Relationship among body mass, metabolic rate and the intrinsic rate of natural increase in mammals

Hennemann, Willard W.

doi:10.1007/bf00378224

Cited by 150 publications

(120 citation statements)

References 43 publications

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“…High resting metabolic rates have also been linked to decreased longevity (Manini, 2010;Speakman, 2005). In addition, basal metabolic rates (BMRs) are positively correlated to reproduction, such that species with high BMRs often have higher reproductive rates (Hennemann, 1983). Therefore, at the interspecific level, variation in metabolic rates may mediate important tradeoffs between reproduction and survival.…”

Section: Introductionmentioning

confidence: 99%

Developmental stress has sex-specific effects on nestling growth and adult metabolic rates but no effect on adult body size or body composition in song sparrows

Schmidt

MacDougall‐Shackleton

2012

Journal of Experimental Biology

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SUMMARYVariation in the prenatal and postnatal environments can have long-term effects on adult phenotype. In humans and other animals, exposure to stressors can lead to long-term changes in physiology. These changes may predispose individuals to disease, especially disorders involving energy metabolism. In addition, by permanently altering metabolic rates and energy requirements, such effects could have important fitness consequences. We determined the effects of early-life food restriction and corticosterone (CORT) treatment on growth and adult body size, body composition (assessed via quantitative magnetic resonance) and metabolic rates in the song sparrow, Melospiza melodia. Nestlings were hand-raised in captivity from 3days of age. Treatments (ad libitum food, food restriction or CORT treatment) lasted from day 7 to day 60. Both experimental treatments had sex-specific effects on growth. In the nestling period, CORT-treated males weighed more than controls, whereas CORTtreated females weighed less than controls. Food-restricted males weighed the same as controls, whereas food-restricted females weighed less than controls. Both experimental treatments also had sex-specific effects on standard metabolic rate (SMR). Females exposed to food restriction or CORT treatment during development had higher SMRs in adulthood than control females, but neither stressor affected SMR in males. There were no effects of either treatment on adult body size, body composition (lean or fat mass) or peak metabolic rate. Therefore, early-life stress may have sex-specific programming effects on metabolic rates and energy expenditure in song sparrows. In addition, both treatments affected nestling growth in a manner that exaggerated the typical sex difference in nestling mass, which could provide male nestlings with a competitive advantage over their sisters when developing in a poor-quality environment.

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Section: Introductionmentioning

confidence: 99%

Developmental stress has sex-specific effects on nestling growth and adult metabolic rates but no effect on adult body size or body composition in song sparrows

Schmidt

MacDougall‐Shackleton

2012

Journal of Experimental Biology

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“…Although BMR, and RMRt, were defined with the objective of establishing a standardised measurement for metabolism, they are highly variable between different species, even of the same body mass (e.g. Hemmingsen, 1960;Dawson and Hulbert, 1970;McNab, 1980;McNab, 2002;Henneman, 1983;Hayssen, 1984;Hayssen and Lacy, 1985;Ricklefs et al, 1996;Lovegrove, 2000).…”

Section: Introductionmentioning

confidence: 99%

Limits to sustained energy intake XII: is the poor relation between resting metabolic rate and reproductive performance because resting metabolism is not a repeatable trait?

