How are pocket gopher burrows classified?

Pocket gopher burrows are classified as closed systems because they are typically extensive networks of underground tunnels that are sealed from the external environment. This means that while pocket gophers can freely move within their burrow system, these tunnels do not allow easy access for other animals or humans. The closed nature of these burrows helps to maintain a stable internal environment for the gophers and protects them from predators.

In contrast, open systems would imply an interconnectedness with the surrounding environment, allowing for exchanges such as air or moisture, which is not characteristic of the inherently sealed burrow structures of pocket gophers. Trapping systems refer to methods used to catch animals rather than a description of burrow characteristics. Temporary systems would suggest that the burrows are not permanent structures, which is not the case, as pocket gophers generally maintain their burrows over time for continued use. Thus, classifying gopher burrows as closed systems accurately reflects their construction and functional properties.