Table 1 Estimates of sensitivity to magnetic inclination angle derived from empirical results
From: Animal magnetic sensitivity and magnetic displacement experiments
Inferred sensitivity to magnetic inclination | Reference | Method and notes |
|---|---|---|
~ 0.02 degrees | Wynn et al.5 | Changes in shearwater (Pufffinus puffinus) nesting locations were correlated with changes in inclination; of the 109 birds that changed location, over half moved when inclination had changed by as little as 0.01–0.02 degrees. |
~ 0.04–0.05 degrees | Wynn et al.6 | Analyses provide evidence that reed warblers (Acrocephalus scirpaceus) use specific (probably learned) inclination angles as a signal to terminate the return migration. See text for discussion. |
~ 0.01–0.05 degrees | Rodda15 | Changes in homing orientation of alligators (Alligator mississippiensis) in relation to subtle changes in Earth’s magnetic field |
