6533b855fe1ef96bd12afe62

RESEARCH PRODUCT

Predator population depending on lemming cycles

O. A. ChichiginaE. I. AnashkinaE. I. AnashkinaBernardo SpagnoloBernardo SpagnoloA.v. KargovskyDavide ValentiDavide Valenti

subject

Settore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciPopulationDead-time-distorted Poisson proceDead-time-distorted Poisson process; Langevin equation; Noise in biological systems; population dynamics; Condensed Matter Physics; Statistical and Nonlinear PhysicsCondensed Matter PhysicNoise in biological system01 natural sciences010305 fluids & plasmasLangevin equation0103 physical sciencesQuantitative Biology::Populations and EvolutionStatistical physics010306 general physicseducationPredatorMathematicsPulse noiseeducation.field_of_studyStochastic processMultiplicative functionStatistical and Nonlinear PhysicsCondensed Matter Physicspopulation dynamicLangevin equationNoiseStationary state

description

In this paper, a Langevin equation for predator population with multiplicative correlated noise is analyzed. The noise source, which is a nonnegative random pulse noise with regulated periodicity, corresponds to the prey population cycling. The increase of periodicity of noise affects the average predator density at the stationary state.

yearjournalcountryeditionlanguage
2016-06-16
10.1142/s0217979215410039http://hdl.handle.net/10447/205170