Maxime TremblayMTremblay

Esther Lévesque
Codirector: Daniel Fortier

Primary Address
Department of Environmental Science
Léon-Provencher building, local 3416
Université du Québec à Trois-Rivières (UQTR)
3351 Des Forges bld
Trois-Rivières, Qc, Canada
G9A 5H7



Project Title

Impacts of climate changes on the environmental components responsible for the distribution, the growth and the reproductive status of the erected shrub Salix richardsonii in the High Arctic


Description of the project research

Shrub expansion is a large phenomenon observed in various Arctic regions. Despite the implications of a change in the structure of ecosystems and the feedbacks associated, increase of erected shrubs in the High Arctic is under documented. The present study will tend to evaluate the impacts of the recent climate and hydrological changes that occur at Bylot Island, Nunavut, on the distribution and the growth of Salix richardsonii. The distribution of the specie will be assess on the base of satellite images analysis and will be then classified between the different habitats occupied. The habitat of the selected populations will be characterized according to the biotic and abiotic components associated with the presence of S. richardsonii. The biological characteristics of the populations will be measured through morphologic, dendrochronological and reproductive observations. Plots of 30 m2 will be establish in different sectors to implement a reference for a long-term survey of shrub expansion. Thus, the study will tent to demonstrate how climate change affect shrub expansion and what are the impacts on ecosystems.

Shrub expansion, Climate changes, Vegetation ecology, Permafrost, Hydrology



Scholarships and other awards

2012: NSERC Undergraduate Student Research Award (NSERC-USRA)
2012: Modélisation de la complexité de la forêt (MCF) (undergraduate)
2011: NSERC Undergraduate Student Research Award (NSERC-USRA)



Centre d’études nordiques (CEN)








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