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Competition for food affects the strength of reproductive interference and its consequences for species coexistence

2025-05Journal article Open access
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dc.contributor.authorCruz, Miguel A.
dc.contributor.authorGodoy, Oscar
dc.contributor.authorDe mendonça fragata almeida, Inês
dc.contributor.authorSousa, Vitor C
dc.contributor.authorMagalhães, Sara
dc.contributor.authorZélé, Flore
dc.date.accessioned2025-06-18T14:57:11Z
dc.date.available2025-06-18T14:57:11Z
dc.date.issued2025-05
dc.description.abstractCompetition for food and reproductive interference (negative interspecific sexual interactions) have been identified as major drivers of species exclusion. Still, how these biotic interactions jointly determine competitive dominance remains largely unknown. We tackle this by coupling population models and laboratory experiments with two sibling species of spider mites. Using experiments specifically designed to measure the single and combined effects of food competition and reproductive interference, we first show that the strength and symmetry of reproductive interference between species changes in the presence of food competition. Next, we show that population models incorporating each type of interaction alone lead to markedly different predictions, from systematic exclusion of one of the two species under food competition to priority effects instead favouring this same species (the inferior competitor for food) under the sole effect of reproductive interference. Moreover, accounting for the observed reduction in the strength of reproductive interference in the presence of food competition changes the threshold frequency determining the dominant competitor when both interactions are at play, from equal chances for the two species to exclude the other depending on their initial frequency to favouring the superior competitor for food except when it is extremely rare. Finally, we showed that the model generates accurate predictions for population dynamics in an independent population cage experiment, indicating that our approach captures the most relevant processes governing the outcomes of interactions between competing spider mite species. Altogether, our results suggest that trophic interactions can modulate sexual interactions, significantly impacting population dynamics and competitive outcomes. Hence, the joint consideration of food competition and reproductive interference is critical to accurately predict and understand species coexistence.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCruz, M. A., Godoy, O., Fragata, I., Sousa, V. C., Magalhães, S., & Zélé, F. (2025). Competition for food affects the strength of reproductive interference and its consequences for species coexistence. Functional Ecology, 00, 1–16. https://doi.org/10.1111/1365-2435.70072pt_PT
dc.identifier.doi10.1111/1365-2435.70072pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/101625
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherBritish Ecological Societypt_PT
dc.relationFundação para a Ciência e a Tecnologia. Grant Numbers: CEECIND/02616/2018, CEECINST/00032/2018/CP1523/CT0008, SFRH/BD/136454/2018, UIDB/00329/2021, UIDB/00329/2025pt_PT
dc.relationEuropean Research Council. Grant Number: GA 725419pt_PT
dc.relationMinisterio de Economía y Competitividad. Grant Number: CNS2023-144337pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.titleCompetition for food affects the strength of reproductive interference and its consequences for species coexistencept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleFunctional Ecologypt_PT
person.familyNameCruz
person.familyNameLopes de Mendonça Fragata Almeida
person.familyNameMartins Conde e Sousa
person.familyNameMagalhaes
person.givenNameMiguel
person.givenNameInês Regina
person.givenNameVitor
person.givenNamesara
person.identifierResearcherID: I-9876-2014
person.identifierP-1871-2016
person.identifier.ciencia-id7913-A2CA-DD64
person.identifier.ciencia-idF812-23C0-FEC5
person.identifier.ciencia-id5E17-4632-C1FF
person.identifier.ciencia-id9111-5189-F926
person.identifier.orcid0000-0003-2877-4086
person.identifier.orcid0000-0001-6865-1510
person.identifier.orcid0000-0003-3575-0875
person.identifier.orcid0000-0002-8609-7768
person.identifier.ridB-9673-2012
person.identifier.scopus-author-id24474345000
person.identifier.scopus-author-id23989723700
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication8d71cb1e-71e1-4c3f-baf3-040fd42a8e35
relation.isAuthorOfPublication56a3ed3e-c763-4ecc-855d-2ac479a1585b
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relation.isAuthorOfPublication.latestForDiscovery56a3ed3e-c763-4ecc-855d-2ac479a1585b

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