北美豪猪（Erethizon dorsatum bruneri）对环境温度降低和风速增加的体温调节反应。

Thermoregulatory responses of the North American porcupine (Erethizon dorsatum bruneri) to decreasing ambient temperature and increasing wind speed.

作者信息

DeMatteo K E, Harlow H J

机构信息

Saint Louis Zoo, Research Center, Forest Park, MO 63110, USA.

出版信息

Comp Biochem Physiol B Biochem Mol Biol. 1997 Mar;116(3):339-46. doi: 10.1016/s0305-0491(96)00256-8.

DOI:10.1016/s0305-0491(96)00256-8

PMID:9114494

Abstract

Average resting metabolic rate of five adult male porcupines (Erethizon dorsatum bruneri) was 0.23 ml O2/g.h +/- 0.007 SEM, between 10 degrees C (Tlc) and 25 degrees C, which is 70% of the value predicted by body mass. A Tb of 37.1 degrees C +/- 0.1 SEM was maintained between -10 degrees C and 25 degrees C. Calculated thermal conductance (between 6 degrees C and -10 degrees C) was 87% of the predicted value. There was no significant change in mean metabolic rate as a function of wind (up 4.3 m/s) at ambient temperatures (1 degree C and -5 degrees C) below their Tlc. Under these same ambient conditions, with and without wind, the skin surface and subcutaneous areas of the porcupine's rosette region exhibited marked temperature lability.

摘要

五只成年雄性北美豪猪（Erethizon dorsatum bruneri）在10摄氏度（Tlc）至25摄氏度之间的平均静息代谢率为0.23毫升氧气/克·小时±0.007标准误，这是根据体重预测值的70%。在-10摄氏度至25摄氏度之间，体温维持在37.1摄氏度±0.1标准误。计算得出的热传导率（在6摄氏度至-10摄氏度之间）为预测值的87%。在环境温度低于其Tlc（1摄氏度和-5摄氏度）时，随着风速增加（高达4.3米/秒），平均代谢率没有显著变化。在这些相同的环境条件下，无论有无风，豪猪玫瑰花结区域的皮肤表面和皮下区域都表现出明显的温度波动。