论文标题
磁性模型的数值测试有助于对美国蟑螂进行行为实验
Numerical tests of magnetoreception models assisted with behavioral experiments on American cockroaches
论文作者
论文摘要
许多动物对外部磁场表现出敏感性，但只有在最简单的生物中才能理解感应机制。在这里，我们报告了美国蟑螂（Periplaneta Americana）的行为实验，以10分钟的时间进行旋转的外部磁场。当将昆虫放置在旋转的地球强度场中时，昆虫的活性增加，而这种效应在更强的旋转场中会降低。我们根据这种适应结果分析了磁体受体，磁铁矿模型和自由基对模型的建立模型。我们的发现表明，磁铁矿模型被排除在外，自由基对模型需要与数据兼容的强有力的其他假设。
Many animals display sensitivity to external magnetic field, but only in the simplest organisms the sensing mechanism is understood. Here we report on behavioural experiments where American cockroaches (Periplaneta americana) were subjected to rotating external magnetic fields with a period of 10 minutes. The insects show increased activity when placed in a rotating Earth-strength field, whereas this effect is diminished in ten times stronger rotating field. We analyse established models of magnetoreception, the magnetite model and the radical pair model, in light of this adaptation result. Our findings show that the magnetite model is excluded and the radical pair model requires strong additional assumptions to be compatible with the data.
