Ontogenetic stability of inherited migratory directions in a nocturnal bird migrant: comparison between the first and second year of life
作者:
Andreas J. Helbig,
期刊:
Ethology Ecology & Evolution
(Taylor Available online 1992)
卷期:
Volume 4,
issue 4
页码: 375-388
ISSN:0394-9370
年代: 1992
DOI:10.1080/08927014.1992.9523129
出版商: Taylor & Francis Group
关键词: bird migration;orientation;genetic directions;ontogeny;Sylviidae
数据来源: Taylor
摘要:
According to current theory young passerine migrants on their first migration are equipped with a genetic programme of duration and direction of migration which enables them to reach their winter quarters independently of adults. The question was investigated whether in birds prevented from gathering migratory experience the genetically determined directional information is expressed only during the first autumn migratory season or whether it is retained as an endogenous directional preference at least throughout the 2nd year of life.
点击下载:
PDF (3179KB)
返 回