EARLY HEARING DETECTION AND INTERVENTION VIRTUAL CONFERENCE
MARCH 2-5, 2021
(Virtually the same conference, without elevators, airplane tickets, or hotel room keys)
5/24/2018 | 9:00 AM - 9:15 AM | LANDSCAPE GENETICS REVEALS DIFFERING EFFECTS OF URBANIZATION FOR TWO SYMPATRIC POOL-BREEDING AMPHIBIAN SPECIES | 330 A
LANDSCAPE GENETICS REVEALS DIFFERING EFFECTS OF URBANIZATION FOR TWO SYMPATRIC POOL-BREEDING AMPHIBIAN SPECIES
Landscape changes associated with urbanization can have detrimental effects on wetland species. For instance, vernal pool amphibians, who undergo seasonal migrations and occasional dispersal among ephemeral wetlands are expected to experience harmful effects of urbanization when individual movements are inhibited. We paired information on landscape characteristics with microsatellite genetic data from two vernal pool amphibian species to investigate how various natural and anthropogenic landscape features affect connectivity among populations. Egg or larval wood frogs (n = 2439 from 87 sites) and spotted salamanders (n = 2413 from 90 sites) were collected from vernal pools throughout central and southern Maine. We identified differences in broadscale patterns of genetic diversity and structure between the two species. For both species, a population’s degree of isolation was positively correlated with amounts of nearby urbanization and genetic diversity was found to be lower for sites experiencing high degrees of isolation. Resistance surface modeling indicated both natural and anthropogenic landscape features were found to reduce inter-population connectivity although the effects varied between the species. These results will help to inform vernal pool amphibian conservation as human populations continue to grow and concentrate in urban areas.
- Genetics
- Urban
- Evo-eco Dynamics
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Presenters/Authors
Jared Homola
(), University of Maine, jared.homola@maine.edu;
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Cynthia Loftin
(), U.S. Geological Survey, Maine Cooperative Fish and Wildlife Research Unit, cynthia.loftin@maine.edu;
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Michael Kinnison
(), University of Maine, mkinnison@maine.edu;
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