Urban aquatic habitats and conservation of highly endangered species: the case of Ambystoma mexicanum (Caudata, Ambystomatidae)
Por:
Recuero E., Cruzado-Cortes J., Parra-Olea G., Zamudio K.R.
Publicada:
30 ago 2010
Resumen:
Species with highly restricted distributions are vulnerable to extinction, and modification of natural habitats within their small ranges is a primary threat to their persistence. Expansion of urban development significantly impacts natural habitats and, therefore, threatens local diversity. The Mexican axolotl, Ambystoma mexicanum, is a strictly aquatic species that persists currently in two highly threatened and isolated populations. The current habitat remaining for these species are remnants of a historically extensive lacustrine system that occupied the entire Valley of Mexico, but has been destroyed by the growth of Mexico City. Unexpectedly, a third viable population of axolotls has been found in Chapultepec Park, a public recreational area in the heart of Mexico City. Phylogenetic and haplotype network analyses of mitochondrial DNA sequences confirmed low genetic differentiation and a recurrent lack of monophyly in many of the taxa belonging to the Ambystoma tigrinum species gr
Filiaciones:
Recuero E.:
Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain
Cruzado-Cortes J.:
Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04510, DF, Mexico
Instituto de Ecología, UNAM, Cd. Universitaria, Tercer Circuito exterior s/n, CP. 04510, México, D. F., Mexico
Parra-Olea G.:
Univ Nacl Autonoma Mexico, Inst Biol, Mexico City 04510, DF, Mexico
Instituto de Biología, UNAM, Cd. Universitaria, Tercer Circuito exterior s/n, CP. 04510, México, D. F., Mexico
Zamudio K.R.:
Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, United States
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