Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae)
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/10.1093/biolinnean/blac026 http://hdl.handle.net/11449/240113 |
Resumo: | Animal weapons are generally complex systems composed of more than one structure. A crab's claw, for instance, is composed of a dactyl (a movable finger) and a propodus (where the muscle resides). Any weapon feature that increases winning probability also increases an individual's fitness, meaning that all moving parts of a weapon will be under the same selective force - increasing their integration. By comparing weapons to homologous structures not used for fighting, we can test whether fighting increases morphological integration. Here, we tested that hypothesis by comparing the right (non-fighting) and left (fighting) claws of males of Aegla. First, we tested if the shape and size of the propodus and dactyl differed between claws. Then, we compared the degree of morphological integration. We showed that claws differed in their shape and size, but both claws showed similarly high levels of integration. This pattern can occur if selection favours an adequate squeeze on both claws, even though squeezing performance might differ between the claws. Nevertheless, the dactyl is important in determining the integration of a claw but it has been greatly ignored in crustacean studies and its study might increase our knowledge of claw evolution. |
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Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae)Aeglaanimal weaponsgeometric morphometricsheterochelyheterodactylyAnimal weapons are generally complex systems composed of more than one structure. A crab's claw, for instance, is composed of a dactyl (a movable finger) and a propodus (where the muscle resides). Any weapon feature that increases winning probability also increases an individual's fitness, meaning that all moving parts of a weapon will be under the same selective force - increasing their integration. By comparing weapons to homologous structures not used for fighting, we can test whether fighting increases morphological integration. Here, we tested that hypothesis by comparing the right (non-fighting) and left (fighting) claws of males of Aegla. First, we tested if the shape and size of the propodus and dactyl differed between claws. Then, we compared the degree of morphological integration. We showed that claws differed in their shape and size, but both claws showed similarly high levels of integration. This pattern can occur if selection favours an adequate squeeze on both claws, even though squeezing performance might differ between the claws. Nevertheless, the dactyl is important in determining the integration of a claw but it has been greatly ignored in crustacean studies and its study might increase our knowledge of claw evolution.Department of Biological Sciences Faculty of Sciences São Paulo State University (UNESP)Museum of Zoology University of São Paulo (USP)Programa de Pós-Graduação em Ecologia e Evolução Federal University of São Paulo (UNIFESP)Programa de Pós-Graduação em Ecologia University of São Paulo (USP)Department of Materials Science and Engineering Clemson UniversityDepartment of Biological Sciences Faculty of Sciences São Paulo State University (UNESP)Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Clemson UniversityNogueira, Caio S [UNESP]Silva, Alexandre R. daPalaoro, Alexandre V2023-03-01T20:02:07Z2023-03-01T20:02:07Z2022-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article173-186http://dx.doi.org/10.1093/biolinnean/blac026Biological Journal of the Linnean Society, v. 136, n. 1, p. 173-186, 2022.1095-83120024-4066http://hdl.handle.net/11449/24011310.1093/biolinnean/blac0262-s2.0-85130641432Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiological Journal of the Linnean Societyinfo:eu-repo/semantics/openAccess2023-03-01T20:02:07Zoai:repositorio.unesp.br:11449/240113Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:53:02.390710Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) |
title |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) |
spellingShingle |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) Nogueira, Caio S [UNESP] Aegla animal weapons geometric morphometrics heterochely heterodactyly |
title_short |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) |
title_full |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) |
title_fullStr |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) |
title_full_unstemmed |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) |
title_sort |
Fighting does not influence the morphological integration of crustacean claws (Decapoda: Aeglidae) |
author |
Nogueira, Caio S [UNESP] |
author_facet |
Nogueira, Caio S [UNESP] Silva, Alexandre R. da Palaoro, Alexandre V |
author_role |
author |
author2 |
Silva, Alexandre R. da Palaoro, Alexandre V |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) Clemson University |
dc.contributor.author.fl_str_mv |
Nogueira, Caio S [UNESP] Silva, Alexandre R. da Palaoro, Alexandre V |
dc.subject.por.fl_str_mv |
Aegla animal weapons geometric morphometrics heterochely heterodactyly |
topic |
Aegla animal weapons geometric morphometrics heterochely heterodactyly |
description |
Animal weapons are generally complex systems composed of more than one structure. A crab's claw, for instance, is composed of a dactyl (a movable finger) and a propodus (where the muscle resides). Any weapon feature that increases winning probability also increases an individual's fitness, meaning that all moving parts of a weapon will be under the same selective force - increasing their integration. By comparing weapons to homologous structures not used for fighting, we can test whether fighting increases morphological integration. Here, we tested that hypothesis by comparing the right (non-fighting) and left (fighting) claws of males of Aegla. First, we tested if the shape and size of the propodus and dactyl differed between claws. Then, we compared the degree of morphological integration. We showed that claws differed in their shape and size, but both claws showed similarly high levels of integration. This pattern can occur if selection favours an adequate squeeze on both claws, even though squeezing performance might differ between the claws. Nevertheless, the dactyl is important in determining the integration of a claw but it has been greatly ignored in crustacean studies and its study might increase our knowledge of claw evolution. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-01 2023-03-01T20:02:07Z 2023-03-01T20:02:07Z |
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/10.1093/biolinnean/blac026 Biological Journal of the Linnean Society, v. 136, n. 1, p. 173-186, 2022. 1095-8312 0024-4066 http://hdl.handle.net/11449/240113 10.1093/biolinnean/blac026 2-s2.0-85130641432 |
url |
http://dx.doi.org/10.1093/biolinnean/blac026 http://hdl.handle.net/11449/240113 |
identifier_str_mv |
Biological Journal of the Linnean Society, v. 136, n. 1, p. 173-186, 2022. 1095-8312 0024-4066 10.1093/biolinnean/blac026 2-s2.0-85130641432 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biological Journal of the Linnean Society |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
173-186 |
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_ |
1808129134185938944 |