On the positive side, the passing of those lodgepoles will provide an opportunity for the adjacent aspen to pioneer, and overtime allow the slow invasion of the next wave of conifers...and so on. Often fire is the disturbance agent in lodgepole pine forests, here it appears to be perhaps the same bark beetle that has ravaged Colorado for the last decade or so. Or in combination with drought, or...?
PS: Have you taken notice of the range of seasonal colors that aspen can display? Those aspen on San Francisco Peaks overlooking Flagstaff, range from pale yellow to orange to red...when you see that color pattern continue over time, it suggests different clonal colonies.
Don Bertolette - President/Moderator, WNTS BBS
Restoration Forester (Retired)
Grand Canyon National ParkBJCP Apprentice Beer Judge
View my Alaska Big Tree List Webpage at:http://www.akbigtreelist.org