生物入侵中的进化过程的整合差异模型.
Silas Poloni1,2, Frithjof Lutscher3,4
1Institute of Theoretical Physics, São Paulo State University, São Paulo, SP, 01140-070, Brazil. silaspoloni@gmail.com.
Journal of mathematical biology
|June 17, 2023
概括
诸如空间分类之类的进化过程对生物入侵有重大影响. 这项研究使用了新的整微分方程来建模范围扩展期间特征如何演变,揭示了空间分类和异常速度的条件.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 数学生物学 数学生物学
背景情况:
- 分散和繁殖的个体变化推动了影响生物入侵的进化过程.
- 空间分类和空间选择是改变范围扩张动态的关键进化力量.
- 现有的模型经常使用连续时间反应-扩散方程与高斯分散.
研究的目的:
- 用离散时间整合差异方程开发一种用于塑造生物入侵的进化新理论.
- 为了模拟特征进化,包括分散能力和增长率,跨世代.
- 分析突变和权衡对入侵动态的影响.
主要方法:
- 开发了离散时间和多种分散内核的整合微分方程模型.
- 追踪了几代人的增长率和分散能力分布的变化.
- 分析了移动波的解决方案,非对称的传播速度和入侵前线的人口分布.
主要成果:
- 空间分类出现和不存在的确定的条件.
- 在传播速度和突变概率之间建立了关系.
- 确定了导致异常传播速度的情景,并探索了有害突变的影响.
结论:
- 积分方程为研究入侵期间的进化提供了一个灵活的框架.
- 特征的变化和选择压力极大地影响了入侵速度和空间结构.
- 该模型为生物入侵的进化动态提供了新的见解.
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