在一个具有生命阶段和没有从感染中恢复的双补丁SI流行病模型中,源-流动力学
Jimmy Calvo-Monge1, Jorge Arroyo-Esquivel2, Alyssa Gehman3
1Escuela de Matemática, Universidad de Costa Rica, San Pedro, San José, 11501, Costa Rica.
Bulletin of mathematical biology
|July 8, 2024
概括
对危种群来说,通过疾病管理和保持源种群健康,生态救援是可能的. 幼的分散和成熟率是人口恢复和保护工作的关键.
科学领域:
- 生态生态学 生态生态学
- 流行病学 流行病学
- 数学生物学 数学生物学
背景情况:
- 新出现的传染病威胁着自然种群,两动物菌菌病和海星消耗病就是其中的一个例子.
- 空间结构环境中的宿主-病原体动态很复杂,需要进一步研究才能有效地保护.
研究的目的:
- 分析两个补丁,两个生命阶段的SI模型,以了解生态救援动态.
- 为了确定一个更健康的源种群的条件来拯救一个患病的沉种群.
主要方法:
- 没有恢复的易受感染 (SI) 模型的数学和数值分析.
- 研究包括基本繁殖数量,成熟率和幼分散率在内的参数.
主要成果:
- 鉴定出源和下沉种群生殖数量,成熟和分散率在种群结果中的关键作用.
- 通过救援效应来实现人口恢复的接受补丁的确定条件.
结论:
- 维持生殖活力的避难种群对于保护至关重要.
- 分散和成熟率显著影响人口从疾病中恢复.
- 需要多方面的保护策略来应对因新出现的疾病而导致的生物多样性丧失.
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