Basal metabolic rate in migratory waders:: intra-individual, intraspecific, interspecific and seasonal variation
Basal metabolic rate in migratory waders:: intra-individual, intraspecific, interspecific and seasonal variation
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DOI：
10.1046/j.0269-8463.2001.00549.x
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发表时间：
2001-08-01
影响因子：
5.2
通讯作者：
Lindström, Å
中科院分区：
文献类型：
--
作者：
Kvist, A;Lindström, Å
1. 测量了瑞典南部秋季迁徙期间 19 个物种的 36 只成年涉水鸻和 119 只幼年涉水鸻的基础代谢率 (BMR)。2．与文献数据比较发现，北极地区幼鱼BMR普遍低于迁徙开始时，略高于非洲越冬地。3．季节差异可能反映了当地的生理适应，也可能反映了由于生长而从迁徙前的高水平逐渐下降。我们的数据与这样的观点相矛盾：迁徙期间基础代谢率较高，这是为了适应普遍较高水平的能量消耗。4。异速生长指数（按体重计算 BMR）在个体内 (1.19) 和物种内 (1.82) 显着高于物种间 (0.62).5。高个体内指数表明非脂肪组织具有较高的代谢活性，参与了迁徙停留期间的质量变化。6．高种内指数表明，具有高代谢活性的组织对个体体重变化的贡献不成比例，或者较大个体的某些组织的质量特定代谢率较高。
1. Basal metabolic rates (BMR) were measured in 36 adult and 119 juvenile waders of 19 species on autumn migration in southern Sweden.2. Ina comparison with literature data, it was found that juvenile BMR was generally lower than at the onset of migration in the Arctic and slightly higher than on African wintering grounds.3. The seasonal differences may reflect local physiological adaptations or possibly a gradual decline from high premigratory levels due to growth. Our data contradict the idea that BMR is high during migration as an adaptation to generally high levels of energy expenditure.4. The allometric exponent, scaling BMR to body mass, was significantly higher within individuals (1.19) and within species (1.82) than among species (0.62).5. The high intra-individual exponent indicates that non-fat tissues, with a high metabolic activity, are involved in the mass changes during migratory stopover.6. The high intraspecific exponent indicates that tissues with a high metabolic activity contributed disproportionately to variation in body mass among individuals or that larger individuals had elevated mass specific metabolic rates of some tissues.