Exotic taxa less related to native species are more invasive.


Autoria(s): Strauss S.Y.; Webb C.O.; Salamin N.
Data(s)

2006

Resumo

Some species introduced into new geographical areas from their native ranges wreak ecological and economic havoc in their new environment. Although many studies have searched for either species or habitat characteristics that predict invasiveness of exotic species, the match between characteristics of the invader and those of members of the existing native community may be essential to understanding invasiveness. Here, we find that one metric, the phylogenetic relatedness of an invader to the native community, provides a predictive tool for invasiveness. Using a phylogenetic supertree of all grass species in California, we show that highly invasive grass species are, on average, significantly less related to native grasses than are introduced but noninvasive grasses. The match between the invader and the existing native community may explain why exotic pest species are not uniformly noxious in all novel habitats. Relatedness of invaders to the native biota may be one useful criterion for prioritizing management efforts of exotic species.

Identificador

http://serval.unil.ch/?id=serval:BIB_6D2C2EF3666A

isbn:0027-8424 (Print)

pmid:16581902

doi:10.1073/pnas.0508073103

isiid:000236896200038

Idioma(s)

en

Fonte

Proceedings of the National Academy of Sciences of the United States of America, vol. 103, no. 15, pp. 5841-5845

Palavras-Chave #California; Climate; Geography; Humans; Phylogeny; Plants/classification; Poaceae/classification; Poaceae/physiology; Species Specificity
Tipo

info:eu-repo/semantics/article

article