搜索结果: 31-45 共查到“知识库 生物进化论”相关记录172条 . 查询时间(4.682 秒)
Outbreak size distributions in epidemics with multiple stages
Outbreak size distributions epidemics with multiple stages Populations and Evolution
2012/5/2
Multiple-type branching processes that model the spread of infectious diseases are investigated. In these stochastic processes, the disease goes through multiple stages before it eventually disappears...
The olaw of evolutionary dynamics in community-structured populations
Evolutionary game theory Sojourn time Non-uniform interaction rate Simplified PDG
2012/5/2
Evolutionary game dynamics in finite populations provides a new framework to understand the selection of traits with frequency-dependent fitness. Recently, a simple but fundamental law of evolutionary...
The mechanics of stochastic slowdown in evolutionary games
mechanics of stochastic slowdown evolutionary games Populations and Evolution
2012/5/2
We study the stochastic dynamics of evolutionary games, and focus on the so-called `stochastic slowdown' effect, previously observed in (Altrock et. al, 2010) for simple evolutionary dynamics. Slowdow...
Emergence of diversity in a model ecosystem
Emergence of diversity model ecosystem Populations and Evolution
2012/4/28
The biological requirements for an ecosystem to develop and maintain species diversity are in general unknown. Here we consider a model ecosystem of sessile and mutually excluding organisms competing ...
Stochastic delocalization of finite populations
Stochastic delocalization finite populations Populations and Evolution
2012/4/28
Heterogeneities in environmental conditions often induce corresponding heterogeneities in the distribution of species. In the extreme case of a localized patch of increased growth rates, reproducing p...
Coupling methods for efficient simulation of spatial population dynamics
Coupling methods efficient simulation spatial population dynamics Populations and Evolution
2012/4/28
Coupling is a widely used technique in the theoretical study of interacting stochastic processes. In this paper I present an example demonstrating its usefulness also in the efficient computer simulat...
The Effect of Differentiation of Prey Community on Stable Coexistence in a Three-Species Food--Web Model
Intraguild predation Immobilization Alternative resource Multiple resource traits Stable coexistence
2012/4/28
Food webs with intraguild predation (IGP) are widespread in natural habitats. Their adaptation and resilience behaviour is principal for understanding restructuring of ecological communities. In spite...
Statistical Physics of Biological Evolution
Statistical Physics Biological Evolution Populations and Evolution
2012/4/28
This is an extended abstract of lectures delivered at the 4th Warsaw Summer School on Statistical Physics in Kazimierz Dolny, June 25-July 2, 2011.
Natural selection. IV. The Price equation
Natural selection Price equation Populations and Evolution
2012/4/28
The Price equation partitions total evolutionary change into two components. The first component provides an abstract expression of natural selection. The second component subsumes all other evolution...
Symmetric competition as a general model for single-species adaptive dynamics
Symmetric competition general model single-species adaptive dynamics Populations and Evolution
2012/4/28
Adaptive dynamics is a widely used framework for modeling long-term evolution of continuous phenotypes. It is based on invasion fitness functions, which determine selection gradients and the canonical...
Mixing times in evolutionary game dynamics
Mixing times evolutionary game dynamics Populations and Evolution
2012/4/28
Without mutation and migration, evolutionary dynamics ultimately leads to the extinction of all but one species. Such fixation processes are well understood and can be characterized analytically with ...
Dengue in Cape Verde: vector control and vaccination
Dengue Cape Verde vector control and vaccination Populations and Evolution
2012/5/3
In 2009, for the first time in Cape Verde, an outbreak of dengue was reported and over twenty thousand people were infected. Only a few prophylactic measures were taken. The effects of vector control ...
蚜虫是半翅目(Hemiptera)中一类取食植物韧皮部汁液的昆虫， 由于具有一些独特的生物学特征， 是研究重要适应进化问题的理想模型。蚜虫体内存在一类专性的胞内共生菌Buchnera， 对于蚜虫营养代谢和正常发育有重要贡献， 被称为蚜虫的初级内共生菌。蚜虫-Buchnera是研究共生关系的理想模型， 两者系统发育格局的研究有助于理解生物间专性共生关系的演化。本文系统综述了两者在不同分类水平（高级阶...
On the Impact of Mutation-Selection Balance on the Runtime of Evolutionary Algorithms
Mutation-Selection Evolutionary Algorithms
2011/1/6
The interplay between mutation and selection plays a fundamental role in the behaviour of evolutionary algorithms (EAs). However, this interplay is still not completely understood. This paper presents...
The proposal that the concept of innateness expresses a ‘folk biological’ theory of the ‘inner natures’ of organisms was tested by examining the response of biologically naive participants to a series...