Fire can be an effective bottom-up regulator.

Question

Quizplus · Accepted Answer

Fire can regulate ecosystems at the bottom-up level by controlling the abundance of primary producers such as plants, which in turn affects the entire food web. For example, frequent fires in grasslands can promote the growth of grasses and reduce the abundance of woody plants, which can benefit grazers such as bison and pronghorns. Therefore, fire can act as an important ecological driver that affects the structure and function of ecosystems from the bottom-up.

Fire Can Be an Effective Bottom-Up Regulator