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1 July 2016 Waterbird Susceptibility to Avian Cholera at Hayward Marsh, California, USA
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Abstract

We characterized past avian cholera outbreaks in waterbirds at Hayward Marsh, California, US. In 2013, we surveyed populations and determined the presence of disease using several diagnostic methods, including behavioral and physical observations, field necropsy, and bacterial culture. We compiled this information with data from previous outbreaks from 1990–2012 to compare waterbird abundance to various measures of mortality, including percentage of mortality and percentage of difference between abundance and mortality by species. We suggest that Ruddy Duck (Oxyura jamaicensis) have consistently suffered greater mortality from this disease than have other species at this site.

Amy K. Wray, Douglas A. Bell, Peter Dramer, and Mark Taylor "Waterbird Susceptibility to Avian Cholera at Hayward Marsh, California, USA," Journal of Wildlife Diseases 52(3), 699-704, (1 July 2016). https://doi.org/10.7589/2015-11-306
Received: 9 November 2015; Accepted: 1 February 2016; Published: 1 July 2016
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