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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...
Improving the Fire Weather Index System for Peatlands using Peat-Specific Hydrological Input Data
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The Canadian Fire Weather Index (FWI) system, even though originally developed and calibrated for an upland Jack pine forest, is used globally to estimate fire danger for any fire environment. However...
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...
Jonas Mortelmans
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PhD Researcher (Earth and Environmental Sciences)
Oil Sands Remediation – What’s the (end) Point?
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Remediation professionals, regulators, industry and stakeholders must begin discussions to resolve uncertainty around oil sands COPCs so that efforts can be focused on solving the “real” problem
Phase II Assessments and Phase III Remediation: A Brief History
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In this paper, we review the development of Phase II Assessments and Phase III Remediation science over the last thirty years: what aspects have improved, and what aspects have not improved.
Satellite Determination of Peatland Water Table Temporal Dynamics by Localizing Representative Pixels of A SWIR-Based Moisture Index
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The OPtical TRApezoid Model (OPTRAM) is a physically-based approach for remote soil moisture estimation. OPTRAM is based on the response of short-wave infrared (SWIR) reflectance to vegetation water...
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...
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...