Metabolism During Growth in a Common Pigeon

Riddle, Oscar; Nussmann, Theodora C.; Benedict, Fräncis G.

doi:10.1152/ajplegacy.1932.101.2.251

Cited by 17 publications

(7 citation statements)

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“…Several studies in diverse species of plants [193], invertebrates [103,105,136,219,220,222] and vertebrates [218,221,223,224] have shown that increased growth rate is associated with steeper ontogenetic scaling of metabolic rate (slopes often approaching 1) (also see 19,20,98]. This support involves not only numerous correlative analyses, but also multiple experimental manipulations.…”

Section: Resource-demand Modelsmentioning

confidence: 98%

“…Most of these explanations (including DEB theory) consider how changes in growth rate during ontogeny affect the scaling of metabolic rate [19,85,98,103,105,136,193,[218][219][220][221]. As with SC models, growth-based RD explanations of metabolic scaling originated in the 1930s and 1940s ( [222][223][224]; reviewed in [20]), but most modern investigators appear to be unaware of this work.…”

Section: Resource-demand Modelsmentioning

confidence: 99%

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Rediscovering and Reviving Old Observations and Explanations of Metabolic Scaling in Living Systems

Glazier

2018

Systems

112

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Why the rate of metabolism varies (scales) in regular, but diverse ways with body size is a perennial, incompletely resolved question in biology. In this article, I discuss several examples of the recent rediscovery and (or) revival of specific metabolic scaling relationships and explanations for them previously published during the nearly 200-year history of allometric studies. I carry out this discussion in the context of the four major modal mechanisms highlighted by the contextual multimodal theory (CMT) that I published in this journal four years ago. These mechanisms include metabolically important processes and their effects that relate to surface area, resource transport, system (body) composition, and resource demand. In so doing, I show that no one mechanism can completely explain the broad diversity of metabolic scaling relationships that exists. Multi-mechanistic models are required, several of which I discuss. Successfully developing a truly general theory of biological scaling requires the consideration of multiple hypotheses, causal mechanisms and scaling relationships, and their integration in a context-dependent way. A full awareness of the rich history of allometric studies, an openness to multiple perspectives, and incisive experimental and comparative tests can help this important quest.

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Section: Resource-demand Modelsmentioning

confidence: 98%

Section: Resource-demand Modelsmentioning

confidence: 99%

Rediscovering and Reviving Old Observations and Explanations of Metabolic Scaling in Living Systems

Glazier

2018

Systems

112

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“…RD theory has focused on metabolic demand not only at the tissue level, but also at the whole-body level, including energy-expensive processes such as growth (production), locomotion, and thermoregulation (reviewed in [18,163]). The effect of growth rate on ontogenetic metabolic scaling has been discussed for over 80 years beginning with studies by Teissier [164], Riddle et al [165] and Kibler and Brody [166] showing that the metabolic scaling exponent (b) is positively correlated with growth rate. Although most general metabolic scaling theories have ignored the energetic costs of growth, DEB theory uses this mechanism to explain intraspecific ontogenetic metabolic scaling relationships [66,67].…”

Section: Resource Demand (Rd) Modelsmentioning

confidence: 99%

“…The body-mass scaling of various energy-demanding processes may affect the scaling of metabolism supporting them. For example, numerous studies have shown that growth rate can affect the scaling of metabolic rate, including several largely forgotten studies published during the early 1900s [164][165][166] and many more since then (e.g., [341,342] and others reviewed in [18,163]). Rapid growth can explain near isometric metabolic scaling observed during early ontogeny [18,[341][342][343][344], and progressively slower growth can help explain allometric metabolic scaling later in ontogeny [18,52,332,342] in many kinds of animals and plants, though SA, RT and SC theory can explain these biphasic shifts, as well (see Sections 3.1-3.3 and 5.1-5.3).…”

Section: Resource Demand Theorymentioning

confidence: 99%

Metabolic Scaling in Complex Living Systems

Glazier

2014

Systems

152

397

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In this review I show that four major kinds of theoretical approaches have been used to explain the scaling of metabolic rate in cells, organisms and groups of organisms in relation to system size. They include models focusing on surface-area related fluxes of resources and wastes (including heat), internal resource transport, system composition, and various processes affecting resource demand, all of which have been discussed extensively for nearly a century or more. I argue that, although each of these theoretical approaches has been applied to multiple levels of biological organization, none of them alone can fully explain the rich diversity of metabolic scaling relationships, including scaling exponents (log-log slopes) that vary from ~0 to >1. Furthermore, I demonstrate how a synthetic theory of metabolic scaling can be constructed by including the context-dependent action of each of the above modal effects. This "contextual multimodal theory" (CMT) posits that various modulating factors (including metabolic level, surface permeability, body shape, modes of thermoregulation and resource-transport, and other internal and external influences) affect the mechanistic expression of each theoretical module. By involving the contingent operation of several mechanisms, the "meta-mechanistic" CMT differs from most metabolic scaling theories that are deterministically mechanistic. The CMT embraces a systems view of life, and as such recognizes the open, dynamic nature and complex hierarchical and interactive organization of biological systems, and the importance of multiple (upward, downward and reciprocal) causation, biological regulation of resource supply and demand and their interaction, and contingent internal (system) and external (environmental) influences on metabolic scaling, all of which are discussed. I hope that my heuristic attempt at building a unifying theory of metabolic scaling will not only stimulate further testing of all of the various subtheories composing it, but also foster an appreciation that many current models are, at least in part, complementary or even synergistic, rather than antagonistic. Further exploration about how the scaling of the rates of metabolism

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“…) Thyroxine and adrenalirre are important in this >>chemicah regulation agairrst cold. When the importance of the thyroid gland in temperature regulation was realized, its yearly cycle gained attention: in birds it has been studied by RIDDLE & FISHER (1925), HAECK.ER ( , according to KENDEIGH 1934, RIDDLE & AL. (1932), KÜCHLER (1935, including the yellow bunting), and MILLER (1939) .…”

Section: B Adaptation To Idgh Temperaturesmentioning

confidence: 99%