Southern
Research Station

Education

Ph.D. Forestry and Evolutionary Ecology and Behavior Biology in Forest Ecology and Silviculture, 2014

Michigan State University

M.S. Forest Science in Silviculture, 2009

Colorado State University

B.S Forestry in Fire Science, 2007

Colorado State University

Awards and Recognition

Manierre Award, 2019

Award for research conducted with the Huron Mountain Wildlife Foundation

Silviculture Prize for Best Publication (co-author), 2018

Institute of Chartered Foresters

Publications

• Chen, Xiongwen ; Bowman, Kimberly A.; Willis, John L. 2023. Critical slowing down in cone production of longleaf pine trees.
• Willis, J.L. ; Renninger, H.J. ; Schnake, D.K. ; Alexander, H.D. . 2023. Xerophytic hardwood retention promotes competition over facilitation in longleaf pine woodlands in the absence of fire.
• Chen, Xiongwen ; Willis, John L.; Bowman, Kimberly A. 2022. Assessing the influence of climate on cone production of longleaf pine forests.
• Willis, John L.; Blazier, Michael A. 2022. Competition intensity varies with hardwood species identity and constrains stand-level productivity in southeastern pine–hardwood mixtures compared to loblolly pine monocultures.
• Self, Andrew B.; Willis, John L. 2022. Eleven-year effects of mechanical site preparation on oaks planted on former agricultural fields.
• Chen, Xiongwen ; Willis, John L. 2022. Interactions of biosphere and atmosphere within longleaf pine restoration areas.
• Hacket‐Pain, Andrew ; Foest, Jessie J.; Pearse, Ian S.; LaMontagne, Jalene M.; Koenig, Walter D.; Vacchiano, Giorgio ; Bogdziewicz, Michał ; Caignard, Thomas ; Celebias, Paulina ; Dormolen, Joep ; Fernández‐Martínez, Marcos ; Moris, Jose V; Palaghianu, Ciprian ; Pesendorfer, Mario ; Satake, Akiko ; Schermer, Eliane ; Tanentzap, Andrew J.; Thomas, Peter A.; Vecchio, Davide ; Wion, Andreas P.; Wohlgemuth, Thomas ; Xue, Tingting ; Abernethy, Katharine ; Aravena Acuña, Marie‐Claire ; Daniel Barrera, Marcelo ; Barton, Jessica H.; Boutin, Stan ; Bush, Emma R.; Donoso Calderón, Sergio ; Carevic, Felipe S.; Castilho, Carolina Volkmer; Manuel Cellini, Juan ; Chapman, Colin A.; Chapman, Hazel ; Chianucci, Francesco ; Costa, Patricia ; Croisé, Luc ; Cutini, Andrea ; Dantzer, Ben ; Justin DeRose, R. ; Dikangadissi, Jean‐Thoussaint ; Dimoto, Edmond ; Fonseca, Fernanda Lopes; Gallo, Leonardo ; Gratzer, Georg ; Greene, David F.; Hadad, Martín A.; Herrera, Alejandro Huertas; Jeffery, Kathryn J.; Johnstone, Jill F.; Kalbitzer, Urs ; Kantorowicz, Władysław ; Klimas, Christie A.; Lageard, Jonathan G. A.; Lane, Jeffrey ; Lapin, Katharina ; Ledwoń, Mateusz ; Leeper, Abigail C.; Vanessa Lencinas, Maria ; Lira‐Guedes, Ana Cláudia; Lordon, Michael C.; Marchelli, Paula ; Marino, Shealyn ; Schmidt Van Marle, Harald ; McAdam, Andrew G.; Momont, Ludovic R. W.; Nicolas, Manuel ; Oliveira Wadt, Lúcia Helena; Panahi, Parisa ; Martínez Pastur, Guillermo ; Patterson, Thomas ; Luis Peri, Pablo ; Piechnik, Łukasz ; Pourhashemi, Mehdi ; Espinoza Quezada, Claudia ; Roig, Fidel A.; Peña Rojas, Karen ; Micaela Rosas, Yamina ; Schueler, Silvio ; Seget, Barbara ; Soler, Rosina ; Steele, Michael A.; Toro‐Manríquez, Mónica ; Tutin, Caroline E. G.; Ukizintambara, Tharcisse ; White, Lee ; Yadok, Biplang ; Willis, John L.; Zolles, Anita ; Żywiec, Magdalena ; Ascoli, Davide . 2022. MASTREE+: Time‐series of plant reproductive effort from six continents.
• Babl-Plauche, E.K. ; Alexander, H.D. ; Siegert, C.M. ; Willis, J.L. ; Berry, A.I. . 2022. Mesophication of upland oak forests: Implications of species-specific differences in leaf litter decomposition rates and fuelbed composition.
• Regmi, Arun ; Grebner, Donald ; Willis, John ; Grala, Robert K. 2022. Price premium requirements for growing higher quality pine sawtimber in even-aged systems in the southeastern United States.
