How does the number of prey effect the number of predators?

Answer 1

Predators EAT their prey. If the number of prey diminishes there is less food available for the predators to catch so some of them starve to death. Similarly if there are numerous prey then the predators eat well and breed successfully and their numbers go up.

There is therefore a balance between the numbers of predators and their prey.

Answer 2

Without a great number of prey the predators will starve and therefore die off. Smart predators, which is most of them, leave the area when the number of prey runs to low.

Answer 3

yes of course because it is necessary seeing as only a tenth of the previous energy moves up the energy prymaid...

Answer 4

If it was the other way around, soon the predators would have eaten all the prey, and would start to die out due to lack of food.