Individual variation and repeatability of basal metabolism in the bank vole,<i>Clethrionomys glareolus</i>

Labocha, Marta K.; Sadowska, Edyta T.; Baliga, Katarzyna; Semer, Aleksandra K.; Koteja, Paweł

doi:10.1098/rspb.2003.2612

Cited by 86 publications

(98 citation statements)

References 48 publications

(48 reference statements)

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“…[35][36][37]), mammals (e.g. [51,52]) and chickens [53], but the static scaling exponent of metabolic rate is almost isometric in adult pied flycatchers Ficedula hypoleuca [54], and metabolic rate and body mass are independent in some (e.g. [55]), but not all (e.g.…”

Section: Discussion (A) Allometric Scaling Of Metabolism and The Benementioning

confidence: 99%

Why does offspring size affect performance? Integrating metabolic scaling with life-history theory

2015

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Within species, larger offspring typically outperform smaller offspring. While the relationship between offspring size and performance is ubiquitous, the cause of this relationship remains elusive. By linking metabolic and life-history theory, we provide a general explanation for why larger offspring perform better than smaller offspring. Using high-throughput respirometry arrays, we link metabolic rate to offspring size in two species of marine bryozoan. We found that metabolism scales allometrically with offspring size in both species: while larger offspring use absolutely more energy than smaller offspring, larger offspring use proportionally less of their maternally derived energy throughout the dependent, non-feeding phase. The increased metabolic efficiency of larger offspring while dependent on maternal investment may explain offspring size effects-larger offspring reach nutritional independence (feed for themselves) with a higher proportion of energy relative to structure than smaller offspring. These findings offer a potentially universal explanation for why larger offspring tend to perform better than smaller offspring but studies on other taxa are needed.

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Section: Discussion (A) Allometric Scaling Of Metabolism and The Benementioning

confidence: 99%

Why does offspring size affect performance? Integrating metabolic scaling with life-history theory

2015

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“…The repeatability of locomotor traits and certain indices of sub-maximal metabolism have been documented in a number of studies (e.g. Huey and Dunham, 1987;Labocha et al, 2004;Rønning et al, 2005;Szafranska et al, 2007). However, there have been few examinations of the repeatability of maximal aerobic performance (Hayes and Chappell, 1990;Chappell et al, 1996;Evans and Rose, 2010), and even fewer in wild populations (Chappell et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Aerobic capacity in wild satin bowerbirds: repeatability and effects of age, sex and condition

Chappell

Savard

Siani

et al. 2011

Journal of Experimental Biology

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SUMMARYIndividual variation in aerobic capacity has been extensively studied, especially with respect to condition, maturity or pathogen infection, and to gain insights into mechanistic foundations of performance. However, its relationship to mate competition is less well understood, particularly for animals in natural habitats. We examined aerobic capacity [maximum rate of O 2 consumption (V O2,max ) in forced exercise] in wild satin bowerbirds, an Australian passerine with a non-resource based mating system and strong intermale sexual competition. We tested for repeatability of mass and V O2,max , differences among age and sex classes, and effects of several condition indices. In adult males, we examined interactions between aerobic performance and bower ownership (required for male mating success). There was significant repeatability of mass and V O2,max within and between years, but between-year repeatability was lower than within-year repeatability. V O2,max varied with an overall scaling to mass 0.791 , but most variance in V O2,max was not explained by mass. Indicators of condition (tarsus and wing length asymmetry, the ratio of tarsus length to mass) were not correlated to V O2,max . Ectoparasite counts were weakly correlated to V O2,max across all age-sex classes but not within any class. Adult males, the cohort with the most intense levels of mating competition, had higher V O2,max than juvenile birds or adult females. However, there was no difference between the V O2,max of bower-owning males and that of males not known to hold bowers. Thus one major factor determining male reproductive success was not correlated to aerobic performance.

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“…However, the narrow-sense heritability of RMR has been shown to be low ( Nespolo et al 2003;Labocha et al 2004), and there is evidence that environmental effects early in development may influence metabolic rate at adulthood ( Verhulst et al 2006). The most probable cause of such an effect is the pattern of nutrition during growth and development.…”

Section: Introductionmentioning

confidence: 99%

“…up to 50% in both endotherms and ectotherms; Cruz-Neto & Bozinovic 2004;Steyermark et al 2005) and so has profound effects on energy budgets. It is therefore surprising that a trait likely to be under strong selection pressure shows substantial variation among individuals within a species, with some individuals respiring at three times the RMR of others of the same size and sex (Cruz-Neto & Bozinovic 2004;Labocha et al 2004;Steyermark et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Early nutrition and phenotypic development: ‘catch-up’ growth leads to elevated metabolic rate in adulthood

et al. 2008

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Resting metabolic rate (RMR) is responsible for up to 50% of total energy expenditure, and so should be under strong selection pressure, yet it shows extensive intraspecific variation and a low heritability. Environmental conditions during growth are thought to have long-term effects through 'metabolic programming'. Here we investigate whether nutritional conditions early in life can alter RMR in adulthood, and whether this is due to growth acceleration or the change in diet quality that prompts it. We manipulated dietary protein levels during the main growth period of zebra finches (Taeniopygia guttata) such that an episode of poor nutrition occurred with and without growth acceleration. This produced different growth trajectories but a similar adult body mass. Only the diet that induced growth acceleration resulted in a significant (19%) elevation of RMR at adulthood, despite all the birds having been on the same diet after the first month. This is the first study to show that dietary-induced differences in growth trajectories can have a long-term effect on adult metabolic rate. It suggests that modification of metabolic efficiency may be one of the mechanisms mediating the observed long-term costs of accelerated growth, and indicates links between early nutrition and the metabolic syndrome.

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Individual variation and repeatability of basal metabolism in the bank vole,Clethrionomys glareolus

Cited by 86 publications

References 48 publications

Why does offspring size affect performance? Integrating metabolic scaling with life-history theory

Why does offspring size affect performance? Integrating metabolic scaling with life-history theory

Aerobic capacity in wild satin bowerbirds: repeatability and effects of age, sex and condition

Early nutrition and phenotypic development: ‘catch-up’ growth leads to elevated metabolic rate in adulthood

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