THE AUTHORS 



RESEARCH SUMMARY 



WALTER F. MUEGGLER is principal plant ecologist 

 and was leader of the Intermountain Research 

 Station's Aspen Ecology and Managennent Research 

 Work Unit at Logan, UT. He has been involved with 

 research on aspen lands for over 10 years. He holds a 

 B.S. degree in forestry fronn the University of Idaho, 

 M.S. degree fronn the University of Wisconsin, and 

 Ph.D. in plant ecology from Duke University. 



ROBERT B. CAMPBELL, JR. was a botanist with the 

 Intermountain Research Station's Aspen Ecology and 

 Management Research Work Unit in Logan, UT. He 

 began working in aspen-related research for the 

 Station in 1974. He has a B.S. degree in botany from 

 Brigham Young University and a B.S. degree in 

 agronomy from Utah State University. 



A vegetation classification for the aspen-dominated 

 forests of Utah is based upon existing community 

 structure and plant species composition. Included are 

 36 community types that occur within six cover-type 

 categories. A diagnostic key using indicator species 

 facilitates field identification of the community types. 

 Vegetational composition, productivity, and succes- 

 sional status are included. Tables provide detailed 

 comparisons of community types. The classification 

 and descriptions are based upon data from over 1.200 

 aspen stands scattered across the six National 

 Forests within Utah. 



ACKNOWLEDGMENTS 



Assistance in collecting field data was provided by 

 summer technicians Kevin Gardner and Elizabeth Cole 

 Some stand data related to separate studies on aspen 

 to conifer succession were furnished by Roy Harniss 

 (Intermountain Research Station) and Ronald Mauk 

 (Utah State University). The computer programs used 

 to prepare synthesis and summary tables essential to 

 development of the classification were written by 

 Ronald Mauk. 



