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Environmental drivers of the metacommunity structure of insects on the surface of tropical streams of the Amazon by Cunha, Erlane José; Juen, Leandro is a Environmental Science article available to read on EtoBox.
What is Environmental drivers of the metacommunity structure of insects on the surface of tropical streams of the Amazon about?
## Abstract Understanding how species are distributed according to environmental and spatial variation is still one of the main issues in community ecology. We analysed the responses of semiaquatic bugs (Gerromorpha: Hemiptera) to environmental and spatial processes considered drivers of metacommunity structure in Amazonian streams. We tested the hypotheses that environmental variables determine the metacommunity structure and that the spatial structures, both dendritic and overland, are not representative of the metacommunity structure. Environmental variables and semiaquatic bugs were collected from 39 stream sites. Spatial variables were calculated in two configurations – overland and hydrographic distances between streams. We used partial redundancy analysis to test the relative importance of environment and space on the metacommunity structure, considering the two spatial configurations separately. The environmental variables were the metacommunity drivers in tropical streams, mainly structured by the depth, canopy, embeddedness and slope variables. Our results also indicate little or no dispersion limitation, as no spatial patterns were found. Thus, environmental selection de
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- Author
- Cunha, Erlane José; Juen, Leandro
- Publisher
- John Wiley and Sons; Blackwell Publishing; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 1442-9985)
- Published
- 2020
- Language
- EN
- Field
- Environmental Science (Physical Sciences)