Genetic Methods for Determining Racial Composition of Canada Goose Harvests
| Autor: | Jennifer A. Warrillow, Harold H. Prince, Kim T. Scribner, Rainy L. Inman, Catherine S. Flegel, David R. Luukkonen, James O. Leafloor |
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| Rok vydání: | 2003 |
| Předmět: |
education.field_of_study
Ecology business.operation biology Population Subspecies Anatidae biology.organism_classification Branta Canada goose General Earth and Planetary Sciences Microsatellite Temporal scales education business Ecology Evolution Behavior and Systematics Nature and Landscape Conservation General Environmental Science Specific identification |
| Zdroj: | The Journal of Wildlife Management. 67:122 |
| ISSN: | 0022-541X |
| DOI: | 10.2307/3803068 |
| Popis: | We used molecular genetic markers and established statistical methods to estimate proportional contributions of subspecies and breeding populations to admixed wintering and migratory Canada goose (Branta canadensis) harvests. We compared harvest estimates across spatially and temporally explicit sampling intervals. We characterized 997 individuals from breeding populations in Canada representing interior Canada geese (B. c. interior; n = 4) and in Michigan representing giant Canada geese (B. c. maxima; n = 5) for 5 microsatellite loci. We determined that microsatellite loci coupled with maximum-likelihood methods provided accurate and precise proportional contribution estimates of samples from each subspecies and population. We first conducted simulation analyses and derived harvest estimates for unknown individuals representing a range of plausible harvest mixture scenarios using blind tests. Based on harvested individuals collected over a 4-year period (1993-1996), we found that the racial composition of Canada goose harvests varied significantly among years and across early, regular, and late seasons within a year. Harvest composition varied spatially between management areas in different regions and between managed and private lands in close ( |
| Databáze: | OpenAIRE |
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