Witters L R., Sievert L
Division of Biological Sciences, Emporia State University, 66801, Emporia, KS, USA
J Therm Biol. 2001 Jun;26(3):205-208. doi: 10.1016/s0306-4565(00)00043-7.
(1) We placed 12 toads (Bufo woodhousii) in linear thermal gradients with floor temperatures ranging from 10 to 40 degrees C and monitored body temperatures (T(b)'s) with chromega-alomega thermocouples interfaced with a datalogger. (2) We measured T(b)'s at 10min intervals over a 24h period in toads that had eaten an equivalent of 5% of their body mass or had fasted for 5 days. (3) The mean 24h T(b) did not differ significantly between the fed and fasted groups. (4) Hourly mean T(b)'s of fed toads differed significantly over the 24h, but those of fasted toads did not. Fed toads selected highest T(b)'s during late afternoon and evening.
(1) 我们将12只伍德豪斯蟾蜍（Bufo woodhousii）置于线性热梯度环境中，地面温度范围为10至40摄氏度，并用与数据记录器相连的铬镍铝热电偶监测其体温（T(b)）。(2) 在24小时内，我们每隔10分钟测量一次进食了相当于其体重5%食物的蟾蜍或禁食5天的蟾蜍的T(b)。(3) 喂食组和禁食组的24小时平均T(b)没有显著差异。(4) 喂食蟾蜍的每小时平均T(b)在24小时内有显著差异，但禁食蟾蜍的则没有。喂食蟾蜍在傍晚和晚上选择了最高的T(b)。
