Continuous host mortality
Under size-dependent host mortality from a negative exponential feeding
rate by predators, increasing predator density failed to suppress
cumulative cercariae density at appreciable resource supply levels for
both algae (d–1) and detritus (mg C
L–1 d–1) (>= 0.05)
(Fig. 4). As seen before, high algal growth rates or detritus supply
rates promoted greater parasite output. Predators only effectively
suppressed cercariae output at unrealistic predator densities of 50 N
m–2 and > 20 N m–2for algae and detritus, respectively, shown on a log + 1 scale in Figure
4.