Show simple item record

dc.contributor.authorRoura-Pascual, N.
dc.contributor.authorSanders, N.J.
dc.contributor.authorHui, C.
dc.date.accessioned2016-10-27T12:08:58Z
dc.date.available2016-10-27T12:08:58Z
dc.date.issued2016
dc.identifier.citationRoura-Pascual, N.; Sanders, N.J.; Hui, C. (2016) The distribution and diversity of insular ants: do exotic species play by different rules? Global Ecology and Biogeography, 25(6): 642-654en
dc.identifier.issn1466-822Xen
dc.identifier.urihttp://hdl.handle.net/123456789/2104
dc.description.abstractAim To examine the relationship between island characteristics (area, distance to the nearest continent, climate and human population size) and ant species richness, as well as the factors underlying global geographical clustering of native and exotic ant composition on islands. Location One hundred and two islands from 20 island groups around the world. Methods We used spatial linear models that consider the spatial structure of islands to examine patterns of ant species richness. We also performed modularity analyses to identify clusters of islands hosting a similar suite of species and constructed conditional inference trees to assess the characteristics of islands that explain the formation of these island–ant groups. Results Island area was the best predictor of ant species richness. However, distance to the nearest continent was an important predictor of native ant species richness, as was human population size for exotic species richness. Native species appear slightly more modulated (i.e. well grouped in species assemblages that are present over a distinct cluster of islands) than are exotic species. Exotic species, while still exhibiting some modularity, tended to be widely distributed among island groups. Interestingly, ocean currents accounted for most of the variation in modularity and thus species composition for both native and exotic ant species. Main conclusions Contrary to previous work, both native and exotic species appeared to be confined to particular island regions, and patterns in the distribution of both native and exotic species were limited by a similar suite of factors. However, the distribution of exotic ant species appeared to be more influenced by human-related variables and less structured relative to those of native ant species, perhaps due to the long-term (and increasing) influence of human-mediated dispersal that favours exotic species.en
dc.format.extent1201148 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherJohn Wiley & Sons Ltden
dc.subjectBiodiversityen
dc.subjectbiological invasionsen
dc.subjectHymenopteraen
dc.subjectFormicidaeen
dc.subjectinsular biogeographyen
dc.subjectinvasivenessen
dc.subjectnativenessen
dc.subjectspatial distributionen
dc.subjectspecies richnessen
dc.titleThe distribution and diversity of insular ants: do exotic species play by different rules?en
dc.typeJournalArticlesen
dc.cibjournalGlobal Ecology and Biogeographyen
dc.cibprojectNAen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record