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Steinar Engen

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Steinar Engen

Professor
NV Faculty Administration

steinar.engen@ntnu.no
+4790635053 Realfagbygget, Gløshaugen, Høgskoleringen 5
About Publications Outreach

About

Steinar Engen (1946) is a Professor at the Department of Mathematical Sciences, statistics group, and works for the department of biology. Professor Engen has an MSc in Physics with diploma in Statistics from NTNU and a D.Phil. degree  from the Department of Biomathematics, University of Oxford.

Work Experience

  • 1990- Full Professor in Biostatistics, AVH/NTNU, Department of Math. and Stat.
  • 1988- Advisor, 20% position at The Norwegian Institute for Nature Research, (NINA)
  • 1978-1990 Associate Professor, Norges Lærerhøgskole, University of Trondheim
  • 1977 Assistant Professor, NTNU, Mathematical Institute
  • 1975-1977 Scholarship, University of Trondheim
  • 1971-1975 Scholarship, NAVF and the Royal Society in England

Honors and awards

  • 2015 Recipient of the Wildlife Society Publication Award – Outstanding Article for Evolutionary Consequences of nonselective harvesting in density-dependent populations by Steinar Engen, Russell Lande and Bernt-Erik Sæther. American Naturalist 184(6):714-726, 2014
  • 2013 The Norwegian Research Council Award for outstanding research (Møbius Prize) together with Professor Bernt-Erik Sæther
  • 2005 The Norwegian Academy of Science, elected member
  • 2003 Royal Norwegian Society of Science and Letters, elected member
  • 2002 International Statistical Institute, member

Research Experience from Foreign Institutions

  • 2001-2013 Frequent visits of 1-2 weeks at Eugene, Oregon, University of California, San Diego, University of Oxford and Imperial College, London and Silwood Park2001 4 weeks. Centre of Biodiversity Studies, Natural Museum, Milwaukee
  • 2000 3 weeks. University of California, San Diego, Biological Institute
  • 1998 2 weeks. University of California, San Diego, Biological Institute
  • 1995 4 weeks. University of Oregon, Biological Institute
  • 1993 4 months. University of Oregon, Biological Institute
  • 1978 3 weeks. Penn State University, Statistical Institute
  • 1972-75 Oxford, Department of Biomathematics

Scientific production and citations

173 papers in international journals, Web of science: h-index  39 (including two books), more than 4800 citations (including two books and some book chapters). Google scholar: More than 6500 sitations, h-index 46. (august 2015)

Teaching Experience

Professor Engen has supervised 12 cand.scient. students, 3 dr.scient. students in Statistics, and 6 dr.scient. in Biology. He has supervised 9 candidates with completed doctoral degree.

Publications

  • Chronological
  • By category
  • All publications registered in NVA

2025

  • Vriend, Stefan J.G.; Engen, Steinar; Gustafsson, Lars; Sæther, Bernt-Erik; Grøtan, Vidar. (2025) Quantitative analyses of stochastic influences on the response to phenotypic selection in a small passerine, the collared flycatcher. Evolution
    Academic article

2024

  • Engen, Steinar; Sæther, Bernt-Erik. (2024) Evolutionary and Ecological Processes Determining the Properties of the G Matrix. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Solbu, Erik Blystad. (2024) Assessing the sensitivity and resistance of communities in a changing environment. Journal of Animal Ecology
    Academic article

2023

  • Lande, Russell Scott; Grøtan, Vidar; Engen, Steinar; Visser, M.E.; Sæther, Bernt-Erik. (2023) Estimating Density Dependence, Environmental Variance, and Long-Term Selection on a Stage-Structured Life History. The American Naturalist
    Academic article

2022

  • Bellier, Edwige; Engen, Steinar; Jensen, Thomas Correll. (2022) Seasonal diversity dynamics of a boreal zooplankton community under climate impact. Oecologia
    Academic article
  • Lee, Aline Magdalena; Jarillo, Javier; Peeters, Bart; Hansen, Brage Bremset; Cao-Garcia, Francisco; Sæther, Bernt-Erik. (2022) Population responses to harvesting in fluctuating environments. Climate Research (CR)
    Academic article
  • Kvalnes, Thomas; Sæther, Bernt-Erik; Engen, Steinar; Roulin, Alexandre. (2022) Density-dependent selection and the maintenance of colour polymorphism in barn owls. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Peeters, Bart; Grøtan, Vidar; Gamelon, Marlène; Veiberg, Vebjørn; Lee, Aline Magdalena; Fryxell, John M.. (2022) Harvesting can stabilise population fluctuations and buffer the impacts of extreme climatic events. Ecology Letters
    Academic article

2021

  • Engen, Steinar; Sæther, Bernt-Erik. (2021) Structure of the G-matrix in relation to phenotypic contributions to fitness. Theoretical Population Biology
    Academic article
  • Bellier, Edwige; Sæther, Bernt-Erik; Engen, Steinar. (2021) Sustainable strategies for harvesting predators and prey in a fluctuating environment. Ecological Modelling
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2021) Reproductive value and analyses of population dynamics of age-structured populations.
    Academic chapter/article/Conference paper
  • Engen, Steinar; Tian, Huaiyu; Yang, Ruifu; Bjørnstad, Ottar Nordal; Whittington, Jason; Stenseth, Nils Christian. (2021) The ecological dynamics of the coronavirus epidemics during transmission from outside sources when R0 is successfully managed below one. Royal Society Open Science
    Academic article
  • Marquez, Jonatan; Sæther, Bernt-Erik; Aanes, Sondre; Engen, Steinar; Salthaug, Are; Lee, Aline Magdalena. (2021) Age-dependent patterns of spatial autocorrelation in fish populations. Ecology
    Academic article
  • Engen, Steinar; Grøtan, Vidar; Sæther, Bernt-Erik; Coste, Christophe. (2021) An evolutionary and ecological community model for distribution of phenotypes and abundances among competing species. The American Naturalist
    Academic article

2020

  • Jarillo, Javier; Sæther, Bernt-Erik; Engen, Steinar; Cao-garcia, Francisco Javier. (2020) Spatial scales of population synchrony in predator-prey systems. The American Naturalist
    Academic article
  • Engen, Steinar; Wright, Jonathan; Araya-Ajoy, Yimen; Sæther, Bernt-Erik. (2020) Phenotypic evolution in stochastic environments: The contribution of frequency- and density-dependent selection. Evolution
    Academic article
  • Lee, Aline Magdalena; Myhre, Ane Marlene; Markussen, Stine Svalheim; Engen, Steinar; Solberg, Erling Johan; Haanes, Hallvard. (2020) Decomposing demographic contributions to the effective population size with moose as a case study. Molecular Ecology
    Academic article
  • Wright, Jonathan; Solbu, Erik Blystad; Engen, Steinar. (2020) Contrasting patterns of density-dependent selection at different life stages can create more than one fast–slow axis of life-history variation. Ecology and Evolution
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Gustafsson, Lars; Grøtan, Vidar; Vriend, Stefan. (2020) Density-Dependent Adaptive Topography in a Small Passerine Bird, the Collared Flycatcher. The American Naturalist
    Academic article
  • Lee, Aline Magdalena; Sæther, Bernt-Erik; Engen, Steinar. (2020) Spatial covariation of competing species in a fluctuating environment. Ecology
    Academic article
  • Moorter, Bram Van; Engen, Steinar; Fryxell, John M.; Panzacchi, Manuela; Nilsen, Erlend Birkeland; Mysterud, Atle. (2020) Consequences of barriers and changing seasonality on population dynamics and harvest of migratory ungulates. Theoretical Ecology
    Academic article

2019

  • Engen, Steinar; Sæther, Bernt-Erik. (2019) Ecological dynamics and large scale phenotypic differentiation in density-dependent populations. Theoretical Population Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2019) Towards a predictive conservation biology: the devil is in the behaviour. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic literature review
  • Gamelon, Marlène; Vriend, Stefan; Engen, Steinar; Adriaensen, Frank; Dhondt, A.A.; Evans, Simon R.. (2019) Accounting for interspecific competition and age structure in demographic analyses of density dependence improves predictions of fluctuations in population size. Ecology Letters
    Academic article
  • Marquez, Jonatan Fredricson; Lee, Aline Magdalena; Aanes, Sondre; Engen, Steinar; Herfindal, Ivar; Salthaug, Are. (2019) Spatial scaling of population synchrony in marine fish depends on their life history. Ecology Letters
    Academic article

2018

  • Engen, Steinar; Cao, Francisco J.; Sæther, Bernt-Erik. (2018) The effect of harvesting on the spatial synchrony of population fluctuations. Theoretical Population Biology
    Academic article
  • jarillo, javier diaz; Sæther, Bernt-Erik; Engen, Steinar; cao, francisco javier. (2018) Spatial scales of population synchrony of two competing species: effects of harvesting and strength of competition. Oikos
    Academic article
  • Engen, Steinar; Lee, Aline Magdalena; Sæther, Bernt-Erik. (2018) Spatial distribution and optimal harvesting of an age-structured population in a fluctuating environment. Mathematical Biosciences
    Academic article
  • Solbu, Erik Blystad; Diserud, Ola Håvard; Kålås, John Atle; Engen, Steinar. (2018) Heterogeneity among species and community dynamics – Norwegian bird communities as a case study. Ecological Modelling
    Academic article

2017

  • Ovaskainen, Otso; Tikhonov, Gleb; Dunson, David; Grøtan, Vidar; Engen, Steinar; Sæther, Bernt-Erik. (2017) How are species interactions structured in species-rich communities? A new method for analysing time-series data. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2017) Evolution of stochastic demography with life history tradeoffs in density-dependent age-structured populations. Proceedings of the National Academy of Sciences of the United States of America (PNAS)
    Academic article
  • Kvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Hagen, Ingerid Julie; Rønning, Bernt; Pärn, Henrik. (2017) Reversal of response to artificial selection on body size in a wild passerine bird. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2017) r- and K-selection in fluctuating populations is determined by the evolutionary trade-off between two fitness measures: Growth rate and lifetime reproductive success. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2017) Extinction risk and lack of evolutionary rescue under resource depletion or area reduction. The American Naturalist
    Academic article
  • Lee, Aline Magdalena; Sæther, Bernt-Erik; Markussen, Stine Svalheim; Engen, Steinar. (2017) Modelling time to population extinction when individual reproduction is autocorrelated. Ecology Letters
    Academic article
  • Engen, Steinar. (2017) Spatial synchrony and harvesting in fluctuating populations:Relaxing the small noise assumption. Theoretical Population Biology
    Academic article
  • Gamelon, Marlène; Grøtan, Vidar; Nilsson, Anna L. K.; Engen, Steinar; Hurrell, James W.; Jerstad, Kurt. (2017) Interactions between demography and environmental effects are important determinants of population dynamics. Science Advances
    Academic article
  • Vindenes, Yngvild; Engen, Steinar. (2017) Demographic stochasticity and temporal autocorrelation in the dynamics of structured populations. Oikos
    Academic article
  • Myhre, Ane Marlene; Engen, Steinar; Sæther, Bernt-Erik. (2017) Effective size in density‐dependent two‐sex populations: the effect of mating systems. Journal of Evolutionary Biology
    Academic article

