ecological niche

Oral micro-ecological niche is composed of many kinds of microorganism, which inhabit, grow and multiply, compete and inhibit with each other by the Quorum Sensing in the oral cavity.

口腔微生态环境是由许多微生物组成，这些细菌长期在口腔内定居、生长繁殖、不断的进行竞争和拮抗，它们之间的竞争主要是靠密度感应系统（Quorum Sensing，QS）。

To study ecological niche of the Acaroid mites breeding in grain stocks with the logical and qualitative research.

采用逻辑质方法研究粉螨在粮食中生态位。

Use the Theory of Niche and Key Species to Build Ecological Industrial Chain Network

应用生态位和关键种理论构建生态产业链网

The results showed that, the biological and ecological characteristics of Artemisia capillaris Thunb determined its predominant station in this ( region), and its niche breadth in 2002 and 2003 were bigger than other species ( 0.758 and 0.868) continuing to keep rising trend.

结果表明：茵陈蒿的生物、生态学特性决定了它在该区的优势地位，2002年、2003年其生态位宽度远远高于其他物种（0.758和0.868），并且继续保持上升趋势；

Each animal has its ecological niche.

每种动物都有自己的生态位.