昨天，看了很多关于生物地理分布以及多样性方面的文章，感触颇多，现在分享给大家。

1. “Everything is everywhere, but the environmant selects", 与之相对应的模型是”Everything is everwhere (EiE) model, 或者称为"ubiquity model", no dispersal limitation. 另一种模型是“moderate endemicity model", 近年来被发现很多类群的分布都遵循这个模型。

2. ”Not only all the species adapted to its conditions (environment filtering) but also a "seed bank" of many others that arrived and survived, but not thrived. Everything seems to be everywhere, even if it is not immediately obvious.

       目前关于这些模型的比较研究主要集中在海洋微生物，因为海洋微生物可以随着海水的移动而移动。而在土壤微生物中的研究寥寥无几。我个人认为两个模型都有他的道理和意义，对于case study, 很可能就是符合moderate endemicity model. 但是从整体上来思考，everything is everywhere, but the environment selects, 这句话相当经典。