The influence of the cost of growth on ectotherm metabolism
A new model of ectothermic growth and metabolism is proposed. This model differs from most earlier models in representing explicitly the contribution of the “cost of growth” to ectotherm metabolism. It is shown that the cost of growth may constitute between 17 and 29% of the metabolism of an “averag...
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| Veröffentlicht in: | Journal of theoretical biology 1983-04, Vol.101 (3), p.453-477 |
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| container_end_page | 477 |
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| container_title | Journal of theoretical biology |
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| creator | Parry, G.D. |
| description | A new model of ectothermic growth and metabolism is proposed. This model differs from most earlier models in representing explicitly the contribution of the “cost of growth” to ectotherm metabolism. It is shown that the cost of growth may constitute between 17 and 29% of the metabolism of an “average” ectotherm population. Furthermore, the metabolism of an “average” growing ectotherm may be between 40 and 79% greater than that of a non-growing ectotherm. As many environmental factors induce changes in metabolic rates of this magnitude, it is suggested that many factors which cause changes in metabolic rates do so indirectly by altering growth rates. In particular, it is suggested that body size, food availability and temperature often indirectly influence metabolic rates through their effects on growth rates, rather than by directly determining metabolic rates as has usually been assumed. |
| doi_str_mv | 10.1016/0022-5193(83)90150-9 |
| format | Article |
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| ispartof | Journal of theoretical biology, 1983-04, Vol.101 (3), p.453-477 |
| issn | 0022-5193 1095-8541 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adult Animals Body Weight Cattle Child Dogs Energy Metabolism Growth Humans Lipids - biosynthesis Models, Biological Oxygen Consumption Protein Biosynthesis Rats Temperature |
| title | The influence of the cost of growth on ectotherm metabolism |
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