Why Flightless Birds are 'Condemned' to Lay Eggs

Detalhes bibliográficos
Autor(a) principal: Barreiros, João P.
Data de Publicação: 2017
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/4151
Resumo: Letter To Editor
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spelling Why Flightless Birds are 'Condemned' to Lay EggsEvolutionAvian Fast EvolutionAvesLetter To EditorBirds evolved very fast and are the only vertebrate group that never turned to ovoviviparity. While this is explainable as an evolutionary pressure for feathered flight and reduced size, their fast evolution apparently caused the disappearance of a significant proportion of genes. However posterior evolutionary trends of Aves to become flightless and with increased body sizes were not accompanied by an ‘expected’ turn to ovoviviparity, something known for a number of reptile taxa (e.g. some constrictor serpents). This impossibility is particularly noted in marine flightless birds from which penguins are certainly the best extant example having to endure seasonal extreme energy losses when coming ashore to lay eggs. This same limitation was most certainly the major cause for the extinction of the largest marine bird in the Northern Hemisphere – The Great Auk Pinguinus impennis. Here we discuss why ovoviviparism is probably an impossibility for birds while proposing lines of research that could prove, or disprove, our hypothetical and speculative view.SciTechnolRepositório da Universidade dos AçoresBarreiros, João P.2017-05-11T17:25:23Z2017-022017-02-16T01:29:09Z2017-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/4151engBarreiros, J. P. (2017). Why Flightless Birds are 'Condemned' to Lay Eggs, "Journal of Biodiversity Management & Forestry", 6(1), 1-2. doi: 10.4172/2327-4417.10001722327-441710.4172/2327-4417.1000172info: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:RCAAP2022-12-20T14:32:16Zoai:repositorio.uac.pt:10400.3/4151Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:26:34.544224Repositório 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 Why Flightless Birds are 'Condemned' to Lay Eggs
title Why Flightless Birds are 'Condemned' to Lay Eggs
spellingShingle Why Flightless Birds are 'Condemned' to Lay Eggs
Barreiros, João P.
Evolution
Avian Fast Evolution
Aves
title_short Why Flightless Birds are 'Condemned' to Lay Eggs
title_full Why Flightless Birds are 'Condemned' to Lay Eggs
title_fullStr Why Flightless Birds are 'Condemned' to Lay Eggs
title_full_unstemmed Why Flightless Birds are 'Condemned' to Lay Eggs
title_sort Why Flightless Birds are 'Condemned' to Lay Eggs
author Barreiros, João P.
author_facet Barreiros, João P.
author_role author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Barreiros, João P.
dc.subject.por.fl_str_mv Evolution
Avian Fast Evolution
Aves
topic Evolution
Avian Fast Evolution
Aves
description Letter To Editor
publishDate 2017
dc.date.none.fl_str_mv 2017-05-11T17:25:23Z
2017-02
2017-02-16T01:29:09Z
2017-02-01T00:00:00Z
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/10400.3/4151
url http://hdl.handle.net/10400.3/4151
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Barreiros, J. P. (2017). Why Flightless Birds are 'Condemned' to Lay Eggs, "Journal of Biodiversity Management & Forestry", 6(1), 1-2. doi: 10.4172/2327-4417.1000172
2327-4417
10.4172/2327-4417.1000172
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 SciTechnol
publisher.none.fl_str_mv SciTechnol
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
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