Dispersal as a Mechanistic Basis for Landscape Ecology: The Role of Scale and Heterogeneity

分散作为景观生态学的机制基础：规模和异质性的作用

• 批准号: 9707785
• 负责人: Peter Turchin
• 金额: $ 12万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-15 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9707785&HistoricalAwards=false
• 关键词: Dispersal; Mechanistic; Basis; Landscape; Ecology

ABSTRACT 97-07785 Turchin Dispersal as a mechanistic basis for landscape ecology: The role of scale and heterogeneity In recent years it has become clear that understanding spatial dynamics of populations, including the effects of habitat fragmentation, is critical for developing better methods of managing natural resources. Landscape ecology has developed approaches for describing environmental patterns in space, while population ecology has a strong tradition of research on mechanisms that underlie these patterns. This project will bridge these two directions in ecology, using a simple organism in a simple environment. The study organism, a terrestrial isopod ("pillbug"), has a simple biology, and its environment, the Negev Desert of Israel, provides a simplified landscape with a clear limiting factor, water. This research will focus on dispersal as the most important mechanism explaining isopod spatial distribution in relation to the distribution of resources. Studying this system will yield general insights into how spatial population dynamics work, and will eventually lead to better understanding of more complex ecological systems.

摘要 97-07785 Turchin 扩散作为景观生态学的机制基础：规模和异质性的作用 近年来，人们已经清楚地了解种群的空间动态，包括栖息地破碎化的影响，对于开发更好的自然资源管理方法至关重要。景观生态学已经开发出描述空间环境模式的方法，而种群生态学则拥有研究这些模式背后的机制的悠久传统。该项目将在生态学的这两个方向之间架起桥梁，在简单的环境中使用简单的生物体。研究生物体是一种陆生等足类动物（“药丸虫”），具有简单的生物学特性，其环境（以色列内盖夫沙漠）提供了一个简化的景观，并具有明确的限制因素：水。本研究将重点关注分散作为解释等足类动物空间分布与资源分布相关的最重要机制。研究这个系统将产生对空间种群动态如何运作的一般见解，并最终将导致更好地理解更复杂的生态系统。