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

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.

这是一项关于动物觅食行为的理论研究，旨在研究猎物的斑块分布对觅食的影响。 当猎物在不同密度下发生变化时，将使用近乎最优的觅食策略来确定定位猎物的速率。 当最佳觅食者利用斑块时，猎物分布的变化，即通过重新访问斑块找到猎物的速率，也将被确定。 将找到最优和近乎最优的策略，并计算它们在特定版本的 Oaten 最优觅食一般随机模型中实现的寻找猎物的速率。 功能响应的形式决定了 Lotka-Volterra 捕食者-被捕食者模型的某个版本是否稳定。 斑块开发的效果对于确定维持饲养区域和划分资源的价值非常重要。