LTREB: Stopover Biology of Intercontinental Landbird Migrants

LTREB：洲际陆鸟迁徙的中途停留生物学

• 批准号: 0554754
• 负责人: Frank Moore
• 金额: $ 9万
• 依托单位: University of Southern Mississippi
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-06-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0554754&HistoricalAwards=false
• 关键词: LTREB; Stopover; Biology; Intercontinental; Landbird

Over two-thirds of all the songbirds that breed in temperate North America migrate long distances to nonbreeding areas in Mexico, Central and South America and the islands of the Caribbean. This grant will continue a long-term research program that is organized around the problems migrants face when they stop over during migration and how migrants contend with those problems along the northern coast of the Gulf of Mexico. Specifically, this research will address the importance of the interplay between the energetic state of arriving migrants and habitat availability (size and shape of suitable habitats) on stop-over behavior and the implications of land use change and recent hurricane disturbance on this interplay. Additional studies will consider resource use by arriving migrants, particularly food availability and nutritional requirements. Another important component in stop-over biology in migratory birds is sleep and the fact that most birds migrate at night when they are normally sleeping. How the need for sleep during the day affects the time available for foraging will also be investigated. Finally, the investigators will look at the importance of infections by pathogens, particularly West Nile Virus and Eastern Equine Encephalitis, during stop-overs during migration. This information will be critical in developing conservation strategies for migrant birds and will contribute to our understanding of documented population declines among many migrant species over the past quarter century.

超过三分之二的在北美温带繁殖的鸣禽长途迁徙到墨西哥、中美洲和南美洲以及加勒比海岛屿的非繁殖区。 这笔赠款将继续围绕移民在移民期间停留时面临的问题以及移民如何应对墨西哥湾北方海岸沿着的这些问题组织的长期研究计划。 具体而言，本研究将解决的重要性之间的相互作用的能量状态到达移民和栖息地的可用性（大小和形状合适的栖息地）的中途停留行为和土地利用的变化和最近的飓风干扰的影响，这种相互作用。 其他研究将考虑抵达的移徙者的资源使用情况，特别是粮食供应和营养需求。 候鸟中途停留生物学的另一个重要组成部分是睡眠，事实上大多数鸟类在夜间迁徙，而它们通常是在睡觉。白天的睡眠需求如何影响觅食的时间也将被调查。最后，研究人员将研究病原体感染的重要性，特别是西尼罗河病毒和东部马脑炎，在迁徙中途停留期间。 这些信息将是至关重要的，在制定保护战略的候鸟，并将有助于我们了解记录的人口下降，在许多迁徙物种在过去的世纪。