Body streamlining is related to higher growth in Bahamian mosquitofish

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dc.contributor.authorAraujo, Marcio S. [UNESP]
dc.contributor.authorLayman, Craig A.
dc.contributor.authorLangerhans, R. Brian
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionNorth Carolina State Univ
dc.date.accessioned2018-11-26T17:41:04Z
dc.date.available2018-11-26T17:41:04Z
dc.date.issued2017-07-01
dc.description.abstractBackground: Theory and empirical work indicate that streamlined body shapes (deep/wide anterior body tapering to a shallow/narrow caudal peduncle) enhance steady-swimming performance (cruising). Because steady-swimming performance reduces the cost of movement, better cruisers should have a competitive advantage. Hypothesis: More streamlined individuals have higher foraging success and competitive ability in the wild. Organism: Bahamian mosquitofish (Gambusia sp.). Times and places: Eleven populations on Abaco Island, Bahamas (291 females; 150 males) sampled in 2009 and 2010. Methods: We measured growth rate (RNA: DNA ratios) as a surrogate for foraging success and competitive ability. We obtained 16 relative warps from 10 anatomical landmarks that describe body shape. We tested for an association between growth rate and morphology using multivariate analysis of covariance. Results: Individuals with more streamlined bodies had higher growth rates across all populations. Specifically, higher growth rates were associated with shorter caudal peduncles and shallower bodies in females, and deeper heads and shorter/shallower caudal peduncles in males. These results indicate that streamlining favours greater foraging success and competitive ability.en
dc.description.affiliationUniv Estadual Paulista UNESP, Inst Biociencias, Dept Ecol, Rio Claro, Brazil
dc.description.affiliationNorth Carolina State Univ, Dept Appl Ecol, Raleigh, NC 27695 USA
dc.description.affiliationNorth Carolina State Univ, Dept Biol Sci, Raleigh, NC 27695 USA
dc.description.affiliationNorth Carolina State Univ, WM Keck Ctr Behav Biol, Raleigh, NC 27695 USA
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Inst Biociencias, Dept Ecol, Rio Claro, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipNSF
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 2010/15567-8
dc.description.sponsorshipIdNSF: OCE 0746164
dc.description.sponsorshipIdNSF: DEB 0842196
dc.description.sponsorshipIdCAPES: BEX 4496/08-6
dc.format.extent383-391
dc.identifier.citationEvolutionary Ecology Research. Tucson: Evolutionary Ecology Ltd, v. 18, n. 4, p. 383-391, 2017.
dc.identifier.issn1522-0613
dc.identifier.urihttp://hdl.handle.net/11449/163342
dc.identifier.wosWOS:000412043100003
dc.language.isoeng
dc.publisherEvolutionary Ecology Ltd
dc.relation.ispartofEvolutionary Ecology Research
dc.relation.ispartofsjr0,511
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectecomorphology
dc.subjectgeometric morphometrics
dc.subjectlivebearing fishes
dc.subjectPoeciliidae
dc.subjectRNA: DNA ratios
dc.titleBody streamlining is related to higher growth in Bahamian mosquitofishen
dc.typeArtigo
dcterms.rightsHolderEvolutionary Ecology Ltd

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