dc.contributor.author |
De Lange, Willem J
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|
dc.contributor.author |
Veldtman, R
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|
dc.contributor.author |
Allsopp, MH
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|
dc.date.accessioned |
2013-06-12T12:42:46Z |
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dc.date.available |
2013-06-12T12:42:46Z |
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dc.date.issued |
2013-08 |
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dc.identifier.citation |
De Lange, W.J, Veldtman, R and Allsopp, M.H. 2013. Valuation of pollinator forage services provided by Eucalyptus Cladocalyx. Journal of Environmental Management, vol. 125, pp 12-18 |
en_US |
dc.identifier.issn |
0301-4797 |
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dc.identifier.uri |
http://www.sciencedirect.com/science/article/pii/S0301479713001990
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|
dc.identifier.uri |
http://hdl.handle.net/10204/6772
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|
dc.description |
Copyright: 2013 Elsevier. This is the Pre/Post print version of the work. The definitive version is published in Journal of Environmental Management, vol. 125, pp 12-18 |
en_US |
dc.description.abstract |
We assess the monetary value of forage provisioning services for honeybees as provided by an alien tree species in the Western Cape province of South Africa. Although Eucalyptus cladocalyx is not an officially declared invader, it is cleared on a regular basis along with other invasive Eucalyptus species such as E. camaldulensis, and E. conferruminata (which have been prioritised for eradication in South Africa). We present some of the trade-offs associated with the clearing of E. cladocalyx by means of a practical example that illustrates a situation where the benefits of the species to certain stakeholders could support the containment of the species in demarcated areas, while allowing clearing outside such areas. Given the absence of market prices for such forage provisioning services, the replacement cost is used to present the value of the loss in forage as provided by E. cladocalyx if the alien tree species is cleared along with invasive alien tree species. Two replacement scenarios formed the basis for our calculations. The first scenario was an artificial diet as replacement for the forage provisioning service, which yielded a direct cost estimate of US$7.5m per year. The second was based on a Fynbos cultivation/restoration initiative aimed at substituting the forage provisioning service of E. cladocalyx, which yielded a direct cost of US$20.2m per year. These figures provide estimates of the potential additional cost burden on the beekeeping industry if E. cladocalyx is completely eradicated from the Western Cape. The cost estimates should be balanced against the negative impacts of E. cladocalyx on ecosystem services in order to make an informed decision with regard to appropriate management strategies for this species. The findings therefore serve as useful inputs to balance trade-offs for alien species that are considered as beneficial to some, but harmful to other. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.relation.ispartofseries |
Workflow;10940 |
|
dc.subject |
Alien trees |
en_US |
dc.subject |
Forage provisioning |
en_US |
dc.subject |
Valuation |
en_US |
dc.subject |
Honeybees |
en_US |
dc.subject |
Eucalyptus cladocalyx |
en_US |
dc.subject |
Eucalyptus camaldulensis |
en_US |
dc.subject |
Eucalyptus conferruminata |
en_US |
dc.subject |
Eucalyptus cladocalyx |
en_US |
dc.title |
Valuation of pollinator forage services provided by Eucalyptus Cladocalyx |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
De Lange, W. J., Veldtman, R., & Allsopp, M. (2013). Valuation of pollinator forage services provided by Eucalyptus Cladocalyx. http://hdl.handle.net/10204/6772 |
en_ZA |
dc.identifier.chicagocitation |
De Lange, Willem J, R Veldtman, and MH Allsopp "Valuation of pollinator forage services provided by Eucalyptus Cladocalyx." (2013) http://hdl.handle.net/10204/6772 |
en_ZA |
dc.identifier.vancouvercitation |
De Lange WJ, Veldtman R, Allsopp M. Valuation of pollinator forage services provided by Eucalyptus Cladocalyx. 2013; http://hdl.handle.net/10204/6772. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - De Lange, Willem J
AU - Veldtman, R
AU - Allsopp, MH
AB - We assess the monetary value of forage provisioning services for honeybees as provided by an alien tree species in the Western Cape province of South Africa. Although Eucalyptus cladocalyx is not an officially declared invader, it is cleared on a regular basis along with other invasive Eucalyptus species such as E. camaldulensis, and E. conferruminata (which have been prioritised for eradication in South Africa). We present some of the trade-offs associated with the clearing of E. cladocalyx by means of a practical example that illustrates a situation where the benefits of the species to certain stakeholders could support the containment of the species in demarcated areas, while allowing clearing outside such areas. Given the absence of market prices for such forage provisioning services, the replacement cost is used to present the value of the loss in forage as provided by E. cladocalyx if the alien tree species is cleared along with invasive alien tree species. Two replacement scenarios formed the basis for our calculations. The first scenario was an artificial diet as replacement for the forage provisioning service, which yielded a direct cost estimate of US$7.5m per year. The second was based on a Fynbos cultivation/restoration initiative aimed at substituting the forage provisioning service of E. cladocalyx, which yielded a direct cost of US$20.2m per year. These figures provide estimates of the potential additional cost burden on the beekeeping industry if E. cladocalyx is completely eradicated from the Western Cape. The cost estimates should be balanced against the negative impacts of E. cladocalyx on ecosystem services in order to make an informed decision with regard to appropriate management strategies for this species. The findings therefore serve as useful inputs to balance trade-offs for alien species that are considered as beneficial to some, but harmful to other.
DA - 2013-08
DB - ResearchSpace
DP - CSIR
KW - Alien trees
KW - Forage provisioning
KW - Valuation
KW - Honeybees
KW - Eucalyptus cladocalyx
KW - Eucalyptus camaldulensis
KW - Eucalyptus conferruminata
KW - Eucalyptus cladocalyx
LK - https://researchspace.csir.co.za
PY - 2013
SM - 0301-4797
T1 - Valuation of pollinator forage services provided by Eucalyptus Cladocalyx
TI - Valuation of pollinator forage services provided by Eucalyptus Cladocalyx
UR - http://hdl.handle.net/10204/6772
ER -
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en_ZA |