It also plays an important role in maintaining biodiversity in a mosaic of forest types and ages. Vegetation is varied within and among forest stands and continually changes through successional stages. These changes maintain a diverse landscape. Mast, Den Trees, and Snags Mast trees produce both hard and soft seeds which are valuable wildlife foods. Den trees contain hollow cavities that provide shelter and nest sites for animals, birds, insects, and reptiles.
Snags serve as perches and nesting sites for a variety of birds.
These trees are an important wildlife management component and are often left within pine plantations. This corridor, or leave strip, has a dual purpose. Corridors provide cover for many different types of wildlife and maintain diversity. Forests benefit water quality and streamflow. Leaf-covered forest soils act as a giant sponge, soaking up rainfall, filtering it, and slowly releasing it back into the watersheds.