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人口动态在一个时间变化的环境中,具有粗尾相关性

Immanuel Meyer¹, Ami Taitelbaum², Michael Assaf²

¹Department of Physics, <a href="https://ror.org/03kgsv495">Bar-Ilan University</a>, Ramat-Gan IL52900, Israel.

Physical review. E

|August 20, 2024

概括

环境噪音 (EN) 显著影响物种动态. 这项研究表明,与传统模型不同,权力法相关的EN创造了一个中间制度,其中罕见的稳定条件推动了人口动态和灭绝模式.

科学领域:

生态生态学生态生态学
理论生物学理论生物学
人口动态人口动态
环境科学环境科学

背景情况:

时间环境噪声 (EN) 是影响人口和社区动态的关键因素.
传统模型通常假定马科维流程具有指数相关时间分布 (灭或冷却模式).
经验证据越来越多地表明,环境相关时间的脂肪尾衰变偏离了标准模型.

研究的目的:

研究权力法相关环境噪声对孤立和竞争群体的生态后果.
分析和化环境噪声之间的中间状态中的动态.
为了描述孤立群体的灭绝行为,根据权力法相关联的EN.

主要方法:

根据权力法相关的环境噪音,理论建模人口动态.
分析火和火动力学之间的中间状态.
对孤立种群的灭绝时间缩放和对光谱指数的依赖的调查.

主要成果:

和化动态之间的中间状态可以在权力相关法 EN.下无限期扩展.
这个中间地区的人口动态主要是由不经常但重要的环境条件稳定的时期主导的.
对于孤立的种群,灭绝时间表现出与丰度的对数和对光谱指数的非单调依赖的权力规律缩放.

结论:

权力法相关的环境噪声引入了新的动态行为,这些动态行为没有被传统的马科维模型所捕捉到.
确定的中间制度强调了罕见的,长期的环境状态在生态动态中的重要性.
了解这些动态对于预测在波动的环境中物种持久性和进化轨迹至关重要.

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