Frank Day

Ph.D. in Ecology, University of Georgia, (1974)

M.S. in Botany, University of Georgia, (1971)

B.S. in Botany, University of Tennessee, (1969)

Research Interests

Plant ecology, biogeochemical cycling, ecosystems theory, wetlands ecology, ecology of coastal barrier islands, belowground ecology (root dynamics), effects of elevated atmospheric CO_2 ,global climate change

Articles

Day, F. P., Adams, E. C., Gibala-Smith, L. A., Graziani, D. J., McMillan, B., Sedghi, N., Shafer, J. and Smith, M. (2018). Determining change in coastal barrier island dune vegetation following a decade of nitrogen fertilization. Journal of Coastal Research 34 (5) , pp. 1100-1104.

Bain, J. C.., Day, F. P. and Butnor, J. R.. (2017). Experimental Evaluation of Several Key Factors Affecting Root Biomass Estimation by 1500 MHz Ground-Penetrating Radar. Remote Sensing 9 (12).

Smith, M. and Day, F. P. (2017). Groundwater thresholds for root decomposition and the relation to barrier island plant communities. Wetlands 37 (5) , pp. 851-860.

Graziani, D. and Day, F. P. (2015). Thresholds of change in decomposition rates along a dune/swale transect on a Virginia barrier island. Journal of Coastal Research 31 , pp. 148-154.

Hungate, B., Dijkstra, P., Wu, Z., Duval, B., Day, F. P., Johnson, D., Megonigal, P., Brown, A. and Garland, J. (2013). Cumulative response of ecosystem carbon and nitrogen stocks to chronic CO2 exposure in a subtropical oak woodland. New Phytologist 200 , pp. 753-766.

Stiling, P., Moon, D., Rossi, A., Forkner, R., Hungate, B., Day, F. P., Schroeder, R. and Drake, B. (2013). Direct and legacy effects of long-term elevated CO2 on fine root growth and plant-herbivore interactions. New Phytologist 200 , pp. 788-795.

Hungate, B., Day, F. P., Dijkstra, P., Duval, B., Hinkle, C., Langley, J., Megonigal, J., Stiling, P., Johnson, D. and Drake, B. (2013). Fire, hurricane and carbon dioxide: effects onnet primary production of a subtropical woodland. New Phytologist 200 , pp. 767-777.

Day, F. P., Schroeder, R., Stover, D., Pagel Brown, A., Dilustro, J., Butnor, J., Duval, B., Hungate, B., Dijkstra, P., Siler, T., Hinkle, R. and Drake, B. (2013). The effects of 11 yr of CO2 enrichment on roots in a Florida scrub oak ecosystem. New Phytologist 200 , pp. 778-777.

McMillan *, B. A. and Day, F. P. (2010). Microenvironment and plant assemblage structure on Virginia's barrier islands. Northeastern Naturalist 17 , pp. 473-492.

Stover *, D. B., Day, F. P., Drake, B. G. and Hinkle, C. R. (2010). The effects of elevated atmospheric CO_2 on fine root productivity, mortality, and survivorship in a scrub-oak ecosystem at Kennedy Space Center, Florida. Environmental and Experimental Botany 69 , pp. 214-222.

Pagel Brown, A. L., Day, F. P. and Stover, D. B. (2009). Fine root biomass estimates from minirhizotron imagery in a Florida scrub-oak ecosystem: spatial distribution and nutrient limitations. Plant and Soil 317 , pp. 145-153.

Pagel Brown, A. L., Garland, J. L. and Day, F. P. (2009). Physiological profiling of soil microbial communities in a Florida scrub-oak ecosystem: spatial distribution and nutrient limitations. Microbial Ecology 57 , pp. 14-24.

Stover, D. B., Day, F. P., Butnor, J. R. and Drake, B. G. (2007). Effect of elevated CO_2 on coarse-root biomass in Florida scrub detected by ground-penetrating radar. Ecology 88 , pp. 1328-1334.

