It is generally accepted that performance before breeding plays an important role in the reproduc-tive cycle of arctic-breeding birds (Ryder 1970, Klaassen 2003). Nevertheless, relatively little is
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| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.473.1173 http://www.avibirds.com/pdf/B/Brandgans9.pdf |