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Population trends and priority conservation sites for Mexican Duck Anas diazi

A. Perez-Arteaga, Auteur ; K. J. Gaston, Auteur ; M. Kershaw, Auteur

Dans Bird Conservation International (12(1) MAR 2002)

Little is known about Mexican Duck Anas diazi biology and populations. We analyse long-term (1960-2000) trends of Mexican Duck numbers in Mexico and employ contemporary count data (1991-2000) from the U.S. Fish and Wildlife Service midwinter sur[...]

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