Pagel Brown, A. L., Day, F. P., Hungate, B. A., Drake, B. G. and Hinkle, C. R. (2007). Root biomass and nutrient dynamics in a scrub-oak ecosystem under the influence of elevated atmospheric CO_2. Plant and Soil 292 , pp. 219-232.

Crawford, E. R., Day, F. P. and Atkinson, R. B. (2007). The influence of environment and substrate quality on root decomposition in naturally regenerating and restored Atlantic white cedar wetlands. Wetlands 27 , pp. 1-11.

Heyel, S. M. and Day, F. P. (2006). Long-term residual effects of nitrogen addition on a barrier island dune ecosystem. J. Torrey Botanical Society 133 , pp. 297-303.

Hungate, B. A., Johnson, D. W., Dijkstra, P., Hymus, G., Stiling, P. D., Megonigal, J. P., Pagel, A., Moan, J. L., Day, F. P., Li, J., Hinkle, C. R. and Drake, B. G. (2006). Nitrogen cycling during seven years of atmospheric CO_2 enrichment in a scrub oak woodland. Ecology 87 , pp. 26-40.

Day, F. P., Stover, D. B., Pagel, A. L., Hungate, B. A., Dilustro, J. J., Herbert, T., Drake, B. G. and Hinkle, C. R. (2006). Rapid root closure after fire limits fine root responses to elevated atmospheric CO_2 in a scrub oak ecosystem in central Florida, USA. Global Change Biology 12 , pp. 1047-1053.

Day, F. P., Conn, C., Crawford, E. and Stevenson, M. (2004). Long-term effects of nitrogen fertilization on plant community structure on a coastal barrier island dune chronosequence. Journal of Coastal Research 20 , pp. 722-730.

Rodgers, H. L., Day, F. P. and Atkinson, R. (2004). Root dynamics in restored and naturally regenerated Atlantic white cedar wetlands . Restoration Ecology 16 , pp. 401-411.

Day, F. P. (2004). The roots of the carbon cycle: global climate change and the unseen world belowground. Quest 7 (2) , pp. 8-12.

Book Chapters

Batzer, D., Day, F. P., Duever, M. and Golladay, S. (2012). Large swamp complexes in the southeastern U.S. in Wetland Habitats of North America: Ecology and Conservation Concerns Wetland Habitats of North America: Ecology and Conservation Concerns Berkeley, CA: University of California Press.

Butnor, J. and Day, F. P. (2012). Using ground penetrating radar to detect roots and estimate biomass. Measuring Roots Springer .

Butnor, J. R., Stover, D. B., Roth, B., Johnsen, K. H., Day, F. P. and McInnis, D. (2008). Using ground-penetrating radar to estimate tree root mass: comparing results from two Florida surveys in Handbook of Agricultural Geophysics (pp. 352-359) London: CRC Press.

Presentations

Smith, M. and Day, F. P. ( 2015). Belowground decomposition rate thresholds and their relationship to plant community state change along a Virginia barrier island dune/swale transect. Poster All Scientist Meeting Estes Park, CO.

Day, F. P. ( 2015). Fostering a diverse LTER network: strategies for diversity planning and mentoring. Poster All Scientists Meeting Estes Park, CO.

Adams, E. C. and Day, F. P. ( 2015). Blue carbon in freshwater/brackish marshes on the barrier islands of Virginia: aboveground net primary productivity and carbon pools Poster Ecological Society of America Baltimore, MD.

Smith, M. and Day, F. P. ( 2015). Belowground decomposition rate thresholds and their relationship to plant community state change along a Virginia barrier island dune/swale transect. Poster Ecological Socity of America Baltimore, MD.

Smith, M. and Day, F. P. ( 2015). Belowground decomposition rate thresholds and their relationship to plant community state change along a Virginia barrier island dune/swale transect. Oral Presentation Society of Wetland Scientists Providence, RI.

