Historical plant introductions predict current insect invasions

Aymeric Bonnamour,R. Blake,Andrew M. Liebhold,H. Nahrung,A. Roques,Rebecca M. Turner,Takehiko Yamanaka,C. Bertelsmeier

Published 2023 in Proceedings of the National Academy of Sciences of the United States of America

ABSTRACT

Significance Invasive insects severely impair ecosystem functioning and impact human societies. It is therefore urgent to better predict and prevent future invasions. Using statistical models, we show that nonnative plant introductions are a major driver of insect invasions, and that insect invasions lag behind plant invasions. In the near future, new insect invasions are estimated to increase by 35% worldwide based on recent nonnative plant introductions. The Afrotropics, the Neotropics, and Indomalaya are the regions most at risk of future invasions. Our results highlight that limiting the introduction and spread of nonnative plants will be key to preventing future insect invasions.

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