在线查找
与期刊/刊物的链接
在图书馆查找
正在查找有这资料的图书馆...
详细书目
| 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 |
| 奖励: |
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.
标签
添加标签 目的是为 "Observations on a Localized Duck Sickness in the Delta Marsh; Summer, 1964".
争取是第一个!
