Effect of compensatory immigration on the genetic structure of coyotes
| Autor: | John C. Kilgo, Olin E. Rhodes, Elizabeth M. Kierepka |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine education.field_of_study Ecology media_common.quotation_subject Immigration Population Wildlife Population genetics Biology 010603 evolutionary biology 01 natural sciences 03 medical and health sciences 030104 developmental biology Genetic structure General Earth and Planetary Sciences Biological dispersal Philopatry Species richness education Ecology Evolution Behavior and Systematics Nature and Landscape Conservation General Environmental Science media_common |
| Zdroj: | The Journal of Wildlife Management. 81:1394-1407 |
| ISSN: | 1937-2817 0022-541X |
| DOI: | 10.1002/jwmg.21320 |
| Popis: | Despite efforts to reduce their effects on livestock and native ungulates within the southeastern United States, coyotes (Canis latrans) can recover from control programs. It is unknown how coyotes compensate for high mortality following trapping, so there is great interest to identify methods that can provide insight into coyote response to intensive trapping. To investigate if population genetic tools can decipher how coyotes recover from intensive trapping, we combined an empirical test of how genetic differentiation, diversity, and familial structure changed following trapping on the Savannah River Site (SRS), South Carolina, USA, with spatially explicit genetic simulations. The pre- and post-trapping periods had similar genetic diversities and were not genetically differentiated as expected by either compensatory reproduction or immigration from a single genetic source. The post-trapping coyote populations exhibited weaker signatures of philopatry with little evidence for increased dispersal distances of young coyotes, which suggests immigration caused a decrease in familial structure. Our simulations indicated that spatial autocorrelation coefficients and observed heterozygosities change as immigration increases, whereas population differentiation, allelic richness, and displacement distances do not. Collectively, our results suggest that coyotes recover from intensive trapping via reproduction and immigration, which likely makes preventing compensation difficult. Monitoring post-trapping populations may offer more insight into maximizing the effectiveness of control efforts, and based on our simulations, population genetics can provide critical information about the amount of compensatory immigration following trapping. © 2017 The Wildlife Society. |
| Databáze: | OpenAIRE |
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