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Article

Effects of avian cholera on survival of Lesser Snow Geese Anser caerulescens: an experimental approach

M. D. Samuel, Auteur ; J. Y. Takekawa, Auteur ; V. V. Baranyuk, Auteur ; D. L. Orthmeyer, Auteur

Dans Bird Study (46(Suppl.) 1999)

Avian cholera, caused by the bacterium Pasteurella multocida, is one of the most important diseases affecting waterfowl in North America but little is known about the epizootiology of this disease or its impacts on annual survival rates. We ring[...]

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Article

Horvitz-Thompson survey sample methods for estimating large-scale animal abundance

M. D. Samuel, Auteur ; E.O. Garton, Auteur

Dans Transactions of The North American Wildlife and Natural Ressources Conference (59 1994)

Large-scale surveys to estimate animal abundance can be useful for monitoring population status and trends, for measuring responses to management or environmental alterations, and for testing ecological hypotheses about abundance. However, large[...]

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