LTREB: A Long-term Study of an Amphibian Assemblage at the Landscape Scale

LTREB：景观尺度上两栖动物组合的长期研究

• 批准号: 9727014
• 负责人: Earl Werner
• 金额: $ 30.05万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-05-15 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9727014&HistoricalAwards=false
• 关键词: LTREB; Long; term; Study; Amphibian

9727014 Werner Most ecological studies are conducted on small spatial scales for short periods of time, and it is becoming increasingly apparent that we have little appreciation of the processes that influence ecological communities as we "scale-up." This project is an attempt to provide an understanding of such phenomena using amphibians as a model system. The research will continue a long-term data series on the distribution of 14 species of amphibians across 37 ponds on the University of Michigan's E.S. George Reserve. The data series is unique in the time span involved, the number of ponds, and the number of species to be sampled. Specifically, this study will: 1) continue collection of the presence/absence data on 37 ponds for the next 5 years, 2) collect quantitative data on population densities of all amphibian species and their predators in these ponds, and 3) quantify habitat characteristics of the ponds surveyed. The data will be carefully archived and made available over the world wide web. These data will enable the investigators to address questions at the landscape scale and will be available for long-term assessments of environmental change. This is particularly important in light of the possible global decline of amphibians and the widespread teratologies reported in eastern and mid-western North American anuran populations.

9727014 Werner 大多数生态研究都是在短时间内在小空间尺度上进行的，而且越来越明显的是，当我们“扩大规模”时，我们对影响生态群落的过程知之甚少。该项目试图使用两栖动物作为模型系统来理解此类现象。该研究将继续对密歇根大学 E.S. 实验室 37 个池塘中 14 种两栖动物分布的长期数据系列进行研究。乔治储备。该数据系列在涉及的时间跨度、池塘数量以及采样物种数量方面都是独一无二的。具体来说，本研究将：1）在未来 5 年内继续收集 37 个池塘存在/不存在的数据，2）收集这些池塘中所有两栖动物物种及其捕食者的种群密度的定量数据，3）量化所调查池塘的栖息地特征。这些数据将被仔细存档并通过万维网提供。这些数据将使研究人员能够解决景观尺度的问题，并将可用于环境变化的长期评估。考虑到全球两栖动物数量可能减少以及北美东部和中西部无尾动物种群普遍存在畸形现象，这一点尤为重要。