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Caribou and Reindeer Migrations in the Changing Arctic
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Caribou and reindeer, Rangifer tarandus, are the most numerous and socio-ecologically important terrestrial species in the Arctic. Their migrations are directly and indirectly affected by the seasonal...
Continental Synchrony and Local Responses: Climatic Effects on Spatiotemporal Patterns of Calving in a Social Ungulate
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Warming temperatures and advancing spring are affecting annual snow and ice cycles, as well as plant phenology, across the Arctic and boreal regions. These changes may be linked to observed population...
Critical Summer Foraging Tradeoffs in a Subarctic Ungulate
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Summer diets are crucial for large herbivores in the subarctic and are affected by weather, harassment from insects and a variety of environmental changes linked to climate. Yet, understanding...
Denitrification Potential of Surface Soils of Constructed Wetlands in Newtown Creek, an Urban Superfund Site
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Denitrification, the anaerobic microbial conversion of nitrate (NO 3 −), a common water pollutant, to nitrogen (N) gases, is often high in the soil of natural wetlands. In areas where natural wetlands...
Increasing Fire Frequency and Severity Will Increase Habitat Loss for a Boreal Forest Indicator Species
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Climate change will lead to more frequent and more severe fires in some areas of boreal forests, affecting the distribution and availability of late-successional forest communities. These forest...
Seasonal Patterns of Spatial Fidelity and Temporal Consistency in the Distribution and Movements of a Migratory Ungulate
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How animals use their range can have physiological, ecological, and demographic repercussions, as well as impact management decisions, species conservation, and human society. Fidelity, the...
Sublethal Effects of Parasitism on Ruminants Can Have Cascading Consequences for Ecosystems
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Parasitic infections are common, but how they shape ecosystem-level processes is understudied. Using a mathematical model and meta-analysis, we explored the potential for helminth parasites to trigger...
Tactical Departures and Strategic Arrivals: Divergent Effects of Climate and Weather on Caribou Spring Migrations
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A 2019 academic paper that looks at factors affecting caribou migration timing and speed. The paper concludes that later arrival at calving grounds might indicate that females are in worse condition...
The Boreal-Arctic Wetland and Lake Dataset
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Here we present the Boreal–Arctic Wetland and Lake Dataset (BAWLD), a land cover dataset based on an expert assessment, extrapolated using random forest modelling from available spatial datasets of...
The Role of Weather and Long-Term Prey Dynamics as Drivers of Wolf Population Dynamics in a Multi-Prey System
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As climate change accelerates in northern latitudes, there is an increasing need to understand the role of climate in influencing predator-prey systems. We investigated wolf population dynamics and...
Video - Managing Soil Carbon in Temperate & Boreal Ecosystems
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This presentation discusses managing soil carbon in temperate and boreal ecosystems.
Video - Nutritional Mechanism Impairs Caribou Pregnancy in the Alberta Oil Sands
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At the 14th North American Caribou Workshop held in September 2012, Jonah Keim presented results of research looking into the impact of nutrition on caribou in the Alberta oil sands region.