具有季节性光照强度的浮游植物-浮游动物化学计量模型的动力学。

IF 2.6 4区工程技术 Q1 Mathematics

Mathematical Biosciences and Engineering Pub Date : 2024-08-20 DOI:10.3934/mbe.2024301

Zhenyao Sun, Da Song, Meng Fan

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引用次数: 0

摘要

化学异质性通过影响浮游植物的承载能力和浮游动物的摄食率，对浮游植物和浮游动物的相互作用动态产生重大影响。本研究的核心目标是建立并检验一个浮游植物-浮游动物生长的非自主模型，该模型包含了季节驱动的光照强度变化和化学异质性。该系统的动力学特征包括正不变性、耗散性、边界动力学和内部动力学。随后，我们进行了数值模拟，以验证理论研究结果，并阐明季节性光照强度、营养供应和浮游动物损失率对浮游植物动力学的影响。我们的模型和分析结果为浮游植物的季节性繁殖提供了可能的解释。

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Dynamics of a stoichiometric phytoplankton-zooplankton model with season-driven light intensity.

Chemical heterogeneity significantly influences the dynamics of phytoplankton and zooplankton interactions through its effects on phytoplankton carrying capacity and zooplankton ingestion rates. Our central objective of this study was to develop and examine a nonautonomous model of phytoplankton-zooplankton growth, which incorporates season-driven variations in light intensity and chemical heterogeneity. The dynamics of the system is characterized by positive invariance, dissipativity, boundary dynamics, and internal dynamics. Subsequently, numerical simulations were conducted to validate the theoretical findings and to elucidate the effects of seasonal light intensity, nutrient availability, and zooplankton loss rates on phytoplankton dynamics. The outcomes of our model and analysis offer a potential explanation for seasonal phytoplankton blooms.

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来源期刊

Mathematical Biosciences and Engineering 工程技术-数学跨学科应用

CiteScore

3.90

自引率

7.70%

发文量

586

审稿时长

>12 weeks

期刊介绍： Mathematical Biosciences and Engineering (MBE) is an interdisciplinary Open Access journal promoting cutting-edge research, technology transfer and knowledge translation about complex data and information processing. MBE publishes Research articles (long and original research); Communications (short and novel research); Expository papers; Technology Transfer and Knowledge Translation reports (description of new technologies and products); Announcements and Industrial Progress and News (announcements and even advertisement, including major conferences).