mervyn; Grøtan, Vidar; Austrheim, Gunnar. (2020) Urban aliens and threatened near-naturals: Land-cover affects the species richness of alien- and threatened species in an urban-rural setting. Scientific Reports
Academic article
Timdal, Einar; Westberg, Martin; Haugan, Reidar; Hofton, Tom Hellik; Holien, Håkon; Speed, James David Mervyn. (2020) Integrative taxonomy reveals a new species, Nephroma orvoi, in the N. parile species complex (lichenized Ascomycota). Graphis Scripta
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Bendiksby, Mika; Kolstad, Anders Lorentzen; Vuorinen, Katariina. (2020) Increasing Cervidae populations have variable impacts on habitat suitability for threatened forest plant and lichen species. Forest Ecology and Management
Academic article
Vuorinen, Katariina; Kolstad, Anders Lorentzen; De Vriendt, Laurent; Austrheim, Gunnar; Jean-Pierre, Tremblay; Solberg, Erling Johan. (2020) Cool as a moose: How can browsing counteract climate warming effects across boreal forest ecosystems?. Ecology
Academic article
Austrheim, Gunnar; Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2020) Vi tåler ikke et nytt tiår med neglisjering av naturen. Forskning.no
Feature article
Tuomi, Maria; Väisänen, Maria; Ylänne, H; Brearley, Francis Q.; Barrio, Isabel C.; Bråthen, Kari Anne. (2020) Stomping in silence: Conceptualizing trampling effects on soils in polar tundra. Functional Ecology
Academic literature review
Thomas, Haydn J.D.; Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, S. C.; Kattge, J.; Diaz, S.. (2020) Global plant trait relationships extend to theclimatic extremes of the tundra biome. Nature Communications
Academic article
Lembrechts, Jonas J.; Aalto, Juha; Ashcroft, Michael B.; De Frenne, Pieter; Kopecký, Martin; Lenoir, Jonathan. (2020) SoilTemp: A global database of near-surface temperature. Global Change Biology
Academic article
Sundsdal, Anders; Graae, Bente Jessen; Speed, James David Mervyn; Bukombe, John; Mtweve, Philipo Jacob; Klementsen Arneberg, Marit. (2020) Teatime in the Serengeti: macrodetritivores sustain recalcitrant plant litter decomposition across human-modified tropical savannahs. Plant and Soil
Academic article
Halbritter Rechsteiner, Aud Helen; De Boeck, Hans J.; Eycott, Amy Elizabeth; Reinsch, Sabine; Robinson, David A.; Vicca, Sara. (2019) The handbook for standardized field and laboratory measurements in terrestrial climate change experiments and observational studies (ClimEx). Methods in Ecology and Evolution
Academic article
Ross, Louise C.; Speed, James David Mervyn; Øien, Dag-Inge; Grygoruk, Mateusz; Hassel, Kristian; Lyngstad, Anders. (2019) Can mowing restore boreal rich-fen vegetation in the face of climate change?. PLOS ONE
Academic article
Speed, James David Mervyn; Skjelbred, Ina Åsnes; Barrio, Isabel C.; Martin, Michael David; Berteaux, Dominique; Bueno, C. Guillermo. (2019) Trophic interactions and abiotic factors drive functional and phylogenetic structure of vertebrate herbivore communities across the Arctic tundra biome. Ecography
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Kolstad, Anders Lorentzen; Solberg, Erling Johan. (2019) Long-term changes in northern large-herbivore communities reveal differential rewilding rates in space and time. PLOS ONE
Academic article
Helsen, Kenny; Hagenblad, Jenny; Acharya, Kamal Prasad; Brunet, Jörg; Cousins, Sara A. O.; Decocq, Guillaume. (2019) No genetic erosion after five generations for Impatiens glandulifera populations across the invaded range in Europe. BMC Genetics
Academic article
Rheubottom, Sarah I.; Barrio, Isabel C.; Kozlov, Mikhail V.; Alatalo, Juha M.; Andersson, Tommi; Asmus, Ashley L.. (2019) Hiding in the background: community-level patterns in invertebrate herbivory across the tundra biome. Polar Biology
Academic article
Mienna, Ida Marielle; Speed, James David Mervyn; Bendiksby, Mika; Thornhill, Andrew H.; Mishler, Brent D.; Martin, Michael David. (2019) Differential patterns of floristic phylogenetic diversity across a post-glacial landscape. Journal of Biogeography
Academic article
Smith, Stuart; Graae, Bente Jessen; Bukombe, John; Hassan, Shombe N.; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob. (2019) Savannah trees buffer herbaceous plant biomass against wild and domestic herbivores. Applied Vegetation Science
Academic article
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Graae, Bente Jessen; Solberg, Erling Johan; Strimbeck, Richard; Speed, James David Mervyn. (2019) Moose effects on soil temperatures, tree canopies, and understory vegetation: a path analysis. Ecosphere
Academic article
Speed, James David Mervyn; Bendiksby, Mika; Finstad, Anders Gravbrøt; Hassel, Kristian; Kolstad, Anders Lorentzen; Prestø, Tommy. (2018) Contrasting spatial, temporal and environmental patterns in observation and specimen based species occurrence data. PLOS ONE
Academic article
Kjærstad, Gaute; Arnekleiv, Jo Vegar; Speed, James David Mervyn; Herland, Anne Karine. (2018) Effects of hydropeaking on benthic invertebrate community composition in two central Norwegian rivers. Rivers Research and Applications: an international journal devoted to river research and management
Academic article
Barrio, Isabel C.; Lindén, Elin; te Beest, Mariska; Olofsson, Johan; Rocha, Adrian; Soininen, Eeva M. (2018) Publisher Correction to: Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome. Polar Biology
Errata
Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Thomas, Haydn J.D.; Alatalo, Juha M.. (2018) Tundra Trait Team: A database of plant traits spanning the tundra biome. Global Ecology and Biogeography
Academic article
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; De Vriendt, Laurent; Speed, James David Mervyn. (2018) Pervasive moose browsing in boreal forests alters successional trajectories by severely suppressing keystone species. Ecosphere
Academic article
Thingstad, Per Gustav; Daverdin, Marc; Speed, James David Mervyn. (2018) Modelling Capercaillie (Tetrao urogallus) lek sites distribution and their limiting factors in a central Norwegian managed forest landscape. Ornis Norvegica
Academic article
Hofgaard, Annika; Cooper, Elisabeth J.; Speed, James David Mervyn. (2018) Høyere planter tar over i et varmere Arktis . Aftenposten Viten
