Abstract

CRESPO CORDERO, Margarita Rosario et al. Approximations to the interaction network between nocturnal bees and flowering plants from Potrerillos del Güendá (Santa Cruz, Bolivia). Rev. Cien. Tec. In. [online]. 2024, vol.22, n.29, pp.41-50. ISSN 2225-8787.  https://doi.org/10.56469/rcti.v22i29.950.

Bees with crepuscular and nocturnal habits have been poorly studied in Bolivia, where most studies have been focused on Apis mellifera. Interaction networks allow us to quantify biodiversity and understand both natural and anthropogenic phenomena and are very useful for the study of plant-pollinator interactions. This work was carried out in a transition forest of Amazonia and Chiquitano dry forest, in order to know the intensity and characteristics of the interactions between nocturnal bees and local plants, using light traps to capture nocturnal bees. We collected 19 individuals during three nights. We identified four species of the family Halictidae, tribe Augochlorini, of which two belong to the genus Megalopta and two are unidentified species of the same tribe. We also carried out a palynological survey of the site and its surroundings. Using morphological comparison between the preparations of the palynotheque, those obtained from the bee bodies and specialized bibliography, we found twelve morphospecies of pollen present in the bee bodies, of which those belonging to the families Lythraceae and Asteraceae had a higher relative frequency. As a result, we have an approximation to the interaction network, which allows us to investigate in a deeper way the interaction of this type of bees and the plants they visit.

Keywords : Megalopta; Augochlorini; zoocentric network; palynology.

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