Datasets of 30 freshwater lakes including macroinvertebrate data and explanatory data

Understanding the distance-decay relationship (DDR) has been considered important because it reflects a combination of several ecological processes such as dispersal limitation and environmental sorting. However, the effects of human disturbances on DDR are poorly known, especially in freshwater lakes. To fill this gap, we used datasets across 30 freshwater lakes in the Yangtze River floodplain to examine how anthropogenic eutrophication modified the relationships between three facets (taxonomic, functional, and phylogenetic) and three measures (overall dissimilarity, turnover, and nestedness-resultant components) of macroinvertebrate beta diversity and geographic and environmental distances. The datasets include macroinvertebrate data and explanatory data in the 30 freshwater lakes., , , # Datasets of 30 freshwater lakes including macroinvertebrate data and explanatory data

[https://doi.org/10.5061/dryad.qrfj6q5nh](https://doi.org/10.5061/dryad.qrfj6q5nh)

In order to examine how anthropogenic eutrophication modified the relationships between three facets (taxonomic, functional, and phylogenetic) of macroinvertebrate beta diversity and geographic and environmental distances across 30 freshwater lakes, we need to obtain basic macroinvertebrate data from 30 freshwater lakes.

## Description of the data and file structure

The datasets include macroinvertebrate data and explanatory data in the 30 freshwater lakes. We uploaded a total of 5 datasets.

The file \"env\" contains the environmental data of 30 freshwater lakes, the first column is the name of the lake, and the first row is the environmental factor. The column \"area\" refers to \"lake area\" in km². The column \"depth\" refers to \"water depth\" in m. The units of total nitrogen (TN), nitrate nitrogen (NO3-N), ammonium ni...