Paradox of the evolution of communication and of social interactivity.

作者: L. L. Cavalli-Sforza , M. W. Feldman

DOI: 10.1073/PNAS.80.7.2017

关键词: Computer scienceAltruism (biology)Constant termNuclear familyEconometricsConditional probabilityIf and only ifInteractivityGeneticsAssortative matingBottleneck

摘要: Abstract Communication between individuals of a species is likely to increase the capacity acquire skills useful for survival and propagation thus may confer important selective advantages. Since interaction occurs two or more individuals, process frequency dependent, analysis shows that communication cannot initially at reasonable rate when it limited random unrelated so abort stochastic reasons. However, this bottleneck removed if takes place in nuclear family among close relatives aggregation communicators because assortative mating meeting. Use individual conditional fitnesses we have introduced earlier permits an exact analysis. We show that, general, initial can be geometric only if, class models considered, probability communicator interacting with another contains positive constant term. In our discussion communication, cost factors act been omitted. model has generalized include cooperativeness, also altruism, competition, by introducing costs. There relationship these situations, same considerations about its resolution extend them. The given here are haploids but they diploids conclusions similar.

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