Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1098/rspb.2020.1070
Lizenz creative commons licence
Titel (primär) Phylogenetic and functional distinctiveness explain alien plant population responses to competition
Autor Levin, S.C.; Crandall, R.M.; Pokoski, T.; Stein, C.; Knight, T.M.
Quelle Proceedings of the Royal Society B-Biological Sciences
Erscheinungsjahr 2020
Department BZF; iDiv
Band/Volume 287
Heft 1930
Seite von art. 20201070
Sprache englisch
Keywords competition; phylogeny; demography; functional traits; invasions
Abstract Several invasion hypotheses predict a positive association between phylogenetic and functional distinctiveness of aliens and their performance, leading to the idea that distinct aliens compete less with their resident communities. However, synthetic pattern relationships between distinctiveness and alien performance and direct tests of competition as the driving mechanism have not been forthcoming. This is likely because different patterns are observed at different spatial grains, because functional trait and phylogenetic information are often incomplete, and because of the need for competition experiments that measure demographic responses across a variety of alien species that vary in their distinctiveness. We conduct a competitor removal experiment and parameterize matrix population and integral projection models for 14 alien plant species. More novel aliens compete less strongly with co-occurring species in their community, but these results dissipate at a larger spatial grain of investigation. Further, we find that functional traits used in conjunction with phylogeny improve our ability to explain competitive responses. Our investigation shows that competition is an important mechanism underlying the differential success of alien species.
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Levin, S.C., Crandall, R.M., Pokoski, T., Stein, C., Knight, T.M. (2020):
Phylogenetic and functional distinctiveness explain alien plant population responses to competition
Proc. R. Soc. B-Biol. Sci. 287 (1930), art. 20201070 10.1098/rspb.2020.1070