Calculation and Use of Selectivity Coefficients of Feeding : Zooplankton Grazing
نویسنده
چکیده
Vanderploeg, H.A. and Scavia, D., 1979. Calculation and use of selectivity coefficients of feeding: zooplankton grazing. Ecol. Modelling, 7: 135--149. A straightforward method of calculating selectivity coefficients (Wii) of predation from raw data, mortality rates of prey, filtering rates, feeding rates and electivity indices is derived. Results from a comparison of selectivity coefficients for the copepod Diaptomus oregonensis grazing under a number of experimental conditions suggest that Wij's for sizeselective feeding are invariant, a conclusion also supported by the leaky-sieve model. Recommendations are made on how to use Wij's in linear and nonlinear feeding constructs for zooplankton and other animals.
منابع مشابه
SCAVIA and BRIAN
Scavia, D. and Eadie, B.J., 1976. The use of measurable coefficients in process formulations -zooplankton grazing. Ecol. Modelling, 2: 315--319. This paper redefines a construct previously used to model phytoplankton--zooplankton interactions in such a way as to permit the use of measurable quantities as construct coefficients. The new construct can use unaltered values of the half-saturation c...
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