Industrial energy use and the human life history

被引：18

作者：

Burger, Oskar ^{[1
]}

DeLong, John P. ^{[2
]}

Hamilton, Marcus J. ^{[3
,4
,5
]}

机构：

[1] Max Planck Inst Demog Res, D-18057 Rostock, Germany

[2] Yale Univ, Dept Ecol & Evolutionary Biol, New Haven, CT 06520 USA

[3] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA

[4] Univ New Mexico, Dept Anthropol, Albuquerque, NM 87131 USA

[5] Santa Fe Inst, Santa Fe, NM 87501 USA

来源：

SCIENTIFIC REPORTS | 2011年 / 1卷

关键词：

DEMOGRAPHIC-TRANSITION; FERTILITY; MORTALITY; LIMITS;

D O I：

10.1038/srep00056

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 demographic rates of most organisms are supported by the consumption of food energy, which is used to produce new biomass and fuel physiological processes. Unlike other species, modern humans use 'extra-metabolic' energy sources acquired independent of physiology, which also influence demographics. We ask whether the amount of extra-metabolic energy added to the energy budget affects demographic and life history traits in a predictable way. Currently it is not known how human demographics respond to energy use, and we characterize this response using an allometric approach. All of the human life history traits we examine are significant functions of per capita energy use across industrialized populations. We find a continuum of traits from those that respond strongly to the amount of extra-metabolic energy used, to those that respond with shallow slopes. We also show that the differences in plasticity across traits can drive the net reproductive rate to below-replacement levels.

引用

页数：7

共 34 条

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