Native diversity buffers against severity of non-native tree invasions: [Inkl. Correction]
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Determining the drivers of non-native plant invasions is critical for managing native ecosystems and limiting the spread of invasive species1,2. Tree invasions in particular have been relatively overlooked, even though they have the potential to transform ecosystems and economies3,4. Here, leveraging global tree databases5–7, we explore how the phylogenetic and functional diversity of native tree communities, human pressure and the environment influence the establishment of non-native tree species and the subsequent invasion severity. We find that anthropogenic factors are key to predicting whether a location is invaded, but that invasion severity is underpinned by native diversity, with higher diversity predicting lower invasion severity. Temperature and precipitation emerge as strong predictors of invasion strategy, with non-native species invading successfully when they are similar to the native community in cold or dry extremes. Yet, despite the influence of these ecological forces in determining invasion strategy, we find evidence that these patterns can be obscured by human activity, with lower ecological signal in areas with higher proximity to shipping ports. Our global perspective of non-native tree invasion highlights that human drivers influence non-native tree presence, and that native phylogenetic and functional diversity have a critical role in the establishment and spread of subsequent invasions.
Originalsprog | Engelsk |
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Tidsskrift | Nature |
Vol/bind | 621 |
Sider (fra-til) | 773–781 |
ISSN | 0028-0836 |
DOI | |
Status | Udgivet - 2023 |
Bibliografisk note
Funding Information:
The authors acknowledge the Bernina Foundation and DOB Ecology for financial support. C.S.D. thanks the Swiss National Science Foundation (Postdoctoral Fellowship #TMPFP3_209925). C.S.D. also acknowledges funding from the Marc R. Benioff Revocable Trust, which, in collaboration with the World Economic Forum, also made this work possible. D.S.M. thanks the Swiss National Science Foundation (Ambizione Grant #PZ00P3_193612). The authors thank L. Mo for assistance in compiling the author list and G. Smith for early discussions about invasion severity. J.C.S. considers this work a contribution to Center for Ecological Dynamics in a Novel Biosphere (ECONOVO), funded by Danish National Research Foundation (grant DNRF173) and his VILLUM Investigator project ‘Biodiversity Dynamics in a Changing World’, funded by VILLUM FONDEN (grant 16549). P. Schall thanks the Deutsche Forschungsgemeinschaft (DFG) Priority Program 1374 Biodiversity Exploratories. G.A. thanks the French National Forest Inventory and the Italian Forest Inventory; G.A. was supported by the Italian National Recovery Plan through the National Biodiversity Future Center. Financial support from Monafor network in Mexico was funded by the National Forestry Commission (CONAFOR), Council of Science and Technology of the State of Durango (COCYTED), the Natural Environment Research Council, UK (NERC; NE/T011084/1), and local support of Ejidos and Comunidades.
Publisher Copyright:
© 2023, The Author(s).
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