RT info:eu-repo/semantics/article T1 MtDNA metagenomics reveals large-scale invasion of belowground arthropod communities by introduced species A1 Cicconardi, Francesco A1 Borges, Paulo A. V. A1 Strasberg, Dominique A1 Oromí, Pedro A1 López, Heriberto A1 Pérez-Delgado, Antonio J. A1 Casquet, Juliane A1 Caujapé‑Castells, Juli A1 Fernández-Palacios, José María A1 Thébaud, Christophe A1 Emerson, Brent C. K1 introduced species K1 invertebrate K1 island biogeography K1 mesofauna K1 soil AB Using a series of standardized sampling plots within forest ecosystems in remote oceanicislands, we reveal fundamental differences between the structuring of abovegroundand belowground arthropod biodiversity that are likely due to large-scalespecies introductions by humans. Species of beetle and spider were sampled almostexclusively from single islands, while soil-dwelling Collembola exhibited more thantenfold higher species sharing among islands. Comparison of Collembola mitochondrialmetagenomic data to a database of more than 80 000 Collembola barcodesequences revealed almost 30% of sampled island species are genetically identical, ornear identical, to individuals sampled from often very distant geographic regions ofthe world. Patterns of mtDNA relatedness among Collembola implicate humanmediatedspecies introductions, with minimum estimates for the proportion of introducedspecies on the sampled islands ranging from 45% to 88%. Our results call formore attention to soil mesofauna to understand the global extent and ecological consequencesof species introductions. PB John Wiley & Sons Ltd YR 2017 FD 2017 LK http://riull.ull.es/xmlui/handle/915/17818 UL http://riull.ull.es/xmlui/handle/915/17818 LA en DS Repositorio institucional de la Universidad de La Laguna RD 25-nov-2024