Feature article
Helsen, Kenny; Kapás, Rozália Erzsebet; Rakvaag, Grete; Speed, James David Mervyn; Graae, Bente Jessen. (2018) Impacts of an invasive plant on primary production: Testing a functional trait-based framework with a greenhouse experiment. Journal of Vegetation Science (JVS)
Academic article
Thomas, Haydn J.D.; Myers-Smith, Isla H.; Bjorkman, Anne D.; Elmendorf, Sarah C.; Blok, Daan; Cornelissen, Johannes H. C.. (2018) Traditional plant functional groups explain variation in economic but not size‐related traits across the tundra biome. Global Ecology and Biogeography
Academic article
Anderson, T. Michael; Ngoti, Philbert M.; Nzunda, Mawazo L.; Griffith, Daniel M.; Speed, James David Mervyn; Fossøy, Frode. (2018) The burning question: does fire affect habitat selection and forage preference of the black rhinoceros Diceros bicornis in East African savannahs?. Oryx
Academic article
Meleshko, Olena; Stenøien, Hans K.; Speed, James David Mervyn; Flatberg, Kjell Ivar; Kyrkjeeide, Magni Olsen; Hassel, Kristian. (2018) Is interspecific gene flow and speciation in peatmosses (Sphagnum) constrained by phylogenetic relationship and life-history traits?. Lindbergia
Academic literature review
Soininen, Eeva M; Barrio, Isabel C.; Jepsen, Jane Uhd; Ehrich, Dorothee; Ravolainen, Virve; Speed, James David Mervyn. (2018) Evidence of effects of herbivory on Arctic vegetation: a systematic map protocol. Environmental Evidence
Academic article
Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Rüger, Nadja; Beck, Pieter S. A.. (2018) Plant functional trait change across a warming tundra biome. Nature
Academic article
Helsen, Kenny; Smith, Stuart; Brunet, J; Cousins, Sara A.O.; De Frenne, Pieter; Kimberley, Adam. (2018) Impact of an invasive alien plant on litter decomposition along a latitudinal gradient. Ecosphere
Academic article
Smith, Stuart; Speed, James David Mervyn; Bukombe, John; Hassan, Shombe Ntaraluka; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob. (2018) Litter type and termites regulate root decomposition across contrasting savanna land-uses . Oikos
Academic article
Wangen, Kristin; Speed, James David Mervyn; Hassel, Kristian. (2017) How does microclimate affect the growth of the rare liverwort Scapania nimbosa?. Lindbergia
Academic article
Barrio, Isabel C.; Lindén, Elin; te Beest, Mariska; Olofsson, Johan; Rocha, Adrian ; Soininen, Eeva M. (2017) Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome. Polar Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar. (2017) The importance of herbivore density and management as determinants of the distribution of rare plant species. Biological Conservation
Academic article
Graae, Bente Jessen; Vandvik, Vigdis; Armbruster, W. Scott; Eiserhardt, Wolf L.; Svenning, Jens-Christian; Hylander, Kristoffer. (2017) Stay or go - how topographic complexity influences alpine plant population and community responses to climate change. Perspectives in plant ecology, evolution and systematics
Academic article
Kavana, Pius Yoram; Mahonge, Christopher P.; Sangeda, Anthony Z.; Mtengeti, Ephraim J.; Fyumagwa, Robert; Nindi, Stephen. (2017) Panorama of agro-pastoralism in western Serengeti: A review and synthesis. Livestock Research for Rural Development
Academic literature review
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; Venete, Aurel M A; Woodin, Sarah J.; Speed, James David Mervyn. (2017) Cervid Exclusion Alters Boreal Forest Properties with Little Cascading Impacts on Soils. Ecosystems
Academic article
Anderson, Helen; Speed, James David Mervyn; Madsen, Jesper; Pedersen, Åshild Ønvik; Tombre, Ingunn; van der Wal, René. (2016) Late snow melt moderates herbivore disturbance of the Arctic tundra. Écoscience
Academic article
Wangen, Kristin; Speed, James David Mervyn; Hassel, Kristian. (2016) Hyper-oceanic liverwort species of conservation concern: Evidence for dispersal limitation and identification of suitable uncolonised regions. Biodiversity and Conservation
Academic article
Ross, Louise C.; Austrheim, Gunnar; Asheim, Leif Jarle; Bjarnason, Gunnar; Feilberg, Jon; Fosaa, Anna Maria. (2016) Sheep grazing in the North Atlantic region: A long-term perspective on environmental sustainability. Ambio
Academic article
Barrio, Isabel; Bueno, Guillermo; Gartzia, Maite; Soininen, Eeva M; Christie, Katie; Speed, James David Mervyn. (2016) Biotic interactions mediate patterns of herbivore diversity in the Arctic. Global Ecology and Biogeography
Academic article
Austrheim, Gunnar; Speed, James David Mervyn; Evju, Marianne; Hester, Alison; Holand, Øystein; Loe, Leif Egil. (2016) Synergies and trade-offs between ecosystem services in analpine ecosystem grazed by sheep – An experimental approach. Basic and Applied Ecology
Academic article
Myers-Smith, Isla H.; Elmendorf, Sarah C.; Beck, Pieter S.A.; Wilmking, Martin; Hallinger, Martin; Blok, Daan. (2015) Climate sensitivity of shrub growth across the tundra biome. Nature Climate Change
Academic article
Kjærstad, Gaute; Arnekleiv, Jo Vegar; Speed, James David Mervyn. (2015) Effects of Three Consecutive Rotenone Treatments on the Benthic Macroinvertebrate Fauna of the River Ogna, Central Norway. Rivers Research and Applications: an international journal devoted to river research and management
Academic article
Speed, James David Mervyn; Martinsen, Vegard; Hester, Alison J.; Holand, Øystein; Mulder, Jan; Mysterud, Atle. (2015) Continuous and discontinuous variation in ecosystem carbon stocks with elevation across a treeline ecotone. Biogeosciences
Academic article
Thingstad, Per Gustav; Hogstad, Olav; Speed, James David Mervyn. (2015) The influence of climatic conditions in breeding grounds and migratory flyways on a subalpine Norwegian Willow Warbler Phylloscopus trochilus population. Ornis Fennica
Academic article
Bernes, Claes; Carpenter, Stephen R.; Gårdmark, Anna; Larsson, Per; Persson, Lennart; Skov, Christian. (2015) What is the influence of a reduction of planktivorous and benthivorous fish on water quality in temperate eutrophic lakes? A systematic review. Environmental Evidence
Academic literature review
