Anurans trophic dynamic and guild structure in tropical dry forests of the Caribbean region of Colombia

BLANCO TORRES, A.; DURÉ, M. I.; BONILLA, M. A.

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS.

ACAD BRASILEIRA DE CIENCIAS

Lugar: Rio de Janeiro; Año: 2021

0001-3765

Studies on the exploitation oftrophic resources allow to establish interactions between  predators and predator-prey, and this dynamiccan present fluctuations over time and space. We analysed stomach contents of 19 anuran species fromtropical dry forests of Colombia, quantified the overlap between species andidentified anuran trophic guilds. Most of the  species were generalists in diet (89.5%), somewith strong prey dominance and only two  species were classified as specialists. Twoanurans guilds were identified according to diet structure and habitat use: "ground foraging anurans, consumingFormicidae and Isoptera"  and"arboreal ?sit-and-wait? predators, primarily consuming arachnids". Aconsiderable  number of species did notclearly group in community trophic structure analysis. The level  of taxonomic resolution with that preys areworked affects analysis of trophic niches  segregation when analyzing regional and localpatterns. AInuran species of  tropical dry forest in the Colombian Caribbeandisplay trophic resources partitioning at the  level of species and/or morphospecies, as amechanism of coexistence.