| Autor: |
Halczok TK; Zoological Institute and Museum Greifswald University Greifswald Germany.; Smithsonian Tropical Research Institute Balboa, Ancón Republic of Panamá., Brändel SD; Smithsonian Tropical Research Institute Balboa, Ancón Republic of Panamá.; Institute of Evolutionary Ecology and Conservation Genomics University of Ulm Ulm Germany., Flores V; Smithsonian Tropical Research Institute Balboa, Ancón Republic of Panamá.; Committee on Evolutionary Biology University of Chicago Chicago Illinois., Puechmaille SJ; Zoological Institute and Museum Greifswald University Greifswald Germany., Tschapka M; Smithsonian Tropical Research Institute Balboa, Ancón Republic of Panamá.; Institute of Evolutionary Ecology and Conservation Genomics University of Ulm Ulm Germany., Page RA; Smithsonian Tropical Research Institute Balboa, Ancón Republic of Panamá., Kerth G; Zoological Institute and Museum Greifswald University Greifswald Germany. |
| Jazyk: |
angličtina |
| Zdroj: |
Ecology and evolution [Ecol Evol] 2018 May 15; Vol. 8 (12), pp. 6065-6080. Date of Electronic Publication: 2018 May 15 (Print Publication: 2018). |
| DOI: |
10.1002/ece3.4161 |
| Abstrakt: |
Gene flow, maintained through natal dispersal and subsequent mating events, is one of the most important processes in both ecology and population genetics. Among mammalian populations, gene flow is strongly affected by a variety of factors, including the species' ability to disperse, and the composition of the environment which can limit dispersal. Information on dispersal patterns is thus crucial both for conservation management and for understanding the social system of a species. We used 16 polymorphic nuclear microsatellite loci in addition to mitochondrial DNA sequences (1.61 kbp) to analyse the population structure and the sex-specific pattern of natal dispersal in the frog-eating fringe-lipped bat, Trachops cirrhosus , in Central Panama. Our study revealed that-unlike most of the few other investigated Neotropical bats-gene flow in this species is mostly male-mediated. Nevertheless, distinct genetic clusters occur in both sexes. In particular, the presence of genetic differentiation in the dataset only consisting of the dispersing sex (males) indicates that gene flow is impeded within our study area. Our data are in line with the Panama Canal in connection with the widening of the Río Chagres during the canal construction acting as a recent barrier to gene flow. The sensitivity of T. cirrhosus to human-induced habitat modifications is further indicated by an extremely low capture success in highly fragmented areas. Taken together, our genetic and capture data provide evidence for this species to be classified as less mobile and thus vulnerable to habitat change, information that is important for conservation management. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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