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英文文献：Wildlife Conservation Payments to Address Habitat Fragmentation and Disease Risks-解决栖息地破碎和疾病风险的野生动物保护款项
英文文献作者：Horan, Richard D.,Shogren, Jason F.,Gramig, Benjamin M.
英文文献摘要：
We build a stylized model to gain insights into the application of conservation payments to protect endangered species in the face of wildlife-livestock disease risks and habitat fragmentation. Greater connectivity of habitat creates an endogenous trade-off. More connectedness ups the chance that populations of endangered species will grow more rapidly; however, greater connectivity also increases the likelihood that diseases will spread more quickly. We analyze subsidies for both habitat connectedness and livestock vaccination. We find the cost-effective policy is to initially subsidize habitat connectivity rather than vaccinations; this increases habitat contiguousness, which eventually also increases disease risks. Once habitat is sufficiently connected, disease risks increase to such a degree to make a vaccination subsidy worthwhile. Highly connected habitat requires nearly all the government budget be devoted to vaccination subsidies. The result of the conservation payments is significantly increased species abundance, for a wide range of initial levels of habitat connectedness.
我们建立了一个程式化的模型，以深入了解在面临野生动物疾病风险和栖息地破碎化的情况下，保护濒危物种的保护费用的应用。栖息地的更大的连通性创造了一种内生的权衡。人与人之间的联系越紧密，濒危物种的数量增长越快;然而，更大的连接也增加了疾病更快传播的可能性。我们分析了对栖息地关联性和牲畜疫苗接种的补贴。我们发现，成本效益高的政策最初是补贴栖息地的连接，而不是接种疫苗;这增加了栖息地的接触，最终也增加了疾病的风险。一旦生境之间有了充分的联系，疾病风险就会增加到这种程度，从而使疫苗接种补贴有价值。高度联系的生境要求几乎所有政府预算都用于接种疫苗补贴。保护费用的结果是大大增加了物种的丰富度，在一个广泛的初始水平的栖息地连接。
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