Phylogenetic composition of native island floras influences naturalized alien species richness

0563614 - BÚ 2023 RIV DK eng J - Journal Article
Bach, W. - Kreft, H. - Craven, D. - König, C. - Schrader, J. - Taylor, A. - Dawson, W. - Essl, F. - Lenzner, B. - Marx, H. E. - Meyer, C. - Pergl, Jan - Pyšek, Petr - van Kleunen, M. - Winter, M. - Weigelt, P.
Phylogenetic composition of native island floras influences naturalized alien species richness.
Ecography. Roč. 2022, č. 11 (2022), č. článku e06227. ISSN 0906-7590. E-ISSN 1600-0587
R&D Projects: GA ČR(CZ) GX19-28807X
Institutional support: RVO:67985939
Keywords : islands * phylogenetic composition * native flora
OECD category: Ecology
Impact factor: 5.9, year: 2022
Method of publishing: Open access
https://doi.org/10.1111/ecog.06227

We tested whether the species richness of naturalized seed plants on 249 islands worldwide is related to the phylogenetic composition of their native floras. Our analysis showed an increase in naturalized species richness with increasing phy¬logenetic clustering of the native assemblages (i.e. native species more closely related than expected by chance). This effect, however, was smaller than the influence of native species richness and biogeographical factors, e.g. remoteness. Further, the effect of native phylogenetic structure on naturalized species richness was stronger for smaller islands, but this pattern was not consistent across all phylogenetic assem¬blage metrics. This finding suggests that the phylogenetic composition of native island floras may affect naturalized species richness, particularly on small islands where species are more likely to co-occur locally. Overall, we conclude that the composi¬tion of native island assemblages affects their susceptibility to plant naturalizations in addition to other socioeconomic and biogeographical factors, and should be considered when assessing invasion risks on islands.
Permanent Link: https://hdl.handle.net/11104/0335524