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Our analyses of functional diversity (FD) for spiders and beetles in the Azorean archipelago reveal that FD increases with species richness, which, in turn scales with island area regardless of the taxa and distributional group considered (endemics, natives, and exotics). Our results also support the hypothesis that each group contributes to FD in proportion to their species richness and that, being dominant, exotic species have significantly extended the realized trait space of the Azorean islands. Further analyses in other archipelagos are needed to establish whether our findings are representative of oceanic islands.<\/jats:p>","DOI":"10.1073\/pnas.1218036111","type":"journal-article","created":{"date-parts":[[2014,9,16]],"date-time":"2014-09-16T08:31:40Z","timestamp":1410856300000},"page":"13709-13714","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":118,"title":["Functional biogeography of oceanic islands and the scaling of functional diversity in the Azores"],"prefix":"10.1073","volume":"111","author":[{"given":"Robert J.","family":"Whittaker","sequence":"first","affiliation":[{"name":"School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, United Kingdom;"},{"name":"Centre for Macroecology, Evolution and Climate, Department of Biology, University of Copenhagen, Copenhagen, Denmark;"}]},{"given":"Fran\u00e7ois","family":"Rigal","sequence":"additional","affiliation":[{"name":"Azorean Biodiversity Group, Centro de Investiga\u00e7\u00e3o e Tecnologias Agr\u00e1rias dos A\u00e7ores (CITA-A), and Platform for Enhancing Ecological Research and Sustainability (PEERS), Departamento de Ci\u00eancias Agr\u00e1rias, Universidade dos A\u00e7ores, S\u00e3o Pedro, 9700-042 Angra do Hero\u00edsmo, Terceira, Azores, Portugal;"}]},{"given":"Paulo A.V.","family":"Borges","sequence":"additional","affiliation":[{"name":"Azorean Biodiversity Group, Centro de Investiga\u00e7\u00e3o e Tecnologias Agr\u00e1rias dos A\u00e7ores (CITA-A), and Platform for Enhancing Ecological Research and Sustainability (PEERS), Departamento de Ci\u00eancias Agr\u00e1rias, Universidade dos A\u00e7ores, S\u00e3o Pedro, 9700-042 Angra do Hero\u00edsmo, Terceira, Azores, Portugal;"}]},{"given":"Pedro","family":"Cardoso","sequence":"additional","affiliation":[{"name":"Azorean Biodiversity Group, Centro de Investiga\u00e7\u00e3o e Tecnologias Agr\u00e1rias dos A\u00e7ores (CITA-A), and Platform for Enhancing Ecological Research and Sustainability (PEERS), Departamento de Ci\u00eancias Agr\u00e1rias, Universidade dos A\u00e7ores, S\u00e3o Pedro, 9700-042 Angra do Hero\u00edsmo, Terceira, Azores, Portugal;"},{"name":"National Museum of Natural History, Smithsonian Institution, Washington, DC 20560;"},{"name":"Finnish Museum of Natural History, University of Helsinki, 00014, Helsinki, Finland;"}]},{"given":"Sofia","family":"Terzopoulou","sequence":"additional","affiliation":[{"name":"Azorean Biodiversity Group, Centro de Investiga\u00e7\u00e3o e Tecnologias Agr\u00e1rias dos A\u00e7ores (CITA-A), and Platform for Enhancing Ecological Research and Sustainability (PEERS), Departamento de Ci\u00eancias Agr\u00e1rias, Universidade dos A\u00e7ores, S\u00e3o Pedro, 9700-042 Angra do Hero\u00edsmo, Terceira, Azores, Portugal;"},{"name":"Department of Ecology and Taxonomy, Faculty of Biology, National and Kapodistrian University of Athens, GR-15784 Athens, Greece;"}]},{"given":"Fernando","family":"Casanoves","sequence":"additional","affiliation":[{"name":"Headquarters, Centro Agron\u00f3mico Tropical de Investigaci\u00f3n y Ense\u00f1anza, CATIE 7170, Cartago, Turrialba 30501, Costa Rica;"}]},{"given":"Laura","family":"Pla","sequence":"additional","affiliation":[{"name":"Complejo Docente el Hatillo, Universidad Nacional Experimental Francisco de Miranda, Apartado 7434, Coro 4101, Venezuela;"}]},{"given":"Fran\u00e7ois","family":"Guilhaumon","sequence":"additional","affiliation":[{"name":"Azorean Biodiversity Group, Centro de Investiga\u00e7\u00e3o e Tecnologias Agr\u00e1rias dos A\u00e7ores (CITA-A), and Platform for Enhancing Ecological Research and Sustainability (PEERS), Departamento de Ci\u00eancias Agr\u00e1rias, Universidade dos A\u00e7ores, S\u00e3o Pedro, 9700-042 Angra do Hero\u00edsmo, Terceira, Azores, Portugal;"},{"name":"\u201cRui Nabeiro\u201d Biodiversity Chair, Centro de Investiga\u00e7\u00e3o em Biodiversidade e Recursos Gen\u00e9ticos, Universidade de \u00c9vora, 7000-890 \u00c9vora, Portugal; 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