Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations?

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorMetropolitan University of Santos – UNIMES-
Autor(es): dc.creatorDe Grande, Fernando Rafael [UNESP]-
Autor(es): dc.creatorGranado, Priscila-
Autor(es): dc.creatorCosta, Tânia Marcia [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:50:37Z-
Data de disponibilização: dc.date.available2022-02-22T00:50:37Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-05-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ecss.2021.107358-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/207566-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/207566-
Descrição: dc.descriptionThe mean body size decrease is known as the third most important global consequence of climate change to wild life. Rising temperatures may lead to decreased mean body size of organisms and change their ecological role in the environment. Herein we investigated why the fiddler crab Leptuca uruguayensis is smaller at its northern distributional limit by using the ‘size-at-age’ and ‘structure shift’ as alternative hypotheses. For the first hypothesis, we evaluated whether the smaller mean body size of L. uruguayensis from a northern population is a phenotypic response to the thermal environment. For that, we tested whether the crabs grow less and reach the onset of sexual maturity earlier at high temperatures. We also evaluated their oxygen consumption at different temperatures to test whether higher metabolic rates due to warmer temperatures leads to smaller body sizes. For the second hypothesis, we evaluated whether smaller mean body size in a northern population is a result of differential survivorship between age-classes. We tested whether the temperature itself or a predator model with a range distribution linked to temperature (Minuca rapax) could negatively select larger L. uruguayensis sizes. We showed that crabs grow less, reach sexual maturity earlier and have lower survive in response to high metabolic costs imposed by higher temperatures. The predator chose a large L. uruguayensis size, a finding that could mean selective pressure where prey populations overlap with this predator. Thus, global warming may decrease the mean body size of the fiddler crabs at lower latitudes, affecting their ontogenesis and by selective pressure against larger individuals.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionMinistério do Meio Ambiente-
Descrição: dc.descriptionSão Paulo State University – UNESP Postgraduate Program in Biological Sciences (Zoology) Bioscience Institute Botucatu Campus-
Descrição: dc.descriptionMetropolitan University of Santos – UNIMES-
Descrição: dc.descriptionSão Paulo State University- UNESP Biosciences Institute Coastal Campus-
Descrição: dc.descriptionSão Paulo State University – UNESP Postgraduate Program in Biological Sciences (Zoology) Bioscience Institute Botucatu Campus-
Descrição: dc.descriptionSão Paulo State University- UNESP Biosciences Institute Coastal Campus-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionFAPESP: 2015/50300-6-
Descrição: dc.descriptionMinistério do Meio Ambiente: 62200-1-
Idioma: dc.languageen-
Relação: dc.relationEstuarine, Coastal and Shelf Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectClimate change-
Palavras-chave: dc.subjectLatitudinal size cline-
Palavras-chave: dc.subjectMetabolic costs-
Palavras-chave: dc.subjectPredator's choice-
Palavras-chave: dc.subjectSexual maturity-
Título: dc.titleSize-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations?-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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