| タイトル | Endogenous timing factors in bird migration |
| 本文（外部サイト） | http://hdl.handle.net/2060/19720017432 |
| 著者（英） | Gwinner, E. G. |
| 著者所属（英） | Max-Planck-Inst. fuer Verhaltensphysiologie |
| 発行日 | 1972-01-01 |
| 言語 | eng |
| 内容記述 | Several species of warbler birds were observed in an effort to determine what initiates and terminates migration. Environmental and endogenous timing mechanisms were analyzed. The results indicate that endogenous stimuli are dominant factors for bird migration especially for long distances. It was concluded that environmental factors act as an assist mechanism. |
| NASA分類 | BIOSCIENCES |
| レポートNO | 72N25082 |
| 権利 | No Copyright |
