RUI: An Analysis of Particle-Based Magnetic Field Transduction in the Bobolink

RUI：Bobolink 中基于粒子的磁场传导分析

• 批准号: 9011840
• 负责人: Robert Beason
• 金额: $ 13.76万
• 依托单位: SUNY College at Geneseo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9011840&HistoricalAwards=false
• 关键词: RUI; Analysis; Particle; Based; Magnetic

How birds navigate during long-distance migrations remains mysterious, but there is behavioral evidence to suggest that some birds detect the earth's magnetic field. There is controversy about whether such magnetic detection requires a magnetic material such as the mineral magnetite. This mechanism would be an exciting new discovery if true, but because of conflicting results, a rigorous set of tests still is needed to establish its validity. One property of magnetite is that it can be re-magnetized, and this project use the novel approach of applying a remagnetizing pulse to migratory birds, and then measuring their nightly behavior of preferred headings in a planetarium. The presence or lack of short-term or long- term effects from different conditions of remagnetization will be examined. This approach creates a set of critical tests to reject or accept whether behavioral magnetic field detection depends on magnetic particles. Results from this novel approach will have an impact on this controversial and interesting field, and this project also has a significant impact on undergraduate scientific experience.

鸟类在长距离迁徙中的导航方式 神秘的，但有行为证据表明， 有些鸟能探测到地球的磁场。 有 关于这种磁探测是否需要 磁性材料，如磁铁矿。 这 如果这是真的，这将是一个令人兴奋的新发现，但 由于相互矛盾的结果，一组严格的测试仍然 需要建立其有效性。 磁铁矿的一个性质 它可以被重新磁化，这个项目利用了小说 对候鸟施加再磁化脉冲的方法， 然后测量他们每晚的行为， 在天文馆里 是否存在短期或长期- 不同再磁化条件的长期影响将 接受检查。 这种方法创建了一组关键测试， 拒绝或接受行为磁场检测是否 取决于磁性粒子。 本小说的结果 这一做法将对这一有争议和 有趣的领域，这个项目也有一个重要的 对本科生科学经验的影响。