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1·On the basis of these experiments and of field observations, the so-called law of competitive exclusion was formulated, according to which no two species can occupy the same niche.

在这些实验和实地观测的基础上，人们制定了所谓的竞争排斥定律，根据该定律，没有两个物种可以占据相同的生态龛。

2·Birds were also widely used in studies of the niche hypothesis and Georgii Gause's competitive exclusion principle.

鸟类也被广泛应用于生态位假说和乔治高斯竞争排斥原理的研究中。

3·We intend to study the effect of different avian species' competitive exclusion culture on salmonella colonization, immunity and serum biochemical values of broiler chickens.

本文旨在研究不同禽类竞争性排斥培养物对肉鸡沙门氏菌定植、免疫力及血液生化指标的影响。