- Title
- Estimating the potential role of commercial over-harvesting in resource viability: A case study of five useful tree species in South Africa
- Creator
- Shackleton, Charlie M, Guthrie, G, Main, R
- Subject
- To be catalogued
- Date
- 2005
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/181324
- Identifier
- vital:43719
- Identifier
- xlink:href="https://doi.org/10.1002/ldr.652"
- Description
- There is a growing commercialization of non-timber forest products (NTFPs) as a means of livelihood by rural communities throughout the developing world. This often occurs in the absence of any clear understanding of or guidelines regarding sustainable yields and ecological impacts, which may undermine the success of NTFP enterprises, especially from arid regions. This paper reports on the use of size class profiles and three quantitative indices to examine population profiles of five potentially useful tree species used as NTFPs in the semiarid lowveld of South Africa. We also contrast the population densities of the five tree species in 2003 with data from 1992. Low stem densities and population profiles indicated that three of the five species would preclude the establishment of NTFP enterprises based on their products. The other two species seem to have sufficient densities for some harvesting to take place, within an adaptive management framework. However, the longitudinal data indicated that the density of both these species had significantly declined over an eleven-year period, highlighting the need for appropriate management institutions. Additionally, the proportion of mature stems cut, and the degree of cutting per stem, had increased for all five species over the eleven years. The three quantitative indices of population stability were not correlated with one another, and hence provided a useful suite of measures sensitive to different aspects of size class profiles and their interpretation.
- Format
- computer, online resource, application/pdf, 1 online resource (14 pages), pdf
- Publisher
- Wiley Library Online
- Language
- English
- Relation
- Land Degradation and Development, Shackleton, C.M., Guthrie, G. and Main, R., 2005. Estimating the potential role of commercial over‐harvesting in resource viability: a case study of five useful tree species in South Africa. Land Degradation and Development, 16(3), pp.273-286, Land Degradation and Development volume 16 number 3 p. 273 2005 1099-145X
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Wiley Library Online Terms of Use Statement (https://onlinelibrary.wiley.com/terms-and-conditions)
- Rights
- Closed Access
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Collections
RU Department of Environmental Science
Shackleton, Charles Michael (Distinguished Prof)
SDG 11. Sustainable Cities and Communities
SDG 15. Life On Land
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