Rangeland Ecology & Management

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Impacts of traditional land uses on biodiversity outside conservation areas : effects on dung beetle communities of Vaalbos National Park
Author
Simelane, T S
Publisher
African Journal of Ecology
Publication Year
2010
Body

Abstract Grazing is one of the key processes in terrestrial ecosystems and this can be provided by both indigenous and domestic ungulates. However, a question remains whether or not traditional forms of land use such as the grazing of domestic animals support the maintenance of biodiversity. If it does not, then the second question becomes to what extent does grazing of domestic animals alter the systems and processes that support biodiversity? This study demonstrates that in attempting to answer this question, small organisms like dung beetles are ideal indicators that can be used to express significant differences between conserved (indigenous) and non-conserved (domestic) land. As a general trend, studies that investigated these differences displayed differences through analysis of the diversity indices. This method has in most cases demonstrated a lack of contrast between conserved and non-conserved land. In the existence of such uncertainty this study has demonstrated that in such cases, where the analysis of biodiversity indices fail to demonstrate significant differences a closer examination of actual species such as guilds and functional groups could confirm significant differences between conserved and non-conserved land. These apparently conflicting findings reflect the need to consider the actual elements of biodiversity (e.g. species) when assessing conservation issues rather than just the statistical measures of biodiversity.

Language
English
Resource Type
Text
Document Type
Journal Issue/Article
Journal Volume
48
Journal Number
2
Journal Pages
490-501
Journal Name
African Journal of Ecology
Keywords
biodiversity
dung beetles
grazing
land use
indicator species
livestock
insects
management
conservation
Vaalbos National Park
South Africa