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The sources of variation for individual prey-to-predator size ratios

2021-01Artigo científico Acesso aberto
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dc.contributor.authorHenriques, Jorge
dc.contributor.authorLacava, Mariángeles
dc.contributor.authorGuzmán, Celeste
dc.contributor.authorGavín-Centol, Maria Pilar
dc.contributor.authorRuiz-Lupión, Dolores
dc.contributor.authorDe Mas, Eva
dc.contributor.authorMagalhaes, S
dc.contributor.authorMoya-Laraño, Jordi
dc.date.accessioned2022-01-26T17:38:33Z
dc.date.available2022-01-26T17:38:33Z
dc.date.issued2021-01
dc.description.abstractThe relative body size at which predators are willing to attack prey, a key trait for predator-prey interactions, is usually considered invariant. However, this ratio can vary widely among individuals or populations. Identifying the range and origin of such variation is key to understanding the strength and constraints on selection in both predators and prey. Still, these sources of variation remain largely unknown. We filled this gap by measuring the genetic, maternal and environmental variation of the maximum prey-to-predator size ratio (PPSRmax) in juveniles of the wolf spider Lycosa fasciiventris using a paternal half-sib split-brood design, in which each male was paired with two females and the offspring reared in two food environments: poor and rich. Each juvenile spider was then sequentially offered crickets of decreasing size and the maximum prey size killed was determined. We also measured body size and body condition of spiders upon emergence and just before the trial. We found low, but significant heritability (h2 = 0.069) and dominance and common environmental variance (d2 + 4c2 = 0.056). PPSRmax was also partially explained by body condition (during trial) but there was no effect of the rearing food environment. Finally, a maternal correlation between body size early in life and PPSRmax indicated that offspring born larger were less predisposed to feed on larger prey later in life. Therefore, PPSRmax, a central trait in ecosystems, can vary widely and this variation is due to different sources, with important consequences for changes in this trait in the short and long terms.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHenriques J. F., Lacava M., Guzman C., Gavín-Centol M. P., Ruiz-Lupión D., De Mas E., Magalhães S.* and Moya-Laraño J. *(* co-last) (2021). The sources of variation for individual prey-to-predator size ratios. Heredity 126:684-694. https://doi.org/10.1038/s41437-020-00395-5pt_PT
dc.identifier.doi10.1038/s41437-020-00395-5pt_PT
dc.identifier.issn1365-2540
dc.identifier.urihttp://hdl.handle.net/10451/51006
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Naturept_PT
dc.relationFCT grant PD/BD/106059/2015pt_PT
dc.relationAndalusian government grant P12-RMN-1521pt_PT
dc.relationSpanish Ministry of Economy and Competitiveness grant CGL2015-66192-Rpt_PT
dc.relationFPU scholarship FPU13/04933pt_PT
dc.relation.publisherversionhttps://www.nature.com/articles/s41437-020-00395-5pt_PT
dc.subjectPredator-prey interactionspt_PT
dc.subjectheritabilitypt_PT
dc.subjectadditive variancept_PT
dc.subjectdominance variancept_PT
dc.subjectmaternal variancept_PT
dc.subjectcommon environmental variancept_PT
dc.titleThe sources of variation for individual prey-to-predator size ratiospt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage694pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage684pt_PT
oaire.citation.titleHereditypt_PT
oaire.citation.volume126pt_PT
person.familyNameHenriques
person.familyNameMagalhaes
person.givenNameJorge
person.givenNamesara
person.identifier.ciencia-idC81E-4273-A33A
person.identifier.ciencia-id9111-5189-F926
person.identifier.orcid0000-0001-5463-8737
person.identifier.orcid0000-0002-8609-7768
person.identifier.ridB-1019-2015
person.identifier.ridB-9673-2012
person.identifier.scopus-author-id56996832000
rcaap.embargofctO tipo de licença envolvido com a editora Nature para esta revista, não envolvendo pagamento (APC), apenas permite acesso em repositório público do formato 'aceite' (i.e não editado e paginado pela editora) após período de embargo de 6 meses após a data da sua publicação final, já cumprido.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication744cbf1c-3a0a-4a7c-b894-b436ea5c0acb
relation.isAuthorOfPublicationc733d207-c30c-4e27-ae86-6acae8a37c69
relation.isAuthorOfPublication.latestForDiscoveryc733d207-c30c-4e27-ae86-6acae8a37c69

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