2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/07/2017 | 9:45 AM - 10:00 AM | RISK AND RESILIENCE ON A DRYING LANDSCAPE: SIMULATING THE RESPONSE OF A DRYLAND AMPHIBIAN TO CHANGES IN SPATIAL AND TEMPORAL AVAILABILITY OF BREEDING HABITATS | 301B
RISK AND RESILIENCE ON A DRYING LANDSCAPE: SIMULATING THE RESPONSE OF A DRYLAND AMPHIBIAN TO CHANGES IN SPATIAL AND TEMPORAL AVAILABILITY OF BREEDING HABITATS
Amphibians are declining worldwide due to a collection of threats including disease, invasive species, and habitat loss. Climate change may exacerbate habitat loss by altering the availability or suitability of aquatic breeding habitat for many amphibians. We developed a spatially-explicit individual based model to simulate the response of the Arizona treefrog (Hyla wrightorum) to reductions in breeding habitat availability in an isolated portion of its range (southeastern Arizona, USA). We simulated landscapes of breeding habitats developed using historical satellite imagery, and we evaluated treefrog population sizes, recruitment, and individual movement patterns in response to a range of different spatiotemporal patterns of breeding habitat availability. We found that although population sizes were generally robust to small reductions in breeding habitat availability, greater reductions in breeding habitat resulted in a small number of isolated populations - a stark contrast to the metapopulation dynamics currently observed among these populations. Our findings help address a knowledge gap in our understanding of how this species may respond to changing spatiotemporal dynamics of breeding habitat availability, and they provide a foundation for evaluating management and conservation strategies for this species in the future.
- C02 Fish and Other Aquatic Vertebrates
- C15 Population Ecology
- C12 Conservation Ecology
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Presenters/Authors
Meryl C. Mims
(), Virginia Tech, mims@vt.edu;
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Julian Olden
(), University of Washington, olden@uw.edu;
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Josh Lawler
(), University of Washington, jlawler@uw.edu;
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