Faunistic analysis of insects occurring in the margins of Madeira River, in Porto Velho, State of Rondônia, Brazil / Análise faunística de insetos nas margens do alto rio Madeira, Porto Velho, Rondônia, Brasil.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2010

RESUMO

This research deals with the fauna of insects, emphasizeing Coleoptera, Cerambycidae, occurring in the margins of the Madeira River, in Porto Velho, State of Rondônia, Brazil. The insects were collected one day per month, with light traps (model Luiz de Queiroz) and Malaise traps placed at 15 sampling points, from January to December, 2004. The parameters species richness, species abundance, diversity and similarity indices were used to evaluate the insect communities. The species richness was estimated by the non parametric statistical procedures Chao 1, Jackknife 1 and Jackknife 2. One collected 7,036 specimens belonging to 684 species and/or morphospecies, distributed in 127 families. The orders Coleoptera and Lepidoptera were the most diverse ones. The most abundant families of Coleoptera were Carabidae, Cerambycidae, Chrysomelidae, Curculionidae, Hydrophilidae and Scarabaeidae, which together represented 81% of the individuals collected. Regarding the Cerambycidae one collected 110 species, distributed in 5 subfamilies, 35 tribes, and 92 genera. Most of the species (75%) was represented by only one individual. The values of the Shannon index obtained for the areas were significantly different and the species were homogeneously distributed.

ASSUNTO(S)

fauna coleoptera madeira river biodiversidade diversity amazônia rio madeira. cerambycidae cerambycidae amazonia. coleoptera

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