The economic impact of the invasion of Acacia saligna in Israel
2011
Lehrer, David | Becker, Nir | Bar (Kutiel), Pua
This paper illustrates the use of alternative, non-market valuation methods to estimate the economic value of ecological damage caused by the invasive plant Acacia saligna. We discuss the motivation to perform an economic valuation for bio-invasion in general and then examine the costs and benefits of conservation management programmes that reduce the risk of A. saligna invasion at the Nizzanim Long-Term Ecosystem Research (LTER) nature reserve in Israel. The study found that the annual mean willingness to pay (WTP) for containment or eradication of A. saligna was US$8.41 and US$8.83, respectively. The value placed on conserving the nature reserve was then compared to the cost of containment or eradication of the species, enabling a standard economic benefit–cost analysis. The result of this analysis showed that, using the most conservative method of valuation of the nature reserve, eradication of A. saligna gave a net benefit.
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