What may happen to an ecosystem if all primary consumer were removed

There are small herbivores that eat the plants such as mice, ants, and grasshoppers. Foxes, snakes, and lizards prey upon the small consumers ... If all the primary consumers in an ecosystem were removed there would eventually be an increase in producers and a decrease in secondary and tertiary consumers.

If all the primary consumers in an ecosystem were removed there would eventually be an increase in producers and a decrease in secondary and tertiary consumers.