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Energy Flow in Growth and Production.

Authors
  • Clarke, Andrew1
  • 1 British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, UK. Electronic address: [email protected]
Type
Published Article
Journal
Trends in ecology & evolution
Publication Date
Jun 01, 2019
Volume
34
Issue
6
Pages
502–509
Identifiers
DOI: 10.1016/j.tree.2019.02.003
PMID: 30832986
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Growth involves two flows of energy: the chemical energy in the monomers used to construct the macromolecules that comprise tissue (proteins, nucleic acids, lipid membranes), and the metabolic energy used to build those macromolecules. The metabolic costs of synthesising the macromolecules necessary to build tissue are well defined, and we have a robust estimate of the overall cost of growth for an individual ectotherm. At the population level the cost of production appears to be much greater for endotherms than ectotherms, the reasons for which are not fully understood. These uncertainties are important to resolve if we wish to accurately model the flow of energy through populations or ecosystems because simply scaling up from individual energetics may produce misleading results. Crown Copyright © 2019. Published by Elsevier Ltd. All rights reserved.

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