Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/17065
Título: Effects of human disturbance and riparian conditions on Odonata (Insecta) assemblages in eastern Amazon basin streams
Autor: Oliveira-Júnior, José Max Barbosa de
Marco Júnior, Paulo de
Dias-Silva, Karina
Leitão, Rafael Pereira
Leal, Cecília Gontijo
dos Santos Pompeu, Paulo
Gardner, Toby Alan
Hughes, Robert Mason
Juen, Leandro
Palavras-chave: Anisoptera (dragonflies)
Insecta
Odonata
Zygoptera
Data do documento: 2017
Revista: Limnologica
É parte de: Volume 66, Pags. 31-39
Abstract: Riparian vegetation is an important determinant of the physical, chemical, and biological condition of streams, and odonates are useful indicators of riparian condition. To identify environmental factors that structure Odonata assemblages in tropical forest streams, we collected adult odonate specimens and habitat data from 50 stream sites located in the Brazilian municipality of Paragominas (Pará state). We collected 1769 specimens representing 11 families, 41 genera, and 97 species. Of these species, 56 were Zygoptera, and 41 were Anisoptera. Improved environmental condition was reflected in increased Zygoptera species richness and reduced Anisoptera species richness. Channel shading was strongly and positively related to Zygoptera richness, and negatively to Anisoptera richness. Zygoptera species richness, but not Anisoptera species richness, was related positively to bank angle, quantity of wood in the stream bed, electrical conductivity, and decreased water temperature. Altered riparian vegetation structure was the principal determinant of odonate assemblage structure. Our results indicate that maintaining intact riparian vegetation is fundamental for conserving or re-establishing aquatic odonate assemblage structure. © 2017 Elsevier GmbH
DOI: 10.1016/j.limno.2017.04.007
Aparece nas coleções:Artigos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.