生存环境改变对树麻雀体质量和基础代谢率的影响

The effect of living environment on basal metabolic rate and body mass in passer montanus

以实验室驯养4周的冬季树麻雀(passer montanus)为实验组,未驯养的冬季树麻雀为对照组.比较2组麻雀的体质量、体脂质量分数及基础代谢率(BMR).结果显示,生存压力的降低可引起树麻雀体质量、体脂质量分数和BMR的显著降低,生存能耗也随之降低,这是其对生存环境进行能量预算的结果.生存能耗的降低可为繁殖期即将增加的繁殖能耗提供保证,也是其繁殖成功的基础.

After they are domesticated for four weeks, measured the mass, body fat and basal metabolic rate （ BMR ） in the tree sparrows and control group. The results is that the decrease of live pressure could reduce the contents of body fat and BMR remarkably, viability consumption also decreases with it, this is the results of energy budgeting the living environment. The decrease of viability consumption insures to increase reproduce consuming during propagant period, and it is the basis of reproducing successfully.