Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability

Detalhes bibliográficos
Autor(a) principal: Vieira, Vasco
Data de Publicação: 2012
Outros Autores: Santos, Rui
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/12056
Resumo: Previous modelling of the haploid-to-diploid ratio (H:D) in biphasic life cycles relied on estimates of the stable population growth rate and structure. This is a projective analysis that estimates the population dynamics given current conditions. However, the environment is rarely constant and has both periodicity and random instabilities. The objective of this work was to unveil how the H:D responds to them. It was found that ploidy phase dissimilarities on the demographic matrix and/or in the initial population structure cause an inevitable H:D time variability as a consequence of the life-cycle structure and independent of the environmental seasonal cycle. This variability depends on the type of life strategy, demographic processes involved and ploidy dissimilar vital rates. Furthermore, ploidy dissimilar fertility or growth rates cause cyclic oscillations mismatching the seasonal cycle, whereas ploidy dissimilarities in the ramet looping rates (survival related) induce a monotonical variation.
id RCAP_3bc28078932affeb9848239401679ed6
oai_identifier_str oai:sapientia.ualg.pt:10400.1/12056
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instabilityGelidium sesquipedale rhodophytaChondrus crispus rhodophytaPopulation dynamicsAlga mazzaellaHistory stagesWave exposureNova scotiaRed algaGigartinaceaeEvolutionPrevious modelling of the haploid-to-diploid ratio (H:D) in biphasic life cycles relied on estimates of the stable population growth rate and structure. This is a projective analysis that estimates the population dynamics given current conditions. However, the environment is rarely constant and has both periodicity and random instabilities. The objective of this work was to unveil how the H:D responds to them. It was found that ploidy phase dissimilarities on the demographic matrix and/or in the initial population structure cause an inevitable H:D time variability as a consequence of the life-cycle structure and independent of the environmental seasonal cycle. This variability depends on the type of life strategy, demographic processes involved and ploidy dissimilar vital rates. Furthermore, ploidy dissimilar fertility or growth rates cause cyclic oscillations mismatching the seasonal cycle, whereas ploidy dissimilarities in the ramet looping rates (survival related) induce a monotonical variation.Taylor & Francis LtdSapientiaVieira, VascoSantos, Rui2018-12-07T14:58:30Z20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/12056eng1751-375810.1080/17513758.2012.721901info: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:RCAAP2023-07-24T10:23:59Zoai:sapientia.ualg.pt:10400.1/12056Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:28.276443Repositório 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 Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
title Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
spellingShingle Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
Vieira, Vasco
Gelidium sesquipedale rhodophyta
Chondrus crispus rhodophyta
Population dynamics
Alga mazzaella
History stages
Wave exposure
Nova scotia
Red alga
Gigartinaceae
Evolution
title_short Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
title_full Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
title_fullStr Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
title_full_unstemmed Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
title_sort Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
author Vieira, Vasco
author_facet Vieira, Vasco
Santos, Rui
author_role author
author2 Santos, Rui
author2_role author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Vieira, Vasco
Santos, Rui
dc.subject.por.fl_str_mv Gelidium sesquipedale rhodophyta
Chondrus crispus rhodophyta
Population dynamics
Alga mazzaella
History stages
Wave exposure
Nova scotia
Red alga
Gigartinaceae
Evolution
topic Gelidium sesquipedale rhodophyta
Chondrus crispus rhodophyta
Population dynamics
Alga mazzaella
History stages
Wave exposure
Nova scotia
Red alga
Gigartinaceae
Evolution
description Previous modelling of the haploid-to-diploid ratio (H:D) in biphasic life cycles relied on estimates of the stable population growth rate and structure. This is a projective analysis that estimates the population dynamics given current conditions. However, the environment is rarely constant and has both periodicity and random instabilities. The objective of this work was to unveil how the H:D responds to them. It was found that ploidy phase dissimilarities on the demographic matrix and/or in the initial population structure cause an inevitable H:D time variability as a consequence of the life-cycle structure and independent of the environmental seasonal cycle. This variability depends on the type of life strategy, demographic processes involved and ploidy dissimilar vital rates. Furthermore, ploidy dissimilar fertility or growth rates cause cyclic oscillations mismatching the seasonal cycle, whereas ploidy dissimilarities in the ramet looping rates (survival related) induce a monotonical variation.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01T00:00:00Z
2018-12-07T14:58:30Z
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://hdl.handle.net/10400.1/12056
url http://hdl.handle.net/10400.1/12056
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1751-3758
10.1080/17513758.2012.721901
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis Ltd
publisher.none.fl_str_mv Taylor & Francis Ltd
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799133268937801728

Registros relacionados