MAGNETIC ORIENTATION IN A SMALL MAMMAL, PEROMYSCUS-LEUCOPUS
MAGNETIC ORIENTATION IN A SMALL MAMMAL, PEROMYSCUS-LEUCOPUS
复制标题
DOI：
10.2307/1381663
复制
发表时间：
1989-02-01
影响因子：
1.7
通讯作者：
ANDERSON, JGT
中科院分区：
文献类型：
--
作者：
AUGUST, PV;AYVAZIAN, SG;ANDERSON, JGT
我们将白足鼠（Peromyscus leucopus）从它们的家园转移到40米外，并将它们释放在一个圆形的竞技场中。小鼠将其探索和逃避活动集中在对应于归巢方向的竞技场部分。在另一组小鼠中，我们在位移过程中逆转了它们周围地磁场的水平分量。这些人把他们的活动集中在圆形竞技场的反方向。小鼠不太可能使用视觉，化学或动觉线索来建立回家的方向。白足原甲的组织表现出很强的等温剩磁，可能含有生物源亚铁磁性物质。我们的研究结果表明，白足小鼠有磁感应，并使用地磁场作为指南针线索。
We displaced white-footed mice (Peromyscus leucopus) 40 m away from their home areas and released them in a circular arena. Mice concentrated their exploratory and escape activity in the portion of arena corresponding to home direction. In another group of mice, we reversed the horizontal component of the geomagnetic field surrounding them during displacement. These individuals concentrated their activity in areas of the circular arena opposite home direction. Mice were not likely using visual, chemical, or kinesthetic cues to establish home direction. Tissues of P. leucopus exhibit strong isothermal remanent magnetization and may contain biogenic ferrimagnetic material. Our results suggest that white-footed mice have a magnetic sense and use the geomagnetic field as a compass cue.