图2. 群落结构研究的争鸣。互利群落中关于嵌套性和物种多样性的研究中, 存在三种不同的派系。图A展示了第一种派系, 认为嵌套性是决定互利群落的物种多样性的原因。图B展示了第二种派系, 认为嵌套性并不是决定互利群落的物种多样性的原因。图C展示了第三种派系, 认为嵌套性并不是互利群落的普适结构, 因此嵌套性和物种多样性之间的关系无从谈起。

Fig. 2. The debates in the study of community structures. Three different schools of thought coexist in linking nestedness and species coexistence in mutualistic communities. The first school (Panel A) argues that nestedness is a key factor to support the biodiversity in mutualistic communities, the second school (Panel B) argues there is no causal relationship between the nested pattern and biodiversity, and the third school (Panel C) argues that nested patterns are not universal in observed mutualistic communities, thus makes the whole question a straw man.