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Forecasting Spatio-Temporal Vegetation Changes in the Mealy Mountains Using a Cellular Automata-Markov Chain Hybrid Model

Abstract: Sub arctic temperatures are expected to increase by approximately 4 deg C by 2050 These changes are having impacts on vegetation patterns in arctic and sub arctic environments particularly along transition areas between forested and tundra ecosystems Using multi temporal satellite imagery in combination with topographic variables the changes in vegetation patterns from 1983 to 2008 were explored in a small diverse region of the Mealy Mountains Labrador Bayesian probabilities were created for each land cover class with topographic variables...

Purpose: The purpose of this study is to attain a better understanding of the effects of climate and topography on vegetation patterns distributions and movements It expands on the body of research devoted to spatial temporal modelling of vegetation In a broader spectrum the research complements the goals of the International Polar Year IPY research 2005 The objectives of this study are to 1 Create vegetation maps of historical land cover distributions 2 Understand how land cover has changed given past...

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Climate change and forest ecosystem monitoring initiative. Please contact Andrew Trant: atrant@uvic.ca for details.

Abstract: A series of climate change and forest ecosystem modules with the Labrador Innu Environmental Guardians was conducted around Sheshatshiu and Kamistastin The modules were run through Saint Mary s University under the direction of Dr Trudy Sable and we co taught by Dr Andrew Trant and Dr John Jacobs ...

Purpose: The purpose of these modules were to combine ecological and indigenous approaches to learning and monitoring in the context of climate change and forest ecosystems The content of these modules was co developed with the Innu Nation and the Innu Environmental Guardian Program ...

Fire and treeline dynamics in north Yukon Territory

Abstract: Climate change is expected to alter patterns of disturbance which in turn may drive future ecosystem change This interaction may be particularly important in sub arctic regions due to rapid climate change and frequent fire With increased temperatures in northern ecosystems there is an assumption that typically southern species will shift their distributions northwards In the northwestern boreal forest however the bottleneck to forest establishment is recruitment which is strongly mediated by reproductive output and disturbance effects This research focused...

Purpose: Our purpose was to investigate the effects of climate induced changes in the fire regime on black spruce treeline forest dynamics ...

Black spruce regeneration at the treeline ecotone: synergistic impacts of climate change and caribou activity

Abstract: Tree regeneration at treeline is often inhibited by harsh climatic conditions and ecological constraints such as the presence of a continuous lichen cover The objective of this study was to verify if recent climate warming and increased caribou Rangifer tarandus L activity which destroys the lichen cover could act synergistically to increase black spruce Picea mariana Mill B S P regeneration We collected cones produced in 2006 and 2007 to compare seed viability with data from 1989 to 1995 We...

Purpose: Evaluate if caribou and climate change can have a synergistic impact on black spruce regeneration...

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