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Phase Transitions and Phase Diagram of the Island Model with Migration
We investigate the evolutionary dynamics and the phase transitions of the island model which consists of subdivided populations of individuals...
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Evolutionary dynamics with migration by using the fast-mode elimination method
We investigate the evolutionary dynamics of a Moran model which consists of subdivided populations of individuals confined to a set of islands. In...
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Climate change alters diffusion of forest pest: A model study
Population dynamics with spatial information is applied to understand the spread of pests. We introduce a model describing how pests spread in...
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Enhancement of robustness by mutation in the host-parasite coevolution
We investigate the host-parasite coevolution with mutation in a single-locus system. We use the single-locus quasi-species model with a...
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Scaling of nestedness in complex networks
Nestedness characterizes the linkage pattern of networked systems, indicating the likelihood that a node is linked to the neighbors of the nodes with...
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Consensus and ordering in language dynamics
We consider two social consensus models, the AB-model and the Naming Game restricted to two conventions, which describe a population of interacting...
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Wavy fronts in reaction-diffusion systems with cross advection
Bistable reaction-diffusion systems of activator-inhibitor type with cross advection are studied analytically and numerically using a piecewise...
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Pattern formation, social forces, and diffusion instability in games with success-driven motion
A local agglomeration of cooperators can support the survival or spreading of cooperation, even when cooperation is predicted to die out according to...
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Editorial: Ecological complex systems
Main aim of this topical issue is to report recent advances in noisy nonequilibrium processes useful to describe the dynamics of ecological systems...
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Evidence for the Gompertz curve in the income distribution of Brazil 1978–2005
This work presents an empirical study of the evolution of the personal income distribution in Brazil. Yearly samples available from 1978 to 2005 were...
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Verhulst model with Lévy white noise excitation
The transient dynamics of the Verhulst model perturbed by arbitrary non-Gaussian white noise is investigated. Based on the infinitely divisible...
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Dynamical inference of hidden biological populations
Population fluctuations in a predator-prey system are analyzed for the case where the number of prey could be determined, subject to measurement...
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Assessing the quality of stochastic oscillations
We analyze the relationship between the macroscopic and microscopic descriptions of two-state systems, in particular the regime in which the...
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Damage spreading in 2-dimensional isotropic and anisotropic Bak-Sneppen models
We implement the damage spreading technique on 2-dimensional isotropic and anisotropic Bak-Sneppen models. Our extensive numerical simulations show...
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How bad is to be slow-reacting?
We consider a simple-model population, whose individuals react with a certain delay to temporal variations of their habitat. We investigate the...
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Drift reversal in asymmetric coevolutionary conflicts: influence of microscopic processes and population size
The coevolutionary dynamics in finite populations currently is investigated in a wide range of disciplines, as chemical catalysis, biological...
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Anomalous finite-size effects in the Battle of the Sexes
The Battle of the Sexes describes asymmetric conflicts in mating behavior of males and females. Males can be philanderer or faithful, while females...
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Bounding the quality of stochastic oscillations in population models
We analyze general two-species stochastic models, of the kind generally used for the study of population dynamics. Although usually defined a priori ,...
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Mechanisms for similarity based cooperation
Cooperation based on similarity has been discussed since Richard Dawkins introduced the term “green beard” effect. In these models, individuals...
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Noise-controlled slow–fast oscillations in predator–prey models with the Beddington functional response
The influence of environmental fluctuations (modeled as a multiplicative dichotomous noise) on predator–prey interaction is studied using a...