The distribution of the coalescence time and the number of pairwise nucleotide differences in the "isolation with migration" model [0.03%]
具有基因流的隔离模型中归祖事件时间及核苷酸差别对数分布的研究
Hilde M Wilkinson-Herbots
Hilde M Wilkinson-Herbots
This paper is concerned with the "isolation with migration" model, where a panmictic ancestral population gave rise to a symmetric n-island model, time tau ago. Explicit analytical expressions are derived for the probability density functio...
Otso Ovaskainen
Otso Ovaskainen
I present a general diffusion-based modeling framework for the analysis of animal movements in heterogeneous landscapes, including terms representing advection, mortality, and edge-mediated behavior. I use adjoint operator theory to develop...
Theoretical description of chromosome architecture after multiple back-crossing [0.03%]
多次回交后染色体结构的理论描述
François Rodolphe,Juliette Martin,Emmanuelle Della-Chiesa
François Rodolphe
This paper provides a theoretical description of the chromosome architecture resulting from a given number of generations in a back-cross. It is worth considering chromosome architecture as being dependent on a marked point process, whose p...
How can we model selectively neutral density dependence in evolutionary games [0.03%]
如何在进化博弈中模拟选择性中性的密度依赖关系
Krzysztof Argasinski,Jan Kozłowski
Krzysztof Argasinski
The problem of density dependence appears in all approaches to the modelling of population dynamics. It is pertinent to classic models (i.e., Lotka-Volterra's), and also population genetics and game theoretical models related to the replica...
Computing additive beta-diversity from presence and absence scores: a critique and alternative parameters [0.03%]
关于仅基于存在和缺失计分来计算加性beta多样性的一种批判及替代参数
Carlo Ricotta
Carlo Ricotta
Whittaker first proposed to measure the variation in species composition among plots or beta-diversity as the ratio between regional diversity (gamma-diversity) and average local diversity (alpha-diversity). More recently, an alternative wa...
C Y Cyrus Chu,Hung-Ken Chien,Ronald D Lee
C Y Cyrus Chu
Mortality is U-shaped with age for many species, declining from birth to sexual maturity, then rising in adulthood, sometimes with postreproductive survival. We show analytically why the optimal life history of a species with determinate gr...
Effects of Optimal Antipredator Behavior of Prey on Predator-Prey Dynamics: The Role of Refuges [0.03%]
捕食者避难所对最优反被捕食行为的影响：基于捕食者-猎物动态系统的分析
V Krivan V
V Krivan V
The influence of optimal antipredator behavior of prey on predator-prey dynamics in a two-patch environment is studied. One patch represents an open habitat while the other is a refuge for prey. It is assumed that prey maximize their fitnes...
Pattern Formation and the Spatial Scale of Interaction between Predators and Their Prey [0.03%]
捕食者与猎物之间的空间相互作用模式形成及尺度效应
de Roos AM,E McCauley,WG Wilson
de Roos AM
We study interactions of predators and prey that are characterized by a scale difference in their use of space. Prey are assumed to occupy patches, forming a metapopulation with low migration among patches. Predators are homogeneously distr...
Environmental Variability and the Persistence of Parasitoid-Host Metapopulation Models [0.03%]
环境变异性与寄生宿主元种群模型的持续性
AD Taylor
AD Taylor
Parasitoid-host metapopulation models (after Reeve) were simulated with varying amounts of spatio-temporal or spatial environmental variability, as well as varying dispersal rates and instability of within-population dynamics. Persistence w...
Four-Periodicity in Leslie Matrix Models with Density Dependent Survival Probabilities [0.03%]
基于密度的生存概率的Leslie矩阵模型中的周期4性态
A Wikan
A Wikan
Leslie matrix models with a wide range of density dependent survival probability functions pi are studied. It is shown that for all pi which lead to nonstationary behavior, the instability is introduced through a supercritical Hopf bifurcat...