Letter | Published:

A Controversial Equation in Population Ecology


IT is a fundamental rule of physical equations that the two sides must balance in terms of the dimensions ascribed to the magnitudes that they represent1. The same rule should hold when we try to apply physical equations to biological processes.

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  1. 1

    Focken, C. M., “Dimensional Methods and their Applications” (London, Edward Arnold & Co., 1953).

  2. 2

    Varley, G. C., Nature, 183, 911 (1959).

  3. 3

    Nicholson, A. J., Nature, 183, 911 (1959).

  4. 4

    Nicholson, A. J., Aust. J. Zool., 2, 1 (1954).

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