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Alpha–beta diversity in trap-nesting wasps (Hymenoptera: Aculeata) in Southern Brazil

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Buschini, M.L.T. and Woiski, T.D. 2008. Alpha–beta diversity in trap-nesting wasps (Hymenoptera: Aculeata) in Southern Brazil. —Acta Zoologica (Stockholm) 89: 351–358

This study was carried out at the Parque Municipal das Araucárias, in the municipality of Guarapuava, state of Paraná, southern Brazil. The aims of the present study were to access the spectrum of wasp species inhabiting trap-nests in three habitats, to record their richness and diversity and elucidate the process responsible for their composition and abundance and to investigate if there is difference in their diversity between Brazilian tropical and subtropical regions. A total of 1097 nests, belonging to 21 species of solitary wasps, were collected. Of these, nine belonged to the family Vespidae (42.86%), six to Pompilidae (28.57%), four to Crabronidae (19.05%) and two to Sphecidae (9.52%). Crabronidae was the most abundant family in the samplings, with a total of 927 collected nests (84.3%). The environment that presented the greatest species diversity, richness and evenness was the grassland areas. Using the Bray–Curtis coefficient (beta diversity), the greatest similarity, in relation to species abundance, occurred between swamp and grasslands. In contrast, the araucaria forest was the habitat with the greatest dissimilarity, a result corroborated by the correspondence analysis.
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Keywords: Aculeata; Hymenoptera; community; diversity; solitary wasps; trap-nests

Document Type: Research Article

Publication date: 2008-10-01

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