圈养的理查森地松鼠（Spermophilus richardsoni）与季节相关的生理和行为变化。

Seasonally-related physiological and behavioural changes in captive Richardson's ground squirrels (Spermophilus richardsoni).

Harding D H, Rauch J C

Comp Biochem Physiol A Comp Physiol. 1983;74(2):363-7. doi: 10.1016/0300-9629(83)90616-3.

Abstract

This study reveals the interrelationship among body weight, food intake and activity for a one-year period in two different year groups of captive juvenile Richardson's ground squirrels (Spermophilus richardsoni). 2. An increase in body weight during initial captivity and during the post-hibernation period related to an increase in food intake and in activity. 3. High and constant body weights during the pre-hibernation seasons were associated with a "voluntary" reduction in food intake, a decline in standard metabolic rate and in activity. These changes occurred before changes in photoperiod and temperature. 4. Hibernation occurred in most of the food-deprived animals but, except for one individual, not in animals provided with food ad libitum.

摘要

本研究揭示了圈养的幼年理查森地松鼠（Spermophilus richardsoni）两个不同年龄组在一年时间里体重、食物摄入量和活动之间的相互关系。2. 在最初圈养期间和冬眠后阶段，体重增加与食物摄入量和活动量的增加有关。3. 冬眠前季节体重保持高且稳定与食物摄入量“自愿”减少、标准代谢率和活动量下降有关。这些变化发生在光周期和温度变化之前。4. 大多数食物匮乏的动物进入了冬眠，但除了一只个体外，自由进食的动物没有进入冬眠。