Variance-effective population number: the effects of sex ratio and density on the mean and variance of offspring numbers in the flour beetle, Tribolium castaneum.
Variance-effective population number: the effects of sex ratio and density on the mean and variance of offspring numbers in the flour beetle, Tribolium castaneum.
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方差有效种群数量：性别比和密度对赤拟谷盗后代数量均值和方差的影响。
DOI：
10.1017/s0016672300026045
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
Wade,MJ
中科院分区：
文献类型：
--
作者：
Wade,MJ
我报道了性别比和密度对粉甲雌雄后代数量均值和方差影响的实验研究结果。用Crow&Morton(1955)的方法根据观察到的子代数量的方差来估计方差有效数量。子代数量的平均值和方差都随性比和密度而变化；正如以前的研究(Wade，1980)所发现的那样，雄性的子代数量通常比雌性的变化更大。在所有性别比中，各性别的方差与平均子代数之比近似为1。
I report the results of an experimental study of the effects of sex ratio and density on the mean and variance in offspring numbers in both sexes of the flour beetle, Tribolium castaneum. The variance-effective number is estimated from the observed variance in offspring numbers using the methods of Crow & Morton (1955).Both the mean and the variance in offspring numbers were found to vary with sex ratio and density; as was found in previous studies (Wade, 1980), males were generally more variable in offspring numbers than females. The ratio of variance to mean progeny numbers in each sex was approximately unity at all sex ratios.