Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae)

Male’s Belostomatinae parental solicitude of incubating eggs as well as general ten- dencies and temporal changes in the sex ratio, are here referred to a Belostoma oxyurum population, in order to study their effects on female’s competition. Dorsal incubation space, which acts as a substrate, and ob...

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Autores principales: Snack, J. A., Domizi, Eduardo A., Estevez, Ana L., Spinelli, Gustavo R.
Formato: Artículo revista
Lenguaje:Español
Publicado: Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2025
Materias:
Belostomatinae (Hemiptera, Belostomatidae)
Competencia sexual
Determinantes ecológicos
Acceso en línea:https://revistas.unne.edu.ar/index.php/eco/article/view/8476
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-8476
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spelling I48-R154-article-84762025-07-18T15:21:03Z Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae) Snack, J. A. Domizi, Eduardo A. Estevez, Ana L. Spinelli, Gustavo R. Belostomatinae (Hemiptera, Belostomatidae) Competencia sexual Determinantes ecológicos Male’s Belostomatinae parental solicitude of incubating eggs as well as general ten- dencies and temporal changes in the sex ratio, are here referred to a Belostoma oxyurum population, in order to study their effects on female’s competition. Dorsal incubation space, which acts as a substrate, and obviously as a resourse, is asumed to be a limited requisite for gravid females during the reproductive seasons, according to its relative and absolute shortage.Some conclusive evidences are given from an annual sampling programme developed in “Laguna Los Talas" (Province of Buenos Aires, Argentine) from January 6 to December 27, 1978. Furthermore, preliminary observations carried on under experimental conditions allowed us to support our field experience, in order to prove the existence of intrasexual and intersexual selection as a mean to promote the temporary sexual unbalance observed in nature. Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2025-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.unne.edu.ar/index.php/eco/article/view/8476 Ecosur; 1980: vol. 7, no. 13; 1-13 0325-108X spa https://revistas.unne.edu.ar/index.php/eco/article/view/8476/8031 http://creativecommons.org/licenses/by-nc/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic Belostomatinae (Hemiptera, Belostomatidae)
Competencia sexual
Determinantes ecológicos
spellingShingle Belostomatinae (Hemiptera, Belostomatidae)
Competencia sexual
Determinantes ecológicos
Snack, J. A.
Domizi, Eduardo A.
Estevez, Ana L.
Spinelli, Gustavo R.
Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae)
topic_facet Belostomatinae (Hemiptera, Belostomatidae)
Competencia sexual
Determinantes ecológicos
author Snack, J. A.
Domizi, Eduardo A.
Estevez, Ana L.
Spinelli, Gustavo R.
author_facet Snack, J. A.
Domizi, Eduardo A.
Estevez, Ana L.
Spinelli, Gustavo R.
author_sort Snack, J. A.
title Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae)
title_short Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae)
title_full Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae)
title_fullStr Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae)
title_full_unstemmed Determinantes ecológicos de la competencia sexual en Belostomatinae. Consideraciones sobre una población de Belostoma oxyurum (Dufour) (Hemiptera, Belostomatidae)
title_sort determinantes ecológicos de la competencia sexual en belostomatinae. consideraciones sobre una población de belostoma oxyurum (dufour) (hemiptera, belostomatidae)
description Male’s Belostomatinae parental solicitude of incubating eggs as well as general ten- dencies and temporal changes in the sex ratio, are here referred to a Belostoma oxyurum population, in order to study their effects on female’s competition. Dorsal incubation space, which acts as a substrate, and obviously as a resourse, is asumed to be a limited requisite for gravid females during the reproductive seasons, according to its relative and absolute shortage.Some conclusive evidences are given from an annual sampling programme developed in “Laguna Los Talas" (Province of Buenos Aires, Argentine) from January 6 to December 27, 1978. Furthermore, preliminary observations carried on under experimental conditions allowed us to support our field experience, in order to prove the existence of intrasexual and intersexual selection as a mean to promote the temporary sexual unbalance observed in nature.
publisher Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
publishDate 2025
url https://revistas.unne.edu.ar/index.php/eco/article/view/8476
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