Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations?
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ecss.2021.107358 http://hdl.handle.net/11449/207566 |
Resumo: | The 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. |
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Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations?Climate changeLatitudinal size clineMetabolic costsPredator's choiceSexual maturityThe 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.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Ministério do Meio AmbienteSão Paulo State University – UNESP Postgraduate Program in Biological Sciences (Zoology) Bioscience Institute Botucatu CampusMetropolitan University of Santos – UNIMESSão Paulo State University- UNESP Biosciences Institute Coastal CampusSão Paulo State University – UNESP Postgraduate Program in Biological Sciences (Zoology) Bioscience Institute Botucatu CampusSão Paulo State University- UNESP Biosciences Institute Coastal CampusCAPES: 001FAPESP: 2015/50300-6Ministério do Meio Ambiente: 62200-1Universidade Estadual Paulista (Unesp)Metropolitan University of Santos – UNIMESDe Grande, Fernando Rafael [UNESP]Granado, PriscilaCosta, Tânia Marcia [UNESP]2021-06-25T10:57:24Z2021-06-25T10:57:24Z2021-06-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.ecss.2021.107358Estuarine, Coastal and Shelf Science, v. 254.0272-7714http://hdl.handle.net/11449/20756610.1016/j.ecss.2021.1073582-s2.0-85103731348Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEstuarine, Coastal and Shelf Scienceinfo:eu-repo/semantics/openAccess2021-10-23T17:37:03Zoai:repositorio.unesp.br:11449/207566Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:19:46.235920Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? |
title |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? |
spellingShingle |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? De Grande, Fernando Rafael [UNESP] Climate change Latitudinal size cline Metabolic costs Predator's choice Sexual maturity |
title_short |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? |
title_full |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? |
title_fullStr |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? |
title_full_unstemmed |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? |
title_sort |
Size-at-age or structure shift: Which hypothesis explains smaller body size of the fiddler crab Leptuca uruguayensis in northern populations? |
author |
De Grande, Fernando Rafael [UNESP] |
author_facet |
De Grande, Fernando Rafael [UNESP] Granado, Priscila Costa, Tânia Marcia [UNESP] |
author_role |
author |
author2 |
Granado, Priscila Costa, Tânia Marcia [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Metropolitan University of Santos – UNIMES |
dc.contributor.author.fl_str_mv |
De Grande, Fernando Rafael [UNESP] Granado, Priscila Costa, Tânia Marcia [UNESP] |
dc.subject.por.fl_str_mv |
Climate change Latitudinal size cline Metabolic costs Predator's choice Sexual maturity |
topic |
Climate change Latitudinal size cline Metabolic costs Predator's choice Sexual maturity |
description |
The 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. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:57:24Z 2021-06-25T10:57:24Z 2021-06-05 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.ecss.2021.107358 Estuarine, Coastal and Shelf Science, v. 254. 0272-7714 http://hdl.handle.net/11449/207566 10.1016/j.ecss.2021.107358 2-s2.0-85103731348 |
url |
http://dx.doi.org/10.1016/j.ecss.2021.107358 http://hdl.handle.net/11449/207566 |
identifier_str_mv |
Estuarine, Coastal and Shelf Science, v. 254. 0272-7714 10.1016/j.ecss.2021.107358 2-s2.0-85103731348 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Estuarine, Coastal and Shelf Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129415642611712 |