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Possible Origins and Adaptive Value of Female-Female Pairing in Gulls

John P. Ryder
Proceedings of the Colonial Waterbird Group
Vol. 2 (1979), pp. 138-145
Published by: Waterbird Society
DOI: 10.2307/1520947
Stable URL: http://www.jstor.org/stable/1520947
Page Count: 8
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Possible Origins and Adaptive Value of Female-Female Pairing in Gulls
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