Resumen en inglés

Bats are part of functional groups that participate in different ecological processes, and are functionally important elements in the dynamics of tropical ecosystems. In this work, the objective was to determine the taxonomic and functional diversity of the bat assembly in a fragment of tropical dry forest (bs-T), located at Finca Buenos Aires, municipality of La Unión, department of Sucre, Colombia. During the months of March and June 2019, and February 2020, the samplings were carried out in three field trips during 16 effective nights of sampling. Twelve 6x3 meter fog nets were used, deployed from 18:00 - 24:00 hours, for a sampling effort of 1152 hours-network-night. The mist nets were checked every 40 minutes, and the captured bats were deposited individually in cloth bags, for their subsequent processing and recording of the information. 52 individuals from four families, 14 genera and 20 species were captured. The family with the highest species richness was Phyllostomidae with 11 species (57.6% of the catches). Molossus molossus and Glossophaga soricina presented the highest abundance. The 2 frugivorous and insectivorous guilds presented the highest abundance and richness of species. The analysis of functional diversity evidenced relationships between species based on morphometric and life history traits, allowing a greater understanding of functional groups, and the degree of functional importance in the various ecological processes and dynamics of tropical ecosystems.