Dissertation Research: Local vs. Regional Control of Zooplankton Community Structure

论文研究：浮游动物群落结构的局部与区域控制

• 批准号: 9972656
• 负责人: Mathew Leibold
• 金额: $ 0.93万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-06-01 至 2001-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9972656&HistoricalAwards=false
• 关键词: Dissertation; Research; Local; vs.; Regional

9972656Leibold and ShurinUniversity of ChicagoZooplankton communities are structured by biotic and abiotic factors but also by dispersal among habitats. Patterns of regional diversity suggest that there is not limit to local diversity and that species are limited by dispersal. Experimental introductions of species, however, indicate that communities are nearly saturated with species. This proposal would resolve this contrast by examining the assumption that species interactions place an upper limit on local diversity. It presents a metapopulation model to examine the effects of competition, predation and dispersal limitation on patterns of local and regional diversity. It would test the model empirically examining the role of predation as it influences zooplankton communities and consider the interactions of dispersal and predation.

9972656莱博尔德和苏宁芝加哥大学浮游动物群落是由生物和非生物因素构成的，但也由栖息地之间的扩散构成。区域多样性的格局表明，当地的多样性不受限制，物种受到扩散的限制。然而，物种的实验介绍表明，群落中几乎饱和了物种。这一提议将通过检验物种相互作用对当地多样性造成上限的假设来解决这种反差。它提出了一个集合种群模型来考察竞争、捕食和扩散限制对局部和区域多样性格局的影响。它将对该模型进行实证检验，考察捕食对浮游动物群落的影响，并考虑扩散和捕食的相互作用。