Effects of climatic conditions on sex ratios in nests of broad snouted caiman

Autores
Simoncini, Melina Soledad; Cruz, Felix Benjamin; Larriera, A; Piña, Carlos Ignacio
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Caiman latirostris has temperature-dependent sex determination and is potentially susceptible to environmental temperature fluctuations and, thus, to the global climate change phenomena. Considering the potential consequences of increasing temperatures for Ca. latirostris offspring, we examined the effects of climatic conditions on sex ratios produced by caimans in wild nests and in particular how climate variables affect nest temperature and the percentage of females produced. We also explored the potential consequences of a hypothetic 0.5 and 1.0°C increase in nest temperature on caiman populations. The proportion of females produced from nests in the wild varied among reproductive seasons, as mean nest temperatures varied between 27.1 and 33.9°C. However, after seven seasons the sex ratio biased toward females, and only during extreme events (strong El Niño Southern Oscillation event, La Niña) was there a reduction in the percentage of females produced in the wild. In the hypothetic scenarios of global warming, we predict a decrease of unisexual female nests, with nests containing both sexes or unisexual male nests becoming more frequent. Entire clutches might be lost if nest temperatures rise above 34.5°C for extended periods. However, it is possible that females modify their nesting timing and behavior to select thermally suitable nest environments.
Fil: Simoncini, Melina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Científicas y Transferencia de Tecnología A la Producción; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); Argentina
Fil: Cruz, Felix Benjamin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Larriera, A. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); Argentina
Fil: Piña, Carlos Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Científicas y Transferencia de Tecnología A la Producción; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); Argentina. Universidad Autónoma de Entre Ríos; Argentina
Materia
Caiman Latirostris
Climate Change
Nesting
Sex Determination
Temperature
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/12074
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/12074
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of climatic conditions on sex ratios in nests of broad snouted caimanSimoncini, Melina SoledadCruz, Felix BenjaminLarriera, APiña, Carlos IgnacioCaiman LatirostrisClimate ChangeNestingSex DeterminationTemperaturehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Caiman latirostris has temperature-dependent sex determination and is potentially susceptible to environmental temperature fluctuations and, thus, to the global climate change phenomena. Considering the potential consequences of increasing temperatures for Ca. latirostris offspring, we examined the effects of climatic conditions on sex ratios produced by caimans in wild nests and in particular how climate variables affect nest temperature and the percentage of females produced. We also explored the potential consequences of a hypothetic 0.5 and 1.0°C increase in nest temperature on caiman populations. The proportion of females produced from nests in the wild varied among reproductive seasons, as mean nest temperatures varied between 27.1 and 33.9°C. However, after seven seasons the sex ratio biased toward females, and only during extreme events (strong El Niño Southern Oscillation event, La Niña) was there a reduction in the percentage of females produced in the wild. In the hypothetic scenarios of global warming, we predict a decrease of unisexual female nests, with nests containing both sexes or unisexual male nests becoming more frequent. Entire clutches might be lost if nest temperatures rise above 34.5°C for extended periods. However, it is possible that females modify their nesting timing and behavior to select thermally suitable nest environments.Fil: Simoncini, Melina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Científicas y Transferencia de Tecnología A la Producción; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); ArgentinaFil: Cruz, Felix Benjamin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; ArgentinaFil: Larriera, A. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); ArgentinaFil: Piña, Carlos Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Científicas y Transferencia de Tecnología A la Producción; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); Argentina. Universidad Autónoma de Entre Ríos; ArgentinaWiley2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12074Simoncini, Melina Soledad; Cruz, Felix Benjamin; Larriera, A; Piña, Carlos Ignacio; Effects of climatic conditions on sex ratios in nests of broad snouted caiman; Wiley; Journal Of Zoology; 293; 4; 3-2014; 241-2510952-8369enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/jzo.12140/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1111/jzo.12140info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:36Zoai:ri.conicet.gov.ar:11336/12074instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:36.362CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of climatic conditions on sex ratios in nests of broad snouted caiman
title Effects of climatic conditions on sex ratios in nests of broad snouted caiman
