Data and code from: River network connectivity reductions dominate declines in the richness of plateau fish species under climate change in the upper Yangtze River Basin

Anthropogenic climate change and disrupted river network connectivity are major factors affecting freshwater fish richness. However, the distribution patterns of this parameter under the combined influence of climate change and reduced river connectivity resulting from hydroelectric development remain unclear. Here, we projected shifts in the richness of Schizothoracinae fish species, the most dominant and economically significant type of fish on and around the Qinghai‒Tibet Plateau. Stacked species distribution modeling and predictions were explored to simulate the range shifts of twenty species in the upper Yangtze River Basin under the impacts of connectivity and climate changes. The results revealed that river connectivity reduction dominated the richness shifts and loss in Schizothoracinae fish species. Higher-quality fish habitats are more susceptible to the impacts of connectivity reduction. Although the connectivity reduction caused by dam construction is associated with a sligh..., , , # Data and code from: River network connectivity reductions dominate declines in the richness of plateau fish species under climate change in the upper Yangtze River Basin

[https://doi.org/10.5061/dryad.g1jwstr1q](https://doi.org/10.5061/dryad.g1jwstr1q)

## Description of the data and file structure

The dataset includes the not publicly accessible environmental factors, occurrence data and all the code needed to establish and run the Species Distribution Models. Readers can reproduce our work based on these data.

### Files

#### File: data\_upload.zip

1. Occurrences.csv

It contains the latitude and longitude coordinates of the 20 fish species in this study from 2001 to 2020, which can be directly read by R using \"read.csv\" function, which does not depend on any package. The coordinate system used is WGS1984  and geographic coordinates in this dataset have already been generalized to a grid.
2. River_Network_Connectivity_Before_2000.tif

River network connectivity data for th...,