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dc.contributor.authorPyšek, Petr-
dc.contributor.authorBacher, Sven-
dc.contributor.authorChytrý, Milan-
dc.contributor.authorJarošík, Vojtěch-
dc.contributor.authorWild, Jan-
dc.contributor.authorCelesti-Grapow, Laura-
dc.contributor.authorGassó, Núria-
dc.contributor.authorKenis, Mark-
dc.contributor.authorLambdon, Philip-
dc.contributor.authorNentwig, Wolfgang-
dc.contributor.authorVilà, Montserrat-
dc.identifier.citationGlobal Ecology and Biogeography, 19 (2): 319-331 (2010)es_ES
dc.description.abstractAim To provide the first comparative overview on the current numbers of alien species that invade representative European terrestrial and freshwater habitats for a range of taxonomic groups. Location Europe. Methods Numbers of naturalized alien species of plants, insects, herptiles, birds and mammals occurring in 10 habitats defined according to the European Nature Information System (EUNIS) were obtained from 115 regional data sets. Only species introduced after ad 1500 were considered. Data were analysed by ANCOVA and regression trees to assess whether differences exist among taxonomic groups in terms of their habitat affinity, and whether the pattern of occurrence of alien species in European habitats interacts with macroecological factors such as insu- larity, latitude or area. Results The highest numbers of alien plant and insect species were found in human-made, urban or cultivated habitats; if controlled for habitat area in the region, wetland and riparian habitats appeared to support relatively high numbers of alien plant species too. Invasions by vertebrates were more evenly distributed among habitats, with aquatic and riparian, woodland and cultivated land most invaded. Mires, bogs and fens, grassland, heathland and scrub were generally less invaded. Habitat and taxonomic group explained most variation in the proportions of alien species occurring in individual habitats related to the total number of alien species in a region, and the basic pattern determined by these factors was fine-tuned by geographical variables, namely by the mainland–island contrast and latitude, and differed among taxonomic groups. Main conclusions There are two ecologically distinct groups of alien species (plants and insects versus vertebrates) with strikingly different habitat affinities. Invasions by these two contrasting groups are complementary in terms of habitat use, which makes an overall assessment of habitat invasions in Europe possible. Since numbers of naturalized species in habitats are correlated among taxa within these two groups, the data collected for one group of vertebrates, for example, could be used to estimate the habitat-specific numbers of alien species for other vertebrate groups with reasonable precision, and the same holds true for insects and plants.es_ES
dc.publisherBlackwell Publishinges_ES
dc.subjectcontinental scalees_ES
dc.subjecthabitat affinitieses_ES
dc.subjectinvasive specieses_ES
dc.subjectlevel of invasionses_ES
dc.titleContrasting patterns in the invasions of European terrestrial and freshwater habitats by alien plants, insects and vertebrateses_ES
dc.description.peerreviewedPeer reviewedes_ES
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