Effect of land cover and ecosystem mapping on ecosystem-risk assessment in the Little Karoo, South Africa

Autor: M. W. Thompson, Belinda Reyers, Karine Payet, Mathieu Rouget, Jan Vlok, Tony Rebelo, Karen J. Esler
Rok vydání: 2012
Předmět:
Zdroj: Conservation biology : the journal of the Society for Conservation Biology. 27(3)
ISSN: 1523-1739
Popis: Extinction-risk assessments aim to identify biological diversity features threatened with extinction. Although largely developed at the species level, these assessments have recently been applied at the ecosystem level. In South Africa, national legislation provides for the listing and protection of threatened ecosystems. We assessed how land-cover mapping and the detail of ecosystem classification affected the results of risk assessments that were based on extent of habitat loss. We tested 3 ecosystem classifications and 4 land-cover data sets of the Little Karoo region, South Africa. Degraded land (in particular, overgrazed areas) was successfully mapped in just one of the land-cover data sets. From
Databáze: OpenAIRE