The spring decline in deer mice: death or dispersal?
The spring decline in deer mice: death or dispersal?
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春季鹿鼠数量下降：死亡还是分散？
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
D. Fairbairn
中科院分区：
文献类型：
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作者：
D. Fairbairn
人口统计学过程与发病的繁殖在春季进行检查的人口鹿鼠，Peromyscus maniculatus。许多雄性和雌性小鼠在这个时候从种群中消失。雄性动物的消失似乎是由于体重轻的从属动物的分散。然而，雌性的消失似乎主要是由于早期繁殖的雌性死亡。这种差异的后果之间的性别限制的繁殖密度进行了讨论。两个假设有关的人口过程中的男性，女性，并描述了一个可能的实验测试。
Demographic processes associated with the onset of breeding in spring are examined in a population of deer mice, Peromyscus maniculatus. Many mice of both sexes disappear from the population at this time. The disappearance of males appears to result from the dispersal of light-weight, subordinate animals. The disappearance of females, however, appears to be due mainly to mortality of early-breeding females. The consequences of this difference between the sexes for limitation of breeding densities are discussed. Two hypotheses relating the population processes of males to those of females are presented, and a possible experimental test of these is described.