| Autor: |
Leandro Schlemmer Brasil, Joana Darc Batista, Nubia França da Silva Giehl, Marco Bruno Xavier Valadão, Josias Oliveira dos Santos, Karina Dias-Silva |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Acta Limnologica Brasiliensia, Vol 26, Iss 3, Pp 278-287 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
2179-975X |
| DOI: |
10.1590/S2179-975X2014000300007 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
