Study of a prey-predator dynamics under the simultaneous effect of toxicant and disease.
Sufficient and necessary condition for the permanence of periodic predator-prey system.
Systems of possibilistic regressions: a case study in ecological inference.
This work introduces how possibilistic regression can be used in the case of non symmetrical triangular membership functions, building a system of regressions, so that suitable restrictions for each particular problem can be incorporated. We apply this methodology to the problem of ecological inference, in particular to the estimation of the electoral transition matrix. An experimentation with several examples shows the benefits of the new approach.
Temporally Interruptive Interaction Allows Mutual Invasion of Two Competing Species Dispersing in Space
With a reaction-diffusion system, we consider the dispersing two-species Lotka-Volterra model with a temporally periodic interruption of the interspecific competitive relationship. We assume that the competition coefficient becomes a given positive constant and zero by turns periodically in time. We investigate the condition for the coexistence of two competing species in space, especially in the bistable case for the population dynamics without dispersion. We could find that the spatial coexistence,...
Teorie deterministického chaosu a některé její aplikace (2. část)
The discrete Beverton-Holt model with periodic harvesting in a periodically fluctuating environment.
The effect of impulsive diffusion on dynamics of a stage-structured predator-prey system.
The finite difference scheme for 3D mathematical modeling of a wood drying process.
The permanence and extinction of a discrete predator-prey system with time delay and feedback controls.
The population dynamics of conflict and cooperation.
The rate of satiation in a cooperative system
The role of delay in digestion of plankton by fish population: A fishery model.
The role of the incubation period in a disease model.
TRANSCAT DSS architecture and modelling services
Twin periodic solutions of predator-prey dynamic system on time scales.
Unravelling ecological analysis.
Vibration attenuation in rotating machines using smart spring mechanism.
Von Bertalanffy's growth dynamics with strong Allee effect
Von Bertalanffy’s model is one of the most popular differential equation used in order to study the increase in average length or weight of fish. However, this model does not include demographic Allee effect. This phenomenon is known in the fisheries literature as “depensation”, which arises when populations decline rapidly at low densities. In this paper we develop and investigate new corrected von Bertalanffy’s models with Allee effects. The generalization that we propose results from considering...
Свойства решений одного класса уравнений с запаздыванием, описывающих динамику изменения численности вида с учетом возрастной структуры