Arid
DOI10.1016/j.sajb.2005.06.001
The endemic and near-endemic angiosperms of the Drakensberg Alpine Centre
Carbutt, C.; Edwards, T. J.
通讯作者Edwards, T. J.
来源期刊SOUTH AFRICAN JOURNAL OF BOTANY
ISSN0254-6299
出版年2006
卷号72期号:1页码:105-132
英文摘要

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, arid substantially lower than endemism (c. 69%) in the Cape Floristic Region. Most endemic and near-endemic taxa belong to the Asteraceae, Scrophullariaceae 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. (c) 2005 SAAB. Published by Elsevier B.V. All rights reserved.


英文关键词angiosperms Drakensberg Alpine Centre endemism flora near-endemisin orange list plant conservation radiation
类型Article
语种英语
国家South Africa
收录类别SCI-E
WOS记录号WOS:000240298600011
WOS关键词SOUTHERN AFRICAN PLANTS ; RED DATA LIST ; ADDITIONS ; FLORA
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/153082
作者单位(1)Univ KwaZulu Natal Pietermaritzburg, Sch Biol & Conservat Sci, ZA-3209 Scottsville, South Africa
推荐引用方式
GB/T 7714
Carbutt, C.,Edwards, T. J.. The endemic and near-endemic angiosperms of the Drakensberg Alpine Centre[J],2006,72(1):105-132.
APA Carbutt, C.,&Edwards, T. J..(2006).The endemic and near-endemic angiosperms of the Drakensberg Alpine Centre.SOUTH AFRICAN JOURNAL OF BOTANY,72(1),105-132.
MLA Carbutt, C.,et al."The endemic and near-endemic angiosperms of the Drakensberg Alpine Centre".SOUTH AFRICAN JOURNAL OF BOTANY 72.1(2006):105-132.
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