2016

  • Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Coulson, Tim; Grant, Peter R.; Visser, Marcel E.. (2016) Demographic routes to variability and regulation in bird populations. Nature Communications
    Academic article
  • Bjørkvoll, Eirin Marie; Lee, Aline Magdalena; Grøtan, Vidar; Sæther, Bernt-Erik; Stien, Audun; Engen, Steinar. (2016) Demographic buffering of life histories? Implications of the choice of measurement scale. Ecology
    Academic article
  • Engen, Steinar; Solbu, Erik Blystad; Sæther, Bernt-Erik. (2016) Neutral or non-neutral communities: temporal dynamics provide the answer. Oikos
    Academic article
  • Gamelon, Marlène; Grøtan, Vidar; Engen, Steinar; Bjørkvoll, Eirin Marie; Visser, Marcel E.; Sæther, Bernt-Erik. (2016) Density dependence in an age-structured population of great tits: identifying the critical age classes. Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2016) Optimal age of maturity in fluctuating environments under r- and K-selection. Oikos
    Academic article
  • Kvalnes, Thomas; Sæther, Bernt-Erik; Haanes, Hallvard; Røed, Knut; Engen, Steinar; Solberg, Erling Johan. (2016) Harvest-induced phenotypic selection in an island population of moose, Alces alces. Evolution
    Academic article
  • Myhre, Ane Marlene; Engen, Steinar; Sæther, Bernt-Erik. (2016) Effective size of density-dependent populations in fluctuating environments. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2016) Spatial synchrony in population dynamics: The effects of demographic stochasticity and density regulation with a spatial scale. Mathematical Biosciences
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2016) Phenotypic evolution by distance in fluctuating environments: The contribution of dispersal, selection and random genetic drift. Theoretical Population Biology
    Academic article
  • Sæther, Bernt-Erik; Visser, Marcel E; Grøtan, Vidar; Engen, Steinar. (2016) Evidence for r-and K-selection in a wild bird population: A reciprocal link between ecology and evolution. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard. (2016) Characteristics of temporal changes in communities where dynamics differ between species. Theoretical Population Biology
    Academic article

2015

  • Sæther, Bernt-Erik; Engen, Steinar. (2015) The concept of fitness in fluctuating environments. Trends in Ecology & Evolution
    Academic literature review
  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard; Sæther, Bernt-Erik. (2015) Modelling and statistical analysis of demographic and environmental changes in populations and communities. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Doctoral dissertation
  • Lee, Aline Magdalena; Bjørkvoll, Eirin Marie; Hansen, Brage Bremset; Albon, Steve D.; Stien, Audun; Sæther, Bernt-Erik. (2015) An integrated population model for a long-lived ungulate: more efficient data use with Bayesian methods. Oikos
    Academic article
  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard. (2015) Guidelines when estimating temporal changes in density dependent populations. Ecological Modelling
    Academic article

2014

  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2014) Evolutionary consequences of nonselective harvesting in density-dependent populations. The American Naturalist
    Academic article
  • Bellier, Edwige Louise; Grøtan, Vidar; Engen, Steinar; Schartau, Ann Kristin; Herfindal, Ivar; Finstad, Anders Gravbrøt. (2014) Distance decay of similarity, effects of environmental noise and ecological heterogeneity among species in the spatio-temporal dynamics of a dispersal-limited community. Ecography
    Academic article
  • Bartzke, Gundula; May, Roelof Frans; Stokke, Sigbjørn; Røskaft, Eivin; Engen, Steinar. (2014) Comparative effects of power lines and roads on moose (Alces alces) habitat selection.
    Chapter
  • Engen, Steinar; Sæther, Bernt-Erik. (2014) Evolution in fluctuating environments: Decomposing selection into additive components of the robertson-price equation. Evolution
    Academic article
  • Engen, Steinar; Kvalnes, Thomas; Sæther, Bernt-Erik. (2014) Estimating phenotypic selection in age-structured populations by removing transient fluctuations. Evolution
    Academic article

2013

  • Engen, Steinar; Sæther, Bernt-Erik; Armitage, Kenneth B.; Blumstein, Daniel T.; Clutton-Brock, Tim H.; Dobson, F. Stephen. (2013) Estimating the effect of temporally autocorrelated environments on the demography of density-independent age-structured populations. Methods in Ecology and Evolution
    Academic article
  • Sandvik, Hanno; Sæther, Bernt-Erik; Holmern, Tomas; Tufto, Jarle; Engen, Steinar; Roy, HE. (2013) Generic ecological impact assessments of alien species in Norway: a semi-quantitative set of criteria. Biodiversity and Conservation
    Academic article
  • Sæther, Bernt-Erik; Coulson, Tim; Grøtan, Vidar; Engen, Steinar; Altwegg, Res; Armitage, Kenneth B.. (2013) How Life History Influences Population Dynamics in Fluctuating Environments. The American Naturalist
    Academic article
  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard. (2013) Changing environments causing time delays in population dynamics. Mathematical Biosciences
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2013) A Quantitative Genetic Model of r- and K-Selection in a Fluctuating Population. The American Naturalist
    Academic article
  • Linnerud, Marit; Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Noble, DG; Freckleton, RP. (2013) Interspecific differences in stochastic population dynamics explains variation in Taylor's temporal power law. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Grøtan, Vidar. (2013) Species diversity and community similarity in fluctuating environments: parametric approaches using species abundance distributions. Journal of Animal Ecology
    Academic literature review

2012

  • Grøtan, Vidar; Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik; DeVries, PJ. (2012) Seasonal cycles of species diversity and similarity in a tropical butterfly community. Journal of Animal Ecology
    Academic article
  • Tufto, Jarle; Lande, Russell; Ringsby, Thor Harald; Engen, Steinar; Sæther, Bernt-Erik; Walla, T. R.. (2012) Estimating Brownian motion dispersal rate, longevity and population density from spatially explicit mark-recapture data on tropical butterflies. Journal of Animal Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik; Kvalnes, Thomas; Jensen, Henrik. (2012) Estimating fluctuating selection in age-structured populations. Journal of Evolutionary Biology
    Academic article
  • Bjørkvoll, Eirin Marie; Grøtan, Vidar; Aanes, Sondre; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2012) Stochastic Population Dynamics and Life-History Variation in Marine Fish Species. The American Naturalist
    Academic article
  • Bellier, Edwige; Grøtan, Vidar; Engen, Steinar; Schartau, Ann Kristin; Diserud, Ola Håvard; Finstad, Anders Gravbrøt. (2012) Combining counts and incidence data: an efficient approach for estimating the log-normal species abundance distribution and diversity indices. Oecologia
    Academic article
  • Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar. (2012) Effects of demographic structure on key properties of stochastic density-independent population dynamics. Theoretical Population Biology
    Academic article

2011

  • Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2011) The influence of persistent individual differences and age at maturity on effective population size. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2011) EVOLUTION OF A PLASTIC QUANTITATIVE TRAIT IN AN AGE-STRUCTURED POPULATION IN A FLUCTUATING ENVIRONMENT. Evolution
    Academic article
  • Certain, Gregoire; Skarpaas, Olav; Bjerke, Jarle Werner; Framstad, Erik; Lindholm, Markus; Nilsen, Jan-Erik. (2011) The Nature Index: A General Framework for Synthesizing Knowledge on the State of Biodiversity. PLOS ONE
    Academic article
  • Bjørkvoll, Eirin Marie; Aanes, Sondre; Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Beaked redfish and golden redfish: Estimating abundances at age and population dynamical parameters by fitting a stochastic population model to abundance data within a Bayesian framework. ICES Arctic Fisheries Working Group ICES Arctic Fisheries Working Group
    Report
  • Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Noble, DG; Freckleton, RP. (2011) Rarity, life history and scaling of the dynamics in time and space of British birds. Journal of Animal Ecology
    Academic article
  • Engen, Steinar; Grøtan, Vidar; Sæther, Bernt-Erik. (2011) Estimating similarity of communities: a parametric approach to spatio-temporal analysis of species diversity. Ecography
    Academic article
  • Pol, Martijn Van de; Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar; Ens, Bruno J; Oosterbeek, Kees. (2011) Poor environmental tracking can make extinction risk insensitive to the colour of environmental noise. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Lee, Aline Magdalena; Sæther, Bernt-Erik; Engen, Steinar. (2011) Demographic Stochasticity, Allee Effects, and Extinction: The Influence of Mating System and Sex Ratio. The American Naturalist
    Academic article
  • Engen, Steinar; Aagaard, Kaare; Bongard, Terje. (2011) Disentangling the effects of heterogeneity, stochastic dynamics and sampling in a community of aquatic insects. Ecological Modelling
    Academic article
  • Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2011) Integral projection models for finite populations in a stochastic environment. Ecology
    Academic article

2010

  • Vindenes, Yngvild; Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2010) FIXATION OF SLIGHTLY BENEFICIAL MUTATIONS: EFFECTS OF LIFE HISTORY. Evolution
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik; Gienapp, P. (2010) Estimating the ratio of effective to actual size of an age-structured population from individual demographic data. Journal of Evolutionary Biology
    Academic article
  • Pol, Martijn Van de; Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar; Ens, BJ; Oosterbeek, K. (2010) Effects of climate change and variability on population dynamics in a long-lived shorebird. Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2010) Population Consequences of Climate Change.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2010) Population Analyses.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar; Odden, John; Linnell, John D. C.; Grøtan, Vidar; Andrén, Henrik. (2010) Sustainable harvest strategies for age-structured Eurasian lynx populations: The use of reproductive value. Biological Conservation
    Academic article

2009

  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik; Dobson, Stephen. (2009) Reproductive Value and the Stochastic Demography of Age-Structured Populations. The American Naturalist
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2009) Reproductive Value and Fluctuating Selection in an Age-Structured Population. Genetics
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2009) An evolutionary maximum principle for density-dependent population dynamics in a fluctuating environment. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2009) Fixation probability of beneficial mutations in a fluctuating population. Genetics Research
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; H., van Balen Johan; Perdeck, Albert C.; Visser, Marcel E.. (2009) Spatial and temporal variation in the relative contribution of density dependence, climate variation and migration to fluctuations in the size of great tit populations. Journal of Animal Ecology
    Academic article
  • Steinnes, Eiliv; Gaare, E; Engen, Steinar. (2009) Influence of soil acidification in southern Norway on the Cs-137 exposure of moose?. Science of the Total Environment
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Solberg, EJ. (2009) Effective size of harvested ungulate populations. Animal Conservation
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Lillegård, Magnar; Solberg, EJ; Engen, Steinar. (2009) Geographical variation in the influence of density dependence and climate on the recruitment of Norwegian moose. Oecologia
    Academic article
  • Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Noble, DG; Freckleton, RP. (2009) Critical parameters for predicting population fluctuations of some British passerines. Journal of Animal Ecology
    Academic article

