Show simple item record

dc.contributor.authorPayet, K.
dc.contributor.authorRouget, M.
dc.contributor.authorEsler, K.J.
dc.contributor.authorReyers, B.
dc.contributor.authorRebelo, T.
dc.contributor.authorThompson, M.W.
dc.contributor.authorVlok, J.
dc.contributor.authorSmith, T.
dc.date.accessioned2014-01-28T12:26:26Z
dc.date.available2014-01-28T12:26:26Z
dc.date.issued2013
dc.identifier.citationPayet, K., Rouget, M., Esler, K.J., Reyers, B, Rebelo, T., Thompson, M.W., Vlok, J., Smith, T. (2013). The effect of land cover and ecosystem mapping on ecosystem risk assessment in the Little Karoo, South Africa. Conservation Biology, 27(3), 531-541.en
dc.identifier.urihttp://hdl.handle.net/123456789/1348
dc.description.abstractExtinction-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 <3% to 25% of the Little Karoo was classified as threatened, depending on the land-cover data set and ecosystem classification applied. The full suite of threatened ecosystems on a fine-scale map was never completely represented within the spatial boundaries of a coarse-scale map of threatened ecosystems. Our assessments highlight the importance of land-degradation mapping for the listing of threatened ecosystems. On the basis of our results, we recommend that when budgets are constrained priority be given to generating more-detailed land-cover data sets rather than more-detailed ecosystem classifications for the assessment of threatened ecosystems.en
dc.format.extent943932 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.subjectConservation Planningen
dc.subjectHabitat Lossen
dc.subjectLand Degradationen
dc.subjectRed Listsen
dc.subjectSpatial Scaleen
dc.subjectThreat Statusen
dc.subjectThreatened Ecosystemen
dc.subjectVegetation Mapen
dc.titleThe effect of land cover and ecosystem mapping on ecosystem risk assessment in the Little Karoo, South Africaen
dc.typeJournalArticlesen
dc.cibjournalConservation Biologyen
dc.cibprojectEcosystem services and alien invasionsen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record