overlapping niche造句

Why those species - pairs shown positive association or correlation was that they had the similar biological characters and the similar eco - adaptive and segeration niche . why the species pairs shown negative association or correlation was that they had different ecological characters , different adaption and overlapping niche
种对间负关联或负相关，则是由于它们具有不同的生物学特性、对生境具有不同的生态适应性和相互重叠的生态位所致。
It's difficult to find overlapping niche in a sentence. 用overlapping niche造句挺难的