Plant functional diversity, species diversity and climate in arid and semi-arid southern Africa
This paper analyses data on growth form (functional) diversity, species richness and climate
from nine Nama-Karoo/Desert sites (predominantly summer rain) and 10 Succulent Karoo
sites (predominantly winter rain) along comparable gradients of total rainfall in arid and semi-
arid southern Africa. Sites from the latter region were richer in total species and succulent
species, but had lower growth form diversity. Contrary to the predictions of niche theory, the
more heterogeneous rocky habitats did not have significantly more species or higher growth …
from nine Nama-Karoo/Desert sites (predominantly summer rain) and 10 Succulent Karoo
sites (predominantly winter rain) along comparable gradients of total rainfall in arid and semi-
arid southern Africa. Sites from the latter region were richer in total species and succulent
species, but had lower growth form diversity. Contrary to the predictions of niche theory, the
more heterogeneous rocky habitats did not have significantly more species or higher growth …
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