Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae)
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1086/719408 http://hdl.handle.net/11449/230678 |
Resumo: | Our knowledge of the mating systems in burrowing shrimps (infraorders Axiidea and Gebiidea) is still rather limited. Here we describe the burrow use pattern, sex ratio, and sexual dimorphism of the burrowing shrimp Axianassa australis to test for monogamy, considering that monogamous species live in heterosexual pairs and exhibit a low degree of sexual dimorphism. To this end, a total of 226 individuals of A. australis were collected from the northeast region of Brazil. Our results showed that A. australis inhabited its burrows mainly as pairs, most of which were male-female pairs. In agreement with the expectations, specimens of A. australis were found dwelling as heterosexual pairs more frequently than expected by chance alone. The presence of ovigerous females was associated with the burrow occupation; that is, brooding females were more frequently observed in male-female combinations than solitarily. Also supporting theoretical considerations, we did not observe sexual dimorphism in body size between males and females of the population and the different categories of the burrow occupation. Conversely, sexual dimorphism in cheliped size was evident in the population, with larger chelipeds in males than in females. This observation agrees with that re- ported for most burrowing shrimps in which male-male competition is the main evolutionary force of sexual selection. The observations above favor the hypothesis that A. australis is primarily monogamous, with a small fraction of the males moderately promiscuous. |
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Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae)Our knowledge of the mating systems in burrowing shrimps (infraorders Axiidea and Gebiidea) is still rather limited. Here we describe the burrow use pattern, sex ratio, and sexual dimorphism of the burrowing shrimp Axianassa australis to test for monogamy, considering that monogamous species live in heterosexual pairs and exhibit a low degree of sexual dimorphism. To this end, a total of 226 individuals of A. australis were collected from the northeast region of Brazil. Our results showed that A. australis inhabited its burrows mainly as pairs, most of which were male-female pairs. In agreement with the expectations, specimens of A. australis were found dwelling as heterosexual pairs more frequently than expected by chance alone. The presence of ovigerous females was associated with the burrow occupation; that is, brooding females were more frequently observed in male-female combinations than solitarily. Also supporting theoretical considerations, we did not observe sexual dimorphism in body size between males and females of the population and the different categories of the burrow occupation. Conversely, sexual dimorphism in cheliped size was evident in the population, with larger chelipeds in males than in females. This observation agrees with that re- ported for most burrowing shrimps in which male-male competition is the main evolutionary force of sexual selection. The observations above favor the hypothesis that A. australis is primarily monogamous, with a small fraction of the males moderately promiscuous.Universidad de Tarapacá (UTA) Facultad de Ciencias Centro de Estudios Marinos y Limnológicos, Av. General VelásquezUniversidade Federal do Maranhão (UFMA) Centro de Ciências Agrarias e Ambientais Laboratório de Biogeociclos/Limnologia, Br 222-KM 04, S/N, MaranhãoUniversidade Federal de Pernambuco (UFPE) Departamento de Oceanografia Museu de Oceanografia Petrônio Alves Coelho Cidade Universitária, Av. Arquitetura, s/n, PernambucoUniversidade Estadual Paulista (UNESP) Instituto de Biociências (IB) Campus do Litoral Paulista (CLP) Laboratório de Biologia da Conservação de Crustáceos (LBC) Grupo de Pesquisa em Biologia de Crustáceos (CRUSTA), Praça Infante Dom Henrique, s/n, Parque Bitaru, SPUniversidade Estadual Paulista (UNESP) Instituto de Biociências (IB) Campus do Litoral Paulista (CLP) Laboratório de Biologia da Conservação de Crustáceos (LBC) Grupo de Pesquisa em Biologia de Crustáceos (CRUSTA), Praça Infante Dom Henrique, s/n, Parque Bitaru, SPCentro de Estudios Marinos y LimnológicosLaboratório de Biogeociclos/LimnologiaUniversidade Federal de Pernambuco (UFPE)Universidade Estadual Paulista (UNESP)Hernáez, PatricioMugnai, RiccardoSouza-Filho, Jesser F.Pinheiro, Marcelo Antonio Amaro [UNESP]2022-04-29T08:41:28Z2022-04-29T08:41:28Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1086/719408Biological Bulletin.1939-86970006-3185http://hdl.handle.net/11449/23067810.1086/7194082-s2.0-85127584824Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiological Bulletininfo:eu-repo/semantics/openAccess2022-04-29T08:41:29Zoai:repositorio.unesp.br:11449/230678Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:38:03.655625Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) |
title |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) |
spellingShingle |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) Hernáez, Patricio |
title_short |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) |
title_full |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) |
title_fullStr |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) |
title_full_unstemmed |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) |
title_sort |
Monogamy in the Burrowing Shrimp Axianassa australis Rodrigues & Shimizu, 1992 (Decapoda, Gebiidea, Axianassidae) |
author |
Hernáez, Patricio |
author_facet |
Hernáez, Patricio Mugnai, Riccardo Souza-Filho, Jesser F. Pinheiro, Marcelo Antonio Amaro [UNESP] |
author_role |
author |
author2 |
Mugnai, Riccardo Souza-Filho, Jesser F. Pinheiro, Marcelo Antonio Amaro [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Centro de Estudios Marinos y Limnológicos Laboratório de Biogeociclos/Limnologia Universidade Federal de Pernambuco (UFPE) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Hernáez, Patricio Mugnai, Riccardo Souza-Filho, Jesser F. Pinheiro, Marcelo Antonio Amaro [UNESP] |
description |
Our knowledge of the mating systems in burrowing shrimps (infraorders Axiidea and Gebiidea) is still rather limited. Here we describe the burrow use pattern, sex ratio, and sexual dimorphism of the burrowing shrimp Axianassa australis to test for monogamy, considering that monogamous species live in heterosexual pairs and exhibit a low degree of sexual dimorphism. To this end, a total of 226 individuals of A. australis were collected from the northeast region of Brazil. Our results showed that A. australis inhabited its burrows mainly as pairs, most of which were male-female pairs. In agreement with the expectations, specimens of A. australis were found dwelling as heterosexual pairs more frequently than expected by chance alone. The presence of ovigerous females was associated with the burrow occupation; that is, brooding females were more frequently observed in male-female combinations than solitarily. Also supporting theoretical considerations, we did not observe sexual dimorphism in body size between males and females of the population and the different categories of the burrow occupation. Conversely, sexual dimorphism in cheliped size was evident in the population, with larger chelipeds in males than in females. This observation agrees with that re- ported for most burrowing shrimps in which male-male competition is the main evolutionary force of sexual selection. The observations above favor the hypothesis that A. australis is primarily monogamous, with a small fraction of the males moderately promiscuous. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-29T08:41:28Z 2022-04-29T08:41:28Z 2022-01-01 |
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/10.1086/719408 Biological Bulletin. 1939-8697 0006-3185 http://hdl.handle.net/11449/230678 10.1086/719408 2-s2.0-85127584824 |
url |
http://dx.doi.org/10.1086/719408 http://hdl.handle.net/11449/230678 |
identifier_str_mv |
Biological Bulletin. 1939-8697 0006-3185 10.1086/719408 2-s2.0-85127584824 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biological Bulletin |
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 |
|
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1808128255704694784 |