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

Leandro Schlemmer Brasil, Joana Darc Batista, Nubia França da Silva Giehl, Marco Bruno Xavier Valadão, Josias Oliveira dos Santos, Karina Dias-Silva
2014 Acta Limnologica Brasiliensia  
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
more » ... 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.
doi:10.1590/s2179-975x2014000300007 fatcat:ezjjpalssfcnbpqhqxtru3do4i