J.F. Colville
Plant richness, turnover and evolutionary diversity track gradients of stability and ecological opportunity in a megadiversity centre
Colville, J.F.; Beale, C.M.; Forest, F.; Altwegg, R.; Huntley, B.; Cowling, R.M.
Authors
C.M. Beale
F. Forest
R. Altwegg
Professor Brian Huntley brian.huntley@durham.ac.uk
Emeritus Staff
R.M. Cowling
Abstract
What explains global patterns of diversity—environmental history or ecology? Most studies have focused on latitudinal gradients—the decline of diversity from the tropics to the poles. A problem with this is that it conflates predictions of historical and ecological hypotheses: The productive tropics have also experienced high Cenozoic biome stability. Longitudinal diversity gradients can overcome this constraint. We use a longitudinal diversity gradient in the megadiverse Cape Floristic Region to model species and evolutionary diversity in terms of Pleistocene climate stability and ecological heterogeneity. We find that biome stability is the strongest predictor of diversity measures, and argue that stability, in conjunction with measures of ecological opportunity—other than productivity—may provide a general explanation for global diversity patterns
Citation
Colville, J., Beale, C., Forest, F., Altwegg, R., Huntley, B., & Cowling, R. (2020). Plant richness, turnover and evolutionary diversity track gradients of stability and ecological opportunity in a megadiversity centre. Proceedings of the National Academy of Sciences, 117(33), 20027-20037. https://doi.org/10.1073/pnas.1915646117
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 7, 2020 |
Online Publication Date | Aug 5, 2020 |
Publication Date | Aug 18, 2020 |
Deposit Date | Jul 21, 2020 |
Publicly Available Date | Feb 5, 2021 |
Journal | Proceedings of the National Academy of Sciences |
Print ISSN | 0027-8424 |
Electronic ISSN | 1091-6490 |
Publisher | National Academy of Sciences |
Peer Reviewed | Peer Reviewed |
Volume | 117 |
Issue | 33 |
Pages | 20027-20037 |
DOI | https://doi.org/10.1073/pnas.1915646117 |
Public URL | https://durham-repository.worktribe.com/output/1266094 |
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