2008

  • Beissinger, SR; Wunderle, JW; Meyers, JM; Sæther, Bernt-Erik; Engen, Steinar. (2008) Anatomy of a bottleneck: diagnosing factors limiting population growth in the Puerto Rican parrot. Ecological Monographs
    Academic literature review
  • Engen, Steinar; Sæther, Bernt-Erik; Sverdrup-Thygeson, A; Grøtan, Vidar; Ødegaard, F. (2008) Assessment of species diversity from species abundance distributions at different localities. Oikos
    Academic article
  • Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2008) Understanding mating systems: A mathematical model of the pair formation process. Theoretical Population Biology
    Academic article
  • Engen, Steinar; Lande, R.; Sæther, Bernt-Erik. (2008) A general model for analyzing Taylor´s spatial scaling laws. Ecology
    Academic article
  • Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2008) Individual heterogeneity in vital parameters and demograpiic stochasticity. The American Naturalist
    Academic article
  • Jonsson, B; Jonsson, N; Hindar, K; Northcote, TG; Engen, Steinar. (2008) Asymmetric competition drives lake use of coexisting salmonids. Oecologia
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik; Grøtan, Vidar; Drever, Mark C.. (2008) Estimation of population parameters from aerial counts of north American mallards: a cautionary tale. Ecological Applications
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Filli, Flurin; Engen, Steinar. (2008) Effects of climate on population fluctuations of ibex. Global Change Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Grøtan, Vidar; Bregnballe, Thomas; Both, Christiaan; Tryjanowski, Piotr. (2008) Forms of density regulation and (quasi-) stationary distributions of population sizes in birds. Oikos
    Academic article
  • Engen, Steinar; Grøtan, Vidar; Halley, Duncan; Nygård, Torgeir. (2008) An efficient multivariate approach for estimating preference when individual observations are dependent. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Lillegård, Magnar; Grøtan, Vidar; Drever, Mark C.; Engen, Steinar; Nudds, Thomas D.. (2008) Geographical gradients in the population dynamics of North American prairie ducks. Journal of Animal Ecology
    Academic article

2007

  • Sæther, Bernt-Erik; Engen, Steinar; Solberg, EJ; Heim, M. (2007) Estimating the growth of a newly established moose population using reproductive value. Ecography
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik; Festa-Bianchet, M. (2007) Using reproductive value to estimate key parameters in density-independent age-structured populations. Journal of Theoretical Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Grøtan, Vidar; Fiedler, W; Matthysen, E; Visser, ME. (2007) The extended Moran effect and large-scale synchronous fluctuations in the size of great tit and blue tit populations. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Lillegård, Magnar; Grøtan, Vidar; Filli, F; Engen, Steinar. (2007) Predicting fluctuations of reintroduced ibex populations: the importance of density dependence, environmental stochasticity and uncertain population estimates. Journal of Animal Ecology
    Academic article
  • Engen, Steinar. (2007) Stochastic growth and extinction in a spatial geometric Brownian population model with migration and correlated noise. Mathematical Biosciences
    Academic article
  • Engen, Steinar. (2007) Heterogeneity in dynamic species abundance model: the selective effect of extinction processes. Mathematical Biosciences
    Academic article
  • Engen, Steinar. (2007) Heterogeneous communities with lognormal species abundance distribution: species-area curves and sustainability. Journal of Theoretical Biology
    Academic article
  • Engen, Steinar; Ringsby, Thor Harald; Sæther, Bernt-Erik; Lande, Russell; Jensen, Henrik; Lillegård, Magnar. (2007) Effective size of fluctuating populations with two sexes and overlapping generations. Evolution
    Academic article
  • Aanes, Sondre; Engen, Steinar; Sæther, Bernt-Erik; Aanes, Ronny. (2007) Estimation of the parameters of fish stock dynamics from catch-at-age data and indices of abundance: can natural and fishing mortality be separated?. Canadian Journal of Fisheries and Aquatic Sciences
    Academic article

2006

  • Ringsby, Thor Harald; Sæther, Bernt-Erik; Jensen, Henrik; Engen, Steinar. (2006) Demographic characteristics of extinction in a small, insular population of house sparrows in Northern Norway. Conservation Biology
    Academic article
  • Lande, R; Engen, Steinar; Sæther, Bernt-Erik; Coulson, T. (2006) Estimating density dependence from time series of population age structure. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Grøtan, Vidar; Tryjanowski, P.; Barbraud, C; Engen, Steinar; Fulin, M. (2006) Climate and spatio-temporal variation in the population dynamics of a long-distance migrant, the white stork. Journal of Animal Ecology
    Academic article

2005

  • Sæther, Bernt-Erik; Sutherland, W.J.; Engen, Steinar. (2005) Climate influences on avian populations dynamics. Advances in Ecological Research
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik; Bregnballe, T. (2005) Estimating the pattern of synchrony in fluctuating populations. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Persson, J; Brøseth, H; Landa, A.; Willebrand, T.. (2005) Management strategies for the wolverine in Scandinavia. Journal of Wildlife Management
    Academic article
  • Sæther, Bernt-Erik; Lande, R; Engen, Steinar; Weimerskich, H; Lillegård, M.; Altwegg, R. (2005) Generation time and temporal scaling of bird population dynamics. Nature
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Solberg, E.J.; Linnell, J.D.C.; Andersen, Reidar. (2005) Climate causes large-scale spatial synchrony in population fluctuations of a temperate herbivore. Ecology
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik. (2005) Effective size of a fluctuating age-structured population. Genetics
    Academic article
  • Asbjørnsen, E.J.; Sæther, Bernt-Erik; Linnell, J.D.C.; Engen, Steinar; Andersen, Reidar; Bretten, T. (2005) Predicting the growth of a small introduced muskox population using population prediction intervals. Journal of Animal Ecology
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik; Toresen, Reidar. (2005) Harvesting strategies for Norwegian spring-spawning herring. Oikos
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik. (2005) Bootstrap methods for estimating spatial synchrony of fluctuating populations: an addendum. Oikos
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik. (2005) Bootstrap methods for estimating spatial synchrony of fluctuating populations. Oikos
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik; Weimerskirch, H. (2005) Extinction in relation to demographic and environmental stochasticity in age-structured models. Mathematical Biosciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Moller, AP; Visser, ME; Matthysen, E; Fiedler, W. (2005) Time to extinction of bird populations. Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2005) Generalizations of the Moran effect explaining spatial synchrony in population fluctuations. The American Naturalist
    Academic article

2004

  • Sæther, Bernt-Erik; Engen, Steinar. (2004) Stochastic population theory faces reality in the laboratory. Trends in Ecology & Evolution
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, R; Møller, A.P.; Bensch, S; Hasselquist, D. (2004) Time to extinction in relation to mating system and type of density regulation in populations with two sexes. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Sutherland, W.J.; Engen, Steinar. (2004) Climate influences on avian population dynamics. Advances in Ecological Research
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Møller, A.P.; Weimerskich, H; Visser, M.E.; Fiedler, W. (2004) Life history variation predicts the effects of demographic stochasticity on avian population dynamics. The American Naturalist
    Academic article
  • Walla, TR; Engen, Steinar; DeVries, PJ; Lande, R. (2004) Modeling vertical beta-diversity in tropical butterfly communities. Oikos
    Academic article

2003

  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2003) Stochastic population dynamics in ecology and conservation. Oxford University Press Oxford University Press
    Non-fiction book
  • Lindqvist, Bo Henry; Taraldsen, Gunnar; Lillegård, Magnar; Engen, Steinar. (2003) A counterexample to a claim about stochastic simulations. Biometrika
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) Pattern of variation in avian population growth rates.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) The routes to extinction.
    Academic chapter/article/Conference paper
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2003) Demographic stochasticity and Allee effects in populations with two sexes. Ecology
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik. (2003) Demographic stochasticity and Allee effects in populations with two sexes. Ecology
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2003) Wildlife Population Growth R.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) Wildlife Population Growth Rates.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) Macroecology.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar; Persson, J.; Brøseth, Henrik; Landa, Arild; Willebrand, T.. (2003) Levedyktighetsanalyser av skandinavisk jerv. NINA Fagrapport NINA Fagrapport
    Report
  • Sæther, Bernt-Erik; Engen, Steinar; Møller, Anders Pape; Matthysen, Erik; Adriaensen, Frank; Fiedler, Wolfgang. (2003) Climate variation and regional gradients in population dynamics of two hole-nesting passerines. Proceedings of the Royal Society of London. Biological Sciences
    Academic article

2002

  • Engen, Steinar; Sæther, Bernt-Erik; Lande, Russell. (2002) Migration and spatio-temporal variation in population dynamics in a heterogeneous environment. Ecology
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2002) The spalitial scale of population fluctuations and quasi-extinction. The American Naturalist
    Academic article
  • Aanes, S; Engen, Steinar; Sæther, Bernt-Erik. (2002) Sustainable harvesting strategies of willow grouse (Lagopus lagopus) in a fluctuating environment. Ecological Applications
    Academic article
  • Engen, Steinar; Lande, Russell; Walla, T.; DeVries, P.J.. (2002) Analysing spatial structure of communities by two-dimensional Poisson lognormal species abundance model. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, Russell; Both, Christiaan; Visser, Marcel. (2002) Density-dependence and stochastic variation in the dynamics of newly established small songbird population. Oikos
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2002) Estimating density-dependence in age-structured populations. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Filli, Florin; Aanes, Ronny; Schrøder, W.; Andersen, Reidar. (2002) Contrasting stochastic population dynamics of two introdused Swiss populations of Ibex. Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2002) Including stochasticity in population viability analysis.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2002) Including uncertainties in population viability analysis using Population Prediction Intervals. University of Chicago Press University of Chicago Press
    Textbook
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik; Filli, Florin; Matthysen, Erik; Weimerskirch, H.. (2002) Estimating density dependence from population time series using demographic theory and life story data. The American Naturalist
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2002) Estimating density dependence in time-series of age-structured popultions. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Filli, Florin; Aanes, Ronny; Schrøder, W.; Andersen, Reidar. (2002) Stochastic population dynamics of an introduced swiss population of the ibex. Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik; Lande, Russell. (2002) Migration and spatiotemporal variation in population dynamics in a heterogeneous environment. Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2002) Pattern of variation in avian population growth rates. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Lande, Russell; Engen, Steinar; Both, Christiaan; Visser, Marcel. (2002) Density dependence and stochastic variation in the dynamics of a newly established small songbird population. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Matthysen, Erik. (2002) Demographic charachteristics and population dynamical patterns of solitary birds. Science
    Academic article

2001

  • Lande, Russell; Sæther, Bernt-Erik; Engen, Steinar. (2001) Sustainable exploitation of fluctuation populations.
    Academic chapter/article/Conference paper
  • Engen, Steinar. (2001) A dynamic and spatial model with migration generating the log-Gaussian field of population densities. Mathematical Biosciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Solberg, Erling Johan. (2001) Optimal harvest of age-structured populations of moose Alces alces in a fluctuating environment. Wildlife Biology
    Academic article
  • Sæther, Bernt-Erik; Møller, Anders Pape; Engen, Steinar. (2001) Stochastic population dynamics and time to extinction of a declining population of barn swallows. Journal of Animal Ecology
    Academic article

