04/07
2023
Seminar
- Title题目 Statistical Mechanics of Microbiomes
- Speaker报告人 崔文平 (KITP-UCSB)
- Date日期 2023年4月7日 15:00
- Venue地点 南楼6620
Abstract摘要
In 1972, Robert May triggered a worldwide research program studying ecological communities using random matrix theory. Yet, it remains unclear if and when we can treat real communities as random ecosystems. Here, we draw on recent progress in random matrix theory and statistical physics to extend May’s approach to generalized consumer-resource models. We show that in diverse ecosystems adding even modest amounts of noise to consumer preferences results in a transition to “typicality” where macroscopic ecological properties of communities are indistinguishable from those of random ecosystems, even when resource preferences have prominent designed structures. We test these ideas using numerical simulations on a wide variety of ecological models and simulations using experimentally measured plan-pollination networks. Our work naturally explains the success of random consumer resource models in reproducing experimentally observed ecological patterns in microbial communities and highlights the difficulty of scaling up bottom-up approaches in synthetic ecology to diverse communities.
个人简介：崔文平，2011年毕业于中国科学技术大学天文系，2014年在德国波恩大学取得硕士学位，2021年在波士顿学院获得物理博士学位，现于卡维里理论物理研究所-加州大学圣芭芭拉分校担任博士后研究员，研究方向为生物物理，主要应用自旋玻璃，随机矩阵理论，以及非平衡态等统计物理方法，研究复杂生态系统及群体遗传学。
邀请人： 张潘 研究员
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