Intra-individual floral variation improves male fitness in a hummingbird-pollinated species

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dc.contributor.authorPaglia, Isis
dc.contributor.authorPinto, Alessandra Ribeiro
dc.contributor.authorAmorim, Felipe W. [UNESP]
dc.contributor.authorArceo-Gómez, Gerardo
dc.contributor.authorFreitas, Leandro
dc.contributor.institutionJardim Botânico do Rio de Janeiro. Rua Pacheco Leão
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionEast Tennessee State University
dc.date.accessioned2023-07-29T13:49:28Z
dc.date.available2023-07-29T13:49:28Z
dc.date.issued2023-05-01
dc.description.abstractIntra-individual variation in floral traits is widespread but yet poorly understood. Variations in flower size within individuals can have implications for plant reproductive success, hence may be under pollinator-mediated phenotypic selection. Most studies on pollinator-mediated selection only evaluate female reproductive success, although floral traits can be under stronger or opposing selection via male fitness. Here we evaluated selection on intra-individual variation and integration of floral traits via its effects on male reproductive success (pollen removal) on a hummingbird-pollinated species. We sampled flowers of Justicia sebastianopolitanae that were exposed to pollinators for 24 h and counted the number of pollen grains that remained in the anthers. We measured corolla length, corolla tube length, anther, and stigma height, as well as herkogamy, display size, and estimated the coefficient of variation (CV) of traits for each individual. We found that the greatest variation in floral traits occurs within individuals. Although intra-individual variation in anther height positively affected pollen removal, we did not detect significant selection, implying that intra-individual variation is not a target for pollinator-mediated selection through male fitness in this plant population. We also found selection on the mean of anther height, indicating the importance of the spatial separation between male and female structures. The variation in anther height may increase the area of pollen deposition on the pollinator's body. Therefore, intra-individual variation could increase the chance of an individual's pollen reaching more stigmas with different heights. We highlight that intra-individual variation should be more widely studied in the context of pollinator-mediated selection and its importance for the reproductive success of individuals in a population.en
dc.description.affiliationJardim Botânico do Rio de Janeiro. Rua Pacheco Leão, 915. Rio de Janeiro, RJ
dc.description.affiliationPrograma de Pós Graduação em Ecologia Universidade Federal do Rio de Janeiro, RJ
dc.description.affiliationLaboratório de Ecologia da Polinização e Interaçãoes – LEPI Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho”, SP
dc.description.affiliationDepartment of Biological Sciences East Tennessee State University, 125 Brown Hall
dc.description.affiliationUnespLaboratório de Ecologia da Polinização e Interaçãoes – LEPI Instituto de Biociências Universidade Estadual Paulista “Júlio de Mesquita Filho”, SP
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCNPq: 304458/2022–8
dc.description.sponsorshipIdCNPq: 304794/2018–0
dc.description.sponsorshipIdCNPq: 308559/2022–3
dc.description.sponsorshipIdCAPES: 88887.335096/2019–00
dc.description.sponsorshipIdCNPq: CNE E-26/2002.775/2018
dc.description.sponsorshipIdCNPq: E-26/201.000/2022
dc.identifierhttp://dx.doi.org/10.1016/j.flora.2023.152270
dc.identifier.citationFlora: Morphology, Distribution, Functional Ecology of Plants, v. 302.
dc.identifier.doi10.1016/j.flora.2023.152270
dc.identifier.issn0367-2530
dc.identifier.scopus2-s2.0-85151674458
dc.identifier.urihttp://hdl.handle.net/11449/248636
dc.language.isoeng
dc.relation.ispartofFlora: Morphology, Distribution, Functional Ecology of Plants
dc.sourceScopus
dc.subjectFloral traits
dc.subjectMale success
dc.subjectPhenotypic integration
dc.subjectPollination
dc.subjectPollinator-mediated selection
dc.subjectWithin-individual variation
dc.titleIntra-individual floral variation improves male fitness in a hummingbird-pollinated speciesen
dc.typeArtigo
unesp.author.orcid0000-0002-5570-8079[1]

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