Figure 1 . Effect of nutrient enrichment (\(N_{\max}\)) and prey preference (\(p_{Z}\)) of zooplankton (\(Z\)) for edible phytoplankton (\(P_{E}\)) and parasitic fungi (\(F\)), on species biomass and stability. Panels (a-e) illustrate the mean equilibrium biomass [μgP·L-1] for (a) zooplankton \(Z\), (b) parasitic fungi \(F\), (c) edible phytoplankton \(P_{E}\), (d) inedible phytoplankton \(P_{I}\), and (e) freely available nutrient \(N\), white areas indicate the extinction of the respective species. The dash-dotted line (Hopf bifurcation boundary) separates the area of stable point equilibria (on the left) from the area with oscillatory behaviour (on the right). The optimal preference (\(p_{Z}^{*}\)) is only illustrated within the area of coexistence (\(N_{\max}>2.7\ \)μgP·L-1). Panel (f) shows the standard deviation of the mean biomass of zooplankton for regions with oscillatory behaviour.