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A simple individual-based population growth model with limited resources

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  • Neves, Luis R.T.
  • Maia, Leonardo Paulo

Abstract

We address a novel approach for stochastic individual-based modelling of a single species population. Individuals are distinguished by their remaining lifetimes, which are regulated by the interplay between the inexorable running of time and the individual’s nourishment history. A food-limited environment induces intraspecific competition and henceforth the carrying capacity of the medium may be finite, often emulating the qualitative features of logistic growth. Inherently non-logistic behaviour is also obtained by suitable change of the few parameters involved, composing a wide variety of dynamical features. Some analytical results are obtained. Beyond the rich phenomenology observed, we expect that possible modifications of our model may account for an even broader scope of collective population growth phenomena.

Suggested Citation

  • Neves, Luis R.T. & Maia, Leonardo Paulo, 2021. "A simple individual-based population growth model with limited resources," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 567(C).
    • Handle: RePEc:eee:phsmap:v:567:y:2021:i:c:s0378437120310190
    DOI: 10.1016/j.physa.2020.125721
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    Cited by:

    1. Zuxiong Li & Shengnan Fu & Huili Xiang & Hailing Wang, 2021. "Qualitative Analysis of a Single-Species Model with Distributed Delay and Nonlinear Harvest," Mathematics, MDPI, vol. 9(20), pages 1-26, October.

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