Department of Earth and Marine Science, University of Palermo, Viale delle Scienze, 90128, Palermo, Italy.
Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, 2039-2207 Main Mall, Vancouver, BC, V6T 1Z4, Canada.
Sci Rep. 2021 Nov 29;11(1):23099. doi: 10.1038/s41598-021-02525-3.
The freshwater jellyfish Craspedacusta sowerbii is one of the most widespread invasive species, but its global distribution remains uncertain due to ephemeral appearances and general lack of information in various aquatic environments. The aim of this study was to map current and future distributions (2050 and 2100) using Species Distribution Models allowing to visualize the habitat suitability and make projections of its changes under potential climate change scenarios. Except in Oceania where the range decreased, an expansion of C. sowerbii was projected during the next century under modeled future scenarios being most intensive during the first half of the century. The present study shows that the expansion of C. sowerbii worldwide would be facilitated mainly by precipitation, vapor pressure, and temperature. The predictions showed that this species over the eighty years will invade high-latitude regions in both hemispheres with ecological consequences in already threatened freshwater ecosystems.
淡水水母桃花水母是分布最广的入侵物种之一，但由于其短暂的出现和在各种水生环境中普遍缺乏信息，其全球分布仍不确定。本研究旨在利用物种分布模型绘制当前和未来的分布（2050 年和 2100 年），使我们能够直观地了解其栖息地适宜性，并预测在潜在气候变化情景下其分布的变化。除了大洋洲的范围缩小外，预计在未来的模型情景下，桃花水母的分布范围将在本世纪内扩大，其中本世纪上半叶的扩张最为剧烈。本研究表明，降水、蒸汽压和温度将主要促进桃花水母在全球范围内的扩张。预测表明，在未来 80 年内，该物种将入侵两个半球的高纬度地区，这将对已经受到威胁的淡水生态系统产生生态后果。
