生态拟合模型

中文摘要 AI 辅助

生态拟合描述了一种物种之间相互作用但缺乏共同进化历史的情况。它既是适应的零模型，本身也是一个重要的过程，例如，非本地物种的建立就是生态拟合，并且它是新生态系统形成的主要机制。在本文中，我们引入并分析了一个生态拟合模型。我们通过分析和模拟证明，决定入侵成功的主要因素是入侵生态系统的种群和多样性，它们设定了入侵者面临的障碍大小。我们还研究了许多进化上无关的物种同时殖民一个空旷区域的情况。我们表明，一个成功的平衡很可能建立，但多样性往往远低于起始库中的物种数量，并讨论了其影响。

英文摘要

Ecological fitting describes a situation where species interact despite no shared evolutionary history. It is both a null model for adaptation and an important process in its own right, for example, the establishment of a non-native species is ecological fitting, and it is a major mechanism in the formation of Novel Ecosystems. In this paper we introduce and analyse a model of ecological fitting. We demonstrate both analytically and through simulation that the main factors determining invasion success are the invaded ecosystem's population and diversity, which set the size of the barrier for invaders. We also study the situation where many evolutionarily unrelated species simultaneously colonise an empty area. We show that a successful equilibrium is likely to be established, but the diversity tends to be very much less than the number of species in the starting pool and discuss the implications of this.

发表机构

• University of Exeter（埃克塞特大学）
• University of Lincoln（林肯大学）
• University of Nottingham（诺丁汉大学）

机构由 AI 辅助整理，请以论文原文为准。