Seasonal variation in body size of tropical anuran amphibians

Detalhes bibliográficos
Autor(a) principal: da Silva, Fernando Rodrigues [UNESP]
Data de Publicação: 2010
Outros Autores: Rossa-Feres, Denise de Cerqueira [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/227203
Resumo: Most anurans are considered short lived reproducing only once, with adult size being an important factor contributing to mating success. We sampled anurans with 30 pitfall traps in three forest patches of the northwestern São Paulo State, Brazil, throughout one year. Our objective was to analyze the variation in anuran body size between the dry and rainy season. Our hypothesis is that anurans registered during the rainy season will be larger than conspecifics registered during dry season, since there is a selective advantage in having a larger body size during reproduction activity. The most abundant species registered in the patches were Eupemphix nattereri, Physalaemus cuvieri and Leptodactylus podicipinus. Males and females of E. nattereri and P. cuvieri recorded in the rainy season were larger than of those captured in the dry one. In contrast, males of L. podicipinus were larger in the dry season than in the rainy season. Besides, the operational sex ratio (OSR) in the breeding season was biased towards males in these three species with, respectively, 4.66, 3.2 and 1.87 males per female. Our results suggest that probably body size variation between different seasons is a consequence of individuals' turnover between rainy seasons. Lower individuals captured in the dry season, would be reproductively active adults in the next breeding season.
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spelling Seasonal variation in body size of tropical anuran amphibiansMesophytic semideciduous forestRecruitmentSeasonalitySuccess of reproductionMost anurans are considered short lived reproducing only once, with adult size being an important factor contributing to mating success. We sampled anurans with 30 pitfall traps in three forest patches of the northwestern São Paulo State, Brazil, throughout one year. Our objective was to analyze the variation in anuran body size between the dry and rainy season. Our hypothesis is that anurans registered during the rainy season will be larger than conspecifics registered during dry season, since there is a selective advantage in having a larger body size during reproduction activity. The most abundant species registered in the patches were Eupemphix nattereri, Physalaemus cuvieri and Leptodactylus podicipinus. Males and females of E. nattereri and P. cuvieri recorded in the rainy season were larger than of those captured in the dry one. In contrast, males of L. podicipinus were larger in the dry season than in the rainy season. Besides, the operational sex ratio (OSR) in the breeding season was biased towards males in these three species with, respectively, 4.66, 3.2 and 1.87 males per female. Our results suggest that probably body size variation between different seasons is a consequence of individuals' turnover between rainy seasons. Lower individuals captured in the dry season, would be reproductively active adults in the next breeding season.UNESP Campus de São José do Rio Preto, São PauloDepartamento de Zoologia e Botânica Laboratório de Ecologia Animal, Rua Cristovão Colombo, 2265, CEP 15054-000Departamento de Zoologia e Botânica UNESP Campus São José do Rio Preto, SPUNESP Campus de São José do Rio Preto, São PauloDepartamento de Zoologia e Botânica UNESP Campus São José do Rio Preto, SPUniversidade Estadual Paulista (UNESP)Laboratório de Ecologia Animalda Silva, Fernando Rodrigues [UNESP]Rossa-Feres, Denise de Cerqueira [UNESP]2022-04-29T07:12:06Z2022-04-29T07:12:06Z2010-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article205-210Herpetology Notes, v. 3, n. 1, p. 205-210, 2010.2071-5773http://hdl.handle.net/11449/2272032-s2.0-84883545365Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengHerpetology Notesinfo:eu-repo/semantics/openAccess2022-04-29T07:12:06Zoai:repositorio.unesp.br:11449/227203Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:24:07.256110Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Seasonal variation in body size of tropical anuran amphibians
title Seasonal variation in body size of tropical anuran amphibians
spellingShingle Seasonal variation in body size of tropical anuran amphibians
da Silva, Fernando Rodrigues [UNESP]
Mesophytic semideciduous forest
Recruitment
Seasonality
Success of reproduction
title_short Seasonal variation in body size of tropical anuran amphibians
title_full Seasonal variation in body size of tropical anuran amphibians
title_fullStr Seasonal variation in body size of tropical anuran amphibians
title_full_unstemmed Seasonal variation in body size of tropical anuran amphibians
title_sort Seasonal variation in body size of tropical anuran amphibians
author da Silva, Fernando Rodrigues [UNESP]
author_facet da Silva, Fernando Rodrigues [UNESP]
Rossa-Feres, Denise de Cerqueira [UNESP]
author_role author
author2 Rossa-Feres, Denise de Cerqueira [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Laboratório de Ecologia Animal
dc.contributor.author.fl_str_mv da Silva, Fernando Rodrigues [UNESP]
Rossa-Feres, Denise de Cerqueira [UNESP]
dc.subject.por.fl_str_mv Mesophytic semideciduous forest
Recruitment
Seasonality
Success of reproduction
topic Mesophytic semideciduous forest
Recruitment
Seasonality
Success of reproduction
description Most anurans are considered short lived reproducing only once, with adult size being an important factor contributing to mating success. We sampled anurans with 30 pitfall traps in three forest patches of the northwestern São Paulo State, Brazil, throughout one year. Our objective was to analyze the variation in anuran body size between the dry and rainy season. Our hypothesis is that anurans registered during the rainy season will be larger than conspecifics registered during dry season, since there is a selective advantage in having a larger body size during reproduction activity. The most abundant species registered in the patches were Eupemphix nattereri, Physalaemus cuvieri and Leptodactylus podicipinus. Males and females of E. nattereri and P. cuvieri recorded in the rainy season were larger than of those captured in the dry one. In contrast, males of L. podicipinus were larger in the dry season than in the rainy season. Besides, the operational sex ratio (OSR) in the breeding season was biased towards males in these three species with, respectively, 4.66, 3.2 and 1.87 males per female. Our results suggest that probably body size variation between different seasons is a consequence of individuals' turnover between rainy seasons. Lower individuals captured in the dry season, would be reproductively active adults in the next breeding season.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-01
2022-04-29T07:12:06Z
2022-04-29T07:12:06Z
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 Herpetology Notes, v. 3, n. 1, p. 205-210, 2010.
2071-5773
http://hdl.handle.net/11449/227203
2-s2.0-84883545365
identifier_str_mv Herpetology Notes, v. 3, n. 1, p. 205-210, 2010.
2071-5773
2-s2.0-84883545365
url http://hdl.handle.net/11449/227203
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Herpetology Notes
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 205-210
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
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