Data and R script used in the manuscript " Occurrence of topmouth gudgeon, <em>Pseudorasbora parva</em>, in relation to environmental factors in lowland streams and canals "

One file is a data table with P. parva presence and environmental variables. Another file is an R script used to model the occurrence probability of the species with an information theoretic approach.其一为包含P. parva物种存在记录及环境变量的数据表。另一为基于信息论方法构建该物种发生概率模型的R脚本。