Abstract
Two models for the dynamics of predator populations without self-regulation are compared. In both models the relationship between resource density and feeding rate is of the Holling II-type, i.e. increasing towards an asymptotic value. The models differ with respect to the relationship between feeding rate and per capita rate of increase. In one of the models this relation is linear and in the other it is increasing at a diminishing rate. The properties of the two models are discussed and it is suggested that the second is more realistic. Furthermore, the second makes use of fewer parameters.
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