Have native Hymenoptera or Africanized bees become aggressive foragers due to resource competition?

Periodo de realización: 2017/06/01 al 2017/01/01

Tipo: Artículo científico

Lugar(es) de estudio: Chetumal, Q.R., México, Sian Ka'an, Q.R., México
Resumen: "We observed and ranked foraging behavior among competing hymenopterans. Africanized honeybees, observed in Yucatan, Mexico attacking Trigona fulviventris (Meliponini) on flowers in 2005, were again studied there in 2015 and 2016. We used honeywater (of Apis or Melipona) and standardized baiting to observe bee and wasp foraging. Of the recorded 7578 aggressive interactions, nearly 2/3 were intraspecific. Africanized Apis mellifera rarely displayed even mild aggressive behavior toward Meliponini, including T. fulviventris. Similarly, previous work documented no agonism by Cephalotrigona, but it attacked Melipona beecheii and Apis in our study. Individual, flexible behavior is thereby implicated in foraging behavior. The common T. fulviventris was persistently aggressive against Apis, while Melipona, the largest native bee and of Apis size, showed no aggression toward other insects"

Información de ECOSUR