Items starting with C
The part of any stand of trees represented by the tree crowns. It usually refers to the uppermost layer of foliage, but it can be use to describe lower layers in a multi-storied forest.
A category of actions (identified in agency guidance) that do not individually or cumulatively have a significant effect on the human environment, and for which neither an environmental assessment nor an EIS is required (40 CFR 1508.4).
A hole in a tree often used by wildlife species, usually birds, for nesting, roosting, and reproduction.
Areas that have been inventoried and proposed for Wilderness designation by citizens.