Doctoral Dissertation Research: Migratory Shorebird Response to Habitat Availability Dynamics

博士论文研究：候鸟对栖息地可用性动态的反应

• 批准号: 1459226
• 负责人: Jennifer Swenson
• 金额: $ 1.6万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-03-15 至 2017-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1459226&HistoricalAwards=false
• 关键词: Doctoral; Dissertation; Research; Migratory; Shorebird

An understanding of species-habitat relationship is fundamental for adopting a balanced approach for managing and conserving natural resources. This doctoral dissertation research project will investigate surface water resources and habitat changes over the past two decades to understand habitat resource availability for migratory shore birds. The project will assess broad and fine-scale habitat availability and will analyze differences between habitat types across wet and dry years. The research will contribute to a better understanding of natural wetlands and agriculture lands as potential habitats and the challenges of managing these water-rich resources under stressed conditions. It will provide new information regarding how spatio-temporal dynamics influence habitat quality and how public and private lands can be optimally managed to serve socio-economic and environmental needs. The doctoral student will work closely with several local organizations and nongovernmental organizations (NGOs) with the findings likely to guide policy makers in selecting and protecting fragile environments. Because shorebirds are among the most migratory species on a global level, the research will inform habitat management and conservation managers on a broad scale. As a Doctoral Dissertation Research Improvement award, this award also will provide support to enable a promising student to establish a strong independent research career.Changes in habitat availability preferred by shorebirds are not well understood, particularly for inland wetlands and flood-irrigated agricultural areas. Because large portions of the habitat exist on agricultural lands, the synchronization of rice-field inundations with shorebird migration plays an important role in providing habitat benefits to the birds. This project will address two core questions: (1) What are the external drivers impacting long-term shorebird habitat availability? (2) How do these changes in habitat availability vary across spatial scales? The project will use multi-temporal satellite imagery, survey data, and in situ information for the Sacramento River Valley in California to quantify habitat availability in the area. The analyses will provide an assessment of the response of migratory shorebirds to changes in habitat availability, water depth and land use. As a key component, the comparative differences across wet and dry years will help improve monitoring and management of shorebirds and their wetland habitats.

了解物种与栖息地的关系，是采取平衡方法管理和保护自然资源的基础。 本博士论文研究项目将调查地表水资源和栖息地的变化，在过去的二十年中，了解栖息地资源的可用性迁移海岸鸟类。 该项目将评估广泛和精细规模的栖息地的可用性，并将分析在潮湿和干燥的年份栖息地类型之间的差异。 这项研究将有助于更好地了解作为潜在栖息地的自然湿地和农田，以及在压力条件下管理这些富水资源的挑战。 它将提供新的信息，说明时空动态如何影响生境质量，以及如何对公共和私人土地进行最佳管理，以满足社会经济和环境需求。 博士生将与几个当地组织和非政府组织（NGO）密切合作，研究结果可能会指导政策制定者选择和保护脆弱的环境。 由于滨鸟是全球范围内最具迁徙性的物种之一，这项研究将为栖息地管理和保护管理人员提供广泛的信息。 作为博士论文研究改进奖，该奖项还将提供支持，使有前途的学生建立一个强大的独立的研究生涯。滨鸟偏好的栖息地可用性的变化还没有得到很好的理解，特别是内陆湿地和洪水灌溉的农业地区。 由于大部分的栖息地存在于农业用地，稻田洪水与滨鸟迁徙的同步在为鸟类提供栖息地利益方面发挥着重要作用。 该项目将解决两个核心问题：（1）影响滨鸟栖息地长期可用性的外部驱动因素是什么？(2)这些栖息地可用性的变化在不同的空间尺度上是如何变化的？ 该项目将使用多时间卫星图像，调查数据，并在加州的萨克拉门托河谷的现场信息，以量化该地区的栖息地的可用性。 这些分析将评估迁徙滨鸟对栖息地、水深和土地使用变化的反应。 作为一个关键组成部分，丰水和干旱年份的比较差异将有助于改善对水鸟及其湿地栖息地的监测和管理。