Wasof, Safaa; Lenoir, Jonathan; Aarrestad, Per Arild; Alsos, Inger Greve; Armbruster, W. Scott; Austrheim, Gunnar. (2015) Disjunct populations of European vascular plant species keep the same climatic niches. Global Ecology and Biogeography
Academic article
Bernes, Claes; Bråthen, Kari Anne; Forbes, Bruce C.; Speed, James David Mervyn; Moen, Jon. (2015) What are the impacts of reindeer/caribou (Rangifer tarandus L.) on arctic and alpine vegetation? A systematic review. Environmental Evidence
Academic literature review
Anderson, Helen; Hübner, Christiane E.; Speed, James David Mervyn; Madsen, Jesper; van der Wal, René. (2015) Biding time before breeding: flexible use of the Arctic landscape by migratory geese during spring. Polar Research
Academic article
Austrheim, Gunnar; Speed, James David Mervyn; Martinsen, Vegard; Mulder, Jan; Mysterud, Atle. (2014) Experimental effects of herbivore density on above-ground plant biomass in an alpine grassland ecosystem. Arctic, Antarctic and Alpine research
Academic article
Sjøgren, Per Johan E; Solem, Thyra Lise; Stenvik, Lars Fredrik; Tretvik, Aud Mikkelsen; Daverdin, Marc; Speed, James David Mervyn. (2014) Quantification of past plant abundances based on the R-value model: Exemplified by an impact assessment of pre-historic iron production and summer farming in Budalen, central Norway. The Holocene
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Meisingset, Erling L.; Mysterud, Atle; Tremblay, Jean-Pierre. (2014) General and specific responses of understory vegetation to cervid herbivory across a range of boreal forests. Oikos
Academic article
Speed, James David Mervyn; Martinsen, Vegard; Mysterud, Atle; Mulder, Jan; Holand, Øystein; Austrheim, Gunnar. (2014) Long-Term Increase in Aboveground Carbon Stocks Following Exclusion of Grazers and Forest Establishment in an Alpine Ecosystem. Ecosystems
Academic article
Miljeteig, Cecilie; Olsen, Anders Johny; Båtnes, Anna Solvang; Altin, Dag; Nordtug, Trond; Alver, Morten. (2014) Sex and life stage dependent phototactic response of the marine copepod Calanus finmarchicus (Copepoda: Calanoida). Journal of Experimental Marine Biology and Ecology
Academic article
Lenoir, Jonathan; Graae, Bente Jessen; Aarrestad, Per Arild; Alsos, Inger Greve; Armbruster, William Scott; Austrheim, Gunnar. (2013) Local temperatures inferred from plant communities suggest strong spatial buffering of climate warming across Northern Europe. Global Change Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Mysterud, Atle. (2013) The Response of Alpine Salix Shrubs to Long-Term Browsing Varies with Elevation and Herbivore Density. Arctic, Antarctic and Alpine research
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Birks, Harry John Betteley; Thompson, Des B.A.. (2013) Can we value landscapes by combining natural and cultural heritage?. Bulletin of the British Ecological Society
Article in business/trade/industry journal
Myking, Tor; Solberg, Erling Johan; Austrheim, Gunnar; Speed, James David Mervyn; Bøhler, Fredrik; Astrup, Rasmus Andreas. (2013) Browsing of sallow (Salix caprea L.) and rowan (Sorbus aucuparia L.) in the context of life history strategies: a literature review. European Journal of Forest Research
Academic literature review
Bernes, Claes; Bråthen, Kari Anne; Forbes, Bruce C.; Hofgaard, Annika; Moen, Jon; Speed, James David Mervyn. (2013) What are the impacts of reindeer/caribou (Rangifer tarandus L.) on arctic and alpine vegetation? A systematic review protocol. Environmental Evidence
Academic article
Pedersen, Åshild Ønvik; Speed, James David Mervyn; Tombre, Ingunn. (2013) Prevalence of pink-footed goose grubbing in the arctic tundra increases with population expansion. Polar Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Mysterud, Atle. (2013) The response of plant diversity to grazing varies along an elevational gradient. Journal of Ecology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Solberg, Erling Johan; Tremblay, Jean-Pierre. (2013) Regional-scale alteration of clear-cut forest regeneration caused by moose browsing. Forest Ecology and Management
Academic article
Speed, James David Mervyn; Meisingset, Erling L.; Austrheim, Gunnar; Hester, Alison J.; Mysterud, Atle; Tremblay, Jean-Pierre. (2013) Low intensities of red deer browsing constrain rowan growth in mature boreal forests of western Norway. Écoscience
Academic article
Solberg, Erling Johan; Speed, James David Mervyn; Meisingset, Erling; Daverdin, Marc; Mysterud, Atle; Austrheim, Gunnar. (2013) En skog uten hjortevilt. Gryende kunnskap fra uthegningsstudiene. Hjorteviltet
Popular scientific article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2012) Elevational advance of alpine plant communities is buffered by herbivory. Journal of Vegetation Science (JVS)
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Birks, Harry John Betteley; Johnson, Sally; Kvamme, Mons; Nagy, Laszlo. (2012) Natural and cultural heritage in mountain landscapes: towards an integrated valuation. International Journal of Biodiversity Science, Ecosystem Services & Management
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2011) Growth limitation of mountain birch caused by sheep browsing at the altitudinal treeline. Forest Ecology and Management
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2011) Browsing interacts with climate to determine tree-ring increment. Functional Ecology
Academic article
Speed, James David Mervyn; Woodin, Sarah J.; Tømmervik, Hans; van der Wal, Rene. (2010) Extrapolating herbivore-induced carbon loss across an arctic landscape. Polar Biology
Academic article
Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2010) Experimental evidence for herbivore limitation of the treeline. Ecology
Academic article
Speed, James D.M.; Cooper, Elisabeth; Jonsdottir, Ingibjørg; van der Wal, Rene; Woodin, Sarah J.. (2010) Plant community properties predict vegetation resilience to herbivore disturbance in the Arctic. Journal of Ecology
Academic article
Speed, James D.M.; Woodin, Sarah J.; Tømmervik, Hans; Tamstorf, Mikkel P.; van der Wal, Rene. (2009) Predicting habitat utilization and extent of ecosystem disturbance by an increasing herbivore population. Ecosystems
Academic article

