Decline of raccoon dog populations resulting from sarcoptic mange epizootics
Decline of raccoon dog populations resulting from sarcoptic mange epizootics
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DOI：
10.1515/mamm.1999.63.3.281
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发表时间：
1999-01-01
期刊：
影响因子：
1
通讯作者：
Kawamichi, T
中科院分区：
文献类型：
--
作者：
Shibata, F;Kawamichi, T
为了确定日本浣熊犬（Nyctereutes procyonoides）中疥螨的分布现状，并研究疥螨流行病对浣熊犬种群动态的影响，我们进行了全国范围的问卷调查。1987-1992年，日本47个县中有11个县发现和/或保护了患有疥癣的浣熊犬。在冬季和春季，疥螨成虫最常受到保护，这表明受感染的动物在冬季很难生存。每年受保护的疥螨成虫数量迅速增加，几年后，受保护的非疥螨成虫数量增加。疥癣成虫数量的峰值急剧下降。增加宿主密度可能使寄生虫增加和传播，在高宿主种群密度下可能发生疥螨流行病，导致宿主种群的潜在致命性下降。
To establish current distribution of sarcoptic mange in raccoon dogs (Nyctereutes procyonoides) in Japan and to examine the impact of sarcoptic mange epizootics on the population dynamics df raccoon dogs, we conducted a nation-wide questionnaire survey. Raccoon dogs with mange were reported as found and/or protected in 11 of 47 prefectures throughout Japan in the years 1987-1992. Mangy adults were most often protected during winter and spring, indicating that the survival of infected animals during winter was difficult. The number of mangy adults protected each year increased rapidly, a few years after numbers of non-mangy adults protected increased. A drastic decline in the peak in mangy adults. Increasing host densities may allow the parasites to increase and spread, and at high host population densities sarcoptic mange epizootics may occur, resulting in potentially fatal declines of host populations.