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Revista mexicana de biodiversidad

versão On-line ISSN 2007-8706versão impressa ISSN 1870-3453


MESA-ZAVALA, Erika et al. Terrestrial vertebrates recorded by camera traps in areas with seasonal streams and creeks of superficial waters in a semiarid habitat of Baja California Sur, Mexico. Rev. Mex. Biodiv. [online]. 2012, vol.83, n.1, pp.235-245. ISSN 2007-8706.

Permanent or ephemeral water ponds (puddles, catchments, drains, and so on) located on ground depressions, such as streams and creeks, are a fundamental support for ecosystems in dry areas. This study identified the species of native terrestrial vertebrates in 4 sites in the southernmost part of the Sierra El Mechudo, B.C.S., including how such species use these bodies of water based on the periods of species activity. Habitats were characterized in 4 sites (topography, vegetation, and water sources); camera-traps were placed around water ponds from March to October 2007. The 4 sites differed in their environmental characteristics. Overall, there were 41 species of terrestrial vertebrates (3 reptiles, 31 birds, and 7 mammals), with several unidentified species of bats that were also found. Specific richness and visit (record) frequency were also different at each site. Species activity schedule was similar in the 4 sites with the exception of 3 species of mammals. This study provides important information of superficial water in semiarid areas, including description of habitat, species, and their behavior, which are basic elements for conservation and management of natural resources.

Palavras-chave : fauna; species richness; superficial water bodies; Sierra El Mechudo.

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