Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10452-023-10022-0 http://hdl.handle.net/11449/248658 |
Resumo: | Gastropod shells play an important role in the life story of hermit crabs, influencing biological characteristics directly. The adequacy of shells for hermit crabs can be evaluated through the Shell Adequacy Index, which calculates the shell's ideal size/weight compared to the actual dimensions of the occupied shells. To avoid competition for shells, animals can display a variety of strategies including alterations in their circadian rhythms. This study aimed to evaluate if two sympatric species of hermit crabs—Pagurus brevidactylus and Pagurus criniticornis—are competing for the best fitting shells and if they present differences in their circadian rhythms. Their shells were identified and measured regarding the aperture length and width. The shell adequacy was calculated using linear models of the Shell Aperture Length and Width, and the period of activity of the animals was filmed for 24 h and later analyzed. The period between 10 am and 2 pm represented daytime, while 10 pm to 2 am represented nighttime. Pagurus brevidactylus occupied mainly Cerithium atratum and Claremontiella nodulosa shells, while P. criniticornis occupied mainly C. atratum shells. Our results showed that the two species are inhabiting shells with similar traits, which may indicate competition. The species do not present distinct activity periods; however, the shell occupation pattern suggests a competition at the functional level. |
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Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patternsCircadian rhythmHermit crabsPagurusShell adequacy indexGastropod shells play an important role in the life story of hermit crabs, influencing biological characteristics directly. The adequacy of shells for hermit crabs can be evaluated through the Shell Adequacy Index, which calculates the shell's ideal size/weight compared to the actual dimensions of the occupied shells. To avoid competition for shells, animals can display a variety of strategies including alterations in their circadian rhythms. This study aimed to evaluate if two sympatric species of hermit crabs—Pagurus brevidactylus and Pagurus criniticornis—are competing for the best fitting shells and if they present differences in their circadian rhythms. Their shells were identified and measured regarding the aperture length and width. The shell adequacy was calculated using linear models of the Shell Aperture Length and Width, and the period of activity of the animals was filmed for 24 h and later analyzed. The period between 10 am and 2 pm represented daytime, while 10 pm to 2 am represented nighttime. Pagurus brevidactylus occupied mainly Cerithium atratum and Claremontiella nodulosa shells, while P. criniticornis occupied mainly C. atratum shells. Our results showed that the two species are inhabiting shells with similar traits, which may indicate competition. The species do not present distinct activity periods; however, the shell occupation pattern suggests a competition at the functional level.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Pro-Reitoria de Pesquisa, Universidade de São PauloConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Museu de Zoologia da Universidade de São Paulo (MZUSP) Universidade de São Paulo (USP), São PauloLaboratório de Biologia de Invertebrados Aquáticos (LABIAQUA) Departamento de Biodiversidade e Bioestatística Instituto de Biociências de Botucatu (IBB) Universidade Estadual Paulista (UNESP), São PauloLaboratório de Biologia Aquática Departamento de Ciências Biológicas Universidade Estadual Do Centro-Oeste (UNICENTRO), ParanáLaboratório de Biologia de Invertebrados Aquáticos (LABIAQUA) Departamento de Biodiversidade e Bioestatística Instituto de Biociências de Botucatu (IBB) Universidade Estadual Paulista (UNESP), São PauloCNPq: #151038/2022-8FAPESP: FAPESP #2019/01287-8Universidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Universidade Estadual Do Centro-Oeste (UNICENTRO)da Silva, Alexandre R.Santos, Renan A. P. [UNESP]Rodrigues, Gabriel F. B. [UNESP]Vieira, Neida R.Baroni, Bruna K.Gregati, Rafael A.2023-07-29T13:50:01Z2023-07-29T13:50:01Z2023-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article459-469http://dx.doi.org/10.1007/s10452-023-10022-0Aquatic Ecology, v. 57, n. 2, p. 459-469, 2023.1573-51251386-2588http://hdl.handle.net/11449/24865810.1007/s10452-023-10022-02-s2.0-85151982835Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAquatic Ecologyinfo:eu-repo/semantics/openAccess2023-07-29T13:50:01Zoai:repositorio.unesp.br:11449/248658Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:37:27.322732Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns |
title |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns |
spellingShingle |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns da Silva, Alexandre R. Circadian rhythm Hermit crabs Pagurus Shell adequacy index |
title_short |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns |
title_full |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns |
title_fullStr |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns |
title_full_unstemmed |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns |
title_sort |
Coexistence of two sympatric hermit crab species from South Brazil: the effect of the shell adequacy index and circadian movement patterns |
author |
da Silva, Alexandre R. |
author_facet |
da Silva, Alexandre R. Santos, Renan A. P. [UNESP] Rodrigues, Gabriel F. B. [UNESP] Vieira, Neida R. Baroni, Bruna K. Gregati, Rafael A. |
author_role |
author |
author2 |
Santos, Renan A. P. [UNESP] Rodrigues, Gabriel F. B. [UNESP] Vieira, Neida R. Baroni, Bruna K. Gregati, Rafael A. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) Universidade Estadual Do Centro-Oeste (UNICENTRO) |
dc.contributor.author.fl_str_mv |
da Silva, Alexandre R. Santos, Renan A. P. [UNESP] Rodrigues, Gabriel F. B. [UNESP] Vieira, Neida R. Baroni, Bruna K. Gregati, Rafael A. |
dc.subject.por.fl_str_mv |
Circadian rhythm Hermit crabs Pagurus Shell adequacy index |
topic |
Circadian rhythm Hermit crabs Pagurus Shell adequacy index |
description |
Gastropod shells play an important role in the life story of hermit crabs, influencing biological characteristics directly. The adequacy of shells for hermit crabs can be evaluated through the Shell Adequacy Index, which calculates the shell's ideal size/weight compared to the actual dimensions of the occupied shells. To avoid competition for shells, animals can display a variety of strategies including alterations in their circadian rhythms. This study aimed to evaluate if two sympatric species of hermit crabs—Pagurus brevidactylus and Pagurus criniticornis—are competing for the best fitting shells and if they present differences in their circadian rhythms. Their shells were identified and measured regarding the aperture length and width. The shell adequacy was calculated using linear models of the Shell Aperture Length and Width, and the period of activity of the animals was filmed for 24 h and later analyzed. The period between 10 am and 2 pm represented daytime, while 10 pm to 2 am represented nighttime. Pagurus brevidactylus occupied mainly Cerithium atratum and Claremontiella nodulosa shells, while P. criniticornis occupied mainly C. atratum shells. Our results showed that the two species are inhabiting shells with similar traits, which may indicate competition. The species do not present distinct activity periods; however, the shell occupation pattern suggests a competition at the functional level. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:50:01Z 2023-07-29T13:50:01Z 2023-06-01 |
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/10.1007/s10452-023-10022-0 Aquatic Ecology, v. 57, n. 2, p. 459-469, 2023. 1573-5125 1386-2588 http://hdl.handle.net/11449/248658 10.1007/s10452-023-10022-0 2-s2.0-85151982835 |
url |
http://dx.doi.org/10.1007/s10452-023-10022-0 http://hdl.handle.net/11449/248658 |
identifier_str_mv |
Aquatic Ecology, v. 57, n. 2, p. 459-469, 2023. 1573-5125 1386-2588 10.1007/s10452-023-10022-0 2-s2.0-85151982835 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aquatic Ecology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
459-469 |
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_ |
1808128836232019968 |