在调节种群增长方面，它与捕食一起是最重要的密度制约因子。
Together with predation, it is the most important density-dependent factor in regulating population growth.
林地鼢鼠种群是通过雌雄鼠的数量关系来调节种群繁殖。
The population breeding was regulated by the quantitative relationships between female and male in the woodland.
寄生蜂是调节寄主害虫种群数量的一个重要因子。
Parasitoids is an important factor in regulating insect population dunamics.
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