摘要翻译:
我们研究了进化生态学的纠结自然模型的一个版本,在一个表型空间中重新定义,在这个空间中突变体具有与其亲本相关的特性。该模型具有基于个体的动态特性,同时考虑了物种规模的竞争约束和系统规模的资源约束。多个物种共存于一个物种相互作用网络中,具有演化的全局特性。随着互动性的扩大,平均相互作用强度和网络连接度相对于零系统都有所增加。通过研究平均程度对资源水平的依赖关系,提取出符合野外数据双曲线形式的多样性-连通性关系。这被认为是为了实现积极互动而产生的进化压力的结果。在所有情况下,网络度分布都比零二项分布更符合指数分布。这种影响被认为是由生殖过程中的相关性引起的。我们还研究了资源可用性如何影响近似幂律形式的表型寿命分布。我们观察到平均生存期与资源水平成反比。
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英文标题:
《The Tangled nature model with inheritance and constraint: Evolutionary
ecology restricted by a conserved resource》
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作者:
Simon Laird and Henrik Jeldtoft Jensen
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最新提交年份:
2005
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分类信息:
一级分类:Quantitative Biology 数量生物学
二级分类:Populations and Evolution 种群与进化
分类描述:Population dynamics, spatio-temporal and epidemiological models, dynamic speciation, co-evolution, biodiversity, foodwebs, aging; molecular evolution and phylogeny; directed evolution; origin of life
种群动力学;时空和流行病学模型;动态物种形成;协同进化;生物多样性;食物网;老龄化;分子进化和系统发育;定向进化;生命起源
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一级分类:Quantitative Biology 数量生物学
二级分类:Other Quantitative Biology 其他定量生物学
分类描述:Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要:
We study a version of the Tangled Nature model of evolutionary ecology redefined in a phenotype space where mutants have properties correlated to their parents. The model has individual-based dynamics whilst incorporating species scale competitive constraints and a system scale resource constraint. Multiple species arise that coexist in a species interaction network with evolving global properties. Both the mean interaction strength and the network connectance increase relative to the null system as mutualism becomes more extensive. From a study of the dependence of average degree on the resource level we extract the diversity-connectance relationship which conforms to the hyperbolic form seen in field data. This is adjudged to arise as a consequence of the evolutionary pressure to achieve positive interactions. The network degree distributions conform more strongly to exponential than to the null binomial distributions in all cases. This effect is believed to be caused by correlations in the reproductive process. We also study how resource availability influences the phenotypical lifetime distribution which is approximately of power law form. We observe that the mean lifetime is inversely related to the resource level.
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PDF链接:
https://arxiv.org/pdf/q-bio/0510008


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