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The Role of Indirect Effects in Coevolution along the Mutualism-Antagonism Continuum


Pedraza, Fernando; Liu, Hanlun; Gawecka, Klementyna A; Bascompte, Jordi (2024). The Role of Indirect Effects in Coevolution along the Mutualism-Antagonism Continuum. The American Naturalist, 203(1):28-42.

Abstract

The web of interactions in a community drives the coevolution of species. Yet it is unclear how the outcome of species interactions influences the coevolutionary dynamics of communities. This is a pressing matter, as changes to the outcome of interactions may become more common with human-induced global change. Here, we combine network and evolutionary theory to explore coevolutionary outcomes in communities harboring mutualistic and antagonistic interactions. We show that as the ratio of mutualistic to antagonistic interactions decreases, selection imposed by direct partners outweighs that imposed by indirect partners. This weakening of indirect effects results in communities composed of species with dissimilar traits and fast rates of adaptation. These changes are more pronounced when specialist consumers are the first species to engage in antagonistic interactions. Hence, a shift in the outcome of species interactions may reverberate across communities and alter the direction and speed of coevolution.

Abstract

The web of interactions in a community drives the coevolution of species. Yet it is unclear how the outcome of species interactions influences the coevolutionary dynamics of communities. This is a pressing matter, as changes to the outcome of interactions may become more common with human-induced global change. Here, we combine network and evolutionary theory to explore coevolutionary outcomes in communities harboring mutualistic and antagonistic interactions. We show that as the ratio of mutualistic to antagonistic interactions decreases, selection imposed by direct partners outweighs that imposed by indirect partners. This weakening of indirect effects results in communities composed of species with dissimilar traits and fast rates of adaptation. These changes are more pronounced when specialist consumers are the first species to engage in antagonistic interactions. Hence, a shift in the outcome of species interactions may reverberate across communities and alter the direction and speed of coevolution.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
08 Research Priority Programs > Global Change and Biodiversity
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Scopus Subject Areas:Life Sciences > Ecology, Evolution, Behavior and Systematics
Uncontrolled Keywords:Ecology, Evolution, Behavior and Systematics, ecological networks, species interactions, trait matching
Language:English
Date:1 January 2024
Deposited On:24 Jan 2024 09:50
Last Modified:30 Jun 2024 01:37
Publisher:University of Chicago Press
ISSN:0003-0147
OA Status:Green
Publisher DOI:https://doi.org/10.1086/727472
PubMed ID:38207144
  • Content: Published Version
  • Language: English
  • Description: © 2024 by The University of Chicago.
  • Licence: Creative Commons: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)