Resumo
Collection data of Euglossinae males from Parque Estadual do Rio Doce (PERD) and Viçosa, both areas with remnants of Atlantic Rain Forest (Mata Atlântica) in Minas Gerais state, Brazil are presented. Comparisons made among three fragments with different sizes and states of disturbance from Viçosa showed differences in abundance of most common species and apparently, Eulaema nigrita Lepeletir, 1841 can be an useful indicator of disturbed sites. Some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no flow of individuals or species of one fragment to another, even when they are only 1 km apart. 15 species of euglossines were sampled in PERD, and the most abundant was Eulaema cingulata (Fabricius, 1804). At Viçosa, 10 species were sampled, E. nigrita was the predominant one. Methyl salicylate attracted no males at both sites, in spite of large numbers of species and individuals sampled using this bait in other regions. The majority of species and individuals were collected in the rainy season. Only 0,58% of sampled males carried orchid pollinia (Catasetum Richard, Cycnoches Lindley and Coryanthes Hook) on their bodies. Emergence data of four species of Euglossa Latreille, 1802 reared from trap nests suggest that sex ratio in Euglossini is not a constant within the tribe. A list of 57 euglossine species now known to occur in Mata Atlântica are offered.
Apidae; Euglossini; Atlantic Forest; conservation; bioindicator
Apidae; Euglossini; Atlantic Forest; conservation; bioindicator
Abelhas Euglossini (Apidae) de áreas de Mata Atlântica: abundância, riqueza e aspectos biológicos
Euglossine bees (Apidae) from Atlantic Forest sites: abundance, richness, and biological aspects
Rui Carlos Peruquetti* * Correspondências: Laboratório de Genética Bioquímica, Departamento de Genética e Evolução, Universidade Federal de São Carlos. Caixa Postal 676, 13565-905 São Carlos, São Paulo, Brasil. E-mail: prcp@iris.ufscar.br ; Lúcio Antonio de Oliveira Campos; Claudia Diniz Pinto Coelho; Célio Vicente Machado Abrantes; Luciane Cristina de Oliveira Lisboa
Departamento de Biologia Geral, Universidade Federal de Viçosa. 36571-000 Viçosa, Minas Gerais, Brasil
ABSTRACT
Collection data of Euglossinae males from Parque Estadual do Rio Doce (PERD) and Viçosa, both areas with remnants of Atlantic Rain Forest (Mata Atlântica) in Minas Gerais state, Brazil are presented. Comparisons made among three fragments with different sizes and states of disturbance from Viçosa showed differences in abundance of most common species and apparently, Eulaema nigrita Lepeletir, 1841 can be an useful indicator of disturbed sites. Some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no flow of individuals or species of one fragment to another, even when they are only 1 km apart. 15 species of euglossines were sampled in PERD, and the most abundant was Eulaema cingulata (Fabricius, 1804). At Viçosa, 10 species were sampled, E. nigrita was the predominant one. Methyl salicylate attracted no males at both sites, in spite of large numbers of species and individuals sampled using this bait in other regions. The majority of species and individuals were collected in the rainy season. Only 0,58% of sampled males carried orchid pollinia (Catasetum Richard, Cycnoches Lindley and Coryanthes Hook) on their bodies. Emergence data of four species of Euglossa Latreille, 1802 reared from trap nests suggest that sex ratio in Euglossini is not a constant within the tribe. A list of 57 euglossine species now known to occur in Mata Atlântica are offered.
Key words: Apidae, Euglossini, Atlantic Forest, conservation, bioindicator.
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AGRADECIMENTOS. Os autores agradecem à Sânzia R.D.F. Silva pela colaboração durante as coletas realizadas no PERD, a Robert L. Dressler (Florida University) pela identificação de algumas espécies de
Euglossa
e dos polinários de orquídeas, ao Pe. Jesus S. Moure (Universidade Federal do Paraná) pela identificação de algumas espécies de Euglossini, a Elder. F. Morato (Universidade Federal do Acre) e à Patrícia S. Ferreira-Peruquetti (Universidade Federal de São Carlos) pela leitura da primeira versão do manuscrito e sugestões apresentadas, à Universidade Federal de Viçosa pelas facilidades oferecidas durante o período de coleta, à Monika Barth (Instituto Oswaldo Cruz) pela determinação dos tipos polínicos, à Capes, ao CNPq e à FAPEMIG pelos auxílios financeiros concedidos e aos consultores anônimos da RBZ pelas sugestões apresentadas.
Recebido em 29.X.1998; aceito em 17.XI.1999.
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Datas de Publicação
-
Publicação nesta coleção
04 Jun 2009 -
Data do Fascículo
1999
Histórico
-
Recebido
29 Out 1998 -
Aceito
17 Nov 1999