Dissertation Research: Linking Individual Behavior to Population Processes at the Landscape Level

论文研究：在景观层面将个体行为与人口过程联系起来

• 批准号: 0104998
• 负责人: David Carr
• 金额: $ 0.99万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-15 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0104998&HistoricalAwards=false
• 关键词: Dissertation; Research; Linking; Individual; Behavior

Landscapes, both natural and human-altered, are a mosaic of habitat types. The success of an individual in finding high quality habitat within this mosaic will affect both its survival and the dynamics of whole populations. This investigation examines the interaction between individual behavior and population dynamics across a landscape by studying the eastern painted turtle. The researchers ask how pond quality, size, and location and the types of intervening habitat influence the movement of turtles between ponds. Measuring growth rates and reproductive output will assess the impact of movement on individuals. The effects of these movements on population processes (birth, death, immigration, and emigration rates) for each pond and across the landscape will then be determined. One of the consequences of current land use practices is an increase in the fragmentation of habitat. Habitat areas suitable for supporting wildlife are becoming smaller and more distant from each other. Information on how species react to and cope with small, isolated habitats embedded in unfavorable landscapes is needed in order to conduct proper management. This research is one of the most detailed examinations into individual behavior at the landscape level yet to be conducted. It will provide concrete evidence for the importance of integrating behavior and population dynamics.

景观，无论是自然的还是人为改变的，都是栖息地类型的马赛克。一个个体在这一镶嵌体中找到高质量栖息地的成功将影响其生存和整个种群的动态。本研究以东方彩龟为研究对象，探讨个体行为与种群动态之间的相互作用。研究人员询问池塘的质量，大小和位置以及干预栖息地的类型如何影响海龟在池塘之间的运动。测量生长率和生殖产出将评估人口流动对个人的影响。 然后将确定这些运动对每个池塘和整个景观的人口过程（出生，死亡，移民和移民率）的影响。目前土地使用做法的后果之一是生境的破碎化加剧。适合支持野生动物的栖息地正在变得越来越小，彼此之间的距离也越来越远。为了进行适当的管理，需要有关物种如何应对和应对嵌入在不利景观中的小型孤立栖息地的信息。这项研究是迄今为止在景观层面上对个体行为进行的最详细的研究之一。它将为整合行为和种群动态的重要性提供具体的证据。