CAJ | 학술논문

本实验采用封闭式流体压力呼吸计,测定了环境温度在5-34℃范围内北朱雀(Carpodacusroseus)、燕雀(Fringilla montifringilla)和白腰朱顶雀(Acanthisflammea)的耗氧量、热传导、体温等指标,探讨了其代谢产热特征.结果表明:在环境温度(Ta)为5-30℃的范围内,北朱雀的体温基本维持恒定,平均体温为40.46±0.10℃,热中性区为22.5-27.5℃,基础代谢率为4.30±0.08 ml O2/(g·h);环境温度在5-20℃范围内,代谢率(MR)与Ta呈负相关,回归方程为MR[ml O2/(g·h)]=9.34-0.21Ta(℃);在此范围内,北朱雀的热传导率最低且基本保持恒定,平均为0.24±0.00ml O2/(g·h·℃).在环境温度为5-34℃的范围内,燕雀的体温基本保持稳定,为40.40±0.11℃,热中性区为25 30℃,基础代谢率为4.19±0.05 ml O2/(g·h);环境温度在5-25℃范围内,MR与Ta的回归方程为:MR[mlO2/(g·h)]=11.64-0.29Ta(℃);在5-30℃内.燕雀的热传导最低,平均为0.29±0.01mlO2/(g·h·℃).白腰朱顶雀的热中性区为25-28℃,平均体温为40.48±0.11℃(5-34℃),最低代谢率为4.45±0.14mlO2/(g·h),最低热传导为0.30±0.01mlO2(g·h·℃).在5-25℃范围内，MR与Ta的回归方程为:MR[ml O2/(g·h)]=11.33-0.26Ta(℃).北朱雀、燕雀和朱顶雀的基本生物学特征为:较高的基础代谢率和体温,较低的下临界温度,较宽的热中性区和稍高的热传导率[动物学报50(3):357-363,2004].
본실험채용봉폐식류체압력호흡계,측정료배경온도재5-34℃범위내북주작(Carpodacusroseus)、연작(Fringilla montifringilla)화백요주정작(Acanthisflammea)적모양량、열전도、체온등지표,탐토료기대사산열특정.결과표명:재배경온도(Ta)위5-30℃적범위내,북주작적체온기본유지항정,평균체온위40.46±0.10℃,열중성구위22.5-27.5℃,기출대사솔위4.30±0.08 ml O2/(g·h);배경온도재5-20℃범위내,대사솔(MR)여Ta정부상관,회귀방정위MR[ml O2/(g·h)]=9.34-0.21Ta(℃);재차범위내,북주작적열전도솔최저차기본보지항정,평균위0.24±0.00ml O2/(g·h·℃).재배경온도위5-34℃적범위내,연작적체온기본보지은정,위40.40±0.11℃,열중성구위25 30℃,기출대사솔위4.19±0.05 ml O2/(g·h);배경온도재5-25℃범위내,MR여Ta적회귀방정위:MR[mlO2/(g·h)]=11.64-0.29Ta(℃);재5-30℃내.연작적열전도최저,평균위0.29±0.01mlO2/(g·h·℃).백요주정작적열중성구위25-28℃,평균체온위40.48±0.11℃(5-34℃),최저대사솔위4.45±0.14mlO2/(g·h),최저열전도위0.30±0.01mlO2(g·h·℃).재5-25℃범위내，MR여Ta적회귀방정위:MR[ml O2/(g·h)]=11.33-0.26Ta(℃).북주작、연작화주정작적기본생물학특정위:교고적기출대사솔화체온,교저적하림계온도,교관적열중성구화초고적열전도솔[동물학보50(3):357-363,2004].
We examined the physiological responses of pallas's rosy finches Carpodacus roseus, bramblings Fringillamontifringilla and common redpolls Acanthis flammea to temperature by measuring their metabolic rate (calculated fromoxygen consumption), body temperature and thermal conductance at a temperature range of 5 - 34℃. Oxygen consump-tion was measured using a closed circuit respirometer. The thermal neutral zones of pallas's rosy finches, bramblings andcommon redpolls were 22.5- 27.5℃ , 25- 30℃ and 25- 28℃ , respectively. The mean metabolic rates within thermal118% , 135 % and 191% of the expected value from their body mass, respectively. Mean body temperatures of pallas'srosy finches, bramblings and common redpolls were 40.46 ± 0.10℃ , 40.40 ± 0.11℃ and 40.48 ± 0.11℃ , respectively.Thermal conductances of pallas's rosy finches, bramblings and common redpolls were 0.24 ± 0.00, 0.29 ± 0.01 and 0.30mass. Below the lower critical temperature, the metabolic rate (MR) increased with declining ambient temperature ( Ta)0.26 Ta (℃) for common redpolls, respectively. The ecophysiological characteristics of these species are: high bodytemperature and metabolic rate, wide thermal neutral zone and low lower critical temperature and relatively high thermalconductance. These properties might make these species able to adapt to their environments and survive in relative cold ar-eas in summer [Acta Zoologica Sinica 50 (3): 357-363, 2004].