Which of the following shows evidence of gopher activity?

Crescent mounds are characteristic features associated with gopher activity. Gophers create these mounds as they excavate their burrows, and the shape of these mounds resembles a crescent due to the specific way soil is pushed up and out of their tunnels. This is particularly distinctive when comparing to other pest activities.

While volcanic mounds can occur due to various types of soil disturbance, including those created by other burrowing animals, they are not specifically indicative of gopher tunneling. Shallow tunnels may also be created by different types of soil-dwelling animals, such as moles or voles, and may not necessarily define gopher presence.

Identifying crescent mounds is significant because they distinctly indicate gopher activity. Understanding these signs allows for better identification and management of gopher populations through Integrated Pest Management practices.