The Allometry of Growth and Reproduction
The technique of allometry investigates the effects of size on such variables as food intake, energy requirements, growth rates and age at first reproduction. This book brings together much of what is known about the consequences of size and provides a new and mathematically rigorous framework within which many quantitative predictions are made and tested using published and unpublished data. Explanations are proposed for many previously unexplained phenomena such as why in some species females are thousands of times heavier than males, whereas in no species are males more than about eight times heavier than females. The models presented afford a synthesis of the effects of size and open up pathways for further theoretical investigation and experimental testing. Care has been taken to give verbal presentations of all the mathematical conclusions to ensure that the text is widely intelligible.
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2 The scaling of average daily metabolic rate and energy intake
3 Why do larger species invest relatively less in their offspring?
4 The intraspecific relationship of parental investment to female body weight
5 Growth and productivity
6 Quantitative models of body size
7 Sexual dimorphism in body size
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ADMR adult female body allometric animals aphids assortative mating assumption average daily metabolic basal metabolic rate behaviour Belovsky Bergmann’s rule Biol birds Bufo Cambridge Chapter Clutton-Brock & Harvey conﬁdence limits Constant correlation daily metabolic rate degree of sexual dependence dimorphism in body Drosophila melanogaster Ecology energetic energy assimilation energy available energy budget energy intake Equation exponent equal exponent relating fecundity female body weight ﬁrst ﬁsh Decreases growth rates herbivores home range homeotherms I/Vm increase interspeciﬁc scaling isopods Kendeigh larger males larger species log body weight Mace male body weight male reproductive success mammals mating maximize measured Megalops cyprinoides metabolic requirements non-reproductive energy requirements Oecologia offspring optimal organism parental investment pinnipeds poikilotherms polygynous predicted primates proportional r-selected red deer relationship Ricklefs scale interspeciﬁcally scale on body sexual dimorphism signiﬁcant signiﬁcantly slope of log socionomic speciﬁc suggested surface area surface area/volume arguments taxa trying to reproduce unit values