Dhole predation on these ungulates did not differ from random.

豺的取情况则相当随机。

3.Food, temperature and predation pressure directly act on the value of venturous revenue and are major environmental factors affecting DVM of the copepod.

3．物、温度和捕压力直接影响益值的大小，是影响桡足类垂直迁移的主要环境因子。