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An Ecosystem in Transition: Causes and Consequences of the Conversion of Mesic Grassland to ShrublandJOHN M. BRIGGS, ALAN K. KNAPP, JOHN M. BLAIR, JANA L. HEISLER, GREG A. HOCH, MICHELLE S. LETT, and JAMES K. McCARRON · BioScience · 2005
Determinants of C₃ Forb Growth and Production in a C₄ Dominated GrasslandJohn M. Briggs and Alan K. Knapp · Plant Ecology · 2001
Intra-annual rainfall variability and grassland productivity: can the past predict the future?Jesse B. Nippert; Alan K. Knapp; John M. Briggs · 2006
Intra-Annual Rainfall Variability and Grassland Productivity: Can the Past Predict the Future?Jesse B. Nippert, Alan K. Knapp and John M. Briggs · Plant Ecology · 2006
Expansion of Woody Plants in Tallgrass Prairie: A Fifteen-Year Study of Fire and Fire-Grazing InteractionsJohn M. Briggs, Alan K. Knapp and Brent L. Brock · American Midland Naturalist · 2002
Interannual Variability in Primary Production in Tallgrass Prairie: Climate, Soil Moisture, Topographic Position, and Fire as Determinants of Aboveground BiomassJohn M. Briggs and Alan K. Knapp · American Journal of Botany · 1995
Shrub encroachment in North American grasslands: shifts in growth form dominance rapidly alters control of ecosystem carbon inputsALAN K. KNAPP; JOHN M. BRIGGS; SCOTT L. COLLINS; STEVEN R. ARCHER; M. SYNDONIA BRET-HARTE; BRENT E. EWERS; DEBRA P. PETERS; DONALD R. YOUNG; GAIUS R. SHAVER; ELISE PENDALL; MEAGAN B. CLEARY · 2008