Local environment rather than past climate determines community composition of mountain stream macroinvertebrates across Europe

作者：Cesc Múrria, Núria Bonada‬‬‬‬‬‬‬‬‬‬‬, Mark Vellend, Carmen Zamora‐Muñoz, Javier Alba‐Tercedor, Carmen E. Sáinz-Cantero, Josefina Garrido, Raúl Acosta, Majida El Alami, José Barquín, Tomáš Derka, Mario Álvarez‐Cabria, Marta Sáinz‐Bariain, Ana Filipa Filipe, Alfried P. Vogler · 发表于：Molecular Ecology · 年份：2017 · DOI：10.1111/mec.14346 · 被引用次数：51 · 研究领域：Freshwater macroinvertebrate diversity and ecology、Environmental DNA in Biodiversity Studies、Species Distribution and Climate Change

Community assembly is determined by a combination of historical events and contemporary processes that are difficult to disentangle, but eco-evolutionary mechanisms may be uncovered by the joint analysis of species and genetic diversity across multiple sites. Mountain streams across Europe harbour highly diverse macroinvertebrate communities whose composition and turnover (replacement of taxa) among sites and regions remain poorly known. We studied whole-community biodiversity within and among six mountain regions along a latitudinal transect from Morocco to Scandinavia at three levels of taxonomic hierarchy: genus, species and haplotypes. Using DNA barcoding of four insect families (>3100 individuals, 118 species) across 62 streams, we found that measures of local and regional diversity and intraregional turnover generally declined slightly towards northern latitudes. However, at all hierarchical levels we found complete (haplotype) or high (species, genus) turnover among regions (and even among sites within regions), which counters the expectations of Pleistocene postglacial northward expansion from southern refugia. Species distributions were mostly correlated with environmental conditions, suggesting a strong role of lineage- or species-specific traits in determining local and latitudinal community composition, lineage diversification and phylogenetic community structure (e.g., loss of Coleoptera, but not Ephemeroptera, at northern sites). High intraspecific genetic struc...