2000

  • Engen, Steinar; Sæther, Bernt-Erik. (2000) Predicting the time to quasi-extinction for populations far below their carrying capacity. Journal of Theoretical Biology
    Academic article
  • Tufto, Jarle; Sæther, Bernt-Erik; Engen, Steinar; Arcese, Peter; Jerstad, Kurt; Røstad, Ole Wiggo. (2000) Bayesian meta-analysis of demographic parameters in three small, temperate passerines. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, Russell; Arcese, Peter; Smith, James N.M.. (2000) Estimating the time to extinction in an island population of song sparrows. Proceedings of the Royal Society of Edinburgh Section B
    Academic article
  • Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar; Jerstad, Kurt; Røstad, Ole Wiggo; Skåtan, Jon Erling. (2000) Population dynamical consequences of climate change for a small temperate songbird. Science
    Academic article
  • Ødegaard, Frode; Diserud, Ola Håvard; Engen, Steinar; Aagaard, Kaare Hilmar. (2000) The Magnitude of Local Host Specificity for Phytophagous Insects and its Implications for Estimates of Global Species Richness. Conservation Biology
    Academic article
  • Diserud, Ola Håvard; Engen, Steinar. (2000) A General and Dynamic Species Abundance Model, Embracing the Lognormal and the Gamma Models. The American Naturalist
    Academic article

1999

  • Lillegård, Magnar; Engen, Steinar. (1999) Exact confidence intervals generated by conditional parametric bootstrapping. Journal of Applied Statistics
    Academic article
  • Tufto, Jarle; Sæther, Bernt-Erik; Engen, Steinar; Swenson, Jon E.; Sandegren, Finn. (1999) Harvesting strategies for conserving minimum viable populations based on World Conservation Union criteria: brown bears in Norway. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar; Jerstad, Kurt; Røstad, Ole Wiggo; Skåtan, Jon Erling. (1999) Populasjonsdynamikken til fossekall-bestanden i Lygnavassdraget. Direktoratet for naturforvaltning Direktoratet for naturforvaltning
    Report
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, Russell. (1999) Finite metapopulation models with density-dependent migration and stochastic local dynamics. Proceedings of the Royal Society of Edinburgh Section B
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (1999) Spatial scale of population synchrony : environmental correlation versus dispersal and density regulation. The American Naturalist
    Academic article

1998

  • Sæther, Bernt-Erik; Engen, Steinar; Bakke, Øyvind; Swenson, Jon E.; Sandegren, Finn. (1998) Assessing the viability of Scandinavian brown bear, Ursus arctos, populations: the effects of uncertain parameter estimates. Oikos
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (1998) Extinction times in finite metapopulation models with stochastic local dynamics. Oikos
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (1998) Stochastic population models : some concepts, definitions and results. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Islam, Aminul; McCleery, Robin; Perrins, Christopher. (1998) Environmental stochasticity and extinction risk in a population of a small songbird, the great tit. The American Naturalist
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (1998) Stochastic population models: Some concepts, definitions and results. Oikos
    Academic article
  • Tufto, Jarle; Engen, Steinar; Raybould, Alan F.; Hindar, Kjetil. (1998) Analysis of Genetic Structure and Dispersal Patterns in a Population of Sea Beet. Genetics
    Academic article
  • Engen, Steinar; Bakke, Øyvind; Islam, Aminul. (1998) Demographic and environmental stochasticity - concepts and definitions. Biometrics
    Academic article

1997

  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (1997) Harvesting strategies for fluctuating populations based on uncertain population estimates. Journal of Theoretical Biology
    Academic article
  • Lande, Russell; Sæther, Bernt-Erik; Engen, Steinar. (1997) Threshold harvesting for sustainability of fluctuating resources. Ecology
    Academic article
  • Engen, Steinar; Lillegård, Magnar. (1997) Stochastic simulations conditioned on sufficient statistics. Biometrika
    Academic article
  • Tufto, Jarle; Engen, Steinar; Hindar, Kjetil. (1997) Stochastic dispersal processes in plant populations. Theoretical Population Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Swenson, Jon; Bakke, Øyvind; Sandegren, Finn. (1997) Levedyktighetsanalyser av skandinavisk brunbjørn. Norsk institutt for naturforskning Norsk institutt for naturforskning
    Report
  • Sæther, Bernt-Erik; Engen, Steinar. (1997) Forvaltning av små bestander : en teoretisk bakgrunn. Norsk institutt for naturforskning Norsk institutt for naturforskning
    Non-fiction book

1996

  • Tufto, Jarle; Engen, Steinar; Hindar, Kjetil. (1996) Inferring patterns of migration from gene frequencies under equilibrium conditions. Genetics
    Academic article

