Abstract

BLANCO TORRES, ARGELINA  and  BONILLA GOMEZ, MARÍA ARGENIS. Microhábitat Partitioning Between Leiuperidae and Bufonidae Species (Amphibia: Anura) in Tropical Dry Forest Areas in Colombian Caribbean. Acta biol.Colomb. [online]. 2010, vol.15, n.3, pp.47-60. ISSN 0120-548X.

ABSTRACT We analyzed partitioning of microhábitats by five species of frogs in the families Bufonidae (Rhinella marina, R. granulosa), and Leiuperidae (Engystomops pustulosus, Pleurodema brachyops and Pseudopaludicola pusilla) in six different localities of the Colombian Caribean with tropical dry forest fragments and different land uses. We identified 29 types of microhábitats; permanent ponds in pastures with trees (CPPA) and flooded pastures without trees (PISA) were the most important environmental used. Engystomops pustulosus used the must microhábitats, and none are used by specialist species. Thus, differences in the use of resource on regional and local scales appeared. Dynamics of microhábitat uses was influenced by the climatic variations of the tropical dry forest. Microhábitats distribution as a mechanism of coexistence in these species is implemented for dry season but in rainfall season this mechanism not exists.

Keywords : coexistence; tropical dry forest; resource partitioning; anurans.

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