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人口持久性。 景观遗传学的新兴领域提供了解决这一目标的新方法，非常适合两栖动物，因为它们的分布对景观的特征敏感，例如水分，道路，高度和土地利用变化。在黄石国家公园选择了两个两栖动物，即北方蟾蜍和北方合唱青蛙，因为它们分别代表了分布和丰度的差异，即分别与斑点和下降的相对于连续和丰富。 拟议的研究将使用遗传数据并建模景观特征的效果来解释1）物种扩散的差异，2）物种分布（即斑点与连续），以及3）种群持久性。研究结果将增强更大的黄石网络库存和监测项目，并监控项目，并可以共享帮助管理决策。 随着公共宣传，将为黄石访客开发与研究有关的教育活动。将确定影响两栖动物分散和下降的环境因素，这对于理解其他位置的两栖动物下降可能很重要。 对于更广泛的保护应用，该项目中开发的新技术有可能应用于任何物种中，以识别分散障碍，预测土地利用替代方案的影响并确定保护领域的优先级。