Journal publications

  • Vriend, Stefan J.G.; Engen, Steinar; Gustafsson, Lars; Sæther, Bernt-Erik; Grøtan, Vidar. (2025) Quantitative analyses of stochastic influences on the response to phenotypic selection in a small passerine, the collared flycatcher. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2024) Evolutionary and Ecological Processes Determining the Properties of the G Matrix. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Solbu, Erik Blystad. (2024) Assessing the sensitivity and resistance of communities in a changing environment. Journal of Animal Ecology
    Academic article
  • Lande, Russell Scott; Grøtan, Vidar; Engen, Steinar; Visser, M.E.; Sæther, Bernt-Erik. (2023) Estimating Density Dependence, Environmental Variance, and Long-Term Selection on a Stage-Structured Life History. The American Naturalist
    Academic article
  • Bellier, Edwige; Engen, Steinar; Jensen, Thomas Correll. (2022) Seasonal diversity dynamics of a boreal zooplankton community under climate impact. Oecologia
    Academic article
  • Lee, Aline Magdalena; Jarillo, Javier; Peeters, Bart; Hansen, Brage Bremset; Cao-Garcia, Francisco; Sæther, Bernt-Erik. (2022) Population responses to harvesting in fluctuating environments. Climate Research (CR)
    Academic article
  • Kvalnes, Thomas; Sæther, Bernt-Erik; Engen, Steinar; Roulin, Alexandre. (2022) Density-dependent selection and the maintenance of colour polymorphism in barn owls. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Peeters, Bart; Grøtan, Vidar; Gamelon, Marlène; Veiberg, Vebjørn; Lee, Aline Magdalena; Fryxell, John M.. (2022) Harvesting can stabilise population fluctuations and buffer the impacts of extreme climatic events. Ecology Letters
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2021) Structure of the G-matrix in relation to phenotypic contributions to fitness. Theoretical Population Biology
    Academic article
  • Bellier, Edwige; Sæther, Bernt-Erik; Engen, Steinar. (2021) Sustainable strategies for harvesting predators and prey in a fluctuating environment. Ecological Modelling
    Academic article
  • Engen, Steinar; Tian, Huaiyu; Yang, Ruifu; Bjørnstad, Ottar Nordal; Whittington, Jason; Stenseth, Nils Christian. (2021) The ecological dynamics of the coronavirus epidemics during transmission from outside sources when R0 is successfully managed below one. Royal Society Open Science
    Academic article
  • Marquez, Jonatan; Sæther, Bernt-Erik; Aanes, Sondre; Engen, Steinar; Salthaug, Are; Lee, Aline Magdalena. (2021) Age-dependent patterns of spatial autocorrelation in fish populations. Ecology
    Academic article
  • Engen, Steinar; Grøtan, Vidar; Sæther, Bernt-Erik; Coste, Christophe. (2021) An evolutionary and ecological community model for distribution of phenotypes and abundances among competing species. The American Naturalist
    Academic article
  • Jarillo, Javier; Sæther, Bernt-Erik; Engen, Steinar; Cao-garcia, Francisco Javier. (2020) Spatial scales of population synchrony in predator-prey systems. The American Naturalist
    Academic article
  • Engen, Steinar; Wright, Jonathan; Araya-Ajoy, Yimen; Sæther, Bernt-Erik. (2020) Phenotypic evolution in stochastic environments: The contribution of frequency- and density-dependent selection. Evolution
    Academic article
  • Lee, Aline Magdalena; Myhre, Ane Marlene; Markussen, Stine Svalheim; Engen, Steinar; Solberg, Erling Johan; Haanes, Hallvard. (2020) Decomposing demographic contributions to the effective population size with moose as a case study. Molecular Ecology
    Academic article
  • Wright, Jonathan; Solbu, Erik Blystad; Engen, Steinar. (2020) Contrasting patterns of density-dependent selection at different life stages can create more than one fast–slow axis of life-history variation. Ecology and Evolution
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Gustafsson, Lars; Grøtan, Vidar; Vriend, Stefan. (2020) Density-Dependent Adaptive Topography in a Small Passerine Bird, the Collared Flycatcher. The American Naturalist
    Academic article
  • Lee, Aline Magdalena; Sæther, Bernt-Erik; Engen, Steinar. (2020) Spatial covariation of competing species in a fluctuating environment. Ecology
    Academic article
  • Moorter, Bram Van; Engen, Steinar; Fryxell, John M.; Panzacchi, Manuela; Nilsen, Erlend Birkeland; Mysterud, Atle. (2020) Consequences of barriers and changing seasonality on population dynamics and harvest of migratory ungulates. Theoretical Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2019) Ecological dynamics and large scale phenotypic differentiation in density-dependent populations. Theoretical Population Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2019) Towards a predictive conservation biology: the devil is in the behaviour. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic literature review
  • Gamelon, Marlène; Vriend, Stefan; Engen, Steinar; Adriaensen, Frank; Dhondt, A.A.; Evans, Simon R.. (2019) Accounting for interspecific competition and age structure in demographic analyses of density dependence improves predictions of fluctuations in population size. Ecology Letters
    Academic article
  • Marquez, Jonatan Fredricson; Lee, Aline Magdalena; Aanes, Sondre; Engen, Steinar; Herfindal, Ivar; Salthaug, Are. (2019) Spatial scaling of population synchrony in marine fish depends on their life history. Ecology Letters
    Academic article
  • Engen, Steinar; Cao, Francisco J.; Sæther, Bernt-Erik. (2018) The effect of harvesting on the spatial synchrony of population fluctuations. Theoretical Population Biology
    Academic article
  • jarillo, javier diaz; Sæther, Bernt-Erik; Engen, Steinar; cao, francisco javier. (2018) Spatial scales of population synchrony of two competing species: effects of harvesting and strength of competition. Oikos
    Academic article
  • Engen, Steinar; Lee, Aline Magdalena; Sæther, Bernt-Erik. (2018) Spatial distribution and optimal harvesting of an age-structured population in a fluctuating environment. Mathematical Biosciences
    Academic article
  • Solbu, Erik Blystad; Diserud, Ola Håvard; Kålås, John Atle; Engen, Steinar. (2018) Heterogeneity among species and community dynamics – Norwegian bird communities as a case study. Ecological Modelling
    Academic article
  • Ovaskainen, Otso; Tikhonov, Gleb; Dunson, David; Grøtan, Vidar; Engen, Steinar; Sæther, Bernt-Erik. (2017) How are species interactions structured in species-rich communities? A new method for analysing time-series data. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2017) Evolution of stochastic demography with life history tradeoffs in density-dependent age-structured populations. Proceedings of the National Academy of Sciences of the United States of America (PNAS)
    Academic article
  • Kvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Hagen, Ingerid Julie; Rønning, Bernt; Pärn, Henrik. (2017) Reversal of response to artificial selection on body size in a wild passerine bird. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2017) r- and K-selection in fluctuating populations is determined by the evolutionary trade-off between two fitness measures: Growth rate and lifetime reproductive success. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2017) Extinction risk and lack of evolutionary rescue under resource depletion or area reduction. The American Naturalist
    Academic article
  • Lee, Aline Magdalena; Sæther, Bernt-Erik; Markussen, Stine Svalheim; Engen, Steinar. (2017) Modelling time to population extinction when individual reproduction is autocorrelated. Ecology Letters
    Academic article
  • Engen, Steinar. (2017) Spatial synchrony and harvesting in fluctuating populations:Relaxing the small noise assumption. Theoretical Population Biology
    Academic article
  • Gamelon, Marlène; Grøtan, Vidar; Nilsson, Anna L. K.; Engen, Steinar; Hurrell, James W.; Jerstad, Kurt. (2017) Interactions between demography and environmental effects are important determinants of population dynamics. Science Advances
    Academic article
  • Vindenes, Yngvild; Engen, Steinar. (2017) Demographic stochasticity and temporal autocorrelation in the dynamics of structured populations. Oikos
    Academic article
  • Myhre, Ane Marlene; Engen, Steinar; Sæther, Bernt-Erik. (2017) Effective size in density‐dependent two‐sex populations: the effect of mating systems. Journal of Evolutionary Biology
    Academic article
  • Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Coulson, Tim; Grant, Peter R.; Visser, Marcel E.. (2016) Demographic routes to variability and regulation in bird populations. Nature Communications
    Academic article
  • Bjørkvoll, Eirin Marie; Lee, Aline Magdalena; Grøtan, Vidar; Sæther, Bernt-Erik; Stien, Audun; Engen, Steinar. (2016) Demographic buffering of life histories? Implications of the choice of measurement scale. Ecology
    Academic article
  • Engen, Steinar; Solbu, Erik Blystad; Sæther, Bernt-Erik. (2016) Neutral or non-neutral communities: temporal dynamics provide the answer. Oikos
    Academic article
  • Gamelon, Marlène; Grøtan, Vidar; Engen, Steinar; Bjørkvoll, Eirin Marie; Visser, Marcel E.; Sæther, Bernt-Erik. (2016) Density dependence in an age-structured population of great tits: identifying the critical age classes. Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2016) Optimal age of maturity in fluctuating environments under r- and K-selection. Oikos
    Academic article
  • Kvalnes, Thomas; Sæther, Bernt-Erik; Haanes, Hallvard; Røed, Knut; Engen, Steinar; Solberg, Erling Johan. (2016) Harvest-induced phenotypic selection in an island population of moose, Alces alces. Evolution
    Academic article
  • Myhre, Ane Marlene; Engen, Steinar; Sæther, Bernt-Erik. (2016) Effective size of density-dependent populations in fluctuating environments. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2016) Spatial synchrony in population dynamics: The effects of demographic stochasticity and density regulation with a spatial scale. Mathematical Biosciences
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2016) Phenotypic evolution by distance in fluctuating environments: The contribution of dispersal, selection and random genetic drift. Theoretical Population Biology
    Academic article
  • Sæther, Bernt-Erik; Visser, Marcel E; Grøtan, Vidar; Engen, Steinar. (2016) Evidence for r-and K-selection in a wild bird population: A reciprocal link between ecology and evolution. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard. (2016) Characteristics of temporal changes in communities where dynamics differ between species. Theoretical Population Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2015) The concept of fitness in fluctuating environments. Trends in Ecology & Evolution
    Academic literature review
  • Lee, Aline Magdalena; Bjørkvoll, Eirin Marie; Hansen, Brage Bremset; Albon, Steve D.; Stien, Audun; Sæther, Bernt-Erik. (2015) An integrated population model for a long-lived ungulate: more efficient data use with Bayesian methods. Oikos
    Academic article
  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard. (2015) Guidelines when estimating temporal changes in density dependent populations. Ecological Modelling
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2014) Evolutionary consequences of nonselective harvesting in density-dependent populations. The American Naturalist
    Academic article
  • Bellier, Edwige Louise; Grøtan, Vidar; Engen, Steinar; Schartau, Ann Kristin; Herfindal, Ivar; Finstad, Anders Gravbrøt. (2014) Distance decay of similarity, effects of environmental noise and ecological heterogeneity among species in the spatio-temporal dynamics of a dispersal-limited community. Ecography
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2014) Evolution in fluctuating environments: Decomposing selection into additive components of the robertson-price equation. Evolution
    Academic article
  • Engen, Steinar; Kvalnes, Thomas; Sæther, Bernt-Erik. (2014) Estimating phenotypic selection in age-structured populations by removing transient fluctuations. Evolution
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik; Armitage, Kenneth B.; Blumstein, Daniel T.; Clutton-Brock, Tim H.; Dobson, F. Stephen. (2013) Estimating the effect of temporally autocorrelated environments on the demography of density-independent age-structured populations. Methods in Ecology and Evolution
    Academic article
  • Sandvik, Hanno; Sæther, Bernt-Erik; Holmern, Tomas; Tufto, Jarle; Engen, Steinar; Roy, HE. (2013) Generic ecological impact assessments of alien species in Norway: a semi-quantitative set of criteria. Biodiversity and Conservation
    Academic article
  • Sæther, Bernt-Erik; Coulson, Tim; Grøtan, Vidar; Engen, Steinar; Altwegg, Res; Armitage, Kenneth B.. (2013) How Life History Influences Population Dynamics in Fluctuating Environments. The American Naturalist
    Academic article
  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard. (2013) Changing environments causing time delays in population dynamics. Mathematical Biosciences
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2013) A Quantitative Genetic Model of r- and K-Selection in a Fluctuating Population. The American Naturalist
    Academic article
  • Linnerud, Marit; Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Noble, DG; Freckleton, RP. (2013) Interspecific differences in stochastic population dynamics explains variation in Taylor's temporal power law. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Grøtan, Vidar. (2013) Species diversity and community similarity in fluctuating environments: parametric approaches using species abundance distributions. Journal of Animal Ecology
    Academic literature review
  • Grøtan, Vidar; Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik; DeVries, PJ. (2012) Seasonal cycles of species diversity and similarity in a tropical butterfly community. Journal of Animal Ecology
    Academic article
  • Tufto, Jarle; Lande, Russell; Ringsby, Thor Harald; Engen, Steinar; Sæther, Bernt-Erik; Walla, T. R.. (2012) Estimating Brownian motion dispersal rate, longevity and population density from spatially explicit mark-recapture data on tropical butterflies. Journal of Animal Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik; Kvalnes, Thomas; Jensen, Henrik. (2012) Estimating fluctuating selection in age-structured populations. Journal of Evolutionary Biology
    Academic article
  • Bjørkvoll, Eirin Marie; Grøtan, Vidar; Aanes, Sondre; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2012) Stochastic Population Dynamics and Life-History Variation in Marine Fish Species. The American Naturalist
    Academic article
  • Bellier, Edwige; Grøtan, Vidar; Engen, Steinar; Schartau, Ann Kristin; Diserud, Ola Håvard; Finstad, Anders Gravbrøt. (2012) Combining counts and incidence data: an efficient approach for estimating the log-normal species abundance distribution and diversity indices. Oecologia
    Academic article
  • Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar. (2012) Effects of demographic structure on key properties of stochastic density-independent population dynamics. Theoretical Population Biology
    Academic article
  • Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2011) The influence of persistent individual differences and age at maturity on effective population size. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2011) EVOLUTION OF A PLASTIC QUANTITATIVE TRAIT IN AN AGE-STRUCTURED POPULATION IN A FLUCTUATING ENVIRONMENT. Evolution
    Academic article
  • Certain, Gregoire; Skarpaas, Olav; Bjerke, Jarle Werner; Framstad, Erik; Lindholm, Markus; Nilsen, Jan-Erik. (2011) The Nature Index: A General Framework for Synthesizing Knowledge on the State of Biodiversity. PLOS ONE
    Academic article
  • Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Noble, DG; Freckleton, RP. (2011) Rarity, life history and scaling of the dynamics in time and space of British birds. Journal of Animal Ecology
    Academic article
  • Engen, Steinar; Grøtan, Vidar; Sæther, Bernt-Erik. (2011) Estimating similarity of communities: a parametric approach to spatio-temporal analysis of species diversity. Ecography
    Academic article
  • Pol, Martijn Van de; Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar; Ens, Bruno J; Oosterbeek, Kees. (2011) Poor environmental tracking can make extinction risk insensitive to the colour of environmental noise. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Lee, Aline Magdalena; Sæther, Bernt-Erik; Engen, Steinar. (2011) Demographic Stochasticity, Allee Effects, and Extinction: The Influence of Mating System and Sex Ratio. The American Naturalist
    Academic article
  • Engen, Steinar; Aagaard, Kaare; Bongard, Terje. (2011) Disentangling the effects of heterogeneity, stochastic dynamics and sampling in a community of aquatic insects. Ecological Modelling
    Academic article
  • Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2011) Integral projection models for finite populations in a stochastic environment. Ecology
    Academic article
  • Vindenes, Yngvild; Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2010) FIXATION OF SLIGHTLY BENEFICIAL MUTATIONS: EFFECTS OF LIFE HISTORY. Evolution
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik; Gienapp, P. (2010) Estimating the ratio of effective to actual size of an age-structured population from individual demographic data. Journal of Evolutionary Biology
    Academic article
  • Pol, Martijn Van de; Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar; Ens, BJ; Oosterbeek, K. (2010) Effects of climate change and variability on population dynamics in a long-lived shorebird. Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Odden, John; Linnell, John D. C.; Grøtan, Vidar; Andrén, Henrik. (2010) Sustainable harvest strategies for age-structured Eurasian lynx populations: The use of reproductive value. Biological Conservation
