Permeability of matrices of agricultural crops to Euglossina bees (Hymenoptera, Apidae) in the Atlantic Rain Forest

Jaqueline Figuerêdo Rosa , Mauro Ramalho , Daniela Monteiro , Marília Dantas E Silva

AbstractWe evaluate the permeability of three matrices of arboreal crops for the Euglossina bees that inhabit the Brazilian Atlantic rainforest hotspot. The comparisons of occurrences and abundances within three mosaics of forest and extensive arboreal crops (piassava palm, oil palm, and rubber tree) showed that all the matrices were permeable to most orchid bees. The piassava palm was the most permeable, where the spatial distribution of all species of Euglossina did not differ between forest fragments and matrix. The oil palm has shown some loss of permeability to Eulaema atleticana, while the rubber tree crop was not so permeable to El. atleticana and Euglossa imperialis. Euglossa iopoecila was sampled only in the forest fragments. At the present scale of forest cover in the three studied mosaics (10 to 40 %), the arboreal matrices are contributing towards the functional connectivity in the Atlantic Rain Forest at both scales: the landscape mosaic and the Brazilian Atlantic Forest corridor.

Mots clés: functional connectivity; Euglossina; matrix habitat; agricultural crop; Atlantic Forest

Domaines: Sciences du Vivant [q-bio]

Jaqueline Figuerêdo Rosa, Mauro Ramalho, Daniela Monteiro, Marília Dantas E Silva. Permeability of matrices of agricultural crops to Euglossina bees (Hymenoptera, Apidae) in the Atlantic Rain Forest. Apidologie, 2015, 46 (6), pp.691-702. ⟨10.1007/s13592-015-0359-9⟩. ⟨hal-01557208⟩