Molecular phylogeography ofPteronotus davyi(Chiroptera: Mormoopidae) in Mexico

• DOI: 10.1644/08-mamm-a-212r3.1
• Publication Date: 2010-02-18T21:12:08Z
• Authors: Luis M. Guevara-C...; Ricardo López-Wil...; Francisco F. Pedr...; Javier Juste; Carlos Ibáñez; Irene D. L. A. Ba...
• Keywords: Land bridge; Peninsula

Pteronotus davyi, Davy's naked-backed bat, is a tropical bat whose current distribution in Mexico covers the watersheds of Pacific and Gulf coasts Mexico, converges at Isthmus Tehuantepec, continues into Yucatan peninsula. We evaluated phylogeographic relationships among 18 populations using data from nucleotide sequence hypervariable II domain mitochondrial DNA control region 105 specimens. Extant were distributed over 3 geographic regions (Pacific Coast, Southeastern) that delineated priori according to floristic characteristics biogeography. Coalescent simulations supported model 2 refugia situated south (Arc Soconusco refuges) during late Pleistocene, followed by expansion Southeastern groups. The Southeast genetically divergent Coast populations, supporting existence distinct lineages P. davyi likely due Tehuantepec acting as geographical barrier. Examination our revealed genetic differentiation coastal groups but lower level relative Southeast. This pattern suggests Sierra Madre Occidental, Oriental, del Sur act physical barriers dispersal for davyi.