Biodiversidade de meliponíneos na microrregião do médio Araguaia e seus aspectos ecológicos em áreas antropizadas

Abstract

This study aimed to investigate the biodiversity of stingless bees (Apidae, Meliponini) in the microregion of Médio Araguaia within the Cerrado biome and to assess specific environmental variables (nest height from the ground, nesting substrate, and canopy cover) in anthropized areas. Active nest searches were conducted along transects in three distinct areas located in the municipalities of Pontal do Araguaia and Barra do Garças (MT). The nests found were identified, and environmental variables were measured. Identification guides and statistical models were used to identify species and correlate environmental variables with species presence. A total of 104 nests, representing 14 species across 12 genera, were identified, with Nannotrigona testaceicornes and Tetragonisca fiebrigi being the most abundant. Nest height varied by species, with Scaptotrigona postica and Trigona hyalinata commonly found at higher elevations. Regarding nesting preferences, a higher incidence of nests was observed in buildings. These findings enhance our understanding of the ecological factors influencing stingless bee populations in the region and illustrate the impact of human activity on their nesting behaviors.