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Revisado por pares
Polinizadores de Bertholletia excelsa (Lecythidales: Lecythidaceae): interações com abelhas sem ferrão (Apidae: Meliponini) e nicho trófico
2010; Springer Nature; Volume: 39; Issue: 6 Linguagem: Inglês
10.1590/s1519-566x2010000600002
ISSN1678-8052
AutoresCharles Fernando dos Santos, Maria Lúcia Absy,
Tópico(s)Insect-Plant Interactions and Control
ResumoThis paper presents an analysis of the foraging behavior and interactions of Xylocopa frontalis Olivier (Apidae: Xylocopini) and Eulaema mocsaryi (Friese) (Apidae: Euglossini) in the presence of stingless bees (Apidae: Meliponini) in fl owers of Bertholletia excelsa, the Brazilian nut.The palynological load carried by both species was also examined.This study was conducted in the farm Aruanã, Itacoatiara/ Amazonas state, Brazil, during the fl owering peak of B. excelsa.The visitation by the main pollinators X. frontalis and E. mocsaryi were infl uenced by the presence and activities of stingless bees in the fl owers of B. excelsa.Meliponini bees did not have any effect on the visits and collection of fl oral resources by X. frontalis, while negatively affecting the number of visits by E. mocsaryi.The stingless bees presented a variety of strategies to get access to pollen grains of B. excelsa, grouped into two categories: opportunism -Frieseomelitta trichocerata Moure, Tetragona goettei (Friese), and Tetragona kaieteurensis (Schwarz), and stealing -Trigona branneri Cockerell, Trigona fuscipennis Friese, and Trigona guianae Cockerell.The palynological analysis from X. frontalis showed that the bee collected pollen in a few species of plants, but mainly on B. excelsa.The pollen grains of B. excelsa were poorly represented in the pollen shipments of E. mocsaryi, due to its large trophic niche in the locality.
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