A quantitative analysis of temporal turnover in aquatic species assemblages across ecosystems

摘要: Recent meta-analyses have shown that beta diversity through space is jointly driven by species traits, geographical gradients, and ecosystem properties. Spatial variation is, however, only one aspect of diversity. The other component in assemblages time, temporal turnover. We examined the decrease assemblage similarity time aquatic ecosystems relation to several ecological, physical, factors using an extensive data set derived from literature. was first divided into intra-annual interannual studies depending on extent studies. Sampling duration most significant variables affecting degree turnover, we found turnover faster with shorter extent. Our results further suggested rate increased increasing size, thus contradicting general species-time-area relationship. Temporal also varied among types: lake showed than stream or marine set. exhibited large-scale variation, as there a latitudinal gradient Turnover tropics set, but pattern reversed where at high latitudes. Finally, related organism characteristics, larger organisms active mobility slower smaller organisms. suggest not uniform across taxonomic groups. findings important consequences for understanding how different biotic track changes environment resilient are toward such changes.