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Observations on a Localized Duck Sickness in the Delta Marsh; Summer, 1964
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Observations on a Localized Duck Sickness in the Delta Marsh; Summer, 1964

著者: David A Manuwal
版本/格式: 文章 文章 : 英语
刊登在:The Wilson Bulletin, Jun., 1967, vol. 79, no. 2, p. 219-222
数据库:JSTOR
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文件类型: 文章
所有的著者/提供者: David A Manuwal
ISSN:0043-5643
OCLC号码: 481721427
语言注释: English
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摘要:

An isolated outbreak of duck sickness was studied in the Delta Marsh, Manitoba. Evidence suggests that the bacterium Clostridium botulinum (Type C) was responsible for the deaths of 885 birds found at 22 Bay. The deaths were closely associated with fluctuating water levels. The ducks found most numerous in the kill were the Pintail, Blue-winged Teal, Mallard. Among the ducks represented, a large proportion (76:24) were drakes; however, for juvenile birds, a nearly perfect 50: 50 ratio existed. Other species, including shorebirds, gulls, terns, herons, grebes, Coots, and Marsh Hawks were found sick.

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