Population Consequences of Foraging Behavior

觅食行为对种群的影响

• 批准号: 8817954
• 负责人: Richard Green
• 金额: $ 5.51万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-03-01 至 1990-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8817954&HistoricalAwards=false
• 关键词: Population; Consequences; Foraging; Behavior; Population; Consequences; Foraging; Behavior

This is a theoretical study of animal foraging behavior that would examine the effect of patchy distribution of prey on foraging. An almost optimal foraging strategy will be used to determine the rate of locating prey as it changes under different prey densities. The changes in prey distribution when patches are exploited by an optimal forager, the rate of finding prey by revisiting patches, will also be determined. The optimal and almost-optimal strategies will be found and the rates of finding prey that they would achieve for a particular version of Oaten's general stochastic model of optimal foraging will be calculated. The form of the functional response determines whether a certain version of the Lotka-Volterra predator-prey model is stable. The effect of patch exploitation is important in determining the value of maintaining feeding territories and of partitioning resources.

这是对动物觅食行为的理论研究，该研究将检查猎物的斑驳分布对觅食的影响。 几乎最佳的觅食策略将用于确定猎物的定位率，因为它在不同的猎物密度下变化。 当最佳觅食者利用斑块时，猎物分布的变化（通过重新访问斑块查找猎物的速率）也将得到确定。 将发现最佳且几乎最佳的策略，并将计算特定版本的Oaten一般随机模型的最佳最佳觅食模型的猎物的速率。 功能响应的形式决定了Lotka-Volterra Predator-Prey模型的某个版本是否稳定。 补丁剥削的影响对于确定维护饲养领土和分区资源的价值很重要。