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. 2017 Nov 20;137(1):33–50. doi: 10.1007/s12064-017-0257-y

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 7 — Phase diagrams following the evolution of the Hawk frequency and population size for the payoff-based and dynamics-based models for the parameters: $W = 8$ , $d = 0.85$ , $Ψ = 2.3$ . The frequency and density nullclines occupy different positions with respect to the same initial point in both cases, and the trajectories obtained are totally different