Climate and woody plant diversity in southern Africa: relationships at species, genus and family levels

Climate and woody plant diversity in southern Africa: relationships at species, genus and family... Woody plant richness across southern Africa was analysed and related to climate–based water–energy dynamics. The analyses, which were based on an equal–area grid system, were undertaken at the genus and family levels and compared with results previously obtained at the species level. In all cases– climate accounts for most of the variation in richness (74–79%,). with richness being a linear function of liquid water and a parabolic function of energy. There is some variation in the particulars of climate's relationship to richness between the three taxonomic levels considered. But, the overall similarity of the outcomes at all three taxonomic levels supports the view that independent and predictable geographic variation in water‐energy dynamics exerts a first‐order control on the realised distributional ranges, and thus richness, of surviving and evolving taxa. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ecography Wiley

Climate and woody plant diversity in southern Africa: relationships at species, genus and family levels

Ecography, Volume 21 (5) – Oct 1, 1998

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Publisher
Wiley
Copyright
Copyright © 1998 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0906-7590
eISSN
1600-0587
DOI
10.1111/j.1600-0587.1998.tb00441.x
Publisher site
See Article on Publisher Site

Abstract

Woody plant richness across southern Africa was analysed and related to climate–based water–energy dynamics. The analyses, which were based on an equal–area grid system, were undertaken at the genus and family levels and compared with results previously obtained at the species level. In all cases– climate accounts for most of the variation in richness (74–79%,). with richness being a linear function of liquid water and a parabolic function of energy. There is some variation in the particulars of climate's relationship to richness between the three taxonomic levels considered. But, the overall similarity of the outcomes at all three taxonomic levels supports the view that independent and predictable geographic variation in water‐energy dynamics exerts a first‐order control on the realised distributional ranges, and thus richness, of surviving and evolving taxa.

Journal

EcographyWiley

Published: Oct 1, 1998

References

  • Water‐energy dynamics, climate, and prediction of woody plant species richness: an interim general model
    O'Brien, O'Brien

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