• Publications
  • Influence
Plant Diversity of the Cape Region of Southern Africa
TLDR
Species richness of the Cape flora is hypothesized to be the result of geographic and parapatric radiation in an area with a mosaic of different habitats due to local soil, climate, and altitudinal differences that combine to produce steep ecological gradients.
Preserving the evolutionary potential of floras in biodiversity hotspots
TLDR
This work shows taxon richness to be decoupled from PD, using a biome-wide phylogenetic analysis of the flora of an undisputed biodiversity hotspot—the Cape of South Africa and demonstrates that PD protection is the best strategy for preserving feature diversity in the Cape.
Iridaceae ‘Out of Australasia’? Phylogeny, Biogeography, and Divergence Time Based on Plastid DNA Sequences
TLDR
Application of molecular clock techniques to the phylogeny indicates that the Iridaceae differentiated in the late Cretaceous and diverged from the next most closely related family, Doryanthaceae circa 82 mya, thus during the Campanian.
Cultivation of Trypanosoma brucei sspp. in semi-defined and defined media.
TLDR
The semi-defined medium contains an acid hydrolysate of casein : in the empirically devised defined medium the casein requirement has been circumvented by inclusion of additional vitamins and amino acids, which are very hypertonic.
A REVISED GENERIC SYNOPSIS OF HYACINTHACEAE IN SUB-SAHARAN AFRICA, BASED ON MOLECULAR EVIDENCE, INCLUDING NEW COMBINATIONS AND THE NEW TRIBE PSEUDOPROSPEREAE
TLDR
A revised generic synopsis of sub-Saharan Hyacinthaceae is presented, based on a molecular phylogenetic analysis of the family, with new combinations reflecting the generic circumscriptions made for most African and all Indian and Madagascan species.
Causes of plant diversification in the Cape biodiversity hotspot of South Africa.
TLDR
It is concluded that the combination of complex environmental conditions together with relative climatic stability promoted high speciation and/or low extinction rates as the most likely scenario leading to present-day patterns of hyperdiversity in the Cape.
...
...