Rates of colonization, speciation and extinction determine species richness and endemism in insular systems. The general dynamic model of island biogeography (GDM) predicts that speciation and extinction rates depend on island area and elevation via their control on ecological limits to diversification and therefore covary with an island's geological history. Additionally, the colonization rate may increase with area and elevation through the ‘target effect’, which can be mediated by reduced ‘environmental filtering’. Here we test whether the area and depth expansion of an island‐like ecosystem, a lake, caused a shift in diversity dynamics.

中文翻译：

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湖泊扩张通过增加殖民化来提高平衡多样性

殖民，物种形成和灭绝的速度决定了岛屿系统中物种的丰富性和特有性。岛屿生物地理学的一般动力学模型（GDM）预测，物种形成和物种灭绝的速度取决于岛屿的面积和海拔，这是由于它们控制生态极限以实现多样化，因此与岛屿的地质历史息息相关。另外，定植率可能通过“目标效应”随面积和海拔的升高而增加，这可以通过减少“环境过滤”来介导。在这里，我们测试了一个岛状生态系统（湖泊）的面积和深度扩展是否引起了多样性动态变化。