摘要
中国林蛙(Rana chensinensis)是栖息在温带森林中的主要两栖动物,其体内的“哈士蟆”油具有较高的营养价值。为了明确影响中国林蛙成活率的主要因素,采用野外生态观察、室内定量分析和人工养殖等方法,研究了其繁殖生态特性。结果表明,蝌蚪期成活率低的主要原因是寒冻、水体干涸和食物贫乏;而成蛙种群数量锐减的主要原因是人们对其的狂捕滥杀。采用人工养殖与自然增殖相结合的方式,可促进中国林蛙种群数量的快速增长。
The paper deals with the main factors affecting the survival rate of Rana chensinensis. The frog is the staple amphibian in the temperate forest and its oviduct is (?)cn in nutritions. The ecological observation in wild and the quantitative analysis at la(?)atory as well as the artificial breeding in pond were used to study the reproduction ecology of the frog. It is made clear by the results that when in the periods of tadpole, the factors lowered the survival rate are cold climate. Less food and dried up the pond.The reason of the tadpole population down quickly is the man's destroied seriously. In order to increase the frog population rapidly, the artificial breed should combined with natural reproduction of rana chensinensis.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1992年第5期89-93,共5页
Journal of Northeast Forestry University
关键词
中国林蛙
成活率
人工养殖
林蛙
Rana chensinensis
Survival rate
Artificial breed
