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ARS Home Plains Area Fort Collins, Colorado Center for Agricultural Resources Research Water Management and Systems Research People







David Barnardheadline bar /ARSUserFiles/30123020/images/DaveBarnard2.jpg
**Dr. David Barnard (Dave)**
Research Agroecologist
CONTACT INFORMATION
ADDRESS: USDA-ARS Water Management Research Unit2150 Centre Avenue, Bldg D, Suite 320 Fort Collins, CO 80526
PHONE: (970) 492-7404FAX: (970) 492-7408
E-MAIL: David.Barnard@usda.gov
**Research********Degrees********Publications**  **Research Interests:** My research interests lie at the intersection of agriculture, ecology, and hydrology. I am especially interested in drought and the “life-cycle” of water in the western United States including water resource variability from mountain snowpack and rainfall and its impacts on agricultural production, ecohydrological processes, and surface mass and energy exchange. I use a variety of empirical techniques from my background in plant physiology, micrometeorology, and remote sensing. I also use various process-based models at spatial-scales ranging from the individual plant, to agroecosystems, watersheds, and the continent.  **Degrees:** Ph.D.
Plant Physiology and Micrometeorology
2014
Colorado State University, CO, USAM.S.
Forest Physiology and Ecology
2010
Oregon State University, OR, USAB.S.
Horticulture
2006
University of Florida, FL, USA  **Postdoctoral Training:** 2016-2019: Great Basin rangeland restoration ecology. *US Geological Survey, Forest and Rangeland Ecosystem Science Center*. 2014-2016: Montane and subalpine ecosystem ecology, snow hydrology. *Institute of Arctic and Alpine Research and Boulder Creek Critical Zone Observatory, University of Colorado, Boulder*.   **Publications:** Shriver R.K., C.M. Andrews, R.S. Arkle, **D.M. Barnard**, M.C. Duniway, M.J. Germino, D.S. Pilliod, D.A. Pyke, J.L. Welty, J.B. Bradford. 2019. Transient population dynamics impede landscape-level dryland restoration. *Ecology Letters*(in press)*.*
**Barnard, D.M.**, M.J. Germino, D.S. Pilliod, C. Applestein, B.E. Davidson, M.R. Fisk, R.S. Arkle. 2019. Can’t see the random forest for the decision trees; selecting predictive models as decision support tools in ecological restoration. *Restoration Ecology*(in press).
**Barnard, D.M.**, M.J. Germino, D. Pyke, D Pilliod, M. Duniway, J. Bradford, R Arkle, J Welty, B. Shriver. 2019. Soil characteristics are associated with the recovery of big sagebrush canopy structure after disturbance. *Ecosphere* (in press)*.*
Davidson, B.E., M.J. Germino, **D.M. Barnard**, C. Applestein, M.R. Fisk. 2019. Landscape and organismal factors affecting sagebrush-seedling transplant survival after megafire restoration? *Restoration Ecology*(in press)*.*
**Barnard, D.M.**, J.F. Knowles, H.R. Barnard, M.L. Goulden, J. Hu, M.E. Litvak, N.P. Molotch. 2018. Reevaluating growing season length controls on net ecosystem production in evergreen conifer forests. *Nature Scientific Reports,*2018(8).
Germino, M.J*., **D.M. Barnard***, B.E. Davidson, R.S. Arkle, D.S. Pilliod, M.R. Fisk, C. Applestein. Thresholds and hotspots for shrub restoration following a heterogeneous megafire. *Landscape Ecology,*33(7): 1177-1194.
**Barnard, D.M.**, H.R. Barnard, and N.P. Molotch. 2016. Topoclimate effects on growing season length and montane conifer growth in complex terrain. *Environmental Research Letters*, 12(6): 064003.
**Barnard, D.M.** and W.L. Bauerle. Seasonal variation in canopy aerodynamics and the sensitivity of transpiration estimates to wind velocity in broadleaved deciduous species. *Journal of Hydrometeorology,*17(12): 3029-3043.
Molotch, N.P., **D.M. Barnard**, and S.P. Burns, T.H. Painter. Characterizing spatio-temporal variations in snow pack microstructure under a subalpine forest canopy. *Water Resources Research,*52(9): 7513-7522.
Winchell, T., **D.M. Barnard,**R.K. Monson, S.P. Burns, and N.P. Molotch. 2016. Earlier snowmelt reduces atmospheric carbon uptake in mid-latitude subalpine forests. *Geophysical Research Letters,*43(15): 8160-8168.
**Barnard, D.M.** and W.L. Bauerle. 2015. Species-specific irrigation scheduling with a spatially explicit biophysical model: a comparison to substrate moisture sensing with insight into simplified physiological parameterization. *Agricultural and Forest Meteorology*, 214-215: 48-59.
Bauerle, T.L., W.L. Bauerle, M. Goebel, and **D.M. Barnard**. 2013. Root system distribution influences substrate moisture measurements in containerized ornamental tree species. *Hort Technology*, 23(6): 754-759.
**Barnard, D.M.** and W.L. Bauerle. 2013. The implications of minimum stomatal conductance on modeling water flux in forest canopies. *Journal of Geophysical Research – Biogeosciences*, 118(3): 1322-1333.
Bauerle, W.L., A.B. Daniels, and **D.M. Barnard.** 2013. Carbon and water flux responses to physiology by environment interactions: a sensitivity analysis of variation in climate on photosynthetic and stomatal parameters. *Climate Dynamics*, 42: 2539-2554.
Daniels, A.B., **D.M. Barnard**, P.L. Chapman, and W.L. Bauerle. 2012. Optimizing substrate moisture measurements in containerized nurseries. *HortScience*, 47: 98-104.
**Barnard, D.M.**, B. Lachenbruch, K.A. McCulloh, P. Kitin, and F.C. Meinzer. 2012. Do ray cells provide a pathway for radial water movement in the stems of conifer trees? *American Journal of Botany*, 100(2): 322-331.
**Barnard, D.M.**, F.C. Meinzer, B.L. Lachenbruch, K.A. McCulloh, D.M. Johnson, and D. R. Woodruff. 2011. Climate-related trends in sapwood biophysical properties in two conifers: avoidance of hydraulic dysfunction through coordinated adjustments in xylem efficiency, safety and capacitance. *Plant, Cell & Environment*, 34: 643-654.


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