AN ALTITUDINAL SURVEY OF REPRODUCTION IN PEROMYSCUS-MANICULATUS
AN ALTITUDINAL SURVEY OF REPRODUCTION IN PEROMYSCUS-MANICULATUS
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DOI：
10.2307/1931951
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发表时间：
1960-01-01
期刊：
影响因子：
4.8
通讯作者：
DUNMIRE, WW
中科院分区：
文献类型：
--
作者：
DUNMIRE, WW
在加州白色山西坡海拔4500、7100、9800和12,400英尺的4个小鼠种群中，比较了一年内的繁殖情况。在低海拔地区，小鼠比在高海拔地区繁殖时间更长，产生更多的窝仔（3倍的年轻人）。山顶上的垃圾稍微大一些。最高的人口密度出现在7100英尺。宫内死亡率与观察到的人口密度成反比。
Reproduction through a year was compared in 4 populations of mice living at elevations of 4500,7100, 9800, and 12,400 feet on the west slope of White Mountain, California. At lower elevations mice bred longer and produced more litters (3 times as many young) than at high altitudes. Litters were slightly larger at the mountaintop. Highest population density existed at 7100 ft. Intra-uterine mortality was inversely proportional to observed population density.