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Saber Elaydi

Fitness function

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Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Population Models With Allee Effect: A New Model, Saber Elaydi, Robert J. Sacker Jul 2015

Population Models With Allee Effect: A New Model, Saber Elaydi, Robert J. Sacker

Saber Elaydi

In this paper we develop several mathematical models of Allee effects. We start by defining the Allee effect as a phenomenon in which individual fitness increases with increasing density. Based on this biological assumption, we develop several fitness functions that produce corresponding models with Allee effects. In particular, a rational fitness function yields a new mathematical model that is our focus of study. Then we study the dynamics of 2-periodic systems with Allee effects and show the existence of an asymptotically stable 2-periodic carrying capacity.


Population Models With Allee Effect: A New Model, Saber Elaydi, Robert J. Sacker Jun 2012

Population Models With Allee Effect: A New Model, Saber Elaydi, Robert J. Sacker

Saber Elaydi

In this paper we develop several mathematical models of Allee effects. We start by defining the Allee effect as a phenomenon in which individual fitness increases with increasing density. Based on this biological assumption, we develop several fitness functions that produce corresponding models with Allee effects. In particular, a rational fitness function yields a new mathematical model that is our focus of study. Then we study the dynamics of 2-periodic systems with Allee effects and show the existence of an asymptotically stable 2-periodic carrying capacity.