10 research outputs found
Are Socioeconomic Benefits of Restoration Adequately Quantified? A Meta-analysis of Recent Papers (2000â2008) in Restoration Ecology and 12 Other Scientific Journals. Restoration Ecology
Many ecosystems have been transformed, or degraded by human use, and restoration offers an opportunity to recover services and benefits, not to mention intrinsic values. We assessed whether restoration scientists and practitioners use their projects to demonstrate the benefits
restoration can provide in their peer-reviewed publications. We evaluated a sample of the academic literature to determine
whether links are made explicit between ecological restoration, society, and public policy related to natural capital. We analyzed 1,582 peer-reviewed papers dealing
with ecological restoration published between 1 January 2000 and 30 September 2008 in 13 leading scientific journals.
As selection criterion, we considered papers that contained either ârestorationâ or ârehabilitationâ in their title,
abstract, or keywords. Furthermore, as one-third of the papers were published in Restoration Ecology, we used that
journal as a reference for comparison with all the other journals. We readily acknowledge that aquatic ecosystems
are under-represented, and that the largely inaccessible gray literature was ignored. Within these constraints, we found clear evidence that restoration practitioners are failing to signal links between ecological restoration, society, and policy, and are underselling the evidence of benefits
of restoration as a worthwhile investment for society. We discuss this assertion and illustrate it with samples of our findingsâwith regards to (1) the geographical and institutional affiliations of authors; (2) the choice of ecosystems studied, methods employed, monitoring schemes applied,
and the spatial scale of studies; and (3) weak links to payments for ecosystem service setups, agriculture, and ramifications
for public policy.The authors thank the South African Water Research Commission
which provided financial support for this study, under
contract K5/1803, The impact of reestablishing indigenous
plants and restoring the natural landscape on sustainable rural employment and land productivity through payment for environmental services, awarded to ASSET Research (Pretoria)
Effect of selection on the production of day-old ostrich chicks in the Klein Karoo
AgriwetenskappeLandbou-EkonomiePlease help us populate SUNScholar with the post print version of this article. It can be e-mailed to: [email protected]
Effect of selection on the production of day-old ostrich chicks in the Klein Karoo
The main farming system in use for the production of day-old ostrich chicks around Oudtshoorn in the Klein Karoo is the flock breeding system. This system does not present an opportunity for farmers to practise genetic selection. An alternative system, the small-camp system, would allow the farmer to practise genetic selection. However, for the farmer to switch from the flock breeding system to the small-camp system, an investment in fencing material is required. The main aim of this study is to find out if the higher expected productivity and resulting higher income due to genetic selection could compensate for the investment in fencing material. Typical farm models for the study area were developed for this purpose. The results of this study showed that the higher income due to genetic selection compensates for the investment in fencing material
System dynamic modeling to assess economic viability and risk trade-offs for ecological restoration in South Africa.
Can markets assist by providing support for ecological restoration, and if so, under what conditions? The first step in addressing this question is to develop a consistent methodology for economic evaluation of ecological restoration projects. A risk analysis process was followed in which a system dynamics model was constructed for eight diverse case study sites where ecological restoration is currently being pursued. Restoration costs vary across each of these sites, as do the benefits associated with restored ecosystem functioning. The system dynamics model simulates the ecological, hydrological and economic benefits of ecological restoration and informs a portfolio mapping exercise where payoffs are matched against the likelihood of success of a project, as well as a number of other factors (such as project costs and risk measures). This is the first known application that couples ecological restoration with system dynamics and portfolio mapping. The results suggest an approach that is able to move beyond traditional indicators of project success, since the effect of discounting is virtually eliminated. We conclude that systems dynamic modelling with portfolio mapping can guide decisions on when markets for restoration activities may be feasible.WRC, Wf
System dynamic modelling to assess economic viability and risk trade-offs for ecological restoration in South Africa
Please help populate SUNScholar with the full text of SU research output. Also - should you need this item urgently, please send us the details and we will try to get hold of the full text as quick possible. E-mail to [email protected]. Thank you.Journal Articles (subsidised)Ekonomiese En BestuurswetenskappeEkonomi
Considering the links between non-timber forest products and poverty alleviation
The debates around the value and importance of non-timber forest products (NTFPs) are complex and ongoing. The complexity is a result of many factors, including the wide variety of species, products and uses, as well as the variety of constituencies and disciplines each seeing advantage from âco-optingâ the importance of the contribution of NTFPs to their own areas of interest and concern. Conservationists are interested in NTFPs because their combined high value in many settings offers a potential alternative to the destruction of forests by either commercial logging or their widespread conversion to other land uses
System dynamic modelling to assess economic viability and risk trade-offs for ecological restoration in South Africa
Can markets assist by providing support for ecological restoration, and if so, under what conditions? The
first step in addressing this question is to develop a consistent methodology for economic evaluation of
ecological restoration projects. A risk analysis process was followed in which a system dynamics model
was constructed for eight diverse case study sites where ecological restoration is currently being pursued.
Restoration costs vary across each of these sites, as do the benefits associated with restored
ecosystem functioning. The system dynamics model simulates the ecological, hydrological and economic
benefits of ecological restoration and informs a portfolio mapping exercise where payoffs are matched
against the likelihood of success of a project, as well as a number of other factors (such as project costs
and risk measures). This is the first known application that couples ecological restoration with system
dynamics and portfolio mapping. The results suggest an approach that is able to move beyond traditional
indicators of project success, since the effect of discounting is virtually eliminated. We conclude that
systems dynamic modelling with portfolio mapping can guide decisions on when markets for restoration
activities may be feasible.The Water Research Commission (WRC) and Africa's Search for Sound Economic Trajectories (ASSET Research)http://www.elsevier.com/locate/jenvmanhb201