支持这一观点的是，长期存在的顶极群落通常比先锋群落有更复杂的食物网和更多的物种多样性。
Support for this idea came from the observation that long-lasting climax communities usually have more complex food webs and more species diversity than pioneer communities.
当季节变得更分明，植物群落逐渐分开，也就意味着任何一个特定的地区的植物种类多样性都会降低。
When the seasons became more distinct, the plant communities were pulled apart, that meant, in any given area, there was less plant diversity.
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