References

ARCHIBOLD, O. W.; E. A. RIPLEY, 2004: Assessment of seasonal change in a young aspen (Populus tremuloides Michx.) canopy using digital imagery. Applied Geography, 24, 77-95.

BARTOS, D.L. Great Basin Aspen Ecosystems. In: Chambers, J.C., Devoe, N., Evenden, A. (Eds.), Collaborative Management and Research in the Great Basin: Examining the Issues and Developing a Framework for Action. General Technical Report RMRS-GTR-204. USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO, pp. 57-60.

BRANDT, J. P.; H. F. CEREZKE; K. I. MALLETT; W. J. A. VOLNEY; J. D. WEBER, 2003: Factors affecting trembling aspen (Populus tremuloides Michx.) health in the boreal forest of Alberta, Saskatchewan, and Manitoba, Canada. Forest Ecology and Management, 178, 287-300.

DEBYLE, N. V.; WINOKUR, R. P., editors. 1985. Aspen: Ecology and management in the western United States. General Technical Report RM-119. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 283 p.

DI ORIO, A. P.; R. CALLAS; R. J. SCHAEFER, 2005: Forty-eight year decline and fragmentation of aspen (Populus tremuloides) in the South Warner Mountains of California. Forest Ecology and Management, 206, 307-313.

ELLIOTT, G. P.; W. L. BAKER, 2004: Quaking aspen (Populus tremuloides Michx.) at treeline: a century of change in the San Juan Mountains, Colorado, USA. Journal of Biogeography, 31, 733-745.

FAIRWEATHER, M. L., GEIL, B. W., MANTHEL, M. Aspen Decline on the Coconino National Forest. In: McWilliams, M.G. (Ed.). Proceedings of the 55th Western International Forest Disease Work Conference. Sedona, AZ, October 15-19, 2007. Oregon Department of Forestry, Salem, OR, pp 53-62.Hogg, E.H., Brandt, J.P., and M. Michaelian. Impacts of a regional drought on the productivity, dieback, and biomass of western Canadian aspen forests. 2008. Canadian Journal of Forest Resources: 38. Pg 1373-1384.

Forest Health Management Rocky Mountain Region USDA Forest Service Report (2009): Online Link: http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5196155.pdf

HOGG, E.H., BRANDT, J.P., and MICHAELIAN, M. Impacts of a regional drought on the productivity, dieback, and biomass of western Canadian aspen forests. 2008. Canadian Journal of Forest Resources: 38. Pg 1373-1384.

KULAKOWSKI, D.; T. T. VEBLEN; S. DRINKWATER, 2004: The persistence of quaking aspen (Populus tremuloides) in the Grand Mesa Area, Colorado. Ecological Applications, 14, 1603-1614.

KULAKOWSKI, D.; T. T. VEBLEN; B. P. KURZEL, 2006: Influences of infrequent fire, elevation and pre-fire vegetation on the persistence of quaking aspen (Populus tremuloides Michx.) in the Flat Tops area, Colorado, USA. Journal of Biogeography, 33, 1397-1413.

WORRALL, J. J.; L. EGELAND; T. EAGER; R. A. MASK; E. W. JOHNSON; P. A. KEMP; W. D. SHEPPERD, 2008: Rapid mortality of Populus tremuloides in southwestern Colorado, USA. Forest Ecology and Management, 255, 686-696.