We argue that the species aggregate ( or speciescomplex) concept should better be adopted when identifying some plants documented in ancient Chinese literature .
我们认为在确定中国古籍文献中记载植物的学名时， 对部分植物宜采用集合种（ 或复合种） 的概念。
2
The complex interplay of species in symbiotic relationships highlights an important point about communities: Their structure depends on a web of diverse connections among organisms.
物种在共生关系中复杂的相互作用突出了群落的一个重要特点：它们的结构取决于生物之间多样的联系网络。
3
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.