Premigratory ruby-throated hummingbirds, Archilochus colubris, exhibit multiple strategies for fuelling migration
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- 作者：Lily Houa ; b ; Kenneth C. Welch Jr.a ; b ; kwelch@utsc.utoronto.ca" class="auth_mail" title="E-mail the corresponding author
- 关键词：energy balance ; mass ; migration ; passive integrated transponder (PIT) ; radiofrequency identification (RFID)
- 刊名：Animal Behaviour
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：121
- 期：Complete
- 页码：87-99
- 全文大小：494 K
文摘
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Ruby-throated hummingbirds display distinct premigratory fuelling strategies.
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Some gain mass rapidly over 4 days prior to migration, while others do not.
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Fattening hummingbirds increase foraging effort at mid-day and in the evening.
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Fattening hummingbirds exhibit reduced rates of overnight mass loss.
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No juvenile birds fattened before migration, suggesting strategies are age-related.