Bridgehead Effects and Role of Adaptive Evolution in Invasive Populations

Trends in Ecology & Evolution
Cleo Bertelsmeier, Laurent Keller

Abstract

Biological invasions are a major threat to biodiversity, agriculture, and human health. Invasive populations can be the source of additional new introductions, leading to a self-accelerating process whereby invasion begets invasion. This phenomenon, coined bridgehead effect, has been proposed to stem from the evolution of higher invasiveness in a primary introduced population. There is, however, no conclusive evidence that the success of bridgehead populations stems from the evolution of increased invasiveness. Instead, we argue that a high frequency of secondary introductions can be explained by increased abundance in the bridgehead region or the topology of human transport networks. We outline the type of evidence and experiments that are needed to demonstrate adaptive evolution and higher invasion success of introduced populations.

Citations

Jun 20, 2018·Molecular Ecology·Eyal PrivmanLaurent Keller
Jul 27, 2018·The Journal of Animal Ecology·Antoine FeldenMonica A M Gruber
Jul 18, 2019·Evolution; International Journal of Organic Evolution·Stéphanie SherpaLaurence Després
Aug 11, 2019·Ecological Applications : a Publication of the Ecological Society of America·Zihua ZhaoJames R Carey
Feb 23, 2020·Ecological Applications : a Publication of the Ecological Society of America·M Victoria LantschnerAndrew M Liebhold
Sep 9, 2019·Molecular Ecology·Nadège BélouardEric J Petit
Jul 7, 2020·The Journal of Animal Ecology·Piatã Santana MarquesRana El-Sabaawi
Mar 9, 2019·Molecular Ecology·Stéphanie SherpaLaurence Després
Oct 17, 2020·Nature Communications·Olivia K BatesCleo Bertelsmeier
Feb 14, 2021·Communications Biology·Alexander J BlumenfeldEdward L Vargo
Nov 2, 2020·The Journal of Animal Ecology·Jelena BujanCleo Bertelsmeier
Feb 6, 2021·Current Opinion in Insect Science·Cleo Bertelsmeier
Mar 24, 2021·Proceedings of the National Academy of Sciences of the United States of America·Jérôme M W Gippet, Cleo Bertelsmeier
May 19, 2021·Current Opinion in Insect Science·Louie H YangDylan J MacArthur-Waltz
Jun 29, 2021·Evolutionary Applications·Stéphanie Sherpa, Laurence Després
May 28, 2021·Molecular Ecology·Henry L NorthChris D Jiggins
Aug 25, 2021·Scientific Reports·Maria UrbańskaMałgorzata Ożgo
Oct 13, 2021·Current Biology : CB·Olivia K Bates, Cleo Bertelsmeier

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