Effects of urbanization on population genetic structure of western gray squirrels
| Autor: | Elizabeth Torres, Andres Aguilar, Christopher DeMarco, Daniel S. Cooper, Alan E. Muchlinski |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine education.field_of_study Genetic diversity Population Biodiversity Biology 010603 evolutionary biology 01 natural sciences Gene flow 03 medical and health sciences 030104 developmental biology Genetic drift Effective population size Evolutionary biology Genetic structure Genetics Microsatellite education Ecology Evolution Behavior and Systematics |
| Zdroj: | Conservation Genetics. 22:67-81 |
| ISSN: | 1572-9737 1566-0621 |
| DOI: | 10.1007/s10592-020-01318-x |
| Popis: | Habitat loss and fragmentation due to urbanization are key contributors to the decline of biodiversity. The consequence of these factors is small, isolated populations that are more susceptible to deterministic and stochastic threats of extinction. There is an increasing trend in population reductions of the western gray squirrel (Sciurus griseus) in urban areas of Southern California, USA. Griffith Park (GP) contains one of the last urban populations of western gray squirrels (WGS) present in Los Angeles. We used hairtubes to collect hair of WGS at 3 sites within GP and at 5 sites outside of GP. Twelve microsatellite loci and a 550 bp segment of the mitochondrial control region were used to examine the genetic diversity within GP and among all sample sites, and to determine gene flow within GP. Results revealed subpopulations within GP have low levels of allelic richness at microsatellite loci (AR = 2.28–2.53) and low mitochondrial haplotype diversity (HD = 0.000–0.271). We found significant genetic differentiation (FST = 0.109–0.156, p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink