2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/24/2018 | 10:15 AM - 10:30 AM | THE BIOTIC RESPONSE TO A CHANGING CLIMATE: TRENDS IN ARCTIC FRESHWATER BIODIVERSITY ACROSS NORTH AMERICA | 420 B
THE BIOTIC RESPONSE TO A CHANGING CLIMATE: TRENDS IN ARCTIC FRESHWATER BIODIVERSITY ACROSS NORTH AMERICA
Within North America, the effects of climate change have historically been more pronounced in the west, with more evidence of warming temperatures in Alaska and the Northwest Territories than along the eastern coast of Nunavut. Though records of increased temperatures and increased occurrence of permafrost degradation have been noted, widespread assessment of biotic responses to the changing climate have been lacking in North America. Assessment of trends across the North American Arctic presents the opportunity to assess biotic responses to different rates of warming (west to east), with relatively little interaction from anthropogenic effects compared to more developed regions of the circumpolar Arctic. Benthic invertebrate data indicated a sharper decline in biodiversity with increasing latitude in eastern North America than in the west, with generally higher alpha diversity in western stations. In contrast, diatom diversity was more closely linked to regional geology than latitude, and longitudinal trends were less evident. Through the assessment of multiple trophic groups in the North American Arctic, this paper aims to characterize the current status in freshwater biodiversity and evaluate the dominant drivers of community composition.
- Biodiversity
- Invertebrate
- Algae
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Presenters/Authors
Jennifer Lento
(), Canadian Rivers Institute, Department of Biology, University of New Brunswick, jlento@gmail.com;
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Christian Zimmerman
(), U.S. Geological Survey, Alaska Science Center, czimmerman@usgs.gov;
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Daniel Bogan
(), Alaska Center for Conservation Science at University of Alaska Anchorage, dlbogan@alaska.edu;
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Robert B. Brua
(), Environment and Climate Change Canada, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, bob.brua@canada.ca;
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Stephane Campeau
(), University of Quebec at Trois Rivieres, stephane.campeau@uqtr.ca;
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Krista Chin
(), Cumulative Impacts Monitoring Program - Government of the Northwest Territories, Yellowknife, Krista_Chin@gov.nt.ca;
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Joseph M. Culp
(), Environment and Climate Change Canada and Canadian Rivers Institute, Department of Biology, Wilfrid Laurier University, Waterloo, Ontario, Canada, N2L 3C5, joseph.culp@canada.ca;
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Jennie Knopp
(), Oceans North, jennie.knopp@yahoo.com;
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Sarah Laske
(), Alaska Cooperative Fish and Wildlife Research Unit, School of Fisheries and Ocean Sciences, University of Alaska Fairbanks, slaske@alaska.edu;
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Isabelle Lavoie
(), National Institute of Scientific Research - Quebec, ilavoie.bio@gmail.com;
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Brianna Levenstein
(), Canadian Rivers Institute, Department of Biology, University of New Brunwsick, brianna.levenstein@unb.ca;
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Heather Mariash
(), Environment and Climate Change Canada, heather.mariash@gmail.com;
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Michael Power
(), University of Waterloo, m3power@uwaterloo.ca;
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Milla Rautio
(), Université du Québec à Chicoutimi, Milla_Rautio@uqac.ca;
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Kathleen Rühland
(), Queen's University, ruhlandk@queensu.ca;
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Emilie Saulnier-Talbot
(), Université Laval, Québec, emiliest@hotmail.com;
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Rebecca Shaftel
(), Alaska Center for Conservation Science at University of Alaska Anchorage, rsshaftel@alaska.edu;
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John Smol
(), Queen's University, smolj@queensu.ca;
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Heidi Swanson
(), University of Waterloo, Canada, heidi.swanson@uwaterloo.ca;
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Matthew Whitman
(), Bureau of Land Management, USA, mwhitman@blm.gov;
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