Seasonal variation in body size of tropical anuran amphibians
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808128645021040640 |