| Autor: |
M. W. Thompson, A. S. van Jaarsveld, Belinda Reyers, Dean H. K. Fairbanks |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Diversity and Distributions. 7:79-95 |
| ISSN: |
1366-9516 |
| DOI: |
10.1046/j.1472-4642.2001.00098.x |
| Popis: |
South Africa has an important respons- ibility to global biodiversity conservation, but a largely inadequate conservation area network for addressing this responsibility. This study employs a coarse-filter approach based on 68 potential vegetation units to identify areas that are largely transformed, degraded or impacted upon by road- effects. The assessment highlights broad vegeta- tion types that face high biodiversity losses currently or in the near future due to human impacts. Most vegetation types contain large tracts of natural vegetation, with little degrada- tion, transformation or impacts from road net- works. Regions in the grasslands, fynbos and forest biomes are worst affected. Very few of the vegetation types are adequately protected accord- ing to the IUCN's 10% protected area conserva- tion target, with the fynbos and savanna biomes containing a few vegetation types that do achieve this arbitrary goal. This investigation identifies areas where limited conservation resources should be concentrated by identifying vegetation types with high levels of anthropogenic land use threats and associated current and potential biodiversity loss. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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