Colonization and diversification shape species-area relationships in three Macaronesian archipelagos
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10400.13/4185 |
Resumo: | Aim: Species–area relationships (SARs) on oceanic archipelagos are shaped at least as much by speciation as by immigration–extinction dynamics. We examine three well‐studied Atlantic archipelagos to quantify the relative contributions of coloniza tion and diversification to individual and whole‐archipelago floras. Location: Three Macaronesian archipelagos: the Azores, Madeira and Canary Islands. Methods: We assessed the floras of all three archipelagos in order to compare SARs and numbers of endemic species with respect to the physical characteristics of each archipelago (geological age, isolation, and environmental diversity). Utilizing a large number of available phylogenies, we partitioned each flora into putative colonist lin eages. These were used to determine: (a) the number of original colonists of each archipelago, (b) degree of relatedness among these, and (c) the degree to which internal diversification contributes to species numbers for islands and archipelagos with different physical characteristics. Results: Archipelagos varied in the parameters of the SARs in relation to their phys ical characteristics. The Canarian and Madeiran floras demonstrate remarkably simi lar SARs with z values (slopes) near 0.3, while the Azorean flora exhibits fewer species per given area and a modest z value of 0.15. The Canarian and Madeiran endemic species are concentrated in a small number of diversifying lineages, whereas the Azorean endemics were mostly in anagenetic lineages (indicating mini mal internal diversification). Lineages that do not diversify within a given archipelago significantly tend not to diversify in others, whereas diversifying lineages tend to have more species in the Canarian flora when compared with related lineages in the others. Main conclusions: Although a strong independent effect of island area on species richness exists for the whole Macaronesian region, colonization and diversification are also influenced by geological age and environmental diversity of archipelagos, overriding characteristics of individual islands (“archipelago effect”). The “Azorean diversity enigma” likely results from a combination of geological youth, low environmental diversity and disproportionate human alteration. |
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Colonization and diversification shape species-area relationships in three Macaronesian archipelagosAzores (Portugal)Açores (Portugal)BiodiversityCanary Islands (Spain)FloraMacaronesiaMadeira (Portugal)PhylogenySpecies–area relationship.Faculdade de Ciências da VidaAim: Species–area relationships (SARs) on oceanic archipelagos are shaped at least as much by speciation as by immigration–extinction dynamics. We examine three well‐studied Atlantic archipelagos to quantify the relative contributions of coloniza tion and diversification to individual and whole‐archipelago floras. Location: Three Macaronesian archipelagos: the Azores, Madeira and Canary Islands. Methods: We assessed the floras of all three archipelagos in order to compare SARs and numbers of endemic species with respect to the physical characteristics of each archipelago (geological age, isolation, and environmental diversity). Utilizing a large number of available phylogenies, we partitioned each flora into putative colonist lin eages. These were used to determine: (a) the number of original colonists of each archipelago, (b) degree of relatedness among these, and (c) the degree to which internal diversification contributes to species numbers for islands and archipelagos with different physical characteristics. Results: Archipelagos varied in the parameters of the SARs in relation to their phys ical characteristics. The Canarian and Madeiran floras demonstrate remarkably simi lar SARs with z values (slopes) near 0.3, while the Azorean flora exhibits fewer species per given area and a modest z value of 0.15. The Canarian and Madeiran endemic species are concentrated in a small number of diversifying lineages, whereas the Azorean endemics were mostly in anagenetic lineages (indicating mini mal internal diversification). Lineages that do not diversify within a given archipelago significantly tend not to diversify in others, whereas diversifying lineages tend to have more species in the Canarian flora when compared with related lineages in the others. Main conclusions: Although a strong independent effect of island area on species richness exists for the whole Macaronesian region, colonization and diversification are also influenced by geological age and environmental diversity of archipelagos, overriding characteristics of individual islands (“archipelago effect”). The “Azorean diversity enigma” likely results from a combination of geological youth, low environmental diversity and disproportionate human alteration.WileyDigitUMaPrice, Jonathan P.Otto, RüdigerSequeira, Miguel Menezes deKueffer, ChristophSchaefer, HannoCaujapé-Castells, JuliFernández-Palacios, José María2022-03-28T09:06:22Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.13/4185engPrice, J. P., Otto, R., Sequeira, M. M., Kueffer, C., Schaefer, H., Caujapé‐Castells, J., & Fernández‐Palacios, J. M. (2018). Colonization and diversification shape species–area relationships in three Macaronesian archipelagos. Journal of Biogeography, 45(9), 2027-2039. 9. https://doi.org/10.1111/jbi.1339610.1111/jbi.13396info: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:RCAAP2023-02-19T04:42:48Zoai:digituma.uma.pt:10400.13/4185Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:08:06.414348Repositório 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 |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos |
