Some habitats are invaded by few (or single) species, which attain a high cover, transforming the whole ecosystem. It must be noted, however, that the number of alien species occurring in a given habitat does not relate to the severity of the impact of invasion in that habitat. Most of the habitats were colonized by very few alien species or completely lacked them, except for sandy coasts, naturally-disturbed riverbeds, and synanthropic habitats. The investigated habitats differed strongly in their level of invasion by alien species, ranging from 0 to 15.6% of aliens of all species recorded. Our analysis shows that annual and woody species are the most represented life forms in the alien flora of Sicily and that alien species tend to have a longer flowering period than the native species. The fidelity of alien species to individual habitats was calculated using the phi coefficient. Representation of different life forms and phenological patterns was compared between alien and native species. The invasiveness of each species was expressed in terms of its absolute and percentage frequency. Vegetation plots were classified based on the EUNIS classification of European habitats. We used a large dataset of plant species presences/absences in vegetation plots to analyze the invasion patterns across habitats considering biogeography, life form and phenology of alien plants. Here we compare the levels of vascular plant invasion across habitats and plant communities of Sicily. You Have Been Successfully Unsubscribed From The Newsletter.Levels of plant invasions in different habitat types were assessed in several regional studies, but few of them were from the Mediterranean. Sorry, Failed To Unsubscribe From The Newsletter.
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