Instability of defensive alliances in the predator-prey model on complex networks

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dc.creatorKim, Beom Jun
dc.creatorLiu, Jianbin
dc.creatorUm, Jaegon
dc.creatorLee, Sung-Ik
dc.date2005-10-07
dc.date.accessioned2026-07-07T06:44:10Z
dc.date.available2026-07-07T06:44:10Z
dc.descriptionA model of six-species food web is studied in the viewpoint of spatial interaction structures. Each species has two predators and two preys, and it was previously known that the defensive alliances of three cyclically predating species self-organize in two-dimensions. The alliance-breaking transition occurs as either the mutation rate is increased or interaction topology is randomized in the scheme of the Watts-Strogatz model. In the former case of temporal disorder, via the finite-size scaling analysis the transition is clearly shown to belong to the two-dimensional Ising universality class. In contrast, the geometric or spatial randomness for the latter case yields a discontinuous phase transition. The mean-field limit of the model is analytically solved and then compared with numerical results. The dynamic universality and the temporally periodic behaviors are also discussed.
dc.description5 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0510163
dc.identifierhttp://arxiv.org/abs/cond-mat/0510163
dc.identifierPhys. Rev. E 72, 041906 (2005)
dc.identifierdoi:10.1103/PhysRevE.72.041906
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102686
dc.subjectStatistical Mechanics
dc.subjectDisordered Systems and Neural Networks
dc.titleInstability of defensive alliances in the predator-prey model on complex networks
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