Environmental change affects metacommunity structure both directly—via abiotic factors and dispersal that affect species occurrence—and indirectly—via complex interactions among co-occurring species. We examined how the three main metacommunity factors—environmental conditions, spatial processes and species associations—affect metacommunity structure and whether responses are predictable in real-world systems by using novel methods to disentangle the drivers.

中文翻译：

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驱动淡水鱼元群落结构的共同过程

环境变化既通过影响物种发生的非生物因素和扩散直接影响元群落结构，又通过共生物种之间复杂的相互作用间接影响元群落结构。我们通过使用新颖的方法来解开驱动因素，研究了三个主要的元社区因素——环境条件、空间过程和物种关联——如何影响元社区结构，以及现实世界系统中的反应是否可预测。