Diversity and structure of Ephemeroptera, Plecoptera and Trichoptera (Insecta) assemblages from riffles in mountain streams of Central Brazil

被引：39
|
作者：
Bispo, Pitagoras C.
Oliveira, Leandro G.
机构：
[1] Univ Estadual Paulista, Fac Ciencias & Letras Assis, Dept Ciencias Biol, Lab Biol Aquat, BR-19806900 Sao Paulo, Brazil
[2] Univ Fed Goias, Inst Ciencias Biol, Dept Biol Geral, BR-74001970 Goiania, Go, Brazil
来源：
REVISTA BRASILEIRA DE ZOOLOGIA | 2007年 / 24卷 / 02期
关键词：
aquatic insects; EPT; immatures; lotic environments;
D O I：
10.1590/S0101-81752007000200004
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
The diversity and structure of Ephemeroptera, Plecoptera and Trichoptera (EPT) assemblages in streams of Central Brazil (Serra dos Pireneus, Pirenopolis, State of Goias) was investigated. Abundance data of EPT were obtained in Central-West Brazilian streams in order to evaluate the effect of spatial variability, including the effect of size of the stream and anthropic action, and seasonality (dry and rainy seasons) on faunal diversity and structure. The immatures were collected with circular sieves (0.5 mm mesh) during one hour at five collection stations over 14 months. From a spatial point of view, the data showed that anthropic action determined the patterns of diversity whereas the size of streams (11, and 3(rd)-4(th) orders) determined the faunistic composition. In addition, environmental seasonality was an important factor for structuring the EPT fauna.
引用
收藏
页码：283 / 293
页数：11
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