PRF: Ecosystem Variation and Pastoral Energy Extraction Patterns

东非牧民利用牲畜在各种 不同的环境，都具有强烈的季节性。 牧民通过时间调节来适应食物供应的季节性 利用不同种类的牲畜， 通过调整人口数量， 资源 本研究基于以下假设进行预测：（1） 畜牧食品采购模式旨在实现 环境变化压力下的能量稳态 并且（2）能量稳态的目标需要不同的 在不同的生态系统中。 这些建议将是 通过比较三组人的食物采购模式， 肯尼亚北方的伦迪勒和图尔卡纳， 埃塞俄比亚南部。 伦迪勒在干旱地区放牧骆驼， 博拉纳人在梅西奇山区利用牛群，而图尔卡纳人（在 中间环境）利用五种牲畜。 Kathleen A.高尔文将使用现场数据和文献 评估这些人类群体在 在季节性的基础上保持能源平衡， 粮食供应的波动。 模拟模型将用于 比较和整合这些牧区的能量学数据， 人口数量。 该项目将阐明 环境、人类战略和生态系统能量学 系统生态学和生态人类学框架。 的 一年博士后奖学金的主办单位 活动是科罗拉多州立大学。

East African pastoralists exploit livestock in a variety of different environments, all characterized by drastic seasonality. Pastoralists adjust to seasonality in food supply by temporally exploiting different species of livestock, by moving livestock and people, and by adjusting human population to available resources. This study is predicted on the hypotheses that (1) patterns of pastoral food procurement are aimed at achieving energy homeostasis under pressure of environmental variability and that (2) this goal of energy homeostasis requires different strategies in different ecosystems. These propositions will be tested by comparing food procurement patterns among three groups, the Rendille and Turkana of northern Kenya and the Borana of southern Ethiopia. The Rendille herd camels in a dry area, the Borana exploit cattle in mesic mountains, while the Turkana (in an intermediate environment) exploit five species of livestock. Dr. Kathleen A. Galvin will use field data and literature sources to assess the success of these human groups in maintaining energy balances on a seasonal basis despite fluctuations in food supply. A simulation model will be used to compare and integrate energetics data from these pastoral populations. The project will elucidate interactions between environment, human strategies and ecosystem energetics within the framework of systems ecology and ecological anthropology. The host institution for the one-year postdoctoral fellowship activity is Colorado State University.