Ecology, Evolution and Energetics: A Study in Metabolic Adaptation

Peter Calow

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    106 Scopus citations


    This chapter discusses physiological adaptation in the organism. Organisms are treated as machines, energy transformers that are designed to work in a certain way and at certain levels of efficiency under particular ecological conditions. The concept of design is central to biological explanation and within this framework, this chapter discusses two general issues: the design criteria used in the evolution of metabolic machines and the various metabolic strategies important in the operation of these machines. The chapter discusses the way organisms work as energy transformers and the circumstances under which they transform energy and the reason they work in the way they do. In the first instance, one is concerned with the operation of organisms in ecosystems and only in a subsidiary way with the operation of organisms as part of ecosystem metabolism. The latter is, of course, the more usual problem and discusses “ecological energetic”.

    Original languageEnglish (US)
    Pages (from-to)1-62
    Number of pages62
    JournalAdvances in Ecological Research
    Issue numberC
    StatePublished - Jan 1 1977

    Bibliographical note

    Funding Information:
    The experimental work on planaria, described in Sections XI and XIV, was supported by a Natural Environmental Research Council grant, no. GR3/2318.


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