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik; Dobson, Stephen. (2009) Reproductive Value and the Stochastic Demography of Age-Structured Populations. The American Naturalist
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2009) Reproductive Value and Fluctuating Selection in an Age-Structured Population. Genetics
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2009) An evolutionary maximum principle for density-dependent population dynamics in a fluctuating environment. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2009) Fixation probability of beneficial mutations in a fluctuating population. Genetics Research
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; H., van Balen Johan; Perdeck, Albert C.; Visser, Marcel E.. (2009) Spatial and temporal variation in the relative contribution of density dependence, climate variation and migration to fluctuations in the size of great tit populations. Journal of Animal Ecology
    Academic article
  • Steinnes, Eiliv; Gaare, E; Engen, Steinar. (2009) Influence of soil acidification in southern Norway on the Cs-137 exposure of moose?. Science of the Total Environment
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Solberg, EJ. (2009) Effective size of harvested ungulate populations. Animal Conservation
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Lillegård, Magnar; Solberg, EJ; Engen, Steinar. (2009) Geographical variation in the influence of density dependence and climate on the recruitment of Norwegian moose. Oecologia
    Academic article
  • Sæther, Bernt-Erik; Grøtan, Vidar; Engen, Steinar; Noble, DG; Freckleton, RP. (2009) Critical parameters for predicting population fluctuations of some British passerines. Journal of Animal Ecology
    Academic article
  • Beissinger, SR; Wunderle, JW; Meyers, JM; Sæther, Bernt-Erik; Engen, Steinar. (2008) Anatomy of a bottleneck: diagnosing factors limiting population growth in the Puerto Rican parrot. Ecological Monographs
    Academic literature review
  • Engen, Steinar; Sæther, Bernt-Erik; Sverdrup-Thygeson, A; Grøtan, Vidar; Ødegaard, F. (2008) Assessment of species diversity from species abundance distributions at different localities. Oikos
    Academic article
  • Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2008) Understanding mating systems: A mathematical model of the pair formation process. Theoretical Population Biology
    Academic article
  • Engen, Steinar; Lande, R.; Sæther, Bernt-Erik. (2008) A general model for analyzing Taylor´s spatial scaling laws. Ecology
    Academic article
  • Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2008) Individual heterogeneity in vital parameters and demograpiic stochasticity. The American Naturalist
    Academic article
  • Jonsson, B; Jonsson, N; Hindar, K; Northcote, TG; Engen, Steinar. (2008) Asymmetric competition drives lake use of coexisting salmonids. Oecologia
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik; Grøtan, Vidar; Drever, Mark C.. (2008) Estimation of population parameters from aerial counts of north American mallards: a cautionary tale. Ecological Applications
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Filli, Flurin; Engen, Steinar. (2008) Effects of climate on population fluctuations of ibex. Global Change Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Grøtan, Vidar; Bregnballe, Thomas; Both, Christiaan; Tryjanowski, Piotr. (2008) Forms of density regulation and (quasi-) stationary distributions of population sizes in birds. Oikos
    Academic article
  • Engen, Steinar; Grøtan, Vidar; Halley, Duncan; Nygård, Torgeir. (2008) An efficient multivariate approach for estimating preference when individual observations are dependent. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Lillegård, Magnar; Grøtan, Vidar; Drever, Mark C.; Engen, Steinar; Nudds, Thomas D.. (2008) Geographical gradients in the population dynamics of North American prairie ducks. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Solberg, EJ; Heim, M. (2007) Estimating the growth of a newly established moose population using reproductive value. Ecography
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik; Festa-Bianchet, M. (2007) Using reproductive value to estimate key parameters in density-independent age-structured populations. Journal of Theoretical Biology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Grøtan, Vidar; Fiedler, W; Matthysen, E; Visser, ME. (2007) The extended Moran effect and large-scale synchronous fluctuations in the size of great tit and blue tit populations. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Lillegård, Magnar; Grøtan, Vidar; Filli, F; Engen, Steinar. (2007) Predicting fluctuations of reintroduced ibex populations: the importance of density dependence, environmental stochasticity and uncertain population estimates. Journal of Animal Ecology
    Academic article
  • Engen, Steinar. (2007) Stochastic growth and extinction in a spatial geometric Brownian population model with migration and correlated noise. Mathematical Biosciences
    Academic article
  • Engen, Steinar. (2007) Heterogeneity in dynamic species abundance model: the selective effect of extinction processes. Mathematical Biosciences
    Academic article
  • Engen, Steinar. (2007) Heterogeneous communities with lognormal species abundance distribution: species-area curves and sustainability. Journal of Theoretical Biology
    Academic article
  • Engen, Steinar; Ringsby, Thor Harald; Sæther, Bernt-Erik; Lande, Russell; Jensen, Henrik; Lillegård, Magnar. (2007) Effective size of fluctuating populations with two sexes and overlapping generations. Evolution
    Academic article
  • Aanes, Sondre; Engen, Steinar; Sæther, Bernt-Erik; Aanes, Ronny. (2007) Estimation of the parameters of fish stock dynamics from catch-at-age data and indices of abundance: can natural and fishing mortality be separated?. Canadian Journal of Fisheries and Aquatic Sciences
    Academic article
  • Ringsby, Thor Harald; Sæther, Bernt-Erik; Jensen, Henrik; Engen, Steinar. (2006) Demographic characteristics of extinction in a small, insular population of house sparrows in Northern Norway. Conservation Biology
    Academic article
  • Lande, R; Engen, Steinar; Sæther, Bernt-Erik; Coulson, T. (2006) Estimating density dependence from time series of population age structure. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Grøtan, Vidar; Tryjanowski, P.; Barbraud, C; Engen, Steinar; Fulin, M. (2006) Climate and spatio-temporal variation in the population dynamics of a long-distance migrant, the white stork. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Sutherland, W.J.; Engen, Steinar. (2005) Climate influences on avian populations dynamics. Advances in Ecological Research
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik; Bregnballe, T. (2005) Estimating the pattern of synchrony in fluctuating populations. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Persson, J; Brøseth, H; Landa, A.; Willebrand, T.. (2005) Management strategies for the wolverine in Scandinavia. Journal of Wildlife Management
    Academic article
  • Sæther, Bernt-Erik; Lande, R; Engen, Steinar; Weimerskich, H; Lillegård, M.; Altwegg, R. (2005) Generation time and temporal scaling of bird population dynamics. Nature
    Academic article
  • Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Solberg, E.J.; Linnell, J.D.C.; Andersen, Reidar. (2005) Climate causes large-scale spatial synchrony in population fluctuations of a temperate herbivore. Ecology
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik. (2005) Effective size of a fluctuating age-structured population. Genetics
    Academic article
  • Asbjørnsen, E.J.; Sæther, Bernt-Erik; Linnell, J.D.C.; Engen, Steinar; Andersen, Reidar; Bretten, T. (2005) Predicting the growth of a small introduced muskox population using population prediction intervals. Journal of Animal Ecology
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik; Toresen, Reidar. (2005) Harvesting strategies for Norwegian spring-spawning herring. Oikos
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik. (2005) Bootstrap methods for estimating spatial synchrony of fluctuating populations: an addendum. Oikos
    Academic article
  • Lillegård, Magnar; Engen, Steinar; Sæther, Bernt-Erik. (2005) Bootstrap methods for estimating spatial synchrony of fluctuating populations. Oikos
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik; Weimerskirch, H. (2005) Extinction in relation to demographic and environmental stochasticity in age-structured models. Mathematical Biosciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Moller, AP; Visser, ME; Matthysen, E; Fiedler, W. (2005) Time to extinction of bird populations. Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2005) Generalizations of the Moran effect explaining spatial synchrony in population fluctuations. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2004) Stochastic population theory faces reality in the laboratory. Trends in Ecology & Evolution
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, R; Møller, A.P.; Bensch, S; Hasselquist, D. (2004) Time to extinction in relation to mating system and type of density regulation in populations with two sexes. Journal of Animal Ecology
    Academic article
  • Sæther, Bernt-Erik; Sutherland, W.J.; Engen, Steinar. (2004) Climate influences on avian population dynamics. Advances in Ecological Research
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Møller, A.P.; Weimerskich, H; Visser, M.E.; Fiedler, W. (2004) Life history variation predicts the effects of demographic stochasticity on avian population dynamics. The American Naturalist
    Academic article
  • Walla, TR; Engen, Steinar; DeVries, PJ; Lande, R. (2004) Modeling vertical beta-diversity in tropical butterfly communities. Oikos
    Academic article
  • Lindqvist, Bo Henry; Taraldsen, Gunnar; Lillegård, Magnar; Engen, Steinar. (2003) A counterexample to a claim about stochastic simulations. Biometrika
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2003) Demographic stochasticity and Allee effects in populations with two sexes. Ecology
    Academic article
  • Engen, Steinar; Lande, R; Sæther, Bernt-Erik. (2003) Demographic stochasticity and Allee effects in populations with two sexes. Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Møller, Anders Pape; Matthysen, Erik; Adriaensen, Frank; Fiedler, Wolfgang. (2003) Climate variation and regional gradients in population dynamics of two hole-nesting passerines. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik; Lande, Russell. (2002) Migration and spatio-temporal variation in population dynamics in a heterogeneous environment. Ecology
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (2002) The spalitial scale of population fluctuations and quasi-extinction. The American Naturalist
    Academic article
  • Aanes, S; Engen, Steinar; Sæther, Bernt-Erik. (2002) Sustainable harvesting strategies of willow grouse (Lagopus lagopus) in a fluctuating environment. Ecological Applications
    Academic article
  • Engen, Steinar; Lande, Russell; Walla, T.; DeVries, P.J.. (2002) Analysing spatial structure of communities by two-dimensional Poisson lognormal species abundance model. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, Russell; Both, Christiaan; Visser, Marcel. (2002) Density-dependence and stochastic variation in the dynamics of newly established small songbird population. Oikos
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2002) Estimating density-dependence in age-structured populations. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Filli, Florin; Aanes, Ronny; Schrøder, W.; Andersen, Reidar. (2002) Contrasting stochastic population dynamics of two introdused Swiss populations of Ibex. Ecology
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik; Filli, Florin; Matthysen, Erik; Weimerskirch, H.. (2002) Estimating density dependence from population time series using demographic theory and life story data. The American Naturalist
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2002) Estimating density dependence in time-series of age-structured popultions. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Filli, Florin; Aanes, Ronny; Schrøder, W.; Andersen, Reidar. (2002) Stochastic population dynamics of an introduced swiss population of the ibex. Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik; Lande, Russell. (2002) Migration and spatiotemporal variation in population dynamics in a heterogeneous environment. Ecology
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar. (2002) Pattern of variation in avian population growth rates. Philosophical Transactions of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Lande, Russell; Engen, Steinar; Both, Christiaan; Visser, Marcel. (2002) Density dependence and stochastic variation in the dynamics of a newly established small songbird population. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Matthysen, Erik. (2002) Demographic charachteristics and population dynamical patterns of solitary birds. Science
    Academic article
  • Engen, Steinar. (2001) A dynamic and spatial model with migration generating the log-Gaussian field of population densities. Mathematical Biosciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Solberg, Erling Johan. (2001) Optimal harvest of age-structured populations of moose Alces alces in a fluctuating environment. Wildlife Biology
    Academic article
  • Sæther, Bernt-Erik; Møller, Anders Pape; Engen, Steinar. (2001) Stochastic population dynamics and time to extinction of a declining population of barn swallows. Journal of Animal Ecology
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (2000) Predicting the time to quasi-extinction for populations far below their carrying capacity. Journal of Theoretical Biology
    Academic article
  • Tufto, Jarle; Sæther, Bernt-Erik; Engen, Steinar; Arcese, Peter; Jerstad, Kurt; Røstad, Ole Wiggo. (2000) Bayesian meta-analysis of demographic parameters in three small, temperate passerines. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, Russell; Arcese, Peter; Smith, James N.M.. (2000) Estimating the time to extinction in an island population of song sparrows. Proceedings of the Royal Society of Edinburgh Section B
    Academic article
  • Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar; Jerstad, Kurt; Røstad, Ole Wiggo; Skåtan, Jon Erling. (2000) Population dynamical consequences of climate change for a small temperate songbird. Science
    Academic article
  • Ødegaard, Frode; Diserud, Ola Håvard; Engen, Steinar; Aagaard, Kaare Hilmar. (2000) The Magnitude of Local Host Specificity for Phytophagous Insects and its Implications for Estimates of Global Species Richness. Conservation Biology
    Academic article
  • Diserud, Ola Håvard; Engen, Steinar. (2000) A General and Dynamic Species Abundance Model, Embracing the Lognormal and the Gamma Models. The American Naturalist
    Academic article
  • Lillegård, Magnar; Engen, Steinar. (1999) Exact confidence intervals generated by conditional parametric bootstrapping. Journal of Applied Statistics
    Academic article
  • Tufto, Jarle; Sæther, Bernt-Erik; Engen, Steinar; Swenson, Jon E.; Sandegren, Finn. (1999) Harvesting strategies for conserving minimum viable populations based on World Conservation Union criteria: brown bears in Norway. Proceedings of the Royal Society of London. Biological Sciences
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Lande, Russell. (1999) Finite metapopulation models with density-dependent migration and stochastic local dynamics. Proceedings of the Royal Society of Edinburgh Section B
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (1999) Spatial scale of population synchrony : environmental correlation versus dispersal and density regulation. The American Naturalist
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Bakke, Øyvind; Swenson, Jon E.; Sandegren, Finn. (1998) Assessing the viability of Scandinavian brown bear, Ursus arctos, populations: the effects of uncertain parameter estimates. Oikos
    Academic article
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (1998) Extinction times in finite metapopulation models with stochastic local dynamics. Oikos
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (1998) Stochastic population models : some concepts, definitions and results. Oikos
    Academic article
  • Sæther, Bernt-Erik; Engen, Steinar; Islam, Aminul; McCleery, Robin; Perrins, Christopher. (1998) Environmental stochasticity and extinction risk in a population of a small songbird, the great tit. The American Naturalist
    Academic article
  • Engen, Steinar; Sæther, Bernt-Erik. (1998) Stochastic population models: Some concepts, definitions and results. Oikos
    Academic article
  • Tufto, Jarle; Engen, Steinar; Raybould, Alan F.; Hindar, Kjetil. (1998) Analysis of Genetic Structure and Dispersal Patterns in a Population of Sea Beet. Genetics
    Academic article
  • Engen, Steinar; Bakke, Øyvind; Islam, Aminul. (1998) Demographic and environmental stochasticity - concepts and definitions. Biometrics
    Academic article
  • Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (1997) Harvesting strategies for fluctuating populations based on uncertain population estimates. Journal of Theoretical Biology
    Academic article
  • Lande, Russell; Sæther, Bernt-Erik; Engen, Steinar. (1997) Threshold harvesting for sustainability of fluctuating resources. Ecology
    Academic article
  • Engen, Steinar; Lillegård, Magnar. (1997) Stochastic simulations conditioned on sufficient statistics. Biometrika
    Academic article
  • Tufto, Jarle; Engen, Steinar; Hindar, Kjetil. (1997) Stochastic dispersal processes in plant populations. Theoretical Population Biology
    Academic article
  • Tufto, Jarle; Engen, Steinar; Hindar, Kjetil. (1996) Inferring patterns of migration from gene frequencies under equilibrium conditions. Genetics
    Academic article

