Genetic evidence of a recent successful colonization of introduced species on islands: Boa constrictor imperator on Cozumel Island
Por:
Vázquez-Domínguez E., Suárez-Atilano M., Booth W., González-Baca C., Cuarón A.D.
Publicada:
1 oct 2012
Resumen:
Only one study has described the population genetic structure of Boa constrictor imperator and only in a single naturally colonized island. B.c. imperator, a snake with a naturally wide distribution across the Neotropics, was introduced to Cozumel Island, Mexico, in 1971. At present, it is one of the most abundant, widely distributed, terrestrial vertebrate on the island. We analysed the genetic diversity and structure, based on seven microsatellite loci, of 76 individuals of B.c. imperator from Cozumel. We also included 96 samples from different localities across mainland Mexico, to review the potential origin of the founder individuals. We identified two genetically differentiated populations on Cozumel that showed moderate levels of genetic diversity (H (o) = 0.590-0.620), with a low but significant level of genetic structure (F (ST) = 0.032). Individuals were highly unrelated (71 %) and the majority of genetic variation was distributed within individuals (84 %). We detected a signa
Filiaciones:
Vázquez-Domínguez E.:
Univ Nacl Autonoma Mexico, Inst Ecol, Dept Ecol Biodiversidad, Mexico City 04510, DF, Mexico
Suárez-Atilano M.:
Univ Nacl Autonoma Mexico, Inst Ecol, Dept Ecol Biodiversidad, Mexico City 04510, DF, Mexico
Booth W.:
Department of Entomology and W. M. Keck Center for Behavioral Biology, North Carolina State University, Campus Box 7613, Raleigh, NC 27695-7613, United States
González-Baca C.:
SACBÉ - Servicios Ambientales, Conservación Biológica y Educación, Pelicanos 75, Colonia Flamingos II, 77660 Cozumel, Quintana Roo, Mexico
Cuarón A.D.:
SACBÉ - Servicios Ambientales, Conservación Biológica y Educación, Pelicanos 75, Colonia Flamingos II, 77660 Cozumel, Quintana Roo, Mexico
Multicriteria SC, Torre Uxmal 18, Unidad Independencia IMSS, 10100 Mexico, DF, Mexico
|