摘要
在冕宁县冶勒自然保护区设点 ,从种群水平对同域分布、以同种竹子为食的大熊猫和小熊猫种群能流进行了研究。结果表明 :通过大熊猫种群的能流 ( 1 86× 1 0 6kJ/km2 .yr.)多于小熊猫种群 ( 6 34× 1 0 5kJ/km2 .yr.) ,前者大约是后者的 2 9倍 ,说明大熊猫在群落中可能处于优势地位。虽然两种熊猫可利用食物资源占地面生物量的比例很小 (大、小熊猫分别为 1 2 79%和 3 92 % ) ,但是其每年摄入的能量和通过种群的能流仅占食物资源现存生物量或可利用生物量的百万分之几到万分之几。因此 ,研究区域内两种熊猫的食物资源十分丰富 ,若竹子不大面积开花枯死 ,食物资源将不会成为其种群发展的限制因子。
This study was conducted in the Giant panda and Red panda Observation Station of Yele Natural Reserve, Mianning county, Sichuan province. We analyzed the energy flow through the populations of both Giant pandas and Red pandas. The results indicated that energy flow through the Giant panda population was higher than that through the Red panda population. The former's (1 86×10\+6kJ/km 2·yr.) was 2 9 times as much as the latter's (6 34×10\+5 kJ/km 2·yr.). Though useable food resources of Giant pandas and Red pandas made up only 12 79% and 3 92% of total aboveground standing biomass, energy intake and energy flow through populations of the two species each year just accounted for 1‰ to 0 01‰ of the usable food biomass or aboveground standing biomass. Therefore, bamboo resources were quite abundant in the Yele Natural Reserve. Bamboo resources would not be a limiting factor to the population increases of both pandas unless the bamboo reached its reproductive age.
出处
《动物学报》
SCIE
CAS
CSCD
2000年第3期287-294,共8页
ACTA ZOOLOGICA SINICA
基金
中国科学院"青年科学家创新小组"专项基金
国家自然科学基金资助项目!(No.3 973 0 0 80
No .3 9870 1 0 2 )&&
关键词
大熊猫
小熊猫
种群
能流
食物资源
Giant panda ( Ailuropoda melanoleuca ), Red panda ( Ailurus fulgens ), Bamboo resources, Energy flow, Population
