Phillips J B
Science. 1986 Aug 15;233(4765):765-7. doi: 10.1126/science.3738508.
Male eastern red-spotted newts (Notophthalmus viridescens) under controlled laboratory conditions exhibit unimodal magnetic compass orientation either in a trained compass direction or in the direction of their home pond. If the vertical component of the magnetic field is inverted, newts exhibiting the simple-compass response undergo a 180 degree reversal in orientation, whereas newts orienting in the home direction are unaffected by this treatment. These results indicate that newts use an axial compass mechanism for simple-compass orientation similar to that found in migrating birds. However, a distinct magnetoreception pathway with polar response properties is involved in homing and is possibly linked in some way to the navigational map.
在实验室可控条件下，雄性东部红斑蝾螈（绿红东美螈）会在训练过的罗盘方向或朝着其家乡池塘的方向表现出单峰磁罗盘定向。如果磁场的垂直分量被反转，表现出简单罗盘反应的蝾螈会在定向时发生180度的反转，而朝着家乡方向定向的蝾螈则不受这种处理的影响。这些结果表明，蝾螈在简单罗盘定向时使用的轴向罗盘机制与在候鸟中发现的类似。然而，一种具有极性反应特性的独特磁感受途径参与了归巢过程，并且可能在某种程度上与导航地图相关联。
