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红瘰疣螈的体温调节
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云南省科技强省重点项目(No.2007C0005Z1);云南省应用基础研究计划项目(No.2006C0029M);云南省教育厅重大项目(No.ZD2009007),云南省教育厅科学研究基金项目(No.06Y118B)


Thermoregulation in the Red Knobby Newt,Tylototriton shanjing
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    摘要:

    红瘰疣螈(Tylototriton shanjing)为我国Ⅱ级重点保护野生动物。本实验测定了在不同环境温度条件下红瘰疣螈体温及代谢率变化。结果表明,在10～35℃环境温度范围内红瘰疣螈体温(Tb)与环境温度(Ta)呈正相关,其直线回归方程为:Tb=3.99 0.86Ta(R2=0.99,P<0.01);其代谢率(MR)在15～30℃的环境温度范围内随环境温度的升高而升高,在35℃时,其代谢率由于体温过高而急剧降低;在15～35℃之间的6个温度条件下雄性代谢率的回归方程为:MR1=0.374 1-0.355 1Ta 0.113 9T2a-0.010 5T3a(R2=0.47,P<0.01,df1=3,df2=46);雌性代谢率的回归方程为:MR2=0.478 8-0.420 3Ta 0.130 4T2a-0.011 8T3a(R2=0.40,P<0.01,df1=3,df2=46)。不同于内热源动物的代谢特征,红瘰疣螈的体温调节表现出外热源动物的特点:其体温受环境影响较大,体温生理调节能力较弱。

    Abstract:

    Red knobby newt(Tylototriton shanjing) is listed as categrory Ⅱ of national key protected animals.Body temperatures and metabolic rates of the Red Knobby Newt were measured at different ambient temperatures.Results showed that there was a significantly positive correlation between body temperature(Tb) and ambient temperature(Ta),and the linear regression equation is Tb=3.99 0.86Ta(R2=0.99,P < 0.01);within the range of ambient temperatures from 15℃ to 30℃,metabolic rate increased with ambient temperature;Metabolic rate decreased dramatically at 35℃ or higher;Within the range of ambient temperatures from 15℃ to 35℃,regression equations for males and females were MR1=0.374 1-0.355 1Ta 0.113 9Ta2-0.010 5T3a(R2=0.47,P < 0.01,df1=3,df2=46) and MR2=0.478 8-0.420 3Ta 0.130 4T2a-0.011 8 T3a(R2=0.40,P < 0.01,df1=3,df2=46),respectively.The metabolic characteristics of red knobby newts were different from that of the endothermic animals.Their thermoregulation showed that the ambient temperaturehas significantly influenced body temperature,and the capability of the body temperature regulation is feebleness,which are typical of ectotherms.

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何丽娟,敬凯,王政昆,柳鹏飞,张麟,朱万龙,董文鸽.2010.红瘰疣螈的体温调节.动物学杂志,45(6):133-140.

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  • 收稿日期:2010-04-06
  • 最后修改日期:2010-07-07
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