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Figure 4.--ESS-conditions in D-S subgame contrasting lethal defense (D) and defense (S) that induces conditional<br />

feeding aversion: [a] The parameter areas where D and S are ESSs are shaded (k > 0); and [b] Fitnesses of D and<br />

S as a function of the population frequency (r) of S when 0 < } < 1. T 2= unstable equilibrium; C, m, and e as in<br />

Fig. 1.<br />

32

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