Dissertation Enhancement Grant: Impact of Local and Regional Processes on Foraging Patterns and Community Organization

论文增强补助金：地方和区域进程对觅食模式和社区组织的影响

• 批准号: 9724719
• 负责人: Bette Loiselle
• 金额: $ 1.61万
• 依托单位: University of Missouri-Saint Louis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-15 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9724719&HistoricalAwards=false
• 关键词: Dissertation; Enhancement; Grant; Impact; Local

9724719 Loiselle This Americas Program dissertation enhancement grant will fund Grace Servat, under the direction of Dr. Bette Loiselle, University of Missouri, St. Louis, on a study to elucidate the patterns and underlying mechanisms that shape the foraging ecology of birds associated with a unique woodland habitat of the High Andes in South America. This community is well suited for the present study because it is a distinctive biological system characterized by high levels of endemism, its scattered distribution in the Andes provides discrete replicates for study, and the plant and bird species composition are relatively simple, when compared to more species-rich forests at lower elevation, thus facilitating detailed ecological studies at a community level. The major objectives of the study are to document and compare, across replicate sites, the foraging ecology of individual bird species feeding on arboreal arthropods; to determine the extent to which patterns observed in the foraging ecology of bird species and the assemblage as a whole are repeated across regions; and to determine which scale and factors best explain variation in the foraging ecology of individual species. The research will integrate natural history observations with detailed ecological studies on availability of arthropod resources, vegetation structures and the abundance of potential competitors and predators. The proposed study will contribute new information about a distinctive and highly threatened Andean system, as well as provide a model to examine the importance of local and regional processes in shaping individual foraging ecology and community patterns. ***

在圣路易斯密苏里大学Bette Loiselle博士的指导下，Grace Servat将获得这项美洲项目论文增强资助，研究南美洲安第斯山脉高海拔地区独特林地栖息地鸟类觅食生态的模式和潜在机制。该群落是一个独特的生物系统，具有高度的地方性特征，其在安第斯山脉的分散分布为研究提供了离散的复制，并且与低海拔物种丰富的森林相比，植物和鸟类的物种组成相对简单，从而便于在群落水平上进行详细的生态研究。该研究的主要目的是记录和比较，在不同的复制地点，以树栖节肢动物为食的单个鸟类物种的觅食生态；确定在鸟类觅食生态中观察到的模式和整个鸟类组合在不同地区重复的程度；并确定哪种尺度和因素最能解释单个物种觅食生态的变化。该研究将结合自然历史观察和节肢动物资源的可利用性、植被结构以及潜在竞争者和捕食者的丰富程度的详细生态研究。这项拟议的研究将提供关于一个独特的、受到高度威胁的安第斯系统的新信息，并提供一个模型来检验地方和区域过程在塑造个体觅食生态和群落模式中的重要性。＊＊＊