Books

  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2003) Stochastic population dynamics in ecology and conservation. Oxford University Press Oxford University Press
    Non-fiction book
  • Sæther, Bernt-Erik; Engen, Steinar. (2002) Including uncertainties in population viability analysis using Population Prediction Intervals. University of Chicago Press University of Chicago Press
    Textbook
  • Sæther, Bernt-Erik; Engen, Steinar. (1997) Forvaltning av små bestander : en teoretisk bakgrunn. Norsk institutt for naturforskning Norsk institutt for naturforskning
    Non-fiction book

Part of book/report

  • Sæther, Bernt-Erik; Engen, Steinar. (2021) Reproductive value and analyses of population dynamics of age-structured populations.
    Academic chapter/article/Conference paper
  • Bartzke, Gundula; May, Roelof Frans; Stokke, Sigbjørn; Røskaft, Eivin; Engen, Steinar. (2014) Comparative effects of power lines and roads on moose (Alces alces) habitat selection.
    Chapter
  • Sæther, Bernt-Erik; Engen, Steinar. (2010) Population Consequences of Climate Change.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2010) Population Analyses.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) Pattern of variation in avian population growth rates.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) The routes to extinction.
    Academic chapter/article/Conference paper
  • Lande, Russell; Engen, Steinar; Sæther, Bernt-Erik. (2003) Wildlife Population Growth R.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) Wildlife Population Growth Rates.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2003) Macroecology.
    Academic chapter/article/Conference paper
  • Sæther, Bernt-Erik; Engen, Steinar. (2002) Including stochasticity in population viability analysis.
    Academic chapter/article/Conference paper
  • Lande, Russell; Sæther, Bernt-Erik; Engen, Steinar. (2001) Sustainable exploitation of fluctuation populations.
    Academic chapter/article/Conference paper

Report

  • Solbu, Erik Blystad; Engen, Steinar; Diserud, Ola Håvard; Sæther, Bernt-Erik. (2015) Modelling and statistical analysis of demographic and environmental changes in populations and communities. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
    Doctoral dissertation
  • Bjørkvoll, Eirin Marie; Aanes, Sondre; Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Beaked redfish and golden redfish: Estimating abundances at age and population dynamical parameters by fitting a stochastic population model to abundance data within a Bayesian framework. ICES Arctic Fisheries Working Group ICES Arctic Fisheries Working Group
    Report
  • Sæther, Bernt-Erik; Engen, Steinar; Persson, J.; Brøseth, Henrik; Landa, Arild; Willebrand, T.. (2003) Levedyktighetsanalyser av skandinavisk jerv. NINA Fagrapport NINA Fagrapport
    Report
  • Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar; Jerstad, Kurt; Røstad, Ole Wiggo; Skåtan, Jon Erling. (1999) Populasjonsdynamikken til fossekall-bestanden i Lygnavassdraget. Direktoratet for naturforvaltning Direktoratet for naturforvaltning
    Report
  • Sæther, Bernt-Erik; Engen, Steinar; Swenson, Jon; Bakke, Øyvind; Sandegren, Finn. (1997) Levedyktighetsanalyser av skandinavisk brunbjørn. Norsk institutt for naturforskning Norsk institutt for naturforskning
    Report

Outreach

2024

  • Academic lecture
    Lee, Aline Magdalena; Martin, Ellen Claire; Bjørkås, Ragnhild; Marquez, Jonatan Fredricson; Herfindal, Ivar; Hansen, Brage Bremset. (2024) Does life history influence population synchrony?. International Statistical Ecology Conference 2024 , Swansea 2024-07-15 - 2024-07-19

2020

  • Academic lecture
    Herfindal, Ivar; Lee, Aline Magdalena; Myhre, Ane Marlene; Markussen, Stine Svalheim; Engen, Steinar; Solberg, Erling Johan. (2020) Decomposing demographic contribution to the effective population size. 7th Evolutionary Demography Society annual meeting , Røros 2020-10-07 - 2020-10-10
  • Academic lecture
    Marquez, Jonatan Fredricson; Lee, Aline Magdalena; Engen, Steinar; Aanes, Sondre; Salthaug, Are; Sæther, Bernt-Erik. (2020) Age-structure and spatial autocorrelation in marine fish populations. Festival of ecology , Online 2020-12-14 - 2020-12-18
  • Academic lecture
    Peeters, Bart; Grøtan, Vidar; Gamelon, Marlène; Veiberg, Vebjørn; Lee, Aline Magdalena; Fryxell, John M. (2020) Climate-density interactions and the stabilizing effects of harvesting on population dynamics. Evolutionary Demography Society’s 7th Annual Meeting 2020-10-06 - 2020-10-11
  • Academic lecture
    Peeters, Bart; Grøtan, Vidar; Gamelon, Marlène; Veiberg, Vebjørn; Lee, Aline Magdalena; Fryxell, John M. (2020) Harvesting can increase population viability by modifying climate change effects. The fourth conference of the Nordic Society Oikos 2020-03-03 - 2020-03-05

2019

  • Academic lecture
    Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2019) Spatial covariation of competing species in a fluctuating environment. NØF conference 2019 , UiT Tromsø 2019-02-11 - 2019-02-12
  • Academic lecture
    Hansen, Brage Bremset; Peeters, Bart; Gamelon, Marlène; Lee, Aline Magdalena; Veiberg, Vebjørn; Albon, Steve D.. (2019) Reduced extinction risk by worsening climate and increased harvest: the role of density dependence. Arctic Ungulate Conference , Jokkmokk 2019-08-12 - 2019-08-16

2018

  • Poster
    Marquez, Jonatan Fredricson; Lee, Aline Magdalena; Aanes, Sondre; Engen, Steinar; Sæther, Bernt-Erik. (2018) Covariation between life-history traits and spatial scaling in marine fish populations. OIKOS 2018 , Trondheim 2018-02-19 - 2018-02-22
  • Academic lecture
    Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2018) Spatial covariation of competing species in a fluctuating environment. ISEC 2018 - 6th Biennial International Statistical Ecology Conference , St. Andrews, Skottland 2018-07-02 - 2018-07-06
  • Academic lecture
    Lee, Aline Magdalena; Sæther, Bernt-Erik; Markussen, Stine Svalheim; Engen, Steinar. (2018) Do autocorrelations in individual reproductive success affect estimates of extinction risk?. OIKOS 2018 , Trondheim 2018-02-20 - 2018-02-22
  • Academic lecture
    Bellier, Edwige; Sæther, Bernt-Erik; Engen, Steinar. (2018) Sustainable harvest strategies of predators and preys in a fluctuating environment. Ecological Society of American Annual Meeting 2018 , New Orleans 2018-08-05 - 2018-08-10
  • Poster
    Myhre, Ane Marlene; Engen, Steinar; Sæther, Bernt-Erik. (2018) Effective population size of density-dependent populations. Oikos 2018 , Trondheim 2018-02-19 - 2018-02-22
  • Academic lecture
    Diserud, Ola Håvard; Solbu, Erik Blystad; Kålås, John Atle; Engen, Steinar. (2018) How can heterogeneity among species affect community dynamics - Norwegian bird communities as a case study. Oikos 2018 , Trondheim 2018-02-19 - 2018-02-22
  • Academic lecture
    Vindenes, Yngvild; Engen, Steinar. (2018) A simple formula for the complex effects of individual heterogeneity on stochastic population dynamics: the role of temporal autocorrelation. 2018 Nordic Oikos meeting , Trondheim 2018-02-20 - 2018-02-22
  • Academic lecture
    Vindenes, Yngvild; Engen, Steinar. (2018) A simple formula for the complex effects of individual heterogeneity. Annual meeting Evolutionary Demography Society (EvoDemos) 2018 , Lyon 2018-01-08 - 2018-01-10