Artistic productions

Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2020) planteR. https://shiny.vm.ntnu.no/users/speed/planteR/
Internet exhibition

Part of book/report

Pedersen, Åshild Ønvik; Ravolainen, Virve; Tombre, Ingunn; Anderson, Helen; van der Wal, René; Madsen, Jesper. (2015) Grubbers on the Svalbard tundra: Why do we need monitoring?.
Chapter

Report

Nybø, Signe; Kolstad, Anders Lorentzen; Sandvik, Hanno; Bakkestuen, Vegar; Evju, Marianne; Framstad, Erik. (2023) Indikatorer for økologisk tilstand i våtmark, semi-naturlig mark og naturlig åpne områder under skoggrensa . NINA rapport (2336)
Report
Nygaard, Malene; Bendiksby, Mika; Speed, James David Mervyn; Martin, Mike. (2022) Integrative biosystematics and conservation genomics – holistic studies of two red-listed plants in Norway. Doctoral theses at NTNU (68)
Doctoral dissertation
Jepsen, Jane Uhd; Speed, James David Mervyn; Austrheim, Gunnar; Rusch, Graciela; Petersen, Tanja Kofod; Asplund, Johan. (2022) Panel-based Assessment of Ecosystem Condition – a methodological pilot for four terrestrial ecosystems in Trøndelag. NINA rapport (2094)
Report
Petersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2021) Biodiversity dynamics in urban areas under changing land-uses. Norwegian University of Science and Technology
Doctoral dissertation
Vuorinen, Katariina Elsa Maria; Speed, James David Mervyn; Austrheim, Gunnar; Tremblay, Jean-Pierre; Hester, Alison J.. (2021) When do ungulates override the climate? Defining the interplay of two key drivers of northern vegetation dynamics . NTNU Open
Doctoral dissertation
van der Wal, René; Anderson, Helen B.; Stien, Audun; Loe, Leif Egil; Speed, James David Mervyn. (2020) Disturbance, recovery and tundra vegetation change. Report to Svalbard Environmental Protection Fund
Report
Frank, Peter; Speed, James David Mervyn; Vuorinen, Katariina. (2020) Herbivory Moderates the Positive Effect of Climate Warming on Shrub Growth in Northern Interior Alaska. NTNU
Masters thesis
Hortman, Hans Ivar; Speed, James David Mervyn; Vuorinen, Katariina. (2020) Herbivory and climate as drivers of shrub growth in the tundra of Northern Norway. NTNU
Masters thesis
Graae, Bente Jessen; Smith, Stuart W.; Speed, James David Mervyn; Marit Klemetsen, Arneberg. (2019) The impact of wild and domestic herbivores on aboveground productivity in an East-African savannah. NTNU
Masters thesis
Speed, James David Mervyn; Martin, Michael David; Ballesteros, Jesús A.. (2019) Patterns and relationships of the distribution of arctic and boreal forest herbivores: A three-dimensional approach. NTNU
Masters thesis
Haukenes, Vilde Lytskjold; Speed, James David Mervyn; Graae, Bente Jessen; Smith, Stuart. (2019) Carbon stocks across the Serengeti ecosystem: Impacts of climate, land management and woody plant cover. NTNU
Masters thesis
Snøen, Ingrid Bekken; Speed, James David Mervyn; Kolstad, Anders Lorentzen; Austrheim, Gunnar. (2019) Use of LiDAR Data in Assessing Effects of Moose Browsing on Boreal Forests. NTNU
Masters thesis
Graae, Bente Jessen; Smith, Stuart W.; Sundsdal, Anders; Speed, James David Mervyn. (2019) Teatime for termites: Understanding the impact of human land-use and climate on termite and microbial litter decomposition. NTNU
Masters thesis
Mienna, Ida Marielle; Martin, Michael David; Speed, James David Mervyn; Bendiksby, Mika. (2018) Patterns and drivers of phylogenetic diversity and endemism in the Norwegian vascular flora. NTNU
Masters thesis
Fandrem, Marte; Speed, James David Mervyn; Lyngstad, Anders. (2018) Typisk høgmyr som indikator i Naturindeks for Norge. NTNU Vitenskapsmuseet naturhistorisk rapport (5)
Report
Skjelbred, Ina Åsnes; Speed, James David Mervyn. (2017) Phylogenetic Diversity of Arctic Vertebrate Herbivores. NTNU
Masters thesis
Gebreyohanis, Winta; Speed, James David Mervyn. (2017) THE EFFECTS OF EXCLUSION OF BROWSING MOOSE ON ABOVE GROUND CARBON STOCKS IN EARLY SUCCESSIONAL STAGES IN BOREAL FORESTS. NTNU
Masters thesis
Austrheim, Gunnar; Endresen, Dag Terje Filip; Finstad, Anders Gravbrøt; Grytnes, John-Arvid; Koch, Wouter; Lindgaard, Arild. (2015) Sharing vegetation data: Outline of an infrastructure to secure scientific and technical standards that can facilitate data exchange. NTNU Vitenskapsmuseet naturhistorisk rapport (4)
Report
Wangen, Kristin; Hassel, Kristian; Speed, James David Mervyn. (2015) Understanding the Ecology of Three Mixed Northern Hepatic Mat Species at Regional Scale through Species Distribution Modelling, and Local Scale through Growth Measurements and Micro-Climatic Assessment. Norvegian University of Science and Technology
Masters thesis
Austrheim, Gunnar; Speed, James David Mervyn; Nes, Toril. (2015) The Effects of Moose (Alces alces)Browsing on Boreal Tree Species in Norway and Quebec. Norwegian University of Science and Technology
Masters thesis
Austrheim, Gunnar; Speed, James David Mervyn; Maurset, Marie Uhlen. (2015) Long-term Effects of Shifts in Grazing Pressure on Alpine Plant Species along an Elevational Gradient. Norwegian University of Science and Technology
Masters thesis
Speed, James David Mervyn; Anderson, Helen; Madsen, Jesper; Pedersen, Åshild Ønvik; Tombre, Ingunn; van der Wal, René. (2014) Effects of foraging by pink-footed geese on tundra vegetation in Svalbard: an assessment of extent and a proposal for a monitoring program. Aarhus Universitetsforlag Aarhus Universitetsforlag
Report
Speed, James David Mervyn; Anderson, Helen; Madsen, Jesper; Pedersen, Åshild Ø.; Tombre, Ingunn; van der Wal, René. (2014) Effects of foraging by pink-footed geese on tundra vegetation in Svalbard: an assessment of extent and a proposal for a monitoring program. Svalbard Environmental Protection Fund
Report
Solberg, Erling Johan; Myking, Tor; Austrheim, Gunnar; Bøhler, Fredrik; Eriksen, Rune; Speed, James David Mervyn. (2012) Rogn, osp og selje-Har de en framtid i norsk natur?. NINA rapport (806)
Report
Bernes, Claes; Forbes, Bruce C.; Hofgaard, Annika; Moen, Jon; Speed, James David Mervyn. (2012) What are the impacts of reindeer/caribou (Rangifer tarandus) on mountain and arctic vegetation? A systematic review protocol. Mistra Council for Evidnece-Based Environmental Management
Report

UTSTILLING

Trascau, Beatrice Maria; Herfindal, Ivar; Austrheim, Gunnar; Speed, James David Mervyn. (2024) "A Landscape of Change: How 20 years of land cover changes have shaped Norway's biodiversity". NTNU Kveld
Other presentation
Trascau, Beatrice Maria; Matten, Damaris M.; Krogstie, Hanne Bjørnås; Rieksta, Jolanta; Speed, James David Mervyn; Vange, Vibekke. (2023) Duftetur (Scented Tour). Ringve 50th Anniversary
Museum exhibition

PRODUKT

Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2020) planteR Artsutbredelsesmodellen planteR er en app som simulerer effekten av klimaendringer og beitetrykk på rødlista planter.
Digital learning tools

INFORMASJONSMATR

Speed, James David Mervyn. (2019) Mapping the puzzle of herbivore diversity across the Arctic: Functions and relationships matter.
Website (informational material)
Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2018) Tundraen blir varmere og plantene blir høyere .
Website (informational material)
Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2018) Tre tips til deg som vil drive med folkeforskning.
Website (informational material)

Teaching

Courses

BI3036 - Plant Ecology

Outreach

2025

Academic lecture

Westergaard, Kristine Bakke; Speed, James David Mervyn; Ulsted, Tor Henrik; Pertierra, Luis R.. (2025) Horizon scanning for alien species and their potential distribution in a warming Arctic. A panarctic and a Svalbard case study of vascular plant species. Fourth International Conference on Arctic Research Planning (ICARP IV) , Boulder, Colorado 2025-03-20 - 2025-03-28

2024

Academic lecture

Speed, James David Mervyn. (2024) Large herbivores, resilience and ecological dynamics in the changing north. Wageningen University Resilience of Polar Regions Symposium , Wageningen 2024-09-23 - 2024-09-23
Poster

García Castro, Federico; Trascau, Beatrice Maria; Speed, James David Mervyn. (2024) Functional Traits Of Epirrita autumnata(Autumn Moth) Across Space And Time: An Entomologic Collection-Based Study. Nordic Society Oikos Nordic Oikos 2024 , Lund 2024-03-12 - 2024-03-15
Poster

Trascau, Beatrice Maria; Herfindal, Ivar; Austrheim, Gunnar; Speed, James David Mervyn. (2024) Fade to Brown: Untangling the Impact of Land Cover Changes on Norway's Biodiversity. Nordic Society Oikos Nordic Oikos 2024 , Lund 2024-03-12 - 2024-03-15
Popular scientific lecture

Speed, James David Mervyn. (2024) Herbivores in the utmark: Biodiversity, ecosystems and management. DKNVS DKNVS akademimøte , Trondheim 2024-03-18 -
Academic lecture

Ulsted, Tor Henrik; Westergaard, Kristine Bakke; Speed, James David Mervyn. (2024) Climate change and potential door-knockers: An Arctic horizon scan. Nordic Oikos Society Nordic Oikos Society Meeting 2024 , Lund 2024-03-12 - 2024-03-15
Academic lecture

