Question

This case study focuses on two important herbivores in the Serengeti: buffalo and wildebeest. Their populations are strongly affected by certain bottom-up factors. Which of the following is a bottom-up factor that could impact the population sizes of these herbivores?

a. predators, such as lions
b. parasites
c. rainfall
d. earthquakes
also explain please

Answer 1

Rainfall is a bottom-up factor that could impact the population sizes of buffalo and wildebeest in the Serengeti.

Step-by-step explanation:

A bottom-up factor that could impact the population sizes of buffalo and wildebeest in the Serengeti is rainfall. Rainfall is a key factor that affects the availability of vegetation, which is the primary food source for these herbivores.

When there is sufficient rainfall, there is more vegetation available for the buffalo and wildebeest to graze on, leading to larger population sizes. On the other hand, a lack of rainfall can result in food scarcity and ultimately impact the population sizes of these herbivores.