Duarte

Vaanholt

Sinclair

et al. 2010

Journal of Experimental Biology

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SUMMARYMany studies have investigated the consequences of individual variation in resting metabolic rate at thermoneutrality (RMRt) on reproductive performance. Despite strong theoretical reasons for expecting such an association, results have generally been disappointing. A fundamental assumption of these studies is that RMRt is a repeatable trait. We examined repeatability of RMRt in female MF1 mice over short (15days apart; N238) and long intervals (110days apart; N33). In the long-term experiment, after the first RMRt measurement, females were separated in two groups: the first was kept virgin (N16); the second was allowed to breed (N17) and measured 15days after they had weaned their pups. We also examined the association between RMRt and reproduction. We used Pearson's correlation (r) and intraclass correlation coefficients () to estimate repeatability. There was a strong effect of body mass on RMRt for all measurements. Over the short interval, repeatability was significant for body mass (r0.86; 0.86), RMRt (r0.68; 0.68,) and residual-RMRt (r0.58; 0.58). Over long intervals, repeatability of residual-RMRt was high in virgin females (r0.59; 0.60), but not in the breeders (r0.38; 0.39); body mass was repeatable only for non-breeders measured by r (r0.55). There was no significant correlation between RMRt or residual-RMRt and litter size or litter mass. In conclusion, RMRt and residual-RMRt are highly repeatable traits in virgin MF1 female mice. The lack of association between nonreproductive RMRt and reproductive performance in MF1 mice does not come about because of its poor repeatability.Key words: Mus musculus, repetability, resting metabolic rate, mouse, reproductive performance. 1989;Weiner, 1992;Peterson et al., 1990;Hammond and Diamond, 1992;Hammond and Diamond, 1997;Lovegrove, 2000). Although the first ideas were that SusMR and BMR might be linked via the energy acquisition system, it was later recognized that links between the two might also come about because of commonality in the demands of the tissues where energy is ultimately utilized. If the tissues involved in energy utilisation have high rates of energy demand in the basal state, then a similar functional linkage between tissues, BMR (RMRt), SusMR and SusEI would emerge. THE JOURNAL OF EXPERIMENTAL BIOLOGY279 Repeatability of RMRLactation is one of the most energetically demanding periods in the lives of small rodents (reviewed by Speakman, 2008;Naya et al., 2008). Many studies have been performed comparing RMRt of lactating animals to non-breeding individuals (Hammond and Diamond, 1992;Hammond et al., 1996;Konarzewski and Diamond, 1995;Rogowitz and McClure, 1995;Rogowitz, 1998;Speakman and McQueenie, 1996;Johnson and Speakman, 2001;Johnson et al., 2001a;Johnson et al., 2001b;Johnson et al., 2001c;Król and Speakman, 2003a;Król and Speakman, 2003b;Król et al., 2003;Król et al., 2007). These studies are consistent with the idea that BMR (RMRt) and SusMR (SusEI) should be closely associated. Moreover, this association i...

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“…It is known that r max , which reflects a population's growth rate under optimal conditions, is negatively correlated with body size (Hennemann 1983). Here we ask whether in eutherian mammals this correlation is actually caused by the effect of brain size.…”

Section: Introductionmentioning

confidence: 99%

Why are there so few smart mammals (but so many smart birds)?

2008

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The expensive brain hypothesis predicts an interspecific link between relative brain size and life-history pace. Indeed, animals with relatively large brains have reduced rates of growth and reproduction. However, they also have increased total lifespan. Here we show that the reduction in production with increasing brain size is not fully compensated by the increase in lifespan. Consequently, the maximum rate of population increase (r max ) is negatively correlated with brain mass. This result is not due to a confounding effect of body size, indicating that the wellknown correlation between r max and body size is driven by brain size, at least among homeothermic vertebrates. Thus, each lineage faces a 'grey ceiling', i.e. a maximum viable brain size, beyond which r max is so low that the risk of local or species extinction is very high. We found that the steep decline in r max with brain size is absent in taxa with allomaternal offspring provisioning, such as cooperatively breeding mammals and most altricial birds. These taxa thus do not face a lineage-specific grey ceiling, which explains the far greater number of independent origins of large brain size in birds than mammals. We also predict that (absolute and relative) brain size is an important predictor of macroevolutionary extinction patterns.

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Relationship among body mass, metabolic rate and the intrinsic rate of natural increase in mammals

Cited by 150 publications

References 43 publications

Developmental stress has sex-specific effects on nestling growth and adult metabolic rates but no effect on adult body size or body composition in song sparrows

Developmental stress has sex-specific effects on nestling growth and adult metabolic rates but no effect on adult body size or body composition in song sparrows

Limits to sustained energy intake XII: is the poor relation between resting metabolic rate and reproductive performance because resting metabolism is not a repeatable trait?

Why are there so few smart mammals (but so many smart birds)?

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