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Efeito da alteração ambiental sobre comunidades de Odonata em riachos de Mata Atlântica de Minas Gerais, Brasil

Effects of environmental degradation on Odonata community of Atlantic Forest streams from Minas Gerais, Brazil

Resumo

The effect of riparian deforestation and stream impoundments on an odonate community was studied in áreas of surviving Atlantic forest in Viçosa and in Rio Doce State Park (PERD), Marliéria, Minas Gerais, Brazil. During 1997 16 species of Libellulidae, 4 Coenagrionidae, 2 Gomphidae, 2 Calopterygidae, 1 Megapodagrionidae, 1 Aeshnidae and 3 Protoneuridae were collected. In Viçosa, the association of sampled odonates with lotic or lentic systems, and in PERD for areas with or without riparian vegetation were compared. The results suggest that although overall odonate taxonomic richness is high in areas without riparian vegetation. Likely, because productivity increase of such areas and its invasion by lentic Odonata species.

Odonata community; deforestation; Atlantic Forest; environmental degradation; riparian vegetation


Odonata community; deforestation; Atlantic Forest; environmental degradation; riparian vegetation

Efeito da alteração ambiental sobre comunidades de Odonata em riachos de Mata Atlântica de Minas Gerais, Brasil

Effects of environmental degradation on Odonata community of Atlantic Forest streams from Minas Gerais, Brazil

Patrícia Santos Ferreira-PeruquettiI; Paulo De Marco Jr.II

IDepartamento de Hidrobiologia, Universidade Federal de São Carlos. Caixa Postal 676, 13565-905 São Carlos, São Paulo, Brasil. E-mail: patricia@iris.ufscar.br

IIDepartamento de Biologia Geral, Universidade Federal de Viçosa. 36571-000 Viçosa, Minas Gerais, Brasil. E-mail: pdemarco@mail.ufv.br

ABSTRACT

The effect of riparian deforestation and stream impoundments on an odonate community was studied in áreas of surviving Atlantic forest in Viçosa and in Rio Doce State Park (PERD), Marliéria, Minas Gerais, Brazil. During 1997 16 species of Libellulidae, 4 Coenagrionidae, 2 Gomphidae, 2 Calopterygidae, 1 Megapodagrionidae, 1 Aeshnidae and 3 Protoneuridae were collected. In Viçosa, the association of sampled odonates with lotic or lentic systems, and in PERD for areas with or without riparian vegetation were compared. The results suggest that although overall odonate taxonomic richness is high in areas without riparian vegetation. Likely, because productivity increase of such areas and its invasion by lentic Odonata species.

Key words: Odonata community, deforestation, Atlantic Forest, environmental degradation, riparian vegetation

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AGRADECIMENTOS. Agradecemos ao CNPq e à FAPEMIG pelo auxílio financeiro. A UFV pelas facilidades oferecidas durante o período das coletas. Aos colegas do laboratório de Ecologia da UFV: Tadeu, Anderson, Daniela, Flávia, Sandra, Hebinho, Tania e Maria do Carmo pelo auxílio nas coletas. A Marcos Vinícius, Elmo e Sânzia, funcionários do PERD/IEF pela permissão e apoio durante as coletas. Aos professores Angelo Machado (UFMG) e Alcimar Carvalho (Museu Nacional do Rio de Janeiro) pela identificação de parte do material. A Rui C. Peruquetti (UFSCar) pela leitura do manuscrito e pelas sugestões e, também, a Ethan Bright (University of Michigan) pela correção do

abstract

e sugestões apresentadas.

Recebido em 29.VI.2001; aceito em 27.III.2002.

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Datas de Publicação

  • Publicação nesta coleção
    18 Maio 2009
  • Data do Fascículo
    Jun 2002

Histórico

  • Recebido
    29 Jun 2001
  • Aceito
    27 Mar 2002
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