Adams, E. C. and Day, F. P. ( 2014). Blue carbon in coastal freshwater marshes on the barrier islands of Virginia: aboveground carbon pools Oral Presentation Association of Southeastern Biologists Spartanberg, SC.

Sedghi, N. M. and Day, F. P. ( 2014). Blue carbon in coastal freshwater marshes on the barrier islands of Virginia: belowground carbon pools Oral Presentation Association of Southeastern Biologists Spartenberg, SC.

Bain, J., Day, F. P. and Butnor, J. ( 2014). Optimizing ground-penetrating radar for measurement of coarse root biomass and its application in determining elevated CO2 legacy effects in an 11-year Florida experiment Oral Presentation Ecological Society of America Sacramento, CA.

Adams, E. C. and Day, F. P. ( 2014). Blue carbon in coastal freshwater marshes on the barrier islands of Virginia: aboveground carbon pools Poster Joint Aquatic Sciences Meeting Portland, OR.

Sedghi, N. M. and Day, F. P. ( 2014). Blue carbon in coastal freshwater marshes on the barrier islands of Virginia: belowground carbon pools Oral Presentation Joint Aquatic Sciences Meeting Portland, OR.

Colon-Guad, C. and Day, F. P. ( 2014). Undergraduate Mentoring at SFS and SWS: Increasing Diversity in the Next Generation of Aquatic Scientists Poster Joint Aquatic Sciences Meeting Portland, OR.

Bain, J., Day, F. P. and Butnor, J. ( 2014). Optimizing ground-penetrating radar for measurement of coarse root biomass and its application in determining elevated CO2 legacy effects in an 11-year Florida experiment Poster TES-DOE Meeting Potomac, MD.

Bain, J., Day, F. P. and Butnor, J. ( 2013). Optimizing groundpenetrating radar for measurement of coarse root dynamics Poster INTECOL Meeting London, England.

Bain, J., Day, F. P. and Butnor, J. ( 2013). Optimizing ground penetrating radar for measurement of coarse root dynamics Poster TES Meeting Potomoc, MD.

Graziani, D. and Day, F. P. ( 2012). Thresholds of change in decomposition rates along a dune/swale transect on a Virginia barrier island Oral Presentation ASB Athens, GA.

Adams, E. and Day, F. P. ( 2012). Blue carbon in freshwater marshes on the barrier islands of Virginia Poster LTER All Scientists Meeting Estes Park, CO.

Graziani, D. and Day, F. P. ( 2012). Thresholds of change in decomposition rates along a dune/swale transect on a Virginia barrier island Poster LTER All Scientists Meeting Estes Park, CO.

Schroeder *, R., Day, F. P., Stover, D., Brown, A., Butnor, J., Hinkle, R. and Drake, B. ( 2010). Root biomass in a Florida scrub-oak ecosystem after 11 years of CO2 enrichment ASB Meeting Asheville, NC.

Schroeder *, R., Day, F. P., Stover, D., Brown, A., Butnor, J., Drake, B. and Hinkle, R. ( 2010). Root biomass estimated by minirhizotrons and ground-penetrating radar after 11 years of atmospheric CO2 enrichment in a Florida scrub ecosystem ESA Meeting Pittsburg, PA.

Day, F. P., Schroeder *, R., Stover *, D., Brown *, A., Dilustro *, J., Butnor, J., Duval, B., Hungate, B., Dijkstra, P., Siler, T., Hinkle, R. and Drake, B. ( 2010). Effects of 11 years of elevated atmospheric CO2 enrichment on roots Smithsonian Symposium Edgewater, Maryland.

Schroeder, R. E., Day, F. P., Stover, D. B., Brown, A. L.P.., Butnor, J. R., Siler, T. J., Dijkstra, P., Hungate, B. A., Hinkle, C. R. and Drake, B. G. ( 2009). The long-term effects of elevated atmospheric CO_2 on plant biomass in a Florida scrub-oak ecosystem ASB Meeting Birmingham, AL.

