The endemic and near-endemic angiosperms of the Drakensberg Alpine Centre

By C. Carbutt, T. Edwards. 2006

98 citations recorded by the source corpus.

Abstract The Drakensberg Alpine Centre (DAC) of southern Africa supports a speciose number of angiosperms. Its compliment of 2520 native angiosperms is comparable with the native floras of northern hemisphere countries such as Germany or Switzerland, and is almost double that of Great Britain. Levels of angiosperm endemism and near-endemism in the DAC too are high, that are here treated within a conservation framework to draw attention to the local and global significance of its biodiversity. The DAC supports some 334 endemic and 595 near-endemic angiosperms, meaning that almost 37% if its flora is confined to a core region south of the Limpopo River. Strict endemism is c. 13%, slightly lower than the 16% endemism for KwaZulu-Natal, and substantially lower than endemism (c. 69%) in the Cape Floristic Region. Most endemic and near-endemic taxa belong to the Asteraceae, Scrophulariaceae and Iridaceae, which are the largest, fourth largest and seventh largest angiosperm families in the DAC respectively. Helichrysum and Senecio contribute the most endemics and near-endemics. Many of the endemics are rare, and have very specific habitat preferences. Some 42% of the endemic taxa, and 16% of the near-endemic taxa, are Red Data species. Here we add a further 42 endemic taxa (c. 13%) to the Orange List, bringing the total number of endemics that are now either Red or Orange Data listed to 182 (c. 55%); their conservation needs to be prioritised. A strong plea is made for the continued sustainable management and protection of biota in the DAC, and the mitigation of any threats that may lead to their demise.

Subfields: Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation, Plant Science

View Paper: https://www.semanticscholar.org/paper/e38b4a28523148972fbd4389689f4a693a6263d7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ecology, Evolution, Behavior and Systematics

1. H. P. Linder
2. T. R. Bishop
3. Mark P. Robertson
4. B. J. Rensburg
5. C. Parr

In Nature and Landscape Conservation

1. Royal Botanic
2. Harald Schneider
3. T. Pennington
4. H. P. Linder
5. T. R. Bishop
6. Mark P. Robertson
7. B. J. Rensburg
8. C. Parr

In Plant Science

1. H. P. Linder
2. B. J. Rensburg
3. C. Parr

Citations in the corpus

• The evolution of African plant diversity (2014, background): “…and intermontane valleys (Marloth, 1908; Goldblatt, 1978; Linder, 2003); the Drakensberg Alpine Center in the Drakensberg (Hilliard and Burtt, 1987; Carbutt and Edwards, 2006); the Namaqualand semidesert flora (Cowling et al., 1999; Snijman, 2013); and outliers further to the north in the…”
• Coping with the cold: minimum temperatures and thermal tolerances dominate the ecology of mountain ants (2017, background): “This area is part of the grassland biome of southern Africa (Cowling et al., 1997) and is recognised as a centre of endemism (Carbutt & Edwards, 2006; Kuhlmann, 2009).”