High metabolic rates in running birds

被引：35

作者：

Bundle, MW ^{[1
]}

Hoppeler, H

Vock, R

Tester, JM

Weyand, PG

机构：

[1] Harvard Univ, Museum Comparat Zool, Bedford, MA 01730 USA

[2] Univ Bern, Dept Anat, CH-3000 Bern 9, Switzerland

来源：

NATURE | 1999年 / 397卷 / 6714期

关键词：

D O I：

10.1038/16173

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The ability to increase metabolic rate during locomotion has been important in the structural evolution and evolutionary success of both birds and mammals. Greater endurance capabilities are conferred directly by greater maximal metabolic rates, which vary between species. These maximal rates are known for many mammals1 but have not been determined for birds. We have measured oxygen consumption in a large flightless bird, the rhea, Rhea americana , while it was running on an inclined treadmill, and find an upper limit to aerobic metabolism that is 36 times greater than the minimum resting rate, a factorial increase exceeding that reported for nearly all mammals.

引用

页码：31 / 32

页数：2

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