Schroeder, R. E., Day, F. P., Stover, D. B., Brown, A. L.P.., Butnor, J. R. and Drake, B. G. ( 2009). The long-term effects of elevated atmospheric CO_2 on root biomass in a Florida scrub-oak ecosystem ESA Meeting Albuquerque, NM.

Megonigal, J. P., Drake, B. G., Day, F. P., Dijkstra, P., Hayek, L. C., Hinkle, C. R., Hungate, B. A., Johnson, D. P., Li, J. H., Peresta, G., Seiler, T. and Stover, D. B. ( 2009). The response of ecosystem processes to 10 years of elevated atmospheric CO_2 in a scrub oak forest and 22 years in a tidal wetland ESA Meeting Albuquerque, NM.

Day, F. P. ( 2009). Ecosystem Responses to 11 Years of Exposure to Elevated Atmospheric CO_2: Roots and Technology at Kennedy Space Center, Florida Invited Seminar Norfolk, VA.

Shafer, J. K. and Day, F. P. ( 2009). Interisland variability of dune plant community structure on Virginia's barrier islands LTER All Scientists Meeting Estes Park, Colorado.

Schroeder, R. E., Day, F. P., Stover, D. B., Brown, A. L.P.., Butnor, J. R. and Drake, B. G. ( 2009). The long-term effects of elevated atmospheric CO_2 on root biomass in a Florida scrub-oak ecosystem Penn State Biology Symposium State College, PA.

Schroeder, R. E., Day, F. P., Stover, D. B., Butnor, J. R. and Drake, B. G. ( 2008). Coarse root biomass and architecture under elevated CO_2 in a Florida scrub-oak ecosystem determined by ground penetrating radar ASB Meeting Spartanburg, SC.

Bleha, S. B. and Day, F. P. ( 2008). Inter-island variability in above and belowground plant biomass in interior marshed on the Virginia barrier islands ASB Meeting Spartanburg, SC.

shafer, J. K. and Day, F. P. ( 2008). Interisland variability of dune plant community biomass on Virginia's Eastern Shore ASB Meeting Spartanburg, SC.

McMillan, B. and Day, F. P. ( 2008). Islands within islands: the pimple dunes of the Virginia Coast Reserve BSA Meeting Vancouver, BC, Canada.

McMillan, B. and Day, F. P. ( 2007). Spatial analyses of plant assemblages and microhabitats on the pimple dunes of Virginia's barrier islands ASB Meeting Columbia, SC.

Stover, D. B., Day, F. P., Butnor, J. R., Hinkle, C. R. and Drake, B. G. ( 2007). The effects of elevated atmospheric CO_2 on fine and coarse root growth and biomass allocation in a scrub-oak ecosystem at Kennedy Space Center, Florida ASB Meeting Columbia, SC.

Stover, D. B., Day, F. P., Butnor, J. R., Hinkle, C. R. and Drake, B. G. ( 2007). Effects of elevated atmospheric CO_2 on root dynamics, biomass, and architecture in a scrub-oak ecosystem at Kennedy Space Center, Florida USA ESA Meeting San Jose, CA.

Butnor, J. R., Johnsen, K. H., Stover, D., Day, F. P., McInnis, D., Anderson, P. and Samuelson, L. ( 2007). Using ground-penetrating radar to study belowground forest productivity USFS Southern Research Station All Scientists Meeting Lake Lanier, GA.

McMillan, B. and Day, F. P. ( 2006). Determinants of floristic structure on the "pimple" dunes of Virginia's barrier islands ASB Meeting Gatlinburg, TN.

Pagel, A. L., Garland, J. L., Day, F. P., Hungate, B. A., Megonigal, P., Carney, K. and Drake, B. G. ( 2006). Microbial community function altered by elevated atmospheric CO_2 in Florida scrub oak soil and leaf litter ASB Meeting Gatlinburg, TN.

Stover, D. B., Day, F. P., Butnor, J. R. and Drake, B. G. ( 2006). Utilization of ground penetrating radar to quantify the effects of elevated atmospheric CO_2 on coarse roots in a scrub oak ecosystem at Kennedy Space Center, Florida USA ASB Meeting Gatlinburg, TN.

