Evolutionary rescue at different rates of environmental change is affected by trade‐offs between short‐term performance and long‐term survival
Liukkonen, M., Kronholm, I., & Ketola, T. (2021). Evolutionary rescue at different rates of environmental change is affected by trade‐offs between short‐term performance and long‐term survival. Journal of Evolutionary Biology, 34(7), 1177-1184. https://doi.org/10.1111/jeb.13797
Published inJournal of Evolutionary Biology
DisciplineEkologia ja evoluutiobiologiaBiologisten vuorovaikutusten huippututkimusyksikköEcology and Evolutionary BiologyCentre of Excellence in Biological Interactions Research
© 2021 The Authors. Journal of Evolutionary Biology published by John Wiley & Sons Ltd on behalf of European Society for Evolutionary Biology
As climate change accelerates and habitats free from anthropogenic impacts diminish, populations are forced to migrate or to adapt quickly. Evolutionary rescue (ER) is a phenomenon, in which a population is able to avoid extinction through adaptation. ER is considered to be more likely at slower rates of environmental change. However, the effects of correlated characters on evolutionary rescue are seldom explored yet correlated characters could play a major role in ER. We tested how evolutionary background in different fluctuating environments and the rate of environmental change affect the probability of ER by exposing populations of the bacteria Serratia marcescens to two different rates of steady temperature increase. As suggested by theory, slower environmental change allowed populations to grow more effectively even at extreme temperatures, but at the expense of long‐term survival at extreme conditions due to correlated selection. Our results indicate important gap of knowledge on the effects of correlated selection during the environmental change and on evolutionary rescue at differently changing environments. ...
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Related funder(s)Research Council of Finland
Funding program(s)Academy Research Fellow, AoF
Additional information about fundingWe thank the Academy of Finland (IK #321584, TK #278751) for funding and K. Viipale for insightful discussions.
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