The Interplay of Biotic and Abiotic Factors in a Chilean Semiarid Community: A Long-Term Study at Multiple Temporal and Spatial Scales

智利半干旱群落生物和非生物因素的相互作用：多时空尺度的长期研究

• 批准号: 9873708
• 负责人: Peter Meserve
• 金额: $ 33.08万
• 依托单位: Northern Illinois University
• 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: 1999-03-15 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9873708&HistoricalAwards=false
• 关键词: Interplay; Biotic; Abiotic; Factors; Chilean

9873708MeserveThis project will continue a long-term, large-scale experimental manipulation examining the importance of biotic interactions including predation, interspecific competition and herbivory in a Chilean semiarid community. This project would continue the longest large-scale experimental study of abiotic and biotic factors in the temperate neotropics and would help to understanding the importance of ecological scale, metapopulation dynamics, and abiotic vs. biotic processes in this important but little known system. Due to the long-term nature of this research the effects of biotic variability on community dynamics, via ENSO are being addressed. Experiments include the testing of the importance of "bottom-up" forces on small mammals. Studies of seed rain and granivory, nutrients, mycorrhiza and metapopulation dynamics will also be initiated in this proposed round of research.

9873708 MeserveThis项目将继续一个长期的，大规模的实验操作检查生物相互作用的重要性，包括捕食，种间竞争和食草动物在智利半干旱社区。该项目将继续在温带新热带地区进行最长时间的非生物和生物因素的大规模实验研究，并将有助于了解生态规模，集合种群动态以及非生物与生物过程在这个重要但鲜为人知的系统中的重要性。由于这项研究的长期性，正在研究生物变异性通过厄尔尼诺/南方涛动对群落动态的影响。 实验包括测试“自下而上”的力量对小型哺乳动物的重要性。在拟议的这一轮研究中，还将开始对种子雨和granivory、营养物质、菌根和集合种群动态进行研究。