Speed, James David Mervyn. (2024) Drivers of vertebrate herbivore diversity across the Arctic tundra biome. University of Oslo CEES Seminar , Oslo 2024-06-05 -
Lecture

Khumalo, Wendy Hlengiwe; Kallevik, Matias; Svarva, Helene Løvstrand; Nadeau, Marie-Josée; Speed, James David Mervyn; Collet, Dominik. (2024) On the margins of agriculture - regional responses to 18th century crises in Norway. Dominik Collet - Universitetet i Oslo Nordic Climate History , Oslo 2024-05-23 - 2024-05-24

2023

Popular scientific lecture

Speed, James David Mervyn. (2023) How AI is changing natural history. NTNU NTNU AI DAY , NTNU Faculty of Information Technology 2023-12-08 - 2023-12-08
Poster

Speed, James David Mervyn; Pertierra, Luis R.; Westergaard, Kristine Bakke. (2023) Modelling the potential bioclimatic niche of non-native plants across the High-Arctic archipelago of Svalbard. Ecology and Management of Alien Plant Invasions EMAPI 2023 , Pucon 2023-10-23 - 2023-10-27
Academic lecture

Speed, James David Mervyn; Pertierra, Luis R.; Westergaard, Kristine Bakke. (2023) Potential area of occupancy of non-native plant species across the High-Arctic archipelago of Svalbard: Implications for management. Ecology and Management of Alien Plant Invasions EMAPI 2023 , Pucon 2023-10-23 - 2023-10-27
Lecture

Speed, James David Mervyn. (2023) Drivers of vertebrate trophic networks in the terrestrial Arctic. Pontificia Universidad Católica de Chile Biological Sciences Seminar , Santiago 2023-10-31 - 2023-10-31
Academic lecture

Salisbury, John; Hu, Xiangping; Speed, James David Mervyn; Iordan, Cristina Maria; Austrheim, Gunnar; Cherubini, Francesco. (2023) Disentangling the net climatic effects of moose browsing in early successional boreal forests. IBFRA IBFRA Conference Climate Resilient and Sustainable Forest Management , Helsinki 2023-08-28 - 2023-09-01
Academic lecture

Matten, Damaris Marina; Bendiksby, Mika; Martin, Michael David; Speed, James David Mervyn. (2023) Spatial patterns of species and phylogenetic diversity of vascular plants in Norway and Fennoscandia. Ecological Society of America 2023 ESA Annual Meeting , Portland, Oregon 2023-08-06 - 2023-08-11
Academic lecture

Speed, James David Mervyn. (2023) Herbivores and ecosystem dynamics in the changing north. University of Bristol School of Biological Sciences Seminar , Bristol 2023-10-04 - 2023-10-04
Interview

Rapagnà, Cristina; Speed, James David Mervyn; Prestø, Tommy. (2023) Un solo grado può cambiare una specie. Lega Nerd Lega Nerd [Internet] 2023-01-22
Interview

Sexton, Chrissy; Speed, James David Mervyn; Prestø, Tommy. (2023) Just one degree of warming can change a species. Earth.com Earth.com [Internet] 2023-01-22
Popular scientific lecture

Speed, James David Mervyn. (2023) Non-native plants in botanical gardens: Resources for new knowledge. Ringve Botanical Gardens Jubileumsseminar: Ringve botaniske hages 50-årsjubileum , Trondheim 2023-09-06 - 2023-09-07
Academic lecture

Speed, James David Mervyn. (2023) Drivers of vertebrate trophic networks in terrestrial Arctic ecosystems. ASSW Arctic Science Summit Week , Vienna 2023-02-17 - 2023-02-24
Academic lecture

Speed, James David Mervyn; Ivison, Katy; Dawson, Wayne. (2023) Horizon scanning of potential invasive plant species and their distribution in Norway under a changing climate. Norwegian Ecological Society OIKOS Norway 2023 , Ås 2023-02-13 - 2023-02-15
Poster

Engeseth, Kirsten; Dunshea, Glenn John; Speed, James David Mervyn. (2023) Estimating diet overlap of large alpine herbivores with metabarcoding. Norwegian Ecological Society OIKOS Norway 2023 , Ås 2023-02-13 - 2023-02-15
Interview

Brandslet, Steinar; Speed, James David Mervyn; Prestø, Tommy. (2023) Just one degree can change a species. Norwegian SciTech News Norwegian SciTech News [Internet] 2023-01-20
Academic lecture

Trascau, Beatrice Maria; Speed, James David Mervyn; Austrheim, Gunnar; Herfindal, Ivar. (2023) To use or not to use: Lessons from biodiversity responses to 20 years of land-use changes across Norway. Norwegian Ecological Society (OIKOS) Oikos Norway 2023 , NMBU, Ås 2023-02-13 - 2023-02-15

2022

Poster

Defourneaux, Mathilde; Barrio, Isabel C; Boulanger-Lapointe, Noémie; Speed, James David Mervyn. (2022) The effect of spatio-temporal variation of the herbivore assemblages on the Icelandic tundra. Nordic Ecological Society Nordic Oikos Conference , Aarhus 2022-06-07 - 2022-06-10
Academic lecture

Defourneaux, Mathilde; Barrio, Isabel C.; Boulanger-Lapointe, Noémie; Speed, James David Mervyn. (2022) Assessing the long-term changes in vertebrate herbivore communities and herbivory pressure on vegetation in Iceland over seven decades. Nordic Ecological Society Nordic Oikos Conference , Aarhus 2022-06-07 - 2022-06-10
Interview

Brandslet, Steinar; Speed, James David Mervyn; Prestø, Tommy. (2022) Selv én grad kan endre en art. Gemini Gemini [Journal] 2022-12-21
Poster

Guidetti, Roberto; Kaczmarek, Łukasz; Roszkowska, Milena; Meier, Terje; Prestø, Tommy; Jönsson, K. Ingemar. (2022) Diversity of tardigrade communities in Norwegian forests . Jagiellonian University of Krakow 15th International Symposium on Tardigrada , Krakow 2022-08-22 - 2022-08-26

2021

Academic lecture

Evankow, Ann; Bendiksby, Mika; Speed, James David Mervyn; Timdal, Einar. (2021) INTEGRATIVE TAXONOMY OF THE Psoraceae. International Association of Lichenology International Association for Lichenology 9th Symposium , Virtual 2021-07-31 - 2021-08-06
Interview

Herfindal, Ivar; Michelsen, Ottar; Setten, Gunhild; Speed, James David Mervyn; Sæther, Bernt-Erik. (2021) Hva er naturen verdt?. Gemini. Forskningsnytt fra NTNU og Sintef Gemini. Forskningsnytt fra NTNU og Sintef [Business/trade/industry journal] 2021-11-15
Academic lecture

Speed, James David Mervyn. (2021) Herbivores and ecosystem dynamics in the changing north. University of Aberdeen University of Aberdeen School of Biological Sciences Research Seminar Series 2021 2021-01-28 -

2020

Poster

Frank, Peter; Speed, James David Mervyn; Vuorinen, Katariina. (2020) THE EFFECTS OF CLIMATE AND HERBIVORY ON THE RADIAL GROWTH OF SHRUBS IN INTERIOR ALASKA. Nordic Ecological Society Nordic Ecological Society Conference , Reykjavik 2020-03-03 - 2020-03-05
Poster

