Dagmar M. Hanz
Climatic and biogeographical drivers of functional diversity in the flora of the Canary Islands
Hanz, Dagmar M.; Cutts, Vanessa; Barajas-Barbosa, Martha Paola; Algar, Adam C.; Beierkuhnlein, Carl; Fernández-Palacios, José María; Field, Richard; Kreft, Holger; Steinbauer, Manuel J.; Weigelt, Patrick; Irl, Severin D.H.; Davies, Jonathan
Authors
Vanessa Cutts
Martha Paola Barajas-Barbosa
Adam C. Algar
Carl Beierkuhnlein
José María Fernández-Palacios
Dr RICHARD FIELD RICHARD.FIELD@NOTTINGHAM.AC.UK
Professor of Biodiversity Science
Holger Kreft
Manuel J. Steinbauer
Patrick Weigelt
Severin D.H. Irl
Jonathan Davies
Abstract
Aim: Functional traits can help us to elucidate biogeographical and ecological processes driving assemblage structure. We analysed the functional diversity of plant species of different evolutionary origins across an island archipelago, along environmental gradients and across geological age, to assess functional aspects of island biogeographical theory. Location: Canary Islands, Spain. Major taxa studied: Spermatophytes. Time period: Present day. Methods: We collected data for four traits (plant height, leaf length, flower length and fruit length) associated with resource acquisition, competitive ability, reproduction and dispersal ability of 893 endemic, non-endemic native and alien plant species (c.43% of the Canary Island flora) from the literature. Linking these traits to species occurrences and composition across a 500m×500m grid, we calculated functional diversity for endemic, non-endemic native and alien assemblages using multidimensional functional hypervolumes and related the resulting patterns to climatic (humidity) and island biogeographical (geographical isolation, topographic complexity and geological age) gradients. Results: Trait space of endemic and non-endemic native species overlapped considerably, and alien species added novel trait combinations, expanding the overall functional space of the Canary Islands. We found that functional diversity of endemic plant assemblages was highest in geographically isolated and humid grid cells. Functional diversity of non-endemic native assemblages was highest in less isolated and humid grid cells. In contrast, functional diversity of alien assemblages was highest in arid ecosystems. Topographic complexity and geological age had only a subordinate effect on functional diversity across floristic groups. Main conclusions: We found that endemic and non-endemic native island species possess similar traits, whereas alien species tend to expand functional space in ecosystems where they have been introduced. The spatial distribution of the functional diversity of floristic groups is very distinct across environmental gradients, indicating that species assemblages of different evolutionary origins thrive functionally in dissimilar habitats.
Citation
Hanz, D. M., Cutts, V., Barajas-Barbosa, M. P., Algar, A. C., Beierkuhnlein, C., Fernández-Palacios, J. M., …Davies, J. (2022). Climatic and biogeographical drivers of functional diversity in the flora of the Canary Islands. Global Ecology and Biogeography, 31(7), 1313-1331. https://doi.org/10.1111/geb.13507
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 27, 2022 |
Online Publication Date | Apr 11, 2022 |
Publication Date | 2022-07 |
Deposit Date | Apr 17, 2022 |
Publicly Available Date | Mar 29, 2024 |
Journal | Global Ecology and Biogeography |
Print ISSN | 1466-822X |
Electronic ISSN | 1466-8238 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 31 |
Issue | 7 |
Pages | 1313-1331 |
DOI | https://doi.org/10.1111/geb.13507 |
Keywords | Ecology; Ecology, Evolution, Behavior and Systematics; Global and Planetary Change |
Public URL | https://nottingham-repository.worktribe.com/output/7767060 |
Publisher URL | https://onlinelibrary.wiley.com/doi/10.1111/geb.13507 |
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Publisher Licence URL
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