Rock-paper-scissors: Engineered population dynamics increase genetic stability
نویسندگان
چکیده
منابع مشابه
Stability and Evolution in Rock-paper-scissors Ecologies
Four aspects of rock-paper-scissors ecosystems are considered. In the first, the effects of variations in the population’s spatial structure are described. With a lattice-based spatial structure, three-species coexistence is unstable when dispersal is long-range, but becomes stable at a critical threshold as the dispersal distance is gradually reduced. A continuous-space model is constructed an...
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We study the oscillatory dynamics in the generic three-species rock-paper-scissors games with mutations. In the mean-field limit, different behaviors are found: (a) for high mutation rate, there is a stable interior fixed point with coexistence of all species; (b) for low mutation rates, there is a region of the parameter space characterized by a limit cycle resulting from a Hopf bifurcation; (...
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Dynamical mechanisms that can stabilize the coexistence or diversity in biology are generally of fundamental interest. In contrast to many two-strategy evolutionary games, games with three strategies and cyclic dominance like the rock-paper-scissors game (RPS) stabilize coexistence and thus preserve biodiversity in this system. In the limit of infinite populations, resembling the traditional pi...
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We analyze the replicator-mutator equations for the rock-paper-scissors game. Various graph-theoretic patterns of mutation are considered, ranging from a single unidirectional mutation pathway between two of the species, to global bidirectional mutation among all the species. Our main result is that the coexistence state, in which all three species exist in equilibrium, can be destabilized by a...
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In this paper we present an Alife-platform named Urdar aimed at investigating dynamics of ecosystems where species engage in cross-feeding, i.e. where metabolites are passed from one species to the next in a process of sequential degradation. This type of interactions are commonly found in microbial ecosystems such as bacterial consortia degrading complex compounds. We have studied this phenome...
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ژورنال
عنوان ژورنال: Science
سال: 2019
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aaw0542