ECOSHRUB

Vegetation

Consequences of willow shrub expansion on recruitment of vascular plants

- Ph.D. project
We study the interactive effects of willow shrub expansion and herbivory on the recruitment phase of plants in alpine plant communities. We have sown seeds of 14 vascular plants (including trees, shrubs, dwarf shrubs, graminoids and forbs) into plots with and without vegetation removal and recorded seedling emergence and survival over three years in a low-alpine meadow, heath and willow shrub. We also investigate how the recruitment phase is linked to microclimate and plant traits. We aim to learn more about seedling recruitment in the alpine and tell which plants are winners and losers under shrub expansion. 
Time frame: Start 2013, end 2018.
Who is involved:
Kristin Odden Nystuen 
Bente Jessen Graae 
Håkon Holien


Effects of lichens on seedling recruitment 

- Master project
In this project we look at how species of lichens, common in the Dovre Mountains, affect germination and emergence of vascular plants. Despite of the large areas of lichens covered in Dovre, lichens are said to decline while vascular plants increase. We therefore want to investigate the chemical and physical properties of the lichens that might affect the micro site where the vascular plants establish. Do the lichens facilitate or inhibit germination? And is the effect of the lichens dependent on the vascular plants species?
Time frame: Start 2014, end June 2016.
Who is involved:
Kristine Sundsdal
Kristin Odden Nystuen 
Bente Jessen Graae 
Richard Strimbeck 

An experiment looking at seedling emergence within mats of different lichen species. Photo: Kristine Sundsdal

 


Shrub encroachment in alpine communities

- Master project
In this project we look at the effects of shrub enchroachment on the microclimate of three vegetation types: heath, meadow and willow. Do shrubs (height of vegetation, percentage cover of shrubs etc) have an effect on the microclimate. The effect of herbivory on the microclimate is also examined by means of exclosures.
Time frame: Start May 2015, end January 2016.
Who is involved:
Andreas Baele
Pieter de Frenne
Bente Jessen Graae 
Mia Vedel Sørensen


Floristic description of three alpine plant communities 

- Bachelor project

This project is a description of our study area in general and the flora, including vascular plants, bryophytes and lichens, in three plant communities with experimental plots used by other people in the group.
Time frame: Start July 2014, end May 2015
Who is involved:
Karl Andreas Johannessen
Kristin Odden Nystuen
Håkon Holien


Leaf trait characteristics in three alpine plant communities

- Bachelor project
The project describes and compares three alpine plant communities by looking at between-species and among-species variation in different plant traits.
Time frame: Start July 2014, end May 2015
Who is involved:
Simen Dille 
Kristin Odden Nystuen 
Håkon Holien 

 


The effects of microclimatic variations on the recruitment of plant species in arctic and alpine ecosystems

- Master project
In this project we look at the influence of microclimate on seedling recruitment. The main focus of the research is to answer the following research question: How does microclimate affect seedling recruitment in three representative alpine plant communities? In the field we made an inventory of the seedlings and measured the soil moisture, light availability and soil temperature. With this data we can look at the effects of microclimate on seedling recruitment.
Time frame: Start April 2016, end December 2016
Who is involved:
Nick Stam
Juul Limpens
Pieter De Frenne
Kristin Odden Nystuen

 

 


The effects of microclimatic variation on plant traits

- Master project
In this project we relate plant functional traits to the complex microclimate of the changing alpine tundra to predict adaptation of general and community specific plant species.
Time frame: Start April 2016, end December 2016
Who is involved:
Lars Uphus
Juul Limpens
Pieter De Frenne
Kristin Odden Nystuen