Environmental integrity and damselfly species composition in Amazonian streams at the "arc of deforestation" region, Mato Grosso, Brazil-Reference-Cited by-同舟云学术

Environmental integrity and damselfly species composition in Amazonian streams at the "arc of deforestation" region, Mato Grosso, Brazil

Published:2014-09 Issue:3 Volume:26 Page:278-287
ISSN:2179-975X
Container-title:Acta Limnologica Brasiliensia
language:
Short-container-title:Acta Limnol. Bras.

Author:

Brasil Leandro Schlemmer¹,Batista Joana Darc¹,Giehl Nubia França da Silva¹,Valadão Marco Bruno Xavier¹,Santos Josias Oliveira dos¹,Dias-Silva Karina²

Affiliation:

1. Universidade do Estado de Mato Grosso, Brazil; Universidade do Estado de Mato Grosso, Brazil

2. Universidade do Estado de Mato Grosso, Brazil; Universidade Federal de Goiás, Brazil

Abstract

AIMS: Investigated how the loss of environmental integrity affects damselfly species composition in nine sites with different levels of environmental integrity in a Cerrado-Amazon transition region known as "arc of deforestation" in Mato Grosso State, Brazil. We also tested the influence of environmental variables on species composition. METHODS: We collected in transects of 100 m and used ordination (PCoA) and simple linear regression. RESULTS: Species composition was strongly influenced by the environmental quality of sites, and the best model to explain species composition included variables related to channel morphology. CONCLUSIONS: These results are connected to the environmental homogenization and loss of environmental integrity as a result of extensive agricultural practices which alter stream communities of dragonflies in this region.

Publisher

FapUNIFESP (SciELO)

Subject

Water Science and Technology,Ecology,Aquatic Science,Ecology, Evolution, Behavior and Systematics

Link

http://www.scielo.br/pdf/alb/v26n3/07.pdf

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