EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/23/2019 | 2:30 PM - 2:45 PM | LINKING THERMAL TOLERANCE TO GENE EXPRESSION IN ALPINE STONEFLIES IMPERILED BY CLIMATE CHANGE | 250 AB
LINKING THERMAL TOLERANCE TO GENE EXPRESSION IN ALPINE STONEFLIES IMPERILED BY CLIMATE CHANGE
Climate change is dramatically altering alpine stream ecosystems through the recession of glaciers and snowfields which alters downstream conditions. For species that are linked to meltwater habitats, there is a pressing need to understand how ecologically relevant phenotypes relate to habitat conditions as well as the genetic architecture underlying them. Nemourid stoneflies are common in alpine stream communities in the Rocky Mountains. Two nemourids, Lednia tumana and Lednia tetonica, are of particular conservation concern with L. tumana having been petitioned for listing under the U.S. Endangered Species Act due to climate-induced habitat loss. Here, we tested the upper thermal tolerance–critical thermal maximum (CTmax)—for multiple nemourid stonefly species and populations that reside in a variety of alpine stream types as defined by primary hydrological source (e.g., glacier, snowfield, or a subterranean rock glacier). For a subset of populations and specimens, we collected RNA-sequencing data to explore differences in gene expression between stoneflies at their CTmax and control specimens acclimated to 3°C. We found that temperature regime was a significant predictor of CTmax and identified population-specific differences in gene expression associated with thermal tolerance in these sensitive alpine stoneflies.
- Functional Ecology
- ClimateChange
- Temperature
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Presenters/Authors
Scott Hotaling
(), Washington State University, scott.hotaling@uky.edu;
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Alisha Shah
(), University of Montana, alishas0624@gmail.com;
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Kerry McGowan
(), Washington State University, kerry.mcgowan@wsu.edu;
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Lusha Tronstad
(), University of Wyoming, Wyoming Natural Diversity Database, tronstad@uwyo.edu;
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J. Joseph Giersch
(), USGS Northern Rocky Mountain Science Center, jgiersch@usgs.gov;
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Debra Finn
(), Missouri State University, dfinn@missouristate.edu;
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H. Arthur Woods
(), University of Montana, art.woods@umontana.edu;
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Michael Dillon
(), University of Wyoming, michael.dillon@uwyo.edu;
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Joanna Kelley
(), Washington State University, joanna.l.kelley@wsu.edu;
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