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Age-specific breeding in Emperor Geese

Joel A. Schmutz
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Abstract

I studied the frequency with which Emperor Geese ( Chen canagica ) of known age were observed breeding on the Yukon-Kuskokwim Delta, Alaska. No one- or two-year old geese were observed on nests. Three-year old geese bred at a lower rate than four-year old geese. These data suggest that patterns of age-specific breeding in Emperor Geese are similar to other sympatrically nesting, large bodied geese [Greater White-fronted Geese ( Anser albifrons )] but delayed relative to smaller bodied geese [Cackling Canada Geese ( Branta canadensis minima ) and Pacific Black Brant ( B. bernicla nigricans )].

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Joel A. Schmutz. 2000. Age-specific breeding in Emperor Geese. https://doi.org/10.1676/0043-5643(2000)112%5B0261%3Aasbieg%5D2.0.co%3B2

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