横断山脉北部林麝的种群生态研究  

A STUDY ON THE POPULATION ECOLOGY OF FOREST MUSK DEER (MOSCHUS BEREZOVSKII) AT THE NORTH OF HENGDUAN MOUNTAINS

作　　者：杨奇森[1] 胡锦矗[1] 彭基泰 

机构地区：[1]四川师范学院珍稀动物研究所 [2]甘孜州林业局

出　　处：《兽类学报》1990年第4期255-262,共8页Acta Theriologica Sinica

基　　金：国家自然科学基金资助项目

摘　　要：根据我们收集的106个林麝头骨,依据其骨片愈合情况及牙齿的磨损程度和饲养观察进行年龄鉴定。用曲线拟合法估计各年龄阶段的存活情况,拟编出该地区林麝种群的静态生命表并对此进行了系统分析。1.林麝种群可划分为5个年龄组,即幼仔组、少年组、成年Ⅰ组、成年Ⅱ组和老年组。2.用曲线拟合法估计出林麝各年龄阶段(t)相对于幼仔产出时的存活率(P(t)),当t=0时,P(t)=100;当2.5≤t≤20时,P(t)=105.116798e^(-0.282556t);当t≥20时,P(t)=0.3。不同年龄阶段林麝的雌雄性比不同,未成年阶段接近1:1,成年Ⅰ阶段为1.77:1,成年Ⅱ阶段为2.80:1,老年阶段为1:2.4。林麝的内禀增长率为0.071,平均世代时间为6.511年,净生殖率为1.5873,林麝6—8岁时繁殖价最高为3.0048。Musk is famous Chinese medical resourse, in which forest musk detr (Moschus be-rezovskii) is the essential species of producing musk. In order to master, conserve and exploit this natural animal resourse, we studied it's population ecology at the north of Hengduan Mountains. The results are as follows: 1. Based on 106 skulls, according to the recovers of the skull, wears of the teeth and the feeding colony, we determined the ages and divided it into five age classes: Baby, Cub, Adult Ⅰ , Adult Ⅱ and Senile. 2. According to the imitation of curve and age classes, we draw out the static life table and make out the survivorship curve (1x), death curve (dx) and death rate curve (l000qx). The equation of the relative survivorship rate to the baty P(t) and the age t is: P(t)=100 (t = 0) P(t)=105.116798e^0.282556t (2.5≤t<20, r= -0.982695) P(t) = 0 (t≥20) 3. In different age stage, the sexual rates are different, and in preproductive period (baby and cub stage),they are approximately 1:1, and in adult Ⅰ isl.77:1,adultⅡ ,2.80 :1, senile,1:2. 4. The intrinsic ratt of natural increase is 0.0710, mean length of generation is 6.5110 years, multiplication rate per generation is 1.5873, and at 8-8 years old, they have the greatest reproductive value 3.0048.

关 键 词：林麝 种群生态 

分 类 号：Q959.842[生物学—动物学]