Does environmental disturbance also influence within-stream beta diversity of macroinvertebrate assemblages in tropical streams?
| Autor: | Rogério Aparecido Libório, Marcel Okamoto Tanaka |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
geography geography.geographical_feature_category Ecology 010604 marine biology & hydrobiology Biodiversity Beta diversity STREAMS 010603 evolutionary biology 01 natural sciences Taxon Community composition Nestedness Environmental science Dominance (ecology) Animal Science and Zoology Ecology Evolution Behavior and Systematics Riparian zone |
| Zdroj: | Studies on Neotropical Fauna and Environment. 51:206-214 |
| ISSN: | 1744-5140 0165-0521 |
| DOI: | 10.1080/01650521.2016.1237801 |
| Popis: | Riparian deforestation is a major threat to the ecological integrity of streams and aquatic biodiversity, influencing microhabitat availability and susceptibility to disturbances. Here we tested if riparian deforestation of tropical streams influenced beta diversity of macroinvertebrate assemblages, by comparing indices that weighted differentially rare and dominant taxa, and testing if nestedness in community composition increased in deforested streams. Within-stream beta diversity was higher in deforested than forested streams, mainly due to taxon loss and higher dominance. In disturbed streams, higher sedimentation in pool mesohabitats resulted in larger differences in community composition, whereas mesohabitats in forested streams were more stable. |
| Databáze: | OpenAIRE |
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