2017

  • Poster
    Kvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Hagen, Ingerid Julie; Rønning, Bernt; Pärn, Henrik. (2017) Reversal of response to artificial selection on body size in a wild passerine. The 2017 Congress of the European Society for Evolutionary Biology 2017-08-20 - 2017-08-25
  • Academic lecture
    Kvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Hagen, Ingerid Julie; Rønning, Bernt; Pärn, Henrik. (2017) Reversal of response to artificial selection on body size in a wild passerine bird. Hole-Nesting Bird Conference 2017 2017-10-30 - 2017-11-02

2015

  • Poster
    Kvalnes, Thomas; Sæther, Bernt-Erik; Haanes, Hallvard; Røed, Knut; Engen, Steinar; Solberg, Erling Johan. (2015) Harvest-induced phenotypic selection in an island moose Alces alces population. Congress of the European Society for Evolutionary Biology (ESEB) 2015 , University of Lausanne 2015-08-10 - 2015-08-14
  • Academic lecture
    Kvalnes, Thomas; Ringsby, Thor Harald; Jensen, Henrik; Engen, Steinar; Sæther, Bernt-Erik. (2015) Is there an optimal body size? Lessons from an artificial selection experiment. Annual Conference of the Centre for Biodiversity Dynamics (CBD) , Trondheim 2015-01-21 - 2015-01-21

2014

  • Academic lecture
    Kvalnes, Thomas; Engen, Steinar; Sæther, Bernt-Erik. (2014) Estimating phenotypic selection in age-structured populations. Evolution 2014 , Raleigh 2014-06-20 - 2014-06-24

2013

  • Academic lecture
    Kvalnes, Thomas; Sæther, Bernt-Erik; Engen, Steinar; Jensen, Henrik; Haanes, Hallvard; Solberg, Erling Johan. (2013) Natural selection in age-structured populations. Centre for Biodiversity Dynamics (CBD) Opening Conference , NTNU, Trondheim 2013-10-14 - 2013-10-16
  • Academic lecture
    Kvalnes, Thomas; Engen, Steinar; Sæther, Bernt-Erik; Jensen, Henrik. (2013) Estimating fluctuating selection in age-structured populations. XIV Congress of the European Society for Evolutionary Biology , Lisboa 2013-08-19 - 2013-08-24
  • Academic lecture
    Pol, Martijn Van de; Vindenes, Yngvild; Sæther, Bernt-Erik; Engen, Steinar; Ens, Bruno J; Oosterbeek, Kees. (2013) Effects of climate change on stochastic demography in a population of Eurasian Oystercatchers. British Ornithologists' Union annual conference 2013 , Leicester 2013-03-26 - 2013-03-28
  • Academic lecture
    Bjørkvoll, Eirin Marie; Lee, Aline Magdalena; Hansen, Brage Bremset; Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar. (2013) Svalbard Reindeer. Integrated population modeling. Bayesian population analysis using WinBUGS , Sempach 2013-08-12 - 2013-08-16

2012

  • Academic lecture
    Hindar, Kjetil; Karlsson, Sten; Diserud, Ola Håvard; Engen, Steinar; Glover, Kevin; Skaala, Øystein. (2012) Knowledge Platform - Quantifying Genetic Effects of Escaped Farmed Salmon on Wild Salmon (QuantEscape). 1st International Conference on Integrative Salmonid Biology , Oslo 2012-06-17 - 2012-06-20
  • Academic lecture
    Jensen, Henrik; Hagen, Ingerid Julie; Kvalnes, Thomas; Billing, Anna Maria; Steinsland, Ingelin; Engen, Steinar. (2012) "Experimental evolution" and high-density SNP-genotyping in house sparrows. Seminar at Molecular Ecology and Evolution Lab, Lund University , Lund 2012-03-01 - 2012-03-01

2011

  • Academic lecture
    Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2011) Stochastic integral projection models for finite populations: Key population parameters and consequences for extinction risk. 96th annual meeting of the Ecological Society of America , Austin, Texas 2011-08-07 - 2011-08-12
  • Poster
    Vindenes, Yngvild; Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2011) Fixation of slightly beneficial alleles in finite-sized structured populations: Effects of life history. 13th Congress of the European Society for Evolutionary Biology , Tübingen 2011-08-20 - 2011-08-25
  • Academic lecture
    Sandvik, Hanno; Sæther, Bernt-Erik; Holmern, Tomas; Tufto, Jarle; Engen, Steinar. (2011) Quantifying risks and effects: the Norwegian classification system for alien species. XIth International Conference on the Ecology and Management of Alien Plant Invasions , Szombathely 2011-08-30 - 2011-09-03
  • Academic lecture
    Bjørkvoll, Eirin Marie; Grøtan, Vidar; Aanes, Sondre; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Stochastic population dynamics of beaked redfish (Sebastes mentella). PhD conference , Trondheim 2011-11-10 - 2011-11-10
  • Academic lecture
    Bjørkvoll, Eirin Marie; Aanes, Sondre; Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Assessment of beaked redfish: Fitting a stochastic population model within a Bayesian framework. Assessment forum , Bergen 2011-11-08 - 2011-11-08
  • Academic lecture
    Bjørkvoll, Eirin Marie; Grøtan, Vidar; Aanes, Sondre; Sæther, Bernt-Erik; Engen, Steinar; Aanes, Ronny. (2011) Stochastic population dynamics of beaked redfish (Sebastes mentella). ICES Annual Science Conference , Gdansk 2011-09-19 - 2011-09-23
  • Academic lecture
    Grøtan, Vidar; Engen, Steinar. (2011) Inference for spatial processes based on areal unit data. BES Annual Meeting , Sheffield 2011-09-12 - 2011-09-14

2010

  • Academic lecture
    Holmern, Tomas; Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar. (2010) Stokastisk modellering - ny svarteliste. Spredning av introduserte trær, skoglevende insekter og patogen sopp i tid og rom: case studier, effekter og metoder , Bergen 2010-02-18 - 2010-02-18
  • Academic lecture
    Grøtan, Vidar; Engen, Steinar; Sæther, Bernt-Erik. (2010) A parametric approach for estimating the similarity of communities. Sustainable Conservation: Bridging the gap between disciplines , Trondheim 2010-03-15 - 2010-03-18
  • Academic lecture
    Holmern, Tomas; Sæther, Bernt-Erik; Tufto, Jarle; Engen, Steinar. (2010) Forslag til et kvantitativt klassifiseringssystem for risikovurdering av fremmede arter: Et kort sammendrag for DN møte 21 januar 2010. Prosjektgruppen fremmede organimser under Nasjonalt program for kartlegging og overvåkning av biologisk mangfold - Prioriteringer for 2010 og videre fremover , Trondheim 2010-01-21 - 2010-01-21
  • Lecture
    Nybø, Signe; Certain, Gregoire; Skarpaas, Olav; Bjerke, Jarle W.; Framstad, Erik; Lindholm, Markus. (2010) The Nature Index: A new method to integrate expert knowledge and data on species to measure state and trends of ecosystems and across ecosystems. Convention on Biological Diversity, Conference of the Parties, COP10 , Nagoya 2010-10-18 - 2010-10-29

2009

  • Academic lecture
    Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2009) Mating System and Sex Ratio Affect Extinction Risk in a Stochastic Model. The 10th International Congress of Ecology , Brisbane 2009-08-16 - 2009-08-21
  • Academic lecture
    Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2009) Effects of demographic heterogeneity in life histories on estimation of extinction risk. INTECOL 2009 -Ecology in a Changing Climate , Brisbane 2009-08-16 - 2009-08-21

2008

  • Academic lecture
    Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2008) Individual heterogeneity in vital parameters and population viability. ESA Annual Meeting , Milwaukee, Wisconsin 2008-08-03 - 2009-08-08
  • Academic lecture
    Grøtan, Vidar; Sæther, Bernt-Erik; Lillegård, Magnar; Engen, Steinar. (2008) Predicting the distribution of future population fluctuations. Ecological Society of America Annual Meeting , Milwaukee 2008-08-02 - 2008-08-08
  • Academic lecture
    Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2008) Effects of mating system and sex ratio on population dynamics. The Ecological Society of America 93rd Annual Meeting , Milwaukee 2008-08-03 - 2008-08-08

2007

  • Poster
    Lee, Aline Magdalena; Engen, Steinar; Sæther, Bernt-Erik. (2007) Understanding Mating Systems: A Mathematical Model of the Pair Formation Process. 11th Congress of the European Society for Evolutionary Biology , Uppsala 2007-08-20 - 2007-08-25
  • Poster
    Vindenes, Yngvild; Engen, Steinar; Sæther, Bernt-Erik. (2007) Effective size of fluctuating heterogeneous populations. ESEB congress 2007 , Uppsala 2007-08-20 - 2007-08-25

2005

  • Academic lecture
    Engen, Steinar. (2005) Stochastic population models in ecology and conservarion. BIOECON Conferance , Kings College, Cambridge 2005-09-19 - 2005-09-21
  • Academic lecture
    Engen, Steinar. (2005) Genetic drift in age-structured populations. Ukentlige seminarer , Oslo 2005-06-03 - 2005-06-03
  • Academic lecture
    Engen, Steinar. (2005) Stochastic population dynamics in ecology and conservation. Nordic Biometric Conference , Oslo 2005-06-03 - 2005-06-04
  • Poster
    Grøtan, Vidar; Sæther, Bernt-Erik; Engen, Steinar; Solberg, Erling Johan; Linnell, John D. C.; Andersen, Reidar. (2005) Climate causes large scale spatial synchrony in population fluctuations of a temperate herbivore. The Ecological Society of America Annual Meeting , Montreal 2005-08-08 - 2005-08-12

2004

  • Academic lecture
    Engen, Steinar. (2004) Predictions in age-structured populations in a fluctuating environment. Ecological Society of America, 2004 annual meeting , Portland, Oregon 2004-08-01 - 2004-08-06

2002

  • Programme participation
    Ringsby, Thor Harald; Jensen, Henrik; Sæther, Bernt-Erik; Engen, Steinar. (2002) Med spurven som modell. NRK, Schrødingers katt NRK, Schrødingers katt [TV] 2002-09-12

1999

  • Academic lecture
    Engen, Steinar; Sæther, Bernt-Erik. (1999) Estimating risk of extinction in small passerines. Population viability analysis , San Diego, 13.-16. mars
  • Academic lecture
    Engen, Steinar; Lande, Russell; Sæther, Bernt-Erik. (1999) Sustainable exploitation of fluctuating populations. Concervation of expoited species. , London, England, 9.-12. desember

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