期刊
ECOLOGY LETTERS
卷 24, 期 2, 页码 219-226出版社
WILEY
DOI: 10.1111/ele.13633
关键词
Dynamic Energy Budget (DEB) theory; ecological efficiency; reproduction; somatic growth
类别
Research shows that the production efficiency of homeothermic populations can be as high or even higher than poikilothermic populations, with observed differences mainly due to different energy allocation and life-history strategies.
The idea that homeothermic populations have a much lower production efficiency than poikilothermic populations, because warm-blooded individuals exhibit a higher metabolic rate per gram of body weight, is widespread. Using Dynamic Energy Budget (DEB) theory, in combination with a modelling exercise based on empirical data for over 1000 different species, I show that this idea is wrong. Production efficiency of homeothermic individuals can be as high or even higher than that of poikilotherms. Differences observed are merely the result of different energy allocation and life-history strategies. Birds, for example have evolved to invest a large proportion of the assimilated energy in somatic growth and maintenance and to mature at a relatively large size. Therefore, their production efficiency as an adult is low. This low reproduction efficiency combined with a low mortality rate causes the low production efficiency of bird (and other homeothermic) populations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据