植物浮游生物的季节性避难模式会在受污染的环境中引发不规则的开花事件
Arindam Mandal1, Saswati Biswas2, Pankaj Kumar Tiwari3
1Department of Mathematics, Indian Institute of Technology Ropar, Rupnagar, 140001, Punjab, India.
Scientific reports
|October 25, 2024
概括
动物浮游生物在有毒植物浮游生物上放牧,影响浮游生物的开花. 模型与印度现场数据的校准揭示了复杂的动态,包括政权转变和季节变化下的混乱开花,影响生物多样性.
科学领域:
- 数学生态学数学生态学
- 有毒植物浮游生物的动态
- 动物浮游生物与植物浮游生物的相互作用
背景情况:
- 动物浮游生物在接触有毒植物浮游生物时表现出行为变化,包括减少食.
- 人类制造的有毒物质直接伤害植物浮游生物,并通过受污染的食物来源间接影响动物浮游生物.
- 非有毒的植物浮游生物采用密度依赖的策略来缓解动物浮游生物的过度掠食.
研究的目的:
- 通过数学模型来模拟有毒植物浮游生物和放牧动物浮游生物之间的相互作用.
- 调查动物浮游生物放牧在浮游生物开花的出现和缓解中的作用.
- 探索环境变化和避难策略对浮游生物系统稳定性和动态的影响.
主要方法:
- 开发一个数学模型,结合有毒和无毒植物浮游生物和动物浮游生物.
- 模型的校准使用来自印度塔尔萨里和迪加莫哈纳的现场数据.
- 通过分叉分析分析模型行为的分析,并将季节性变化的时间依赖参数纳入.
主要成果:
- 动物浮游生物的放牧被认为是控制浮游生物开花的关键因素.
- 浮游生物系统可以表现出多个稳定状态和显著的制度转变,受到避难能力和增长率的影响.
- 季节性环境变化可能导致双周期溶液或不规则的混乱开花,特别是强烈的避难模式变化.
结论:
- 这项研究提供了对有毒植物浮游生物与动物浮游生物相互作用的复杂动态的数学见解.
- 了解这些动态对于预测浮游生物繁殖现象及其对生物多样性的影响至关重要.
- 该模型强调了浮游生物系统对环境变化和放牧压力的敏感性.
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