Predicting the economic impact of an invasive species on an ecosystem service
Predicting the economic impact of an invasive species on an ecosystem service
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DOI：
10.1890/06-1632.1
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发表时间：
2007-09-01
影响因子：
5
通讯作者：
De Barro, Paul J.
中科院分区：
文献类型：
--
作者：
Cook, David C.;Thomas, Matthew B.;De Barro, Paul J.
量化外来入侵物种对生态系统服务的影响是制定有效的入侵物种管理做法和政策的重要一步。在这里，我们开发了一个随机的生物经济模型，使入侵害虫的经济影响，以估计其到来之前，相对较差的生态和经济参数的基础上。我们开发了一个假设的入侵瓦螨（瓦螨destructor）到澳大利亚和负面的流动影响，它会对授粉减少蜜蜂种群，导致损失的授粉服务，降低作物产量，并增加生产成本的模型。如果在未来30年内继续防止螨进入该国，我们估计每年可避免的经济成本为1640万至3880万美元（2130万至5050万澳元）。我们建议，澳大利亚目前的入侵应对资金安排，其中不承认这些避免的损害，需要修改。
Quantifying the impact of alien invasive species on ecosystem services is an essential step in developing effective practices and policy for invasive species management. Here we develop a stochastic bioeconomic model that enables the economic impact of an invasive pest to be estimated before its arrival, based on relatively poorly specified ecological and economic parameters. We developed the model by using a hypothetical invasion of the varroa bee mite (Varroa destructor) into Australia and the negative flow-on effects that it would have on pollination by reducing honey bee populations, giving rise to a loss of pollination services, reduced crop yields, and additional production costs. If the mite were to continue to be prevented from entering the country over the next 30 years, we estimate that the economic costs avoided would be US$16.4-38.8 million (Aus$21.3-50.5 million) per year. We suggest that current invasion response funding arrangements in Australia, which do not acknowledge these avoided damages, require amendment.