Life History Studies of the Lesser Snow Goose (Anser caerulescens caerulescens). III. The Selective Value of Plumage Polymorphism: Net Fecundity

Abstract
Between 1969 and 1977 the frequency of the blue phenotype of the dimorphic Lesser Snow Goose (Anser caerulescens caerulescens) showed a steady increase at the L...

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