107 Works

Tundra Nunavik: Matrix of trophic relations between species of Labrador and northern Quebec

Dominique Berteaux, Pascale Ropars & Nicolas Casajus
While most ecological studies focus on the impact of climate change on some populations or species, broader, ecosystem-based information is needed to better predict the future state of the Arctic. We therefore conducted a large-scale study aimed at modelling the vulnerability of tundra ecosystems to climate change. As part of this study, we gathered all known predator-prey relationships among mammal and bird species which distribution overlaps Labrador and the province of Quebec north of the...

Isotope characterization of ground ice on Bylot Island

Daniel Fortier, Stéphanie Coulombe & Denis Lacelle
Over the past decades, observations of buried glacier ice exposed in thaw-slump affected terrain of the Arctic indicate that considerable amounts of Pleistocene glacier ice survived the deglaciation and are still preserved in permafrost. In exposures, relict glacier ice and intrasedimental ice often coexist and look alike but their genesis is strikingly different. Identifying the origin of ground ice is required to model its spatial distribution and abundance in the landscape. This paper aims to...

Tundra Nunavik: Set of 27 bioclimate variables projected for the 21st century (2011-2040, 2041-2070 and 2071-2100) under 10 climate change scenarios for Labrador and northern Quebec

Dominique Berteaux, Nicolas Casajus & Pascale Ropars
While most ecological studies focus on the impact of climate change on some populations or species, broader, ecosystem-based information is needed to better predict the future state of the Arctic. We therefore conducted a large-scale study aimed at characterizing the vulnerability of tundra ecosystems to climate change through modelling. As part of this study, we obtained variables describing the potential climate of the province of Québec north of the 50th parallel during the 21st century...

Tundra Nunavik: Distribution (extent of occurrence) of birds and mammals of Labrador and northern Quebec for the period 1981-2010

Dominique Berteaux, Nicolas Berteaux & Pascale Ropars
While most ecological studies focus on the impact of climate change on some populations or species, broader, ecosystem-based information is needed to better predict the future state of the Arctic. We therefore conducted a large-scale study aimed at characterizing the vulnerability of tundra ecosystems to climate change through modelling. As part of this study, we obtained distributions of birds and mammals species of the province of Québec north of the 50th parallel during our baseline...

Tundra Nunavik: Potential distribution of birds and mammals of Labrador and northern Quebec projected for the 21st century (2011-2040, 2041-2070 and 2071-2100) under climate change scenarios

Dominique Berteaux, Nicolas Casajus & Pascale Ropars
While most ecological studies focus on the impact of climate change on some populations or species, broader, ecosystem-based information is needed to better predict the future state of the Arctic. We therefore conducted a large-scale study aimed at characterizing the vulnerability of tundra ecosystems to climate change through modelling. As part of this study, we built models to relate species distributions to climate variables and to project this relation under climate change scenarios to estimate...

Air and ground temperature, air humidity and site characterization data from the Canadian Shield tundra near Lac de Gras, Northwest Territories, Canada

Stephan Gruber, Nicholas Brown, Emilie Stewart-Jones, Kumari Karunaratne, Julia Riddick, Christian Peart, Rupesh Subedi & Steve Kokelj
These data were collected as a part of the Slave Province surficial materials and permafrost study (SPSMPS) which took place near the Ekati mine, north of Lac de Gras. Data comprise air and ground temperature measurements as well as detailed metadata describing surface and vegetation conditions at each site. Study plots measuring 15 m × 15 m were selected to represent different facets of the landscape. For each plot, up to four sub-plots were selected...

Drill logs, visible ice content and core photos from 2015 surficial drilling in the Canadian Shield tundra near Lac de Gras, Northwest Territories, Canada

Stephan Gruber, Nicholas Brown, Emilie Stewart-Jones, Kumari Karunaratne, Julia Riddick, Christian Peart, Rupesh Subedi & Steve Kokelj
These data were collected as a part of the Slave Province surficial materials and permafrost study (SPSMPS) which took place near the Ekati mine, north of Lac de Gras. Data comprise drill logs and core photos for 60 drill holes. A lightweight, low-water consumption diamond coring drill was used to obtain core samples. In some cases, material was too sandy to recover any material using the core barrel, so an auger bit was used instead...

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