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- Title
Scale-Related Contribution of Environmental and Spatial Processes to Structuring Phytoplankton Assemblages.
- Authors
Wan, Yun; Hu, Jing; Xu, Lili; Xu, Chi; Wan, An; Chen, Yushun
- Abstract
To understand whether the relative roles of environmental control and spatial processes on phytoplankton community structure vary spatially, we collected species and environmental data in August 2010 from three hierarchical spatial scales (basin, region, and sub-region) from the Huai River Basin, China. We assessed the importance of environmental control and spatial processes instructuringphytoplanktoncommunity at the three scales, respectively. Using the method of variation partitioning, we partitioned the community variation into fractions attributable to pure environment variables, pure spatial variables (constructed by Moran's eigenvector maps), and both space and environment. We found that the importance of pure environmental control in phytoplankton community increased with decreasing spatial scales, while the importance of pure spatial processes increased with increasing spatial scales. There wasnoclear relationshipbetweenspatial scaleandthe variationthat relatedtobothspace andenvironment. The relative importanceofenvironmental controlandspatial processes is not only related to spatial scale, but also to region context. To predict the importance of spatial and environmental variables in structuring phytoplankton communities in streams, the spatial scale needs to be considered.
- Subjects
HUAI River (China); PHYTOPLANKTON; SPATIAL variation; ENVIRONMENTAL engineering; BIOTIC communities; RESOURCE partitioning (Ecology)
- Publication
CLEAN: Soil, Air, Water, 2015, Vol 43, Issue 12, p1592
- ISSN
1863-0650
- Publication type
Article
- DOI
10.1002/clen.201300891