Objectives involve studying the reasons for variation between aspen populations in Wyoming; studying the variability of aspen within specific populations; and determining the significance of this variation in relation to soil, water, wind and spacing characteristics. Project Number 150.
Beetle, Alan A.
"Variation in and Ecology of Aspen,"
Jackson Hole Research Station Annual Report: Vol. 1973
, Article 3.
Available at: http://repository.uwyo.edu/jhrs_reports/vol1973/iss1/3