DISSERTATION RESEARCH: Limits to Species' Distributions: A Landscape Genetic Study of Two Amphibian Species in Yellowstone National Park

论文研究：物种分布的限制：黄石国家公园两种两栖动物的景观遗传学研究

• 批准号: 0608458
• 负责人: Andrew Storfer
• 金额: $ 1.2万
• 依托单位: Washington State University
• 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 2008-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0608458&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Limits; Species; Distributions

A primary goal of evolutionary ecology is to understand species distributions and population persistence. The emerging field of landscape genetics provides new ways to address this goal and is ideal for amphibians because their distributions are sensitive to characteristics of the landscape, such as moisture, roads, elevation, and land use change. Two amphibians, the boreal toad and boreal chorus frog, in Yellowstone National Park were selected for study because they represent differences in distribution and abundance, i.e., patchy and declining vs. continuous and abundant, respectively. The proposed research will use genetic data and model the effect of landscape characteristics to explain differences in 1) species dispersal, 2) species distributions (i.e., patchy vs. continuous), and 3) population persistence.Research results will enhance the Greater Yellowstone Network Inventory and Monitoring project and be shared to aid management decisions. As public outreach, educational activities related to the research will be developed for Yellowstone visitors. Environmental factors influencing amphibian dispersal and decline will be identified, which may be important for understanding amphibian declines in other locations. For broader conservation application, novel techniques developed in this project could potentially be applied in any species to identify dispersal barriers, predict impacts of land use alternatives, and prioritize conservation areas.

进化生态学的主要目标是了解物种分布和种群持续性。 景观遗传学的新兴领域提供了实现这一目标的新方法，并且对于两栖动物来说是理想的选择，因为它们的分布对景观特征敏感，例如湿度、道路、海拔和土地利用变化。选择黄石国家公园的两种两栖动物（北方蟾蜍和北方合唱蛙）进行研究，因为它们代表了分布和丰富度的差异，即分别是斑驳和下降与连续和丰富。 拟议的研究将使用遗传数据并模拟景观特征的影响来解释 1) 物种扩散、2) 物种分布（即斑块与连续）和 3) 种群持久性的差异。研究成果将增强大黄石网络库存和监控项目并共享以帮助管理决策。 作为公共宣传活动，将为黄石游客开展与该研究相关的教育活动。将确定影响两栖动物扩散和衰退的环境因素，这对于了解其他地区两栖动物的衰退可能很重要。 为了更广泛的保护应用，该项目开发的新技术有可能应用于任何物种，以识别扩散障碍，预测土地利用替代方案的影响，并确定保护区的优先顺序。