Data set from: Phylogenetic structure of alien plant species pools from European donor habitats

Aim. Many plant species native to Europe have naturalized worldwide. We
tested whether the phylogenetic structure of the species pools of European
habitats is related to the proportion of species from each habitat that
have naturalized outside Europe (habitat’s donor role) and whether the
donated species are more phylogenetically related to each other than
expected by chance. Location. Europe (native range), the rest of the World
(invaded range). Time period. Last c. 100 years. Major taxa studied.
Angiospermae. Methods. We selected 33 habitats in Europe and analyzed
their species pools, including 9,636 plant species, of which 2,293 have
naturalized outside Europe. We assessed the phylogenetic structure of each
habitat as the difference between the observed and expected mean pairwise
phylogenetic distance (MPD) for (a) the whole species pool and (b)
subgroups of species that have naturalized outside Europe and those that
have not. We used generalized linear models to test for the effects of the
phylogenetic structure and the level of human influence on the habitats’
donor role. Results. Habitats strongly to moderately influenced by humans
often showed phylogenetically clustered species pools. Within the
clustered species pools, those species that have naturalized outside
Europe showed a random phylogenetic structure. Species pools of less
human-influenced natural habitats varied from phylogenetically clustered
to overdispersed, with donated naturalized species also often showing
random patterns within the species pools. Donor roles in both habitat
groups increased with increasing MPD within habitats. Main conclusions.
European human-influenced habitats donate closely related species that
often naturalize in disturbed habitats outside their native range. Natural
habitats donate species from different lineages with various ecological
strategies that allow them to succeed in different habitats in the invaded
range. However, in most cases, the naturalized species donated are
phylogenetically random subsets of the donor habitats’ species pools. Aim.
Many plant species native to Europe have naturalized worldwide. We tested
whether the phylogenetic structure of the species pools of European
habitats is related to the proportion of species from each habitat that
have naturalized outside Europe (habitat’s donor role) and whether the
donated species are more phylogenetically related to each other than
expected by chance. Location. Europe (native range), the rest of the World
(invaded range). Time period. Last c. 100 years. Major taxa studied.
Angiospermae. Methods. We selected 33 habitats in Europe and analyzed
their species pools, including 9,636 plant species, of which 2,293 have
naturalized outside Europe. We assessed the phylogenetic structure of each
habitat as the difference between the observed and expected mean pairwise
phylogenetic distance (MPD) for (a) the whole species pool and (b)
subgroups of species that have naturalized outside Europe and those that
have not. We used generalized linear models to test for the effects of the
phylogenetic structure and the level of human influence on the habitats’
donor role. Results. Habitats strongly to moderately influenced by humans
often showed phylogenetically clustered species pools. Within the
clustered species pools, those species that have naturalized outside
Europe showed a random phylogenetic structure. Species pools of less
human-influenced natural habitats varied from phylogenetically clustered
to overdispersed, with donated naturalized species also often showing
random patterns within the species pools. Donor roles in both habitat
groups increased with increasing MPD within habitats. Main conclusions.
European human-influenced habitats donate closely related species that
often naturalize in disturbed habitats outside their native range. Natural
habitats donate species from different lineages with various ecological
strategies that allow them to succeed in different habitats in the invaded
range. However, in most cases, the naturalized species donated are
phylogenetically random subsets of the donor habitats’ species pools.