THE AUTHORS 



RICHARD L. EVERETT is a range scientist and Project 

 Leader of the Intermountain Station's Pinyon-Juniper 

 Ecology and Management research work unit in Reno. 

 He has a B.S. degree in biology and an M.S. in range 

 from the University of Nevada, Reno, and a Ph.D. 

 degree in range ecology from Oregon State University. 

 Corvallis. 



SUSAN KONIAK was formerly a range scientist with 

 the Intermountain Station's Pinyon-Juniper Ecology 

 and Management research work unit. She has a B.S. 

 degree in range management from the University of 

 Nevada, Reno, and is completing requirements for an 

 M.S. degree in biology at the University of Nevada. 

 Reno. 



JERRY D. BUDY is assistant professor of forestry in 

 the Range, Wildlife and Forestry Department, Max C. 

 Fleischmann College of Agriculture, University of 

 Nevada, Reno. He has a B.S. degree from the University 

 of Wisconsin. Madison, and a Ph.D. degree in forest 

 hydrology from the University of Nevada, Reno. 



RESEARCH SUMMARY 



A highly variable number of pinyon seedlings (X = 

 5.480 seedlings/ha, CV = 126 percent) occurred in fully 

 stocked singleleaf pinyon (Pinus monophylla)-\Jta^ 

 juniper {Juniperus osteosperma) stands. Pinyon seed- 

 lings were always more numerous (87 percent) on soil 

 surface microsites adjacent to the tree than in the 

 interspace between trees. Pinyon depends upon a 

 standing crop of seedlings rather than soil seed 

 reserves for species perpetuation. Seedling numbers 

 rapidly decline following tree harvest. Seedlings in 

 fully stocked stands may be of limited importance to 

 species perpetuation because of tree longevity. But 

 the concentration of seedlings in juxtaposition to the 

 parent tree improves opportunities for management of 

 natural regeneratioil by slash disposal or burn 

 treatments. 



