| 来源类型 | Article
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| 规范类型 | 其他
|
| DOI | 10.1007/s11538-014-9994-y
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| Evolution of density-dependent cooperation. |
| Seppänen A; Parvinen K
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| 发表日期 | 2014
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| 出处 | Bulletin of Mathematical Biology 76 (12): 3070-3087
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| 出版年 | 2014
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| 语种 | 英语
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| 摘要 | Cooperation is surprisingly common in life despite of its vulnerability to selfish cheating, i.e. defecting. Defectors do not contribute to common resources but take the advantage of cooperators' investments. Therefore, the emergence and maintenance of cooperation have been considered irrational phenomena. In this study, we focus on plastic, quantitative cooperation behaviour, especialy on its evolution. We assume that individuals are capable to sense the population density in their neighbourhood and adjust their real-valued invesments on public goods based on that information. The ecological setting is described with stochastic demographic events, e.g. birth and death, occurring at individual level. Individuals form small populations, which further constitute a structured metapopulation. For evolutionary investigations, we apply the adaptive dynamics framework. The cost of cooperative investment is incorporated into the model in two ways, by decreasing the birth rate or by increasing the death rate. In the first case, density-dependent cooperation evolves to be a decreasing function of population sie as expected. In the latter case, however, the density-dependent cooperative investment can have a qualitatively different form as it my evolve to be highest in intermediate-sized populations. Indeed, we emphasize that some details in modelling may have a significant impact on the results obtaned. |
| 主题 | Evolution and Ecology (EEP)
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| 关键词 | Adaptive dynamics
structured metapopulation
public-goods cooperation
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| URL | http://pure.iiasa.ac.at/id/eprint/10767/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 引用统计 |
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/129943
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推荐引用方式
GB/T 7714 |
Seppänen A,Parvinen K. Evolution of density-dependent cooperation.. 2014.
|
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