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Related Experiment Videos

[Initiation of auto-oscillations in a distributed system with multiple equilibria].

G S Markman, Iu A Dombrovskiĭ

    Biofizika
    |July 1, 1983
    PubMed
    Summary

    Mathematical modeling reveals that removing environmental uniformity can cause large population fluctuations. This highlights potential risks associated with widespread chemical applications and their impact on ecological and biological systems.

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    [Stochastic synchronization of biological systems by external periodic factors].

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    [Initiation of auto-oscillation systems of oscillations with the period multiple to the modulation period].

    Biofizika·1982
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    [Development of stationary dissipative structures in a unidimensional Turing--Prigogine model].

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    [Spatially heterogeneous distribution of phytoplankton in a model of a regulated population].

    Biofizika·1979

    Area of Science:

    • Ecological modeling
    • Population dynamics
    • Systems biology

    Context:

    • Environmental conditions significantly influence population stability.
    • Local systems with uniform regimes are susceptible to external disruptions.
    • Abrupt environmental changes can lead to unpredictable population dynamics.

    Purpose:

    • To investigate the impact of environmental nonuniformity on population numbers using a mathematical model.
    • To analyze the consequences of eliminating borders between local ecological systems.
    • To explore the relationship between environmental changes and population oscillations.

    Summary:

    • A mathematical model demonstrated that abrupt environmental nonuniformity can alter population numbers over time.
    • Removing boundaries between local systems with stable, uniform conditions can induce large-amplitude auto-oscillations across the entire region.

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  • This phenomenon is relevant to understanding the effects of pest control chemicals and chemotherapy on biological systems.

    • Impact:

    • Provides insights into the potential destabilizing effects of widespread chemical interventions in ecosystems.
    • Offers a framework for understanding population dynamics in response to environmental fragmentation or homogenization.
    • Suggests implications for ecological management and the study of immune system responses to treatments.