Responses of the haploid-to-diploid ratio of isomorphic biphasic life cycles to time instability
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | |
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. |
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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 |
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1799133268937801728 |