Guindon, Rachel; Tremblay, Jean-Pierre; Speed, James David Mervyn. (2020) Introduction of muskox in Nunavik : Investigating potential effects on plant communities. Nordic Ecological Society Nordic Ecological Society Conference , Reykjavik 2020-03-03 - 2020-03-05
Academic lecture

Speed, James David Mervyn. (2020) Northern herbivore communities in time and space. Nordic Ecological Society Nordic Ecological Society Conference , Reykjavik 2020-03-03 - 2020-03-05
Poster

Maria Alejandra, Aguila Tomasini; Martin, Michael David; Speed, James David Mervyn. (2020) Assessing spatial patterns of phylogenetic diversity in Mexican mammals for biodiversity conservation. Nordic Ecological Society Nordic Ecological Society Conference , Reykjavik 2020-03-03 - 2020-03-05
Popular scientific lecture

Mienna, Ida Marielle; Speed, James David Mervyn; Klanderud, Kari; Bollandsås, Ole Martin; Austrheim, Gunnar. (2020) Drivers of treeline dynamics with varying herbivore densities. Nordic Society Oikos Nordic Oikos conference , Reykjavik 2020-03-01 - 2020-03-05
Poster

Hortman, Hans Ivar; Speed, James David Mervyn; Vuorinen, Katariina. (2020) Herbivory and climate as drivers of shrub growth in the tundra of Northern Norway. Nordic Ecological Society Nordic Ecological Society Conference , Reykjavik 2020-03-03 - 2020-03-05
Academic lecture

Guindon, Rachel; Tremblay, Jean-Pierre; Speed, James David Mervyn. (2020) Introduction of muskox in Nunavik, Northern Québec: Investigating potential effects on plant communities . Nordic Ecological Society Nordic Ecological Society Conference , Reykjavik 2020-03-03 - 2020-03-05
Poster

Matten, Damaris Marina; Bendiksby, Mika; Martin, Michael David; Speed, James David Mervyn. (2020) Phylogenetic diversity of Fennoscandian vascular plants: Do we protect the relevant areas?. ForBio - Research School in Biosystematics ForBio Annual meeting 2020 2020-12-03 - 2020-12-04
Poster

Matten, Damaris Marina; Bendiksby, Mika; Martin, Michael David; Speed, James David Mervyn. (2020) Phylogenetic diversity of Fennoscandian vascular plants: Do we protect the relevant areas?. British Ecological Society Festival of Ecoolgy 2020 2020-12-14 - 2020-12-18
Academic lecture

Austrheim, Gunnar; Speed, James David Mervyn; Bjørkhaug, Hilde; Kolstad, Anders Lorentzen; Martinsen, Vegard; Mulder, Jan. (2020) Managing livestock and wild herbivores for nature and climate in mountains. University of Zurich Research Priority Programme World Biodiversity Forum , Davos 2020-02-23 - 2020-02-28
Lecture

Petersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2020) Biodiversity dynamics in urban areas under changing land-use. British Ecological Society Festival of Ecology 2020-12-14 - 2020-12-18
Academic lecture

Speed, James David Mervyn. (2020) Passive rewilding: Replacement of livestock by wild herbivores across Norway. British Ecological Society Festival of Ecology 2020-12-13 - 2020-12-18
Academic lecture

Vuorinen, Katariina; Austrheim, Gunnar; Speed, James David Mervyn. (2020) Does sheep interact with climate to shape alpine plant community traits?. British Ecological Society Festival of Ecology , Online 2020-12-14 - 2020-12-18

2019

Poster

Snøan, Ingrid Bekken; Austrheim, Gunnar; Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2019) Use of LIDAR data to assess impacts of moose browsing on boreal forests. Norwegian Ecological Society Norwegian Ecological Society , Tromsø 2019-02-11 - 2019-02-13
Poster

Ballesteros, Jesús A.; Speed, James David Mervyn; Martin, Michael David. (2019) Arctic and boreal herbivore biodiversity: What drives it and where is it?. Norwegian Ecological Society Norwegian Ecological Society , Tromsø 2019-02-11 - 2019-02-13
Poster

Haukenes, Vilde Lytskjold; Speed, James David Mervyn; Graae, Bente Jessen; Smith, Stuart; Martinsen, Vegard; Lyamuya, Richard Daniel. (2019) Carbon storage across the Serengeti ecosystem: Impacts of climate, land-use and woody plant cover. Norwegian Ecological Society Norwegian Ecological Society , Tromsø 2019-02-11 - 2019-02-13
Lecture

Kolstad, Anders Lorentzen; Austrheim, Gunnar; Mulder, Jan; Martinsen, Vegard; Speed, James David Mervyn; Solberg, Erling Johan. (2019) Regulering av husdyr og hjortevilt for klimagunstig arealbruk i Norge. Norges forskningråd Fagseminar om økosystemer på land og deres betydning for klima , Lysaker, Oslo 2019-02-05 - 2019-02-05
Poster

Petersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2019) Land cover determines threatened and alien species richness in a mixed urban-natural municipality. University of Aarhus, University of Copenhagen Biodiversitetssymposiet 2019 , University of Aarhus 2019-01-22 - 2019-01-23
Lecture

Graae, Bente Jessen; Haukenes, Vilde Lytskjold; Sørensen, Mia Vedel; Strimbeck, Richard; Martinsen, Vegard; Smith, Stuart. (2019) Karbonfluks og karbonlagre i norsk fjelljord og afrikansk savannejord. Norges forskningsråd Fagseminar om økosystemer på land og deres betydning for klima , Lysaker, Oslo 2019-02-05 -
Interview

Speed, James David Mervyn. (2019) Herbivory in the Arctic. Yamal TV, Russia Yamal TV, Russia [TV] 2019-09-18
Academic lecture

Meleshko, Olena; Stenøien, Hans K.; Speed, James David Mervyn; Flatberg, Kjell Ivar; Kyrkjeeide, Magni Olsen; Hassel, Kristian. (2019) Is interspecific gene flow in peatmosses (Sphagnum) constrained by phylogenetic relatedness and life-history traits? . ForBio ForBio Annual Meeting 2018 , Tromsø 2019-02-12 - 2019-02-14

2018

Academic lecture

Austrheim, Gunnar; Speed, James David Mervyn; Kolstad, Anders Lorentzen; Solberg, Erling Johan. (2018) Föryngring och bete på rönn Erfaringer fra Norge . CFW (Centrum för vilt- och fiskforskning) Sveriges Landbruks Seminariet ”Betet, lövträden och den nya älgförvaltningen” , Uppsala 2018-11-20 - 2018-11-20
Lecture

Speed, James David Mervyn. (2018) Ecological impacts of large herbivores: From the individual to the biome. Aarhus University Department of Bioscience Seminar , Aarhus 2018-01-31 - 2018-08-31
Academic lecture

Speed, James David Mervyn. (2018) Biome-scale analysis of functional and phylogenetic diversity highlights environmental constraints acting on Arctic vertebrate herbivore assemblages. Canadian Society of Ecology and Evolution Canadian Society of Ecology and Evolution , Guelph 2018-07-19 - 2018-07-21
Poster

Vuorinen, Katariina; Hester, Alison J.; Tremblay, Jean-Pierre; Austrheim, Gunnar; Speed, James David Mervyn. (2018) Disentangling the effects of vertebrate herbivory and climate on woody plant growth in northern ecosystems. Nordic OIKOS conference , Trondheim 2018-02-20 -
Lecture

