How did the researchers test the links between acorns, white-footed mice, and gypsy moths in a forest?

研究人员是何测试森林中橡子、白足鼠和舞毒蛾之间的联系的？

We could say goodbye to insects that are invasive species, like gypsy moths and the asian longhorned beetle.

我告别入物种的， 舞毒蛾和亚洲长角甲。

What does the professor say can lead to a change in the gypsy moth population in a forest?

教授说什么会导致森林中舞毒蛾数量的变化？

Some years ago, some of my colleagues conducted an experiment in an oak forest involving three different species: white-footed mice, gypsy moths and oak trees.

几年前，我的一些同事在橡树林中进行了一项涉及三种不同物种的实验：白足鼠、舞毒蛾和橡树。