What is Relationship Between Timber Age and Wildlife Use?

Timber Age and Habitat Diversity

Older forests, typically between 80 to 120 years old, exhibit the highest level of habitat diversity, which is essential for wildlife use. This diversity is created through the development of complex canopy layers, shrub cover, and an understory of saplings and seedlings. Timber ages between 60 to 80 years are characterized by a more open canopy, allowing for increased sunlight penetration and the growth of mast trees, such as oak and beech, which produce valuable acorns and beechnuts for wildlife.

Selective Harvest and Wildlife Use

Selective harvest techniques, such as single-tree selection, group selection, and shelterwood, can be used to maintain timber ages that support wildlife use. For example, single-tree selection can be used to remove a mature tree while preserving the surrounding forest structure, allowing for continued habitat diversity and wildlife use. By adopting selective harvest techniques, foresters and landowners can maintain a mosaic of timber ages that provide a range of habitats for wildlife, including mast trees, edge habitat, and openings for foraging and movement.

Creating Openings for Wildlife

Creating openings in older forests can be an effective way to enhance wildlife use. Openings can be created through the use of prescribed fire, thinning, or the creation of small clear-cuts. These openings can provide valuable habitat for wildlife, including deer, turkeys, and songbirds, by allowing for increased foraging and movement. Additionally, openings can help to maintain the health and structure of the surrounding forest by reducing the risk of disease and insect infestations, and promoting the growth of new vegetation.