Vuorinen, Katariina; Rao, Shaila; Hester, Alison J.; Speed, James David Mervyn. (2018) Climate and herbivory as drivers of tree and shrub growth in the Scottish highlands. Canadian Society for Ecology and Evolution Canadian Society for Ecology and Evolution Meeting , Guelph 2018-07-21 -
Academic lecture

Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; Speed, James David Mervyn. (2018) Using networks to analyse the functional role of large herbivores. Oikos Oikos 2018 , Trondheim 2018-02-20 - 2018-02-22
Poster

Petersen, Tanja Kofod; Austrheim, Gunnar; Speed, James David Mervyn; Grøtan, Vidar. (2018) Urban Biodiversity - a redlisted refuge or blacklisted gateway. Nordic OIKOS OIKOS 2018 , Claridon Hotel and Congress Center 2018-02-19 - 2018-02-22
Poster

Mienna, Ida Marielle; Speed, James David Mervyn; Martin, Michael David; Bendiksby, Mika; Thornhill, Andrew H; Mishler, Brent D. (2018) Patterns and drivers of vascular plant phylogenetic diversity and endemism across Norway. Oikos 2018 , Trondheim 2018-02-20 - 2018-02-22
Academic lecture

Mienna, Ida Marielle; Speed, James David Mervyn; Martin, Michael David; Bendiksby, Mika; Thornhill, Andrew H; Mishler, Brent D. (2018) The Spatial Distribution Of Phylogenetic Diversity And Endemism In The Norwegian Vascular Flora. ForBio annual meeting 2018 , Tromsø 2018-02-12 - 2018-02-14
Poster

Smith, Stuart; Bukombe, John; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob; Hassan, Shombe Ntaraluka; Speed, James David Mervyn. (2018) Wildlife and livestock impacts on plant biomass in and outside the Serengeti National Park, Tanzania. Nordic Society Oikos OIKOS 2018 , Trondheim 2018-02-18 - 2018-02-22
Academic lecture

Smith, Stuart; Bukombe, John; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob; Hassan, Shombe Ntaraluka; Speed, James David Mervyn. (2018) Wildlife versus livestock driven seasonal biomass dynamics inside and outside the Serengeti National Park, Tanzania. Society of Conservation Biology 5th European Congress of Conservation Biology , Jyväskylä 2018-06-11 - 2018-06-15
Academic lecture

Sundsdal, Anders; Graae, Bente Jessen; Speed, James David Mervyn; Bukombe, John; Mtweve, Philipo Jacob; Hassan, Shombe Ntaraluka. (2018) Termites, teabags and tropical savannahs. Natural Resources Institute Finland International Conference on Ecology of Soil Microorganisms 2018 and 3rd annual TeaBag Index (TBI) symposium , Helsinki 2018-06-17 - 2018-06-21

2017

Poster

Austrheim, Gunnar; Berger, Victoria; Daverdin, Marc; Gebreyohanis, Winta Berhie; Kolstad, Anders Lorentzen; Speed, James David Mervyn. (2017) SustHerb - towards sustainable herbivore management. Norsk Økologisk Forening Norsk Økologisk Forening konferanse 2017 , Oslo 2017-01-12 - 2017-01-13
Poster

Speed, James David Mervyn; Soininen, Eeva M; Skjelbred, Ina Åsnes; Martin, Michael David; Barrio, Isabel C. (2017) Phylogenetic and functional composition of Arctic herbivore assemblages. SLU 3rd Symposium on Ecological Networks and 3rd Symposium on Molecular Analysis , Uppsala 2017-09-11 - 2017-09-15
Poster

Skjelbred, Ina Å; Thornhill, Andrew H; Martin, Michael David; Speed, James David Mervyn. (2017) Phylogenetic diversity of Arctic vertebrate herbivores. UiO Centre for Ecological and Evolutionary Synthesis 3rd Conference of the Norwegian Ecological Society , Oslo 2017-01-12 - 2017-01-13
Poster

Mienna, Ida M; Thornhill, Andrew H; Mishler, Brent D; Bendiksby, Mika; Speed, James David Mervyn; Martin, Michael David. (2017) Spatial phylogenetics of the Norwegian vascular plant flora. UiO Centre for Ecological and Evolutionary Synthesis 3rd Conference of the Norwegian Ecological Society , Oslo 2017-01-12 - 2017-01-13
Poster

Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; Venete, Aurel M A; Woodin, Sarah J.; Speed, James David Mervyn. (2017) Impacts of moose on boreal forest vegetation and ecosystem properties. British ecological society Ecology across borders , Ghent 2017-12-13 - 2017-12-13
Lecture

Fandrem, Marte; Lyngstad, Anders; Speed, James David Mervyn. (2017) Raised bogs in Norway much rarer than expected - new insights from remote sensing surveys. International Mire Conservation Group International Field Symposium Mire ecosystems of Northeast Europe , Syktyvkar, Russia 2017-07-22 - 2017-08-04
Academic lecture

Awuah, Joana; Smith, Stuart W; Speed, James David Mervyn; Graae, Bente Jessen. (2017) How does burning affect carbon pools in savanna ecosystems?. Tanzania Wildlife Research Institute 11th TAWIRI conference – December 4-6 2017 , Arusha 2017-12-04 - 2017-12-06
Academic lecture

Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; Venete, Aurel M A; Woodin, Sarah J.; Speed, James David Mervyn. (2017) How does chronic moose browsing affect forest and soil properties? . NTNU Sustainability NTNU Sustainability Science Conference , Trondheim 2017-10-20 -

2016

Academic lecture

Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Martinsen, Vegard; Mulder, Jan; Mysterud, Atle. (2016) Ecological responses to sheep grazing in Norwegian mountains: Insight from long-term experimental approaches. Norden Grazing in a changing Nordic region , Reykjavik 2016-09-12 - 2016-09-15
Academic lecture

Mulder, Jan; Martinsen, Vegard; Speed, James David Mervyn; Mysterud, Atle; Austrheim, Gunnar. (2016) Grazing & treeline advance in alpine zones: Effects on ecosystem carbon stocks. Beijing Normal University Invited lecture , Beijing 2016-10-19 - 2016-10-19
Academic lecture

Mulder, Jan; Martinsen, Vegard; Speed, James David Mervyn; Mysterud, Atle; Austrheim, Gunnar. (2016) Treeline advance in alpine zones: Effects on ecosystem carbon stocks. Jap. Ag. Marine-Earth Sci. Tech., NFR, SIU, Norw. Embassy Japan - Norway Arctic Science and Innivation Week 2016 , Tokyo 2016-06-02 -
Academic lecture

Martinsen, Vegard; Mulder, Jan; Speed, James David Mervyn; Mysterud, Atle; Austrheim, Gunnar. (2016) Grazing & treeline advance in alpine zones: Effects on ecosystem carbon stocks. Jordforeningen Seminar: "Soil in a changing world" , Ås 2016-12-05 - 2016-12-05
Academic lecture

Martinsen, Vegard; Mulder, Jan; Speed, James David Mervyn; Mysterud, Atle; Austrheim, Gunnar. (2016) Results of long-term grazing Experiments in Norway - focus on C & N. CAAS and Inner Mongolia University Prosjektetablering og informasjonsmøter i Kina , Beijing and Ho Hot 2016-04-13 - 2016-04-15
Academic lecture

