Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma
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/10.1086/720581 http://hdl.handle.net/11449/241565 |
Resumo: | Insular land crabs (Gecarcinidae) can transit between terrestrial and aquatic environments and inhabit vacant ecological niches that other species do not occupy in oceanic islands. During the reproductive period, these crabs migrate between residential and reproductive areas; this is a critical moment because individuals are more vulnerable to stressful conditions, especially species occupying anthropized islands. Currently, many insular crab species are considered threatened; yet few studies have evaluated the biology of this group, especially the size at which individuals reach sexual maturity. Here, we evaluate the size at the onset of morphological, physiological, and functional maturity for the insular land crab Johngarthia lagostoma in Trindade Island (Brazil) and assess the chronology of the events underlying those processes. Males and females exhibited the same order of occurrence of the different maturity processes, starting by being morphologically, physiologically, and, finally, functionally mature at similar sizes (about 56 mm carapace width). This value corresponds to at least half of the maximum size that J. lagostoma reaches in Trindade Island and is close to the average relative value registered to other Gecarcinidae species. Considering the current decline in the population of insular crabs, such estimates can be used in management programs, mainly for the definition and protection of breeding and recruitment areas. Specifically, our results can be used toward the conservation of J. lagostoma, which is currently classified as endangered in Brazil, especially in the isolated population of Trindade Island. |
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Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostomaInsular land crabs (Gecarcinidae) can transit between terrestrial and aquatic environments and inhabit vacant ecological niches that other species do not occupy in oceanic islands. During the reproductive period, these crabs migrate between residential and reproductive areas; this is a critical moment because individuals are more vulnerable to stressful conditions, especially species occupying anthropized islands. Currently, many insular crab species are considered threatened; yet few studies have evaluated the biology of this group, especially the size at which individuals reach sexual maturity. Here, we evaluate the size at the onset of morphological, physiological, and functional maturity for the insular land crab Johngarthia lagostoma in Trindade Island (Brazil) and assess the chronology of the events underlying those processes. Males and females exhibited the same order of occurrence of the different maturity processes, starting by being morphologically, physiologically, and, finally, functionally mature at similar sizes (about 56 mm carapace width). This value corresponds to at least half of the maximum size that J. lagostoma reaches in Trindade Island and is close to the average relative value registered to other Gecarcinidae species. Considering the current decline in the population of insular crabs, such estimates can be used in management programs, mainly for the definition and protection of breeding and recruitment areas. Specifically, our results can be used toward the conservation of J. lagostoma, which is currently classified as endangered in Brazil, especially in the isolated population of Trindade Island.Universidade Estadual Paulista (UNESP) Instituto de Biociências Campus do Litoral Paulista (IB/CLP) Grupo de Pesquisa em Biologia de Crustáceos (CRUSTA) Laboratório de Biologia da Conservação de Crustáceos e Ambientes Costeiros (LBC), SPPrograma de Pós-Graduação em Ecologia Evolução e Biodiversidade (UNESP IB/RC), SPUniversidade Federal do ABC (UFABC) Centro de Ciências Naturais e Humanas, SPUniversidade Federal de Santa Catarina (UFSC) Departamento de Ecologia e Zoologia Laboratório de Crustáceos e Plâncton, SCUniversidade Estadual Paulista (UNESP) Instituto de Biociências Campus do Litoral Paulista (IB/CLP) Grupo de Pesquisa em Biologia de Crustáceos (CRUSTA) Laboratório de Biologia da Conservação de Crustáceos e Ambientes Costeiros (LBC), SPPrograma de Pós-Graduação em Ecologia Evolução e Biodiversidade (UNESP IB/RC), SPUniversidade Estadual Paulista (UNESP)Universidade Federal do ABC (UFABC)Universidade Federal de Santa Catarina (UFSC)João, Marcio C. A. [UNESP]Duarte, Rafael C.Bispo da Silva, Letícia S. [UNESP]Freire, Andrea S.Pinheiro, Marcelo A. A. [UNESP]2023-03-01T21:10:25Z2023-03-01T21:10:25Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1086/720581Biological Bulletin.1939-86970006-3185http://hdl.handle.net/11449/24156510.1086/7205812-s2.0-85136793992Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiological Bulletininfo:eu-repo/semantics/openAccess2023-03-01T21:10:25Zoai:repositorio.unesp.br:11449/241565Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:34:36.607025Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma |
title |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma |
spellingShingle |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma João, Marcio C. A. [UNESP] |
title_short |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma |
title_full |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma |
title_fullStr |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma |
title_full_unstemmed |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma |
title_sort |
Sexual Maturity of an Endemic Insular Land Crab: Priority Information toward the Conservation of Johngarthia lagostoma |
author |
João, Marcio C. A. [UNESP] |
author_facet |
João, Marcio C. A. [UNESP] Duarte, Rafael C. Bispo da Silva, Letícia S. [UNESP] Freire, Andrea S. Pinheiro, Marcelo A. A. [UNESP] |
author_role |
author |
author2 |
Duarte, Rafael C. Bispo da Silva, Letícia S. [UNESP] Freire, Andrea S. Pinheiro, Marcelo A. A. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal do ABC (UFABC) Universidade Federal de Santa Catarina (UFSC) |
dc.contributor.author.fl_str_mv |
João, Marcio C. A. [UNESP] Duarte, Rafael C. Bispo da Silva, Letícia S. [UNESP] Freire, Andrea S. Pinheiro, Marcelo A. A. [UNESP] |
description |
Insular land crabs (Gecarcinidae) can transit between terrestrial and aquatic environments and inhabit vacant ecological niches that other species do not occupy in oceanic islands. During the reproductive period, these crabs migrate between residential and reproductive areas; this is a critical moment because individuals are more vulnerable to stressful conditions, especially species occupying anthropized islands. Currently, many insular crab species are considered threatened; yet few studies have evaluated the biology of this group, especially the size at which individuals reach sexual maturity. Here, we evaluate the size at the onset of morphological, physiological, and functional maturity for the insular land crab Johngarthia lagostoma in Trindade Island (Brazil) and assess the chronology of the events underlying those processes. Males and females exhibited the same order of occurrence of the different maturity processes, starting by being morphologically, physiologically, and, finally, functionally mature at similar sizes (about 56 mm carapace width). This value corresponds to at least half of the maximum size that J. lagostoma reaches in Trindade Island and is close to the average relative value registered to other Gecarcinidae species. Considering the current decline in the population of insular crabs, such estimates can be used in management programs, mainly for the definition and protection of breeding and recruitment areas. Specifically, our results can be used toward the conservation of J. lagostoma, which is currently classified as endangered in Brazil, especially in the isolated population of Trindade Island. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 2023-03-01T21:10:25Z 2023-03-01T21:10:25Z |
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/10.1086/720581 Biological Bulletin. 1939-8697 0006-3185 http://hdl.handle.net/11449/241565 10.1086/720581 2-s2.0-85136793992 |
url |
http://dx.doi.org/10.1086/720581 http://hdl.handle.net/11449/241565 |
identifier_str_mv |
Biological Bulletin. 1939-8697 0006-3185 10.1086/720581 2-s2.0-85136793992 |
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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1808129222055559168 |