在空间-时间异质性下分散的演变
Kalle Parvinen1, Hisashi Ohtsuki2, Joe Yuichiro Wakano3
1Department of Mathematics and Statistics, FI-20014, University of Turku, Finland; Advancing Systems Analysis Program, International Institute for Applied Systems Analysis (IIASA), A-2361 Laxenburg, Austria; Okinawa Institute of Science and Technology, Onna-son, Kunigami-gun, Okinawa, 904-0495, Japan.
Journal of theoretical biology
|September 2, 2023
概括
环境异质性影响分散进化. 条件分散策略,后代避免从低质量的斑块迁移,是最受青的,影响人口动态和进化.
科学领域:
- 进化生物学是进化的生物学.
- 理论生态学的理论生态学.
- 人口动态 人口动态
背景情况:
- 环境的异质性,无论是空间的还是时间的,都对分散策略的演变产生了重大影响.
- 之前的模型表明,空间异质性可能会阻碍分散,而时间异质性则通过投注对冲来促进它.
- 补丁结构群体的空间时间异质性可以有利于分散进化,特别是当个体可以使用补丁质量信息时.
研究的目的:
- 在空间时空异质性下的分散进化现有模型的概括.
- 在有补丁质量信息的情况下,研究条件分散策略的进化动态.
- 探索到达偏向向高生产率补丁对分散进化的影响.
主要方法:
- 在异质环境中发展分散进化的通用数学模型的开发.
- 分析进化游戏理论和生殖价值论证,以理解条件分散.
- 探索双稳定的进化动态和参数依赖性.
主要成果:
- 条件分散策略表现出更丰富的动态,包括双稳定性,特别是对高生产率补丁的到达偏差.
- 一个令人惊的结果表明,后代不会从他们出生的地方从低生产率的斑块分散.
- 从高生产率地区的分散可以演变,与参数依赖性类似,但与无条件分散不相同.
结论:
- 个体使用补丁质量信息进行条件分散的能力显著改变了进化结果.
- 条件分散策略,特别是避免从低质量的斑块迁移,对于理解异质环境中的人口动态至关重要.
- 生殖价值论证为反直觉的发现提供了直觉,即从低质量的补丁中没有分散.
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