Seasonal variations in the food consumption of woodchucks (Marmota monax).
Seasonal variations in the food consumption of woodchucks (Marmota monax).
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土拨鼠（Marmota monax）食物消耗的季节性变化。
DOI：
10.2307/1378679
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发表时间：
1971
影响因子：
1.7
通讯作者：
M. W. Fall
中科院分区：
文献类型：
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作者：
M. W. Fall
捕获后立即测量了 155 只土拨鼠 (Marmota monax) 的食物消耗，以确定自然种群的喂养是否具有季节性节律。三月份成年人的食物摄入量最低。它在五月份达到最高值，然后在整个夏季下降；有些人在深秋时暂时增加食物摄入量。实验室菌落的比较显示，在恒温和光周期条件下，出现相似的节律。在现有生活史信息的背景下考虑，与不同年龄组相关的食物消耗公理的变异表明，节律的周期大约少于一年。
Food consumption of 155 woodchucks ( Marmota monax ) was measured immediately after capture to determine whether a seasonal rhythm obtained in feeding of a natural population. Food intake of adults was lowest in March. It reached a maximum in May, then declined through the summer; some individuals increased food intake temporarily in late autumn. Comparative ata from a laboratory colony showed that a similar rhythm occurred under conditions of constant temperature and photoperiod. Variability in food consumption axima associated with different age groups, considered in the context of vailable life history information, suggested that the rhythm had a period omewhat less than 1 year.