Testing theoretical metapopulation conditions with genotypic data from Boreal Chorus Frogs (Pseudacris maculata)
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Abstract
The metapopulation concept has far-reaching implications in ecology and conservation biology. Hanski’s criteria operationally define metapopulations, yet testing them is hindered by logistical and financial constraints inherent to the collection of long-term demographic data. Hence, ecologists and conservationists often assume metapopulation existence for dispersal-limited species that occupy patchy habitats. To advance understanding of metapopulation theory and improve conservation of metapopulations, we used population and landscape genetic tools to develop a methodological framework for evaluating Hanski’s criteria. We used genotypic data (11 microsatellite loci) from a purported metapopulation of Boreal Chorus Frogs (Pseudacris maculata (Agassiz, 1850)) in Colorado, U.S.A., to test Hanski’s four criteria. We found support for each criterion: (1) significant genetic differentiation between wetlands, suggesting distinct breeding populations; (2) wetlands had small effective population sizes and recent bottlenecks, suggesting populations do not experience long-term persistence; (3) population graphs provided evidence of gene flow between patches, indicating potential for recolonization; and (4) multiscale bottleneck analyses suggest asynchrony, indicating that simultaneous extinction of all populations was unlikely. Our methodological framework provides a logistically and financially feasible alternative to long-term demographic data for identifying amphibian metapopulations.
Suggested Citation
Billerman, S.M., Jesmer, B., Watts, A.G., Schlichting, P., Fortin, M., Funk, W., Hapeman, P., Muths, E., Murphy, M., 2019, Testing theoretical metapopulation conditions with genotypic data from Boreal Chorus Frogs (Pseudacris maculata): Canadian Journal of Zoology, v. 97, no. 11, p. 1042-1053, https://doi.org/10.1139/cjz-2018-0275.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Testing theoretical metapopulation conditions with genotypic data from Boreal Chorus Frogs (Pseudacris maculata) |
| Series title | Canadian Journal of Zoology |
| DOI | 10.1139/cjz-2018-0275 |
| Volume | 97 |
| Issue | 11 |
| Year Published | 2019 |
| Language | English |
| Publisher | Canadian Science Publishing |
| Contributing office(s) | Fort Collins Science Center |
| Description | 12 p. |
| First page | 1042 |
| Last page | 1053 |
| Country | United States |
| State | Colorado |