Collaborative Research: Grizzly Bear Digging in Subalpine Meadows: Influences on Plant Distributions and Nitrogen Availability

合作研究：灰熊在亚高山草甸挖掘：对植物分布和氮素有效性的影响

• 批准号: 9510447
• 负责人: John Pastor
• 金额: $ 11.15万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-10-01 至 1999-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9510447&HistoricalAwards=false
• 关键词: Collaborative; Research; Grizzly; Bear; Digging

9510447 Pastor Grizzly Bear Digging in Subalpine Meadows: Influences on Plant Distributions and Nitrogen Availability Grizzly bears are omnivores who often feed intensively on bulbs of plants such as glacier lilies. Foraging by bears can overturn large tracts of subalpine meadows. Preliminary observations suggest that this activity may increase nitrogen availability, seed production, bulb nitrogen, and bulb carbohydrate content. As such, these large animals may play major roles in the structure and function of subalpine plant communities. This project will rigorously test this hypothesis in areas inside and adjacent to Rocky Mountain National Park in Montana. This research will consider the role of a large omnivorous animal on the ecosystems in which they reside.

9510447在亚高山草地上挖掘的灰熊牧师：对植物分布和氮的影响灰熊的影响是杂食动物，他们经常以冰川百合等植物的鳞茎为食。熊的觅食可以覆盖大量的亚高山草地。初步观察结果表明，这种活性可能会增加氮的可用性，种子产生，鳞茎氮和鳞茎碳水化合物含量。因此，这些大动物可能在亚高山植物群落的结构和功能中起主要作用。该项目将严格检验在蒙大拿州落基山国家公园内部和附近的地区和附近的该假设。这项研究将考虑大型动物在其居住的生态系统中的作用。