McMillan, B. and Day, F. P. ( 2006). The pimple dunes of Virginia's barrier islands Botanical Society of America Meeting Chico, CA.

Stover, D. B., Day, F. P., Butnor, J. R. and Drake, B. G. ( 2006). Utilization of ground penetrating radar to quantify the effects of elevated atmospheric CO_2 on coarse roots in a scrub oak ecosystem at Kennedy Space Center, Florida USA ESA Meeting Memphis, TN.

McMillan, B. and Day, F. P. ( 2006). The pimple dunes of Virginia's barrier islands LTER All Scientists Meeting Estes Park, Colorado.

Stover, D. B., Day, F. P., Butnor, J. R. and Drake, B. G. ( 2006). Utilization of ground penetrating radar to quantify the effects of elevated atmospheric CO_2 on coarse roots in a scrub oak ecosystem at Kennedy Space Center, Florida USA Soil Science Society of America Meeting Indianapolis, IN.

Pagel, A. L., Garland, J. L., Day, F. P., Hungate, B. A. and Drake, B. G. ( 2005). Mocrobial community function in elevated atmospheric CO_2 in Florida, USA scrub oak soil and leaf litter ESA and INTECOL Meeting Montreal, Quebec, Canada.

Day, F. P., Stover, D. B., Pagel, A. L., Hungate, B. A. and Drake, B. G. ( 2005). Seven years of fine root regrowth under elevated atmospheric CO_2 following fire in a scrub oak ecoysytem in central Florida, USA ESA and INTECOL Meeting Montreal, Quebec, Canada.

Pagel, A. L., Day, F. P., Butnor, J. R. and Drake, B. G. ( 2005). Utilization of ground penetrating radar to quantify the effects of elevated atmospheric CO_2 on coarse roots in a scrub oak ecosystem at Kennedy Space Center, Florida USA ESA and INTECOL Meeting Montreal, Quebec, Canada.

McMillan, B. and Day, F. P. ( 2005). Vegetation dynamics of barrier island "pimples" on the Virginia Coast Reserve LTER site ESA and INTECOL Meeting Montreal, Quebec, Canada.

Pagel, A. L., Day, F. P. and Stover, D. B. ( 2004). Comparison of root length and biomass as indicators of C accumulation in an elevated CO_2 study of Florida scrub-oak on Merritt Island, Florida ESA Meeting Portland, Oregon.

Stover, D. B., Day, F. P., Pagel, A. L., Bacalan, V. P. and Drake, B. G. ( 2004). The influence of elevated CO_2 and soil depth on fine root dynamics in a Florida oak-scrub ecosystem ESA Meeting Portland, Oregon.

McMillan, B. and Day, F. P. ( 2004). Vegetation dynamics of barrier island "pimples" on the Virginia Coast Reserve LTER site ESA Meeting Portland, Oregon.

• Eminent Scholar, Old Dominion University
• Partnership Award (Awarded to Blackwater Ecologic Preserve Committee), Nature Conservancy
• President, Society of Wetland Scientists 2002-2003,
• 2012: Champion of Diversity Award, Old Dominion University
• 2011: Fellow, Society of Wetland Scientists, Society of Wetland Scientists
• 2007: Advisor of 2007 BSA SE Section Student Award winner, Dan Stover, SE Section, Botanical Society of America
• 2007: Advisor of 2007 Odum Award finalist, Dan Stover, Ecological Society of America
• 2006: Advisor of 2006 BSA SE Section Student Award winner Brett McMillan, SE Section, Botanical Society of America
• 2006: President's Service Award, Society of Wetland Scientists
• 1996: President's Service Award, Society of Wetland Scientists
• 1994: Advisor of 1994 Eugene P. Odum Award winner, Christine Conn, Ecological Society of America
• 1990: President, Association of Southeastern Biologists 1990-1991,