Climate‐associated variation in the drivers of benthic macroinvertebrate species–area relationships across shallow freshwater lakes

作者：Hu He, Yan Li, Kai Peng, You Zhang, Robert P. Rutter, Jussi Jyväsjärvi, Heikki Hämäläinen, David Kelly, Jonathan M. Chase, Chrysoula Ntislidou, Olga Loskutova, Javier Alcocer, Daniele Jovem‐Azevêdo, Joseline Molozzi, Jianjun Wang, Min Zhang, Kuanyi Li, Zhengwen Liu, Liselotte Sander Johansson, Martin Søndergaard, Yongjiu Cai, Haijun Wang, Erik Jeppesen · 发表于：Journal of Animal Ecology · 年份：2023 · DOI：10.1111/1365-2656.14028 · 被引用次数：7 · 研究领域：Aquatic Invertebrate Ecology and Behavior、Marine Biology and Ecology Research、Fish Ecology and Management Studies

The island species-area relationship (ISAR) describes how species richness increases with increasing area of a given island or island-like habitat, such as freshwater lakes. While the ISAR is one of the most common phenomena observed in ecology, there is variation in both the form of the relationship and its underlying mechanisms. We compiled a global data set of benthic macroinvertebrates from 524 shallow freshwater lakes, ranging from 1 to 293,300 ha in area. We used individual-based rarefaction to determine the degree to which ISAR was influenced by mechanisms other than passive sampling (larger islands passively sample more individuals from the regional pool and, therefore, have more species than smaller islands), which would bias results away from expected relationships between rarefied species richness (and other measures that capture relative abundances) and lake area. We also examined how climate may alter the shape of the ISARs. We found that both rarefied species richness (the number of species standardized by area or number of individuals) and a measure of evenness emphasizing common species exhibit shallow slopes in relationships with lake area, suggesting that the expected ISARs in these lakes most likely result from passive sampling. While there was considerable variation among ISARs across the investigated lakes, we found an overall positive rarefied ISAR for lakes in warm (i.e. tropical/subtropical) regions (n = 195), and in contrast, an overall negative raref...