OTHER: Trophic Dynamics of a Changing Zooplankton Community

其他：不断变化的浮游动物群落的营养动态

• 批准号: 8716187
• 负责人: John Lehman
• 金额: $ 10.8万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-01-01 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8716187&HistoricalAwards=false
• 关键词: OTHER; Trophic; Dynamics; Changing; Zooplankton

Lake Michigan is being invaded by a predator new to the Nearctic. Bythotrephes cederstroemii, was first found in the Laurentian Great Lakes in December, 1984. By August 1986, the species had spread to Southern Lake Michigan, and was doubling in abundance every 10 days. Bythotrephes is invading aggressively, particularly in the offshore region, but is so far avoiding habitats occupied by glaciomarine relict species. As an invading plankton species joining an existing community, it represents a rare opportunity to study manipulation of a food web at the middle trophic level. Judging from its persistence and success in deep European lakes, Bythotrephes will probably become a permanent member of zooplankton communities in the Nearctic. This proposal seeks to study the trophic dynamics of this community-level perturbation across the physical and ecological gradients between inshore and offshore regions.

密歇根湖正被一种新的食肉动物入侵 新北区的。 Bythotrephes cederstroemii，首次发现于 1984年12月的劳伦特五大湖。 1986年8月， 物种已经扩散到密歇根湖南部，并在2009年翻了一番。 每10天一次。 拜特腓斯正在大举入侵， 特别是在近海地区，但到目前为止， 冰川海洋残留物种的栖息地。 作为一个入侵者 浮游生物物种加入现有的社区，它代表了一个 研究食物网操纵的难得机会 中营养级 从它的坚持和成功来看 在欧洲的深湖中，拜索特里夫可能会成为 新北区浮游动物群落的永久成员。 这项建议旨在研究这一营养动力学 社区一级的干扰， 近岸和近海区域之间的梯度。