spellingShingle Effects of climatic conditions on sex ratios in nests of broad snouted caiman
Simoncini, Melina Soledad
Caiman Latirostris
Climate Change
Nesting
Sex Determination
Temperature
title_short Effects of climatic conditions on sex ratios in nests of broad snouted caiman
title_full Effects of climatic conditions on sex ratios in nests of broad snouted caiman
title_fullStr Effects of climatic conditions on sex ratios in nests of broad snouted caiman
title_full_unstemmed Effects of climatic conditions on sex ratios in nests of broad snouted caiman
title_sort Effects of climatic conditions on sex ratios in nests of broad snouted caiman
dc.creator.none.fl_str_mv Simoncini, Melina Soledad
Cruz, Felix Benjamin
Larriera, A
Piña, Carlos Ignacio
author Simoncini, Melina Soledad
author_facet Simoncini, Melina Soledad
Cruz, Felix Benjamin
Larriera, A
Piña, Carlos Ignacio
author_role author
author2 Cruz, Felix Benjamin
Larriera, A
Piña, Carlos Ignacio
author2_role author
author
author
dc.subject.none.fl_str_mv Caiman Latirostris
Climate Change
Nesting
Sex Determination
Temperature
topic Caiman Latirostris
Climate Change
Nesting
Sex Determination
Temperature
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Caiman latirostris has temperature-dependent sex determination and is potentially susceptible to environmental temperature fluctuations and, thus, to the global climate change phenomena. Considering the potential consequences of increasing temperatures for Ca. latirostris offspring, we examined the effects of climatic conditions on sex ratios produced by caimans in wild nests and in particular how climate variables affect nest temperature and the percentage of females produced. We also explored the potential consequences of a hypothetic 0.5 and 1.0°C increase in nest temperature on caiman populations. The proportion of females produced from nests in the wild varied among reproductive seasons, as mean nest temperatures varied between 27.1 and 33.9°C. However, after seven seasons the sex ratio biased toward females, and only during extreme events (strong El Niño Southern Oscillation event, La Niña) was there a reduction in the percentage of females produced in the wild. In the hypothetic scenarios of global warming, we predict a decrease of unisexual female nests, with nests containing both sexes or unisexual male nests becoming more frequent. Entire clutches might be lost if nest temperatures rise above 34.5°C for extended periods. However, it is possible that females modify their nesting timing and behavior to select thermally suitable nest environments.
Fil: Simoncini, Melina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Científicas y Transferencia de Tecnología A la Producción; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); Argentina
Fil: Cruz, Felix Benjamin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Larriera, A. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); Argentina
Fil: Piña, Carlos Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Científicas y Transferencia de Tecnología A la Producción; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias. Departamento de Cs.naturales. Laboratorio de Zoologia Aplicada: Anexo Vertebrados (fhuc-unl/maspyma); Argentina. Universidad Autónoma de Entre Ríos; Argentina
description Caiman latirostris has temperature-dependent sex determination and is potentially susceptible to environmental temperature fluctuations and, thus, to the global climate change phenomena. Considering the potential consequences of increasing temperatures for Ca. latirostris offspring, we examined the effects of climatic conditions on sex ratios produced by caimans in wild nests and in particular how climate variables affect nest temperature and the percentage of females produced. We also explored the potential consequences of a hypothetic 0.5 and 1.0°C increase in nest temperature on caiman populations. The proportion of females produced from nests in the wild varied among reproductive seasons, as mean nest temperatures varied between 27.1 and 33.9°C. However, after seven seasons the sex ratio biased toward females, and only during extreme events (strong El Niño Southern Oscillation event, La Niña) was there a reduction in the percentage of females produced in the wild. In the hypothetic scenarios of global warming, we predict a decrease of unisexual female nests, with nests containing both sexes or unisexual male nests becoming more frequent. Entire clutches might be lost if nest temperatures rise above 34.5°C for extended periods. However, it is possible that females modify their nesting timing and behavior to select thermally suitable nest environments.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/12074
Simoncini, Melina Soledad; Cruz, Felix Benjamin; Larriera, A; Piña, Carlos Ignacio; Effects of climatic conditions on sex ratios in nests of broad snouted caiman; Wiley; Journal Of Zoology; 293; 4; 3-2014; 241-251
0952-8369
url http://hdl.handle.net/11336/12074
identifier_str_mv Simoncini, Melina Soledad; Cruz, Felix Benjamin; Larriera, A; Piña, Carlos Ignacio; Effects of climatic conditions on sex ratios in nests of broad snouted caiman; Wiley; Journal Of Zoology; 293; 4; 3-2014; 241-251
0952-8369
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/jzo.12140/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1111/jzo.12140
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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