Charles E. Flower, PhD

Treesearch Publications

• John Butnor, Cornelia Wilson, Melike Bakır, Anthony W. D’Amato, Charles E. Flower, Christopher F. Hansen, Stephen R. Keller, Kathleen Knight, Paula Murakami. 2024. Cold Tolerance Assay Reveals Evidence of Climate Adaptation Among American Elm (Ulmus americana L.) Genotypes
• Xing Wei, Jinnuo Zhang, Anna O. Conrad, Charles E. Flower, Cornelia Wilson, Nancy L. Hayes-Plazolles, Ziling Chen, Zhihang Song, Songlin Fei, Jian Jin. 2023. Machine learning-based spectral and spatial analysis of hyper- and multi-spectral leaf images for Dutch elm disease detection and resistance screening
• Kathleen Knight, Charles E. Flower, Jason S. Kilgore, Alejandro A. Royo, Timothy Fox, Rachel H. Kappler, Brian M. Hoven, Joshua Wigal, Jordan D. Bernard, Robert P. Long. 2023. Ash tree decline and mortality in Ohio and the Allegheny National Forest in Pennsylvania
• Danielle Mikolajewski, Vince D'Amico, Nancy Falxa Sonti, Cornelia Wilson, Charles E. Flower, Lara Roman, Tara L.E. Trammell. 2022. Restoring the iconic Ulmus americana to urban landscapes: Early tree growth responds to aboveground conditions
• Alexander Fotis, Charles E. Flower, Jeff W. Atkins, Cornelia Wilson, Amanda D. Rodewald, Stephen Matthews. 2022. The short-term and long-term effects of honeysuckle removal on canopy structure and implications for urban forest management
• Samuel P. Reed, Alejandro A. Royo, Alexander T. Fotis, Kathleen Knight, Charles E. Flower, Peter S. Curtis. 2022. The long‐term impacts of deer herbivory in determining temperate forest stand and canopy structural complexity
• Eyyüb Y. Kıbış, İ Esra Büyüktahtakın, Robert G. Haight, Najmaddin Akhundov, Kathleen Knight, Charles E. Flower. 2021. A Multistage Stochastic Programming Approach to the Optimal Surveillance and Control of the Emerald Ash Borer in Cities
• Charles E. Flower, Cornelia Wilson, Kathleen Knight, Keith Woeste, James M. Slavicek. 2020. Back from the Brink: Forest Service Efforts to Create Dutch Elm Disease Tolerant Trees for Use in Urban and Rural Restoration
• Kathleen Knight, Rachel H. Kappler, Karen V Root, Jennifer Koch, Charles E. Flower. 2020. Monitoring of Ash Mortality Patterns Informs Emerald Ash Borer (EAB) Resistance Breeding Efforts: Integrated Pest Management for EAB
• Charles E. Flower, Jennifer E. Dalton, Christopher J. Whelan, Joel S. Brown, Miquel A. Gonzalez-Meler. 2019. Patch use in the arctic ground squirrel: effects of micro-topography and shrub encroachment in the Arctic Circle
• Kathleen Knight, Charles E. Flower, Mark D. D. Nelson. 2019. A Forest Death in Three Acts: From Woodpeckers to Water, the Emerald Ash Borer's Effects are Widespread
• Charles E. Flower, Douglas J. Lynch, Kathleen Knight, Miquel A.  Gonzalez-Meler. 2018. Biotic and Abiotic Drivers of Sap Flux in Mature Green Ash Trees (Fraxinus pennsylvanica) Experiencing Varying Levels of Emerald Ash Borer (Agrilus planipennis) Infestation
• Charles E. Flower, Jeremie Fant, Sean Hoban, Kathleen Knight, Laura Steger, Elijah Aubihl, Miquel Gonzalez-Meler, Stephen Forry, Andrea Hille, Alejandro A. Royo. 2018. Optimizing conservation strategies for a threatened tree species: In situ conservation of white ash (Fraxinus americana L.) genetic diversity through insecticide treatment
• Michael P. Ricketts, Charles E. Flower, Kathleen Knight, Miquel A. Gonzalez-Meler. 2018. Evidence of Ash Tree (Fraxinus spp.) Specific Associations with Soil Bacterial Community Structure and Functional Capacity
• C.C. Pinchot, D.J. Lodge, R. Minocha, T.W. Noon, V. D’Amico, Charles E. Flower, K.M. Knight, J. Slavicek. 2017. Using American elm in mixed-species plantings to restore above- and below-ground function to degraded riparian buffers
• Charles E. Flower, Elijah