Behavioural and Physiological Reactions to Environmental Variation in Bird Migration: a Review
Behavioural and Physiological Reactions to Environmental Variation in Bird Migration: a Review
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DOI:
10.1007/978-3-662-05957-9_10
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
L. Jenni;M. Schaub
中科院分区:
文献类型:
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作者:
L. Jenni;M. Schaub
Many features of the migration of passerine birds are endogenously programmed and have a strong genetic basis. At least in inexperienced migrants, the general seasonal course of migration is endogenously controlled, such as the onset, the temporal pattern, the direction of migration and the seasonal pattern of energy stores. This leads to the conclusion that an endogenous spatiotemporal migration programme guides inexperienced migrants from their place of birth to their first winter quarters (summarized in Berthold 1996).However, an endogenous spatiotemporal programme is probably not sufficient to lead birds to their first winter quarters (Gwinner 1996; Thorup and Rab01 2001). Photoperiod acts as the most important synchronizer of circannual rhythms and accelerates or inhibits individual migration processes (Berthold 1996; Gwinner 1996). There is a large body of observations on environmental factors influencing bird migration. However, as concluded by Berthold (1996), many of these observations remain inconclusive with respect to whether and how exactly environmental factors influence migration and modify the endogenously programmed course of migration. Furthermore, many physiological constraints and adaptations have been shown to influence migration (Jenni and Jenni-Eiermann 1998; S. Jenni-Eiermann and L. J enni, this VoL).