1. Historical photographs from U.S. Forest Service research and development activities in Alaska
- Author(s):
- Wright, Brenda E.; Plumb, Pauline; Wright, John; Biles, Frances E.
2. Introduced plants induce outbreaks of a native pest and facilitate invasion in the plants’ native range: Evidence from the emerald ash borer
- Author(s):
- Dang, Yingqiao; Wei, Ke; Wang, Xiaoyi; Duan, Jian J.; Jennings, David E.; Poland, Therese M.
U.S. Department of Agriculture