Ross, Louise C.; Speed, James David Mervyn; Øien, Dag Inge; Hassel, Kristian; Lyngstad, Anders; Grygoruk, Mateusz. (2016) Patterns and determinants of long-term change in boreal fen vegetation. Society of Ecological Restoration, Europe Best practice in restoration - The 10th European conferance on ecological restoration , Freising 2016-08-22 - 2016-08-26

2015

Academic lecture

Speed, James David Mervyn; Martinsen, Vegard; Hester, Alison J.; Holand, Øystein; Mulder, Jan; Mysterud, Atle. (2015) Carbon storage across the alpine treeline ecotone: Thresholds and impacts of climatic and land-use change. Mountains of Our Future Earth , Perth 2015-10-04 - 2015-10-08
Academic lecture

Angers-Blondin, Sandra; Myers-Smith, Isla; Boudreau, Stephanie; Forbes, Bruce C.; Macias-Fauria, Marc; Boulanger-Lapointe, Noémie. (2015) The influence of plant size on the climate sensitivity of tundra shrubs. Mountains of Our Future Earth , Perth 2015-10-04 - 2015-10-08
Academic lecture

Hester, Alison J.; Hermanutz, Luise; Brown, Carissa D.; Speed, James David Mervyn; Tremblay, Jean-Pierre; Cairns, David. (2015) Consuming the change - How important is herbivory to global treeline ecotone change?. Mountains of Our Future Earth , Perth 2015-10-04 - 2015-10-08
Academic lecture

Austrheim, Gunnar; Speed, James David Mervyn; Evju, Marianne; Hester, Alison J.; Holand, Øystein; Loe, Leif Egil. (2015) Effects of sheep grazing on biodiversity and ecosystem services in a mountain environment: An experimental approach. Mountains of Our Future Earth , Perth 2015-10-04 - 2015-10-08
Academic lecture

Maurset, Marie Uhlen; Austrheim, Gunnar; Speed, James David Mervyn. (2015) Long term effects of shifts in grazing pressure on alpine herbs vary along an elevational gradient. Norwegian Ecological Society , Bergen 2015-03-12 - 2015-03-13
Poster

Wangen, Kristin; Hassel, Kristian; Speed, James David Mervyn. (2015) Species distribution modeling of three mixed northern hepatic mat liverworts. Norwegian Ecological Society 2015-03-12 - 2015-03-13
Poster

Nes, Toril; Austrheim, Gunnar; Speed, James David Mervyn. (2015) The effects of moose (Alces alces) browsing on boreal tree species in Norway and Quebec. Norwegian Ecological Society , Bergen 2015-03-12 - 2015-03-13
Poster

Barrio, Isabel; Bueno, Guillermo; Gartzia, Maite; Soininen, Eeva M; Christie, Katie; Speed, James David Mervyn. (2015) Biotic interactions mediate patterns of herbivore diversity in the Arctic. Arctic Net Arctic Net Annual Scientific Meeting 2015 , Vancouver 2015-12-07 - 2015-12-11

2014

Lecture

Martinsen, Vegard; Mulder, Jan; Speed, James David Mervyn; Mysterud, Atle; Austrheim, Gunnar. (2014) Grazing in mountain grasslands; results of long-term experiments in Norway. Intitute of Envir. and Sustainable Dev. in Agric. CAAS Fagmøte og prosjektplanlegging CAAS , Beijing 2014-06-19 - 2014-06-19
Poster

Martinsen, Vegard; Mulder, Jan; Speed, James David Mervyn; Mysterud, Atle; Austrheim, Gunnar. (2014) Grazing in mountain ecosystems: Results of long-term experiments in Norway. 20th world congress of soil science , ICC Jeju 2014-06-08 - 2014-06-13
Interview

Speed, James David Mervyn. (2014) Beitende husdyr minsker karbonlagrene. Gemini Gemini [Journal] 2014-08-01
Academic lecture

Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison J.; Holand, Øystein; Mysterud, Atle. (2014) The impact of herbivory within the treeline ecotone. Ecological Society of America Annual Meeting , Sacramento 2014-08-10 - 2014-08-15

2013

Academic lecture

Speed, James David Mervyn. (2013) Grazing buffers vegetation change in the mountains of Norway. Norwegian Ecological Society Norwegian Ecological Society 1st Conference , Trondheim 2013-03-14 - 2013-03-15

2011

Academic lecture

Sjögren, Per; Solem, Thyra Lise; Speed, James David Mervyn; Daverdin, Marc; Stenvik, Lars Fredrik; Austrheim, Gunnar. (2011) Modelling vegetation history. NTNU DYLAN conference , Trondheim 2011-09-21 - 2011-09-25
Interview

Speed, James David Mervyn. (2011) Ovelhas alteram registro de anéis das árvores. iG iG [Internet] 2011-07-28
Interview

Speed, James David Mervyn. (2011) Växtätare kan påverka träd mer är klimatet. SverigesRadio SverigesRadio [Internet] 2011-07-28
Interview

Speed, James David Mervyn. (2011) Good Morning Scotland. BBC Radio Scotland BBC Radio Scotland [Radio] 2011-07-27
Interview

Speed, James David Mervyn. (2011) Knagende schapen beïnvloeden jaarringen. KIJK KIJK [Newspaper] 2011-07-27
Interview

Speed, James David Mervyn. (2011) Seeing the Wood for the Trees: New Study Shows Sheep in Tree-Ring Records. Science Daily Science Daily [Internet] 2011-07-26
Poster

Stone, Duncan; Hansen, Suzanne; Speed, James David Mervyn. (2011) Woody time machines in Norway and Scotland: Using trees to analyse the past and predict the future. DYLAN Conference 2011-09-21 - 2011-09-23
Interview

Speed, James David Mervyn. (2011) Nibblers Affect Climate Tales That Tree Rings Tell. The New York Times The New York Times [Newspaper] 2011-07-29
Academic lecture

Speed, James David Mervyn; Austrheim, Gunnar; Birks, Harry John Betteley; Johnson, Sally; Kvamme, Mons; Nagy, Laszlo. (2011) Towards an integrated valuation of mountain landscapes. DYLAN Conference , Trondheim 2011-09-21 - 2011-09-23

2010

Documentary

Speed, James David Mervyn. (2010) Sau bevarer mangfoldet. forskning.no forskning.no [Internet] 2010-12-21
Academic lecture

Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2010) Experimental evidence for herbivore limitation of treeline altitude. British Ecological Society British Ecological Society Annual Meeting , Leeds 2010-09-07 - 2010-09-09
Poster

Speed, James David Mervyn; Austrheim, Gunnar; Hester, Alison; Mysterud, Atle. (2010) Cessation of livestock grazing leads to loss of alpine ecosystems. Centre for Conservation Biology, NTNU Sustainable Conservation , Trondheim 2010-03-15 - 2010-10-18

2009

Academic lecture

Speed, James David Mervyn. (2009) Herbivory and treeline dynamics. Comparing plant-herbivore interactions in northern and temperate ecosystems , LECA Chambery 2009-10-27 - 2009-10-31

Språkvelger

James D. M. Speed

James D. M. Speed

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A regionally coherent ecological fingerprint of climate change, evidenced from natural history collections.

Airborne laser scanning reveals uniform responses of forest structure to moose (Alces alces) across the boreal forest biome

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