Cariotipo de Leptodactylus insularum (Anura: leptodactilidae (Barbour, 1906) presente en un fragmento de bosque seco tropical de la región caribe colombiana

Colombia is one of the most biodiverse countries in anuran species, however, many of them are in a vulnerable situation. This has the added problem that for most of them the genetic wealth and possible variations between biotopes is unknown. The aim of this study was to characterize the karyotype of Leptodactylus insularum present in a fragment of tropical dry forest of the Caribbean region (Colombia). Was used the technique described for SCHMIDT (1978) and for chromosomal classification parameters used LEVAN et al. (1964). L. insularum presented a modal number of n=11 and 2n=22, with chromosome formula M+4SM+sM+5M. This result varies slightly with respect to the formula of L. insularum present in the Andean region (Colombia) which is 2M+SM+M+ST+M+SM+4M, however, these differences may be associated with biogeographical aspects, so to stay physically separate these populations could have accumulated structural changes in their chromosomes through possible insertion or deletion events. An important aspect is that the specimens that make up this genre generally have a similar chromosome number.