Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)?
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/10991 |
Resumo: | The painted goby Pomatoschistus pictus is a small marine benthic fish species that inhabits coastal sandy, rocky or gravel substrates. Breeding occurs from January to May, when nesting males court nearby females by performing displays with both visual and vocal components. After spawning females abandon the nest while the males take care of the brood. Males with a higher lipid content appear to invest more in acoustic (drum signals) rather than in visual courtship, suggesting that drumming activity is a good indicator of male fat reserves. Thus, males with higher acoustic activity could be signalling better male quality and likely better parental care abilities, as the latter is typically condition-dependent. Here we tested the effect of different calling rates on female mate choice with playback experiments to assess if the males with highest acoustic signalling rates are the most successful in mating. During trials females could choose between matched size males associated with either high or low calling rate. Females consistently showed preference for males associated to high drum playback rates, provided they had access to the males. However, if females did not have visual contact with males, no preference was shown. The females preference appeared to be solely determined by the calling rate since the total visual courtship and male condition (K factor) were similar between males associated with high and low calling rates. Taken together these results suggest that females select males based on higher acoustic courtship intensity because this may be an indicator of parental quality. |
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Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)?Pomatoschistus pictusEscolha de parceirosComunicação acústicaEmissões de playbackAtividade de chamamentoDomínio/Área Científica::Ciências Naturais::Outras Ciências NaturaisThe painted goby Pomatoschistus pictus is a small marine benthic fish species that inhabits coastal sandy, rocky or gravel substrates. Breeding occurs from January to May, when nesting males court nearby females by performing displays with both visual and vocal components. After spawning females abandon the nest while the males take care of the brood. Males with a higher lipid content appear to invest more in acoustic (drum signals) rather than in visual courtship, suggesting that drumming activity is a good indicator of male fat reserves. Thus, males with higher acoustic activity could be signalling better male quality and likely better parental care abilities, as the latter is typically condition-dependent. Here we tested the effect of different calling rates on female mate choice with playback experiments to assess if the males with highest acoustic signalling rates are the most successful in mating. During trials females could choose between matched size males associated with either high or low calling rate. Females consistently showed preference for males associated to high drum playback rates, provided they had access to the males. However, if females did not have visual contact with males, no preference was shown. The females preference appeared to be solely determined by the calling rate since the total visual courtship and male condition (K factor) were similar between males associated with high and low calling rates. Taken together these results suggest that females select males based on higher acoustic courtship intensity because this may be an indicator of parental quality.O góbio pintado, Pomatoschistus pictus, é uma espécie de peixe marinho bentónico que habita em ambientes costeiros em substrato arenoso ou rochoso. A época de reprodução ocorre de Janeiro a Março quando os machos cortejam as fêmeas ao realizarem várias exibições visuais e vocais. Depois da desova, as fêmeas abandonam o ninho, ficando responsável pela descendência. Machos que apresente um maior conteúdo lipídico aparentam investir mais na corte acústica do que na corte visual, que sugere que a atividade acústica é um bom indicador das reservas lipídicas do macho. Como tal, machos com uma taxa de canto elevada podem indicar uma melhor competência no cuidado parental, visto que esta depende da sua condição. Foram testados os efeitos de diferentes taxas sonoras na escolha de parceiro pela fêmea através de emissões de playback de modo a determinar se os machos com taxas de canto mais elevadas são, de facto, preferidos pelas fêmeas. Durante cada experiência a fêmea podia escolher entre machos de tamanhos similares que estavam associados a diferentes taxas de canto, sendo estas elevadas ou reduzidas. Consistentemente, a fêmea mostrou preferência pelos machos associados à taxa de canto mais elevada, tendo em conta que estas tinham acesso aos machos. Porém, quando as fêmeas não tivessem contacto visual com os machos, não era demonstrada nenhuma preferência. A preferência da fêmea aparenta ser somente determinada pela taxa de canto pois a corte visual total assim como a condição do macho (fator K) eram similares entre machos associados a taxas de canto elevadas e reduzidas. Estes resultados sugerem que a preferência das fêmeas é determinada por uma intensidade de corte acústica mais elevada pois esta pode ser um indicador de qualidade parental.Modesto, TeresaSapientiaGameiro, Rafaela Garcia2018-11-23T10:19:41Z2018-01-152018-01-15T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.1/10991TID:202012964enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:22:42Zoai:sapientia.ualg.pt:10400.1/10991Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:02:32.664881Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? |
title |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? |
spellingShingle |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? Gameiro, Rafaela Garcia Pomatoschistus pictus Escolha de parceiros Comunicação acústica Emissões de playback Atividade de chamamento Domínio/Área Científica::Ciências Naturais::Outras Ciências Naturais |
title_short |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? |
title_full |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? |
title_fullStr |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? |
title_full_unstemmed |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? |
title_sort |
Does calling activity affect mate choice decisions in a vocal fish, the painted goby (Pomatoschistus pictus)? |
author |
Gameiro, Rafaela Garcia |
author_facet |
Gameiro, Rafaela Garcia |
author_role |
author |
dc.contributor.none.fl_str_mv |
Modesto, Teresa Sapientia |
dc.contributor.author.fl_str_mv |
Gameiro, Rafaela Garcia |
dc.subject.por.fl_str_mv |
Pomatoschistus pictus Escolha de parceiros Comunicação acústica Emissões de playback Atividade de chamamento Domínio/Área Científica::Ciências Naturais::Outras Ciências Naturais |
topic |
Pomatoschistus pictus Escolha de parceiros Comunicação acústica Emissões de playback Atividade de chamamento Domínio/Área Científica::Ciências Naturais::Outras Ciências Naturais |
description |
The painted goby Pomatoschistus pictus is a small marine benthic fish species that inhabits coastal sandy, rocky or gravel substrates. Breeding occurs from January to May, when nesting males court nearby females by performing displays with both visual and vocal components. After spawning females abandon the nest while the males take care of the brood. Males with a higher lipid content appear to invest more in acoustic (drum signals) rather than in visual courtship, suggesting that drumming activity is a good indicator of male fat reserves. Thus, males with higher acoustic activity could be signalling better male quality and likely better parental care abilities, as the latter is typically condition-dependent. Here we tested the effect of different calling rates on female mate choice with playback experiments to assess if the males with highest acoustic signalling rates are the most successful in mating. During trials females could choose between matched size males associated with either high or low calling rate. Females consistently showed preference for males associated to high drum playback rates, provided they had access to the males. However, if females did not have visual contact with males, no preference was shown. The females preference appeared to be solely determined by the calling rate since the total visual courtship and male condition (K factor) were similar between males associated with high and low calling rates. Taken together these results suggest that females select males based on higher acoustic courtship intensity because this may be an indicator of parental quality. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-23T10:19:41Z 2018-01-15 2018-01-15T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/10991 TID:202012964 |
url |
http://hdl.handle.net/10400.1/10991 |
identifier_str_mv |
TID:202012964 |
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eng |
language |
eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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