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Links to rare climates do not translate into distinct traits for island endemics.

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Peer-reviewed

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Article

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Abstract

Current models of island biogeography treat endemic and non-endemic species as if they were functionally equivalent, focussing primarily on species richness. Thus, the functional composition of island biotas in relation to island biogeographical variables remains largely unknown. Using plant trait data (plant height, leaf area and flower length) for 895 native species in the Canary Islands, we related functional trait distinctiveness and climate rarity for endemic and non-endemic species and island ages. Endemics showed a link to climatically rare conditions that is consistent with island geological change through time. However, functional trait distinctiveness did not differ between endemics and non-endemics and remained constant with island age. Thus, there is no obvious link between trait distinctiveness and occupancy of rare climates, at least for the traits measured here, suggesting that treating endemic and non-endemic species as functionally equivalent in island biogeography is not fundamentally wrong.

Description

Funder: Électricité de France; Id: http://dx.doi.org/10.13039/501100006289


Funder: Fondation pour la Recherche sur la Biodiversite; Id: http://dx.doi.org/10.13039/501100003137


Funder: Research Foundation; Id: http://dx.doi.org/10.13039/100005930


Funder: Fondation pour la Recherche sur la Biodiversité; Id: http://dx.doi.org/10.13039/501100003137

Keywords

adaptive radiation, climatic rarity, functional trait distinctiveness, island biogeography, oceanic islands, originality, plants, specialisation, speciation, taxon cycle, Plants, Phenotype, Climate, Plant Leaves, Spain, Islands

Journal Title

Ecol Lett

Conference Name

Journal ISSN

1461-023X
1461-0248

Volume Title

Publisher

Wiley
Sponsorship
Deutsche Forschungsgemeinschaft (Research Training Group 1644 ‘Scaling Problems i)
Natural Environment Research Council (NE/L002604/1)