The Economics of Managing Infectious Wildlife Disease
用两状态线性控制模型分析当患病动物无法选择性捕杀时,如何通过非选择性捕猎和补充喂养来最优管理野生动物种群中的疾病,并以密歇根白尾鹿的牛结核病为例。
Abstract We use a two‐state linear control model to examine the socially optimal management of disease in a valuable wildlife population when diseased animals cannot be harvested selectively. The two control variables are nonselective harvests and supplemental feeding of wildlife, where feeding increases both in situ productivity and disease prevalence. We derive a double singular solution which depends on the initial state and does not require bang‐bang controls. The case of bovine tuberculosis among Michigan white‐tailed deer is analyzed. In the base model, the disease is optimally maintained at low levels, with intermittent investments (via feeding) in deer productivity.