title |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos |
spellingShingle |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos Price, Jonathan P. Azores (Portugal) Açores (Portugal) Biodiversity Canary Islands (Spain) Flora Macaronesia Madeira (Portugal) Phylogeny Species–area relationship . Faculdade de Ciências da Vida |
title_short |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos |
title_full |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos |
title_fullStr |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos |
title_full_unstemmed |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos |
title_sort |
Colonization and diversification shape species-area relationships in three Macaronesian archipelagos |
author |
Price, Jonathan P. |
author_facet |
Price, Jonathan P. Otto, Rüdiger Sequeira, Miguel Menezes de Kueffer, Christoph Schaefer, Hanno Caujapé-Castells, Juli Fernández-Palacios, José María |
author_role |
author |
author2 |
Otto, Rüdiger Sequeira, Miguel Menezes de Kueffer, Christoph Schaefer, Hanno Caujapé-Castells, Juli Fernández-Palacios, José María |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
DigitUMa |
dc.contributor.author.fl_str_mv |
Price, Jonathan P. Otto, Rüdiger Sequeira, Miguel Menezes de Kueffer, Christoph Schaefer, Hanno Caujapé-Castells, Juli Fernández-Palacios, José María |
dc.subject.por.fl_str_mv |
Azores (Portugal) Açores (Portugal) Biodiversity Canary Islands (Spain) Flora Macaronesia Madeira (Portugal) Phylogeny Species–area relationship . Faculdade de Ciências da Vida |
topic |
Azores (Portugal) Açores (Portugal) Biodiversity Canary Islands (Spain) Flora Macaronesia Madeira (Portugal) Phylogeny Species–area relationship . Faculdade de Ciências da Vida |
description |
Aim: Species–area relationships (SARs) on oceanic archipelagos are shaped at least as much by speciation as by immigration–extinction dynamics. We examine three well‐studied Atlantic archipelagos to quantify the relative contributions of coloniza tion and diversification to individual and whole‐archipelago floras. Location: Three Macaronesian archipelagos: the Azores, Madeira and Canary Islands. Methods: We assessed the floras of all three archipelagos in order to compare SARs and numbers of endemic species with respect to the physical characteristics of each archipelago (geological age, isolation, and environmental diversity). Utilizing a large number of available phylogenies, we partitioned each flora into putative colonist lin eages. These were used to determine: (a) the number of original colonists of each archipelago, (b) degree of relatedness among these, and (c) the degree to which internal diversification contributes to species numbers for islands and archipelagos with different physical characteristics. Results: Archipelagos varied in the parameters of the SARs in relation to their phys ical characteristics. The Canarian and Madeiran floras demonstrate remarkably simi lar SARs with z values (slopes) near 0.3, while the Azorean flora exhibits fewer species per given area and a modest z value of 0.15. The Canarian and Madeiran endemic species are concentrated in a small number of diversifying lineages, whereas the Azorean endemics were mostly in anagenetic lineages (indicating mini mal internal diversification). Lineages that do not diversify within a given archipelago significantly tend not to diversify in others, whereas diversifying lineages tend to have more species in the Canarian flora when compared with related lineages in the others. Main conclusions: Although a strong independent effect of island area on species richness exists for the whole Macaronesian region, colonization and diversification are also influenced by geological age and environmental diversity of archipelagos, overriding characteristics of individual islands (“archipelago effect”). The “Azorean diversity enigma” likely results from a combination of geological youth, low environmental diversity and disproportionate human alteration. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2018-01-01T00:00:00Z 2022-03-28T09:06:22Z |
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/10400.13/4185 |
url |
http://hdl.handle.net/10400.13/4185 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Price, J. P., Otto, R., Sequeira, M. M., Kueffer, C., Schaefer, H., Caujapé‐Castells, J., & Fernández‐Palacios, J. M. (2018). Colonization and diversification shape species–area relationships in three Macaronesian archipelagos. Journal of Biogeography, 45(9), 2027-2039. 9. https://doi.org/10.1111/jbi.13396 10.1111/jbi.13396 |
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 |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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