摘要
１９８６年唐家河自然保护区内扭角羚的实际数量为４８０～５２０头．作者通过Ｌｅｓｌｉｅ矩阵的方法，预测了该保护区内扭角羚种群１９８６～２００４年每隔３年各年份的理论数量分别为７１５，９６４，１３５８，１８４１，２５６４，３５８４头．讨论了该保护区扭角羚最适数量应控制在１９９２年的９６４头，最大维持量不得超过１９９５年的１３５８头．以３岁为年龄组距单位，将扭角羚划分成９个等距年龄组。
In 1986 there lived 480 to 520 takins in the Tangjiahe Nature Reserve.Using the Leslie matrix,the authors present a prediction of takins from year 1986 to year 2004 at an interval of 3 years that its numbers run as follows:715,964,1 358,1 841,2 564,3 584 respectively for the years 1989,1992,1995,1998,2001and 2004.The authors also hold that the optimum number of the takins in this reserve should be 964 and the maximum should be limited to 1 358.The takins,with 3 years old as an unit of agedistance,are divided into 9 isometric agegroups and the proportion between the agegroups is concluded when the population reaches the stable structure of age.
出处
《四川师范学院学报（自然科学版）》
1998年第2期142-146,共5页
Journal of Sichuan Teachers College(Natural Science)
基金
国家自然科学基金
四川省教委资助
关键词
自然保护区
扭角羚
种群数量动态
Tangjiahe Nature Reserve,takins,population dynamics.
