Global aquatic Isoëtes Database (acronym GaID) as of 2024

Isoëtes are iconic but understudied wetland plants, despite having suffered severe losses globally mainly because of alterations in their habitats. We therefore provide the first global, comprehensive data set of aquatic Isoëtes and their habitats. We compiled a global database that includes all known environmental data collected from 1935 to 2023 regarding aquatic Isoëtes. This resulted in 2,179 records. The environmental data taken at Isoëtes' sampling stations varied but may include measures of water quality, water depth, and substrate composition.

水韭属（Isoëtes）植物是一类兼具标志性特征但研究程度较低的湿地类群，尽管其全球种群已遭受严重衰退，主要诱因是栖息地的改变。为此，我们首次发布了涵盖全球水生水韭属植物及其栖息地的综合数据集。我们整合了1935年至2023年间采集的所有已知水生水韭属植物相关环境数据，最终得到2179条记录。采集自水韭属植物样地的环境数据存在差异，可涵盖水质、水深及基质组成等多项测定指标。