We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Diversidad genética y abundancia relativa de Didelphis marsupialis y Didelphis virginiana en Chiapas, México.
- Authors
Cruz-Salazar, Bárbara; Ruiz-Montoya, Lorena; Navarrete-Gutiérrez, Darío; Espinoza-Medinilla, Eduardo E.; Vázquez-Domínguez, Ella; Vázquez, Luis Bernardo
- Abstract
In wide distribution species, asD. marsupialis and D. virginiana, large population sizes, high diversity and little genetic differentiation are predicted. In this study, the relative abundance of D. marsupialis and D. virginiana by capturing organisms in the Highlands and the Central Depression regions, in Chiapas, was estimated. Also the diversity and structure genetic from 7 micro satellite loci were estimated. The relative abundance was low (between 0.008-0.06 individuals traps nights) and the highest incidence of opossums was observed in the Central Depression. The sex ratio was significantly adjusted to the relation 1:1 in both species. The greater genetic diversity was recorded in the Central Depression in D. virginiana (He=0.58), with high levels of inbreeding. Genetic differentiation moderate was observed between species (Frt=0.13) and minimum among populations of each species (Fsr=0.01). Although the values of genetic diversity were moderate, D. marsupialis and D. virginiana have low abundances with high levels of inbreeding, which may have negative consequences in the future on the genetic variability of these species in the studied populations.
- Subjects
CHIAPAS (Mexico); MEXICO; OPOSSUMS; INBREEDING; SPECIES
- Publication
Revista Mexicana de Biodiversidad, 2014, Vol 85, Issue 1, p251
- ISSN
1870-3453
- Publication type
Article
- DOI
10.7550/rmb.36116