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Change in prey genotype frequency rescues predator from extinction
Indirect evolutionary rescue (IER) is a mechanism where a non-evolving species is saved from extinction in an otherwise lethal environment by evolution in an interacting species. This process has been described in a predator–prey model, where extinction of the predator is prevented by a shift in the...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9214283/ https://www.ncbi.nlm.nih.gov/pubmed/35754995 http://dx.doi.org/10.1098/rsos.220211 |
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author | Hermann, Ruben Joseph Becks, Lutz |
author_facet | Hermann, Ruben Joseph Becks, Lutz |
author_sort | Hermann, Ruben Joseph |
collection | PubMed |
description | Indirect evolutionary rescue (IER) is a mechanism where a non-evolving species is saved from extinction in an otherwise lethal environment by evolution in an interacting species. This process has been described in a predator–prey model, where extinction of the predator is prevented by a shift in the frequency of defended towards undefended prey when reduced predator densities lower selection for defended prey. We test here how increased mortality and the initial frequencies of the prey types affect IER. Combining the analysis of model simulations and experiments with rotifers feeding on algae we show IER in the presence of increased predator mortality. We found that IER was dependent on the ability of the prey to evolve as well as on the frequency of the defended prey. High initial frequencies of defended prey resulted in predator extinction despite the possibility for prey evolution, as the increase in undefended prey was delayed too much to allow predator rescue. This frequency dependency for IER was more pronounced for higher predator mortalities. Our findings can help informing the development of conservation and management strategies that consider evolutionary responses in communities to environmental changes. |
format | Online Article Text |
id | pubmed-9214283 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-92142832022-06-24 Change in prey genotype frequency rescues predator from extinction Hermann, Ruben Joseph Becks, Lutz R Soc Open Sci Ecology, Conservation and Global Change Biology Indirect evolutionary rescue (IER) is a mechanism where a non-evolving species is saved from extinction in an otherwise lethal environment by evolution in an interacting species. This process has been described in a predator–prey model, where extinction of the predator is prevented by a shift in the frequency of defended towards undefended prey when reduced predator densities lower selection for defended prey. We test here how increased mortality and the initial frequencies of the prey types affect IER. Combining the analysis of model simulations and experiments with rotifers feeding on algae we show IER in the presence of increased predator mortality. We found that IER was dependent on the ability of the prey to evolve as well as on the frequency of the defended prey. High initial frequencies of defended prey resulted in predator extinction despite the possibility for prey evolution, as the increase in undefended prey was delayed too much to allow predator rescue. This frequency dependency for IER was more pronounced for higher predator mortalities. Our findings can help informing the development of conservation and management strategies that consider evolutionary responses in communities to environmental changes. The Royal Society 2022-06-22 /pmc/articles/PMC9214283/ /pubmed/35754995 http://dx.doi.org/10.1098/rsos.220211 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Ecology, Conservation and Global Change Biology Hermann, Ruben Joseph Becks, Lutz Change in prey genotype frequency rescues predator from extinction |
title | Change in prey genotype frequency rescues predator from extinction |
title_full | Change in prey genotype frequency rescues predator from extinction |
title_fullStr | Change in prey genotype frequency rescues predator from extinction |
title_full_unstemmed | Change in prey genotype frequency rescues predator from extinction |
title_short | Change in prey genotype frequency rescues predator from extinction |
title_sort | change in prey genotype frequency rescues predator from extinction |
topic | Ecology, Conservation and Global Change Biology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9214283/ https://www.ncbi.nlm.nih.gov/pubmed/35754995 http://dx.doi.org/10.1098/rsos.220211 |
work_keys_str_mv | AT hermannrubenjoseph changeinpreygenotypefrequencyrescuespredatorfromextinction AT beckslutz changeinpreygenotypefrequencyrescuespredatorfromextinction |