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. 2014 Jan;10(1):20130879. doi: 10.1098/rsbl.2013.0879

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© 2014 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 1. — Effect of parasitism on community composition for IGP systems, with respect to relative competitive advantage of IGprey (intraspecific competition ratio, IGpredator : IGprey: α₂α₂/α₁α₁; a–d) and cannibalism (k₁ = k₂; e,f); (a) without parasite; (b) parasite with density-only (mortality) effects (Ω₁ = 0.1, Ω₂ = 0.3); (c,d) with trait-only effects (c: ρ₁ = ρ₂ = 0.5; d: ρ₁ = ρ₂ = 2.0; Ω₁ = Ω₂ = 0); (e) density-only effects (Ω₁ = 0.1, Ω₂ = 0.3); (f) density and trait effects (Ω₁ = 0.1, Ω₂ = 0.3, ρ₁ = ρ₂ = 0.5). Solid lines: equilibrium population density (m⁻²) (blue, IGprey; red, IGpredator); dashed lines: %parasite prevalence (blue, %prevalence in IGprey; red, %prevalence in IGpredator; grey, %prevalence across both hosts). Parameter subscripts: 1, IGprey; 2, IGpredator.