Global patterns of phylogenetic relatedness of invasive flowering plants

Author:

Qian Hong12ORCID

Affiliation:

1. CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany Chinese Academy of Sciences Kunming China

2. Research and Collections Center Illinois State Museum Springfield Illinois USA

Abstract

AbstractAimThe ability of predicting which naturalized non‐native species are likely to become invasive can help manage and prevent species invasions. The goal of this study is to test whether invasive angiosperm (flowering plant) species are a phylogenetically clustered subset of naturalized species at global, continental and regional scales, and to assess the relationships of phylogenetic relatedness of invasive species with climate condition (temperature and precipitation).LocationGlobal.Time periodCurrent.TaxonAngiosperms (flowering plants).MethodsThe globe is divided into 290 regions, which are grouped into seven biogeographic (continental) regions. Two phylogenetic metrics (net relatedness index and nearest taxon index), which represent different evolutionary depths, are used to quantify phylogenetic relatedness of invasive angiosperms, with respect to different tailor‐made species pools. Phylogenetic relatedness of invasive angiosperms is related to climatic variables.ResultsThe global assemblage of invasive angiosperm species is a strongly phylogenetically clustered subset of the species of the entire global angiosperm flora. Most invasive angiosperm assemblages are a phylogenetically clustered subset of their respective naturalized species pools, and phylogenetic clustering reflecting shallow evolutionary history is greater than that reflecting deep evolutionary history. In general, the phylogenetic relatedness of invasive species is greater in regions with lower temperature and precipitation across the world.Main conclusionsThe finding that invasive angiosperm assemblages across the globe are, in general, phylogenetically clustered subsets of their respective naturalized species pools has significant implications in biological conservation, particularly in predicting and controlling invasive species based on phylogenetic relatedness among naturalized species.

Publisher

Wiley

Subject

Ecology, Evolution, Behavior and Systematics

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