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The role of intrasexual competition on the evolution of male-male courtship display: a systematic review

2023Journal article Open access
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dc.contributor.authorÓrfão, Inês
dc.contributor.authorCarvalho, Constança
dc.contributor.authorRodrigues, Inês
dc.contributor.authorAscensão, Leonor
dc.contributor.authorPedaccini, Marie
dc.contributor.authorVicente, Luís
dc.contributor.authorBarbosa, Miguel
dc.contributor.authorVarela, Susana A. M.
dc.date.accessioned2024-04-04T18:25:07Z
dc.date.available2024-04-04T18:25:07Z
dc.date.issued2023
dc.description.abstractBackground: Evidence of male-male courtship display is widespread across the animal kingdom. Yet, its function and evolutionary origin remain unclear. Here, we hypothesise that male-male courtship display evolved in response to selection pressure exerted by intrasexual competition during male-female courtship interactions. Intrasexual competition can be caused by bystander male pressure through eavesdropping and exploiting on displayer male’s courtship interactions with females. This bystander pressure can lead to an audience effect by the displayer, who will change their courtship behaviour in the presence of bystanders and display directly towards them, even in the absence of females, as an intimidation strategy. In species where this selection pressure has taken place, we predict that the male courtship display will have a dual function: attract females and deter competitors. Therefore, we expected to find more evidence of bystander-related behaviours in species for which male-male courtship display is linked to intrasexual competition compared to species for which other explanatory hypotheses are more plausible (e.g., mistaken identity or courtship practice). Methodology: We conducted two systematic reviews to test this hypothesis. First, we conducted a search for studies of species with courtship display between males and of the hypotheses provided to explain this behaviour. Our goal was to identify the species with male-male courtship display and evidence of intrasexual competition. Second, among the species with male-male courtship display, we searched for evidence of bystander-related behaviours, i.e., articles referring to eavesdropping, exploitation, and audience effect during male-female courtship interactions. Our goal was to test whether species with intrasexual competition are also more likely to show bystander-related behaviours. Results: Although most studies reporting male courtship display towards other males do not suggest any explanatory hypothesis for this behaviour, the intrasexual competition hypothesis was largely mentioned and supported by some studies reviewed. Additionally, there is more evidence of eavesdropping and of all three bystander-related behaviours combined in species for which the intrasexual competition hypothesis was suggested. Conclusions: Overall, our review supports the hypothesis that intrasexual competition can play a key role in male courtship display evolution, namely that male-male courtship display may have evolved as a secondary function of male-female courtship interactions via bystander male pressure. However, our review also shows that despite the increasing interest in same-sex sexual behaviours, and male-male courtship display in particular, most studies were found to be merely descriptive, and the hypotheses they suggested to explain courtship display between males mostly speculative. This highlights an important gap in the literature. To clarify both the evolution and the function of male-male courtship display, this behaviour needs to be empirically studied more often. Our review can help advancing this research area, as it makes the 20 species with male-male courtship display for which the intrasexual competition hypothesis was suggested excellent candidates for empirical research. Copyright 2022 Órfão et al.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCT; ARDITI; CESAM, ERCpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationÓrfão, I., Carvalho, C., Vicente, L., Varela, S. A. M., Rodrigues, I., Ascensão, L., Pedaccini, M., & Barbosa, M. (2023). The role of intrasexual competition on the evolution of male-male courtship display: a systematic review. PeerJ, 11. https://doi.org/10.7717/peerj.14638pt_PT
dc.identifier.doi10.7717/peerj.14638pt_PT
dc.identifier.issn21678359
dc.identifier.urihttp://hdl.handle.net/10400.12/9712
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPeerJ Inc.pt_PT
dc.relationSFRH/BD/90686/2012pt_PT
dc.relationSFRH/BPD/82259/2011pt_PT
dc.relationSFRH/BPD/66042/2009pt_PT
dc.relationUID/BIA/00329/2013pt_PT
dc.relationUIBD/00678/2020pt_PT
dc.relationARDITI (M140-09-5369-fse-000002)pt_PT
dc.relationCESAM UIDP/50017/2020/UIDB/50017/2020pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAdult;pt_PT
dc.subjectArticlept_PT
dc.subjectCompetitionpt_PT
dc.subjectCourtshippt_PT
dc.subjectEmpirical researchpt_PT
dc.subjectFemalept_PT
dc.subjectHumanpt_PT
dc.subjectIntimidationpt_PT
dc.subjectMalept_PT
dc.subjectSexual behaviorpt_PT
dc.subjectSystematic reviewpt_PT
dc.titleThe role of intrasexual competition on the evolution of male-male courtship display: a systematic reviewpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited Statespt_PT
oaire.citation.startPagee14638pt_PT
oaire.citation.titlePeerJpt_PT
oaire.citation.volume10pt_PT
person.familyNameÓrfão Dias
person.familyNamePedaccini
person.familyNameBarbosa
person.givenNameInês
person.givenNameMarie Adeline
person.givenNameMiguel
person.identifier.ciencia-id6C16-3732-17DD
person.identifier.ciencia-idD61E-6403-5A64
person.identifier.ciencia-idE210-C5F2-499B
person.identifier.orcid0000-0001-9261-324X
person.identifier.orcid0000-0002-8863-8986
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5ccd0356-0407-41ad-a386-1860755d6472
relation.isAuthorOfPublicationfc9c786e-e8cb-4bc1-9876-8202b103b06a
relation.isAuthorOfPublication9181c6dc-6c9a-48a7-af16-c76760248901
relation.isAuthorOfPublication.latestForDiscoveryfc9c786e-e8cb-4bc1-9876-8202b103b06a

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