• Willis, John L.; Self, Andrew B.; Siegert, Courtney M. 2022. Proceedings of the 21st Biennial Southern Silvicultural Research Conference.
• Regmi, Arun ; Grebner, Donald L.; Willis, John L.; Grala, Robert K. 2022. Sawmill willingness to pay price premiums for higher quality pine sawtimber in the southeastern United States.
• Willis, John L.; Sharma, Ajay ; Kush, John S. 2022. Seasonal biennial burning has negligible effects on longleaf pine basal area growth.
• Polinko, A.D. ; Willis, J.L. ; Sharma, A. ; Guldin, J.M. . 2022. Stand-level structural characteristics dictate hurricane resistance and resilience more than silvicultural regime in longleaf pine woodlands.
• Willis, John L.; Walters, Michael B.; Farinosi, Evan J. 2021. Can coppicing planted saplings improve the growing position of mid-tolerant northern hardwood tree species in harvest gaps?.
• Schnake, David K.; Roberts, Scott D.; Willis, John L.; Kushla, John D.; Munn, Ian A. 2021. Overstory retention and stock type impact survival and growth of underplanted shortleaf pine beneath a hardwood canopy.
• Willis, John L.; Sharma, Ajay ; Kush, John S. 2021. Seasonality of biennial burning has no adverse effects on mature longleaf pine survival or productivity.
• Willis, John L.; Schnake, David K.; DePerno, Christopher S.; Lashley, Marcus A.; Wetzstein, Branson ; Yow, Justin . 2021. Tree encroachment impacts on seed predator selection and seedling establishment in degraded pine woodlands.
• Willis, John L.; Harrington, Constance A.; Brodie, Leslie C.; Roberts, Scott D. 2021. Variable-density thinning promotes differential recruitment and development of shade tolerant conifer species after 17 years.
• Gordon, Jason ; Measells, Marc ; Willis, John ; Self, Brady . 2020. Comparing social media and postal mailings in forestry extension program marketing.
• Babl, Emily ; Alexander, Heather D.; Siegert, Courtney M.; Willis, John L. 2020. Could canopy, bark, and leaf litter traits of encroaching non-oak species influence future flammability of upland oak forests?.
• Walters, Michael B.; Farinosi, Evan J.; Willis, John L. 2020. Deer browsing and shrub competition set sapling recruitment height and interact with light to shape recruitment niches for temperate forest tree species.
• Henry, Jacob ; Willis, John L.;   Schnake, David K.; Roberts, Scott D.; Alexander, Heather D.;   Renninger, Heidi . 2020. Early impacts of midstory hardwoods and overstory density on longleaf pine seedling establishment on xeric sites.
• Gordon, Jason ; Measells, Marc ; Willis, John ; Self, Brady . 2020. Experiences from a forestry extension long-term impact evaluation.
• Clabo, David ; Gordon, Jason ; Brodbeck, Arnold ; Willis, John ; Tanger, Shaun ; Self, Andrew . 2020. Managing mixed stands for southern forest landowners: three family stories for decision-making assistance.
• Self, Andrew B.; Willis, John L.; Ezell, Andrew W. 2020. Oak regeneration success in operational shelterwood cuts: year two results.
• Regmi, Arun ; Grebner, Donald L.; Grala, Robert K.; Willis, John L. 2020. Preliminary evaluation of price premium required for growing higher quality loblolly and slash pines on extended rotation ages.
• Gordon, Jason S.; Willis, John L.; Grala, Robert K. 2020. Public and forest landowner attitudes towards longleaf pine ecosystem restoration using prescribed fire.
• Willis, John L.; Gordon, Jason S. ; Tanger, Shaun; Blazier, Michael A.; Self, Andrew B. ; Brodbeck, Arnold. 2019. Managing mixed stands: reassessing a forgotten stand type in the southeastern United States.
• Babl, Emily K.; Alexander, Heather D.; Siegert, Courtney M.; Willis, John L.; Berry, Andrew I. 2019. Species-specific mechanisms contributing to the mesophication of upland oak stands in the absence of fire.

Research Highlights

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