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全球岛屿物种与植物面积的关系

Thomas J Matthews^1,2,3, Julian Schrader⁴, François Rigal^3,5

¹School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom.

Proceedings of the National Academy of Sciences of the United States of America

|February 17, 2026

概括

对于本地植物,全球岛屿物种-区域关系 (ISAR) 遵循一个动力模型,而特有丰富性更好地通过一个断点模型来解释. 岛屿特征如特有性,类型和隔离性影响这些关系.

科学领域:

生态生态学生态生态学
生物地理学是生物地理学.
岛屿生物地理岛屿生物地理

背景情况:

岛屿物种-区域关系 (ISAR) 是一个基本的生态模式,但其全球性质和岛屿特有性影响尚未完全理解.
分析了来自全球1,262个岛屿的血管植物数据,以在广泛的岛屿地区探索ISAR.

研究的目的:

确定本地物种丰富度 (NatRich) 和单个岛屿特有丰富度 (SIErich) 的全球ISAR.
在不同岛屿类型和大小中比较ISAR的功率和断点模型的合适性.
调查岛屿特有性,隔离和类型在塑造ISAR中的作用.

主要方法:

全球1,262个岛屿的血管植物丰富性数据的分析.
使用记录物种数量和面积的功率和断点模型的比较.
检查ISAR斜坡和模型适合本地和特有丰富性的检查.
岛屿面积,孤立和类型的统计控制.

主要成果:

一个简单的功率模型最好地描述了全球ISAR对本地植物丰富性的描述 (z = 0.32).
一个平坦的断点模型优于单个岛屿特有丰富性的功率模型 (z = 0.48).
岛屿特有性的增加增强了ISAR倾斜的本地财富.
岛屿的孤立与本土财富的下降,但增加了特有病症有关.
大型岛屿 (>10,000平方公里) 呈现出加速增长的本土财富,这是由古老的,热带的,山岳的大陆碎片和陆桥岛屿推动的.

结论:

全球工厂ISAR最好用功率模型来描述,没有证据表明上部异位.
岛屿类型,特有性和隔离是影响ISAR形式的重要因素.
岛屿特有主义在了解岛屿上的物种丰富模式方面发挥着至关重要的作用.

关键词:

岛屿生物地理学岛屿生物地理学岛屿特有主义岛屿特有主义植物多样性植物多样性动力模型的动力模型种类面积关系关系.

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