Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras

This study compares the phylogenetic structure in the Canary Islands and Hawaii by means of the distributions of the species number for plant families (Taxonomic evenness) and lineages (Phylogenetic evenness) across archipelagos and across habitats in both archipelagos using the Gini coefficient. We...

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Autores: Domínguez Lozano, Felipe, Price, Jonathan, Otto, Rüdiger, Fernández-Palacios, José María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:España
Institución:Universidad de La Laguna (ULL)
Repositorio:RIULL. Repositorio Institucional de la Universidad de La Laguna
OAI Identifier:oai:riull.ull.es:915/17500
Acceso en línea:http://riull.ull.es/xmlui/handle/915/17500
Access Level:acceso embargado
Palabra clave:Canary Islands
Gini coefficient
Hawaii
Island biogeography
Phylogenetic structure
Species richness
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spelling Using taxonomic and phylogenetic evenness to compare diversification in two Island FlorasDomínguez Lozano, FelipePrice, JonathanOtto, RüdigerFernández-Palacios, José MaríaCanary IslandsGini coefficientHawaiiIsland biogeographyPhylogenetic structureSpecies richnessThis study compares the phylogenetic structure in the Canary Islands and Hawaii by means of the distributions of the species number for plant families (Taxonomic evenness) and lineages (Phylogenetic evenness) across archipelagos and across habitats in both archipelagos using the Gini coefficient. We then investigate phylogenies to identify particular habitats contributing to such differences using Taxonomic distinctness (AvTD) and its variation (VarTD). Our results show that the distribution of species number among Hawaiian lineages is much more uneven than the Canary Islands. In contrast, Hawaii produces a more even distribution of species number by family than the Canary Islands. This may be due to the Hawaiian Flora being derived from considerably fewer colonists than the Canarian Flora as a result of its much greater degree of isolation. At the same time, Hawaii is represented by the same number of families as the Canary Islands. This may stem from Hawaii’s flora being derived from a greater range of source areas despite its isolation. Finally, there is much more diversification spread across a larger number of lineages in Hawaii. The higher degree of Hawaiian diversification may be due to a greater range of habitats, more diverse and phylogenetically distinct floristic sources, and low initial species diversity resulting from extreme isolation. Two Canarian habitats (Rock communities and Thermophilous habitats) and one Hawaiian habitat (Wet communities) contribute to the differences in phylogenetic structure between the two archipelagos. These habitats exhibit disproportionate levels of unevenness and may represent centres of diversification. We propose a combination of two habitat properties, high receptivity and low stability, to explain these results.201920192010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://riull.ull.es/xmlui/handle/915/17500reponame:RIULL. Repositorio Institucional de la Universidad de La Lagunainstname:Universidad de La Laguna (ULL)InglésPerspectives in Plant Ecology, Evolution and Systematics;Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/embargoedAccessoai:riull.ull.es:915/175002026-06-22T13:13:57Z
dc.title.none.fl_str_mv Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
title Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
spellingShingle Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
Domínguez Lozano, Felipe
Canary Islands
Gini coefficient
Hawaii
Island biogeography
Phylogenetic structure
Species richness
title_short Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
title_full Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
title_fullStr Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
title_full_unstemmed Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
title_sort Using taxonomic and phylogenetic evenness to compare diversification in two Island Floras
dc.creator.none.fl_str_mv Domínguez Lozano, Felipe
Price, Jonathan
Otto, Rüdiger
Fernández-Palacios, José María
author Domínguez Lozano, Felipe
author_facet Domínguez Lozano, Felipe
Price, Jonathan
Otto, Rüdiger
Fernández-Palacios, José María
author_role author
author2 Price, Jonathan
Otto, Rüdiger
Fernández-Palacios, José María
author2_role author
author
author
dc.subject.none.fl_str_mv Canary Islands
Gini coefficient
Hawaii
Island biogeography
Phylogenetic structure
Species richness
topic Canary Islands
Gini coefficient
Hawaii
Island biogeography
Phylogenetic structure
Species richness
description This study compares the phylogenetic structure in the Canary Islands and Hawaii by means of the distributions of the species number for plant families (Taxonomic evenness) and lineages (Phylogenetic evenness) across archipelagos and across habitats in both archipelagos using the Gini coefficient. We then investigate phylogenies to identify particular habitats contributing to such differences using Taxonomic distinctness (AvTD) and its variation (VarTD). Our results show that the distribution of species number among Hawaiian lineages is much more uneven than the Canary Islands. In contrast, Hawaii produces a more even distribution of species number by family than the Canary Islands. This may be due to the Hawaiian Flora being derived from considerably fewer colonists than the Canarian Flora as a result of its much greater degree of isolation. At the same time, Hawaii is represented by the same number of families as the Canary Islands. This may stem from Hawaii’s flora being derived from a greater range of source areas despite its isolation. Finally, there is much more diversification spread across a larger number of lineages in Hawaii. The higher degree of Hawaiian diversification may be due to a greater range of habitats, more diverse and phylogenetically distinct floristic sources, and low initial species diversity resulting from extreme isolation. Two Canarian habitats (Rock communities and Thermophilous habitats) and one Hawaiian habitat (Wet communities) contribute to the differences in phylogenetic structure between the two archipelagos. These habitats exhibit disproportionate levels of unevenness and may represent centres of diversification. We propose a combination of two habitat properties, high receptivity and low stability, to explain these results.
publishDate 2010
dc.date.none.fl_str_mv 2010
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
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format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://riull.ull.es/xmlui/handle/915/17500
url http://riull.ull.es/xmlui/handle/915/17500
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Perspectives in Plant Ecology, Evolution and Systematics;
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv embargoedAccess
dc.source.none.fl_str_mv reponame:RIULL. Repositorio Institucional de la Universidad de La Laguna
instname:Universidad de La Laguna (ULL)
instname_str Universidad de La Laguna (ULL)
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collection RIULL. Repositorio Institucional de la Universidad de La Laguna
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