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Biodiversity risk assessment of South Africa's municipalities

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dc.contributor.advisor Reyers B, Dr en
dc.contributor.author Gerber L en
dc.date.accessioned 2016-09-22T08:35:28Z
dc.date.available 2016-09-22T08:35:28Z
dc.date.submitted 2005 en
dc.identifier.uri http://hdl.handle.net/20.500.11892/32275
dc.description.abstract South Africa is one of the most biodiverse countries in the world and even with conservation initiatives in place continues to face biodiversity loss. There is a need to prioritise areas for conservation as resources for conservation purposes are limited in South Africa. From prioritisation methods reviewed it was found that prioritisation indices normally use one or a combination of variables that measure stock; and/or variables that measure threat. Rarely did priority indices include all measures of biodiversity stock, pressure, and conservation effort. One example where all three types of variables were included was in the National Biodiversity Risk Assessment Index (NABRAI) that measured biodiversity risk per country. The NABRAI was tested at a municipal scale to see whether it could be implemented to measure biodiversity risk of the municipalities of South Africa. It was found to be problematic and not as useful at the municipal scale and was amended to form the Municipal Biodiversity Risk Assessment Index (MuBRAI). Variables identified were grouped as pressure, stock and response measures and were reviewed and analysed for inclusion in the MuBRAI using non-parametric multivariate statistics. Results indicate that the City of Johannesburg Metro faced the largest pressures; Mtubatuba in KwaZulu-Natal contained the highest biodiversity stock and Witzenberg municipality in the Western Cape the most conservation responses of all 262 municipalities surveyed. Umdoni municipality in KwaZulu-Natal was identified as having the highest biodiversity risk in the country. The index and its components were assessed in order to better understand the drivers of municipal biodiversity risk. This index together with other prioritisation methods could be useful to decision makers in prioritising resources for conservation. en
dc.language English en
dc.subject Nature conservation en
dc.title Biodiversity risk assessment of South Africa's municipalities en
dc.type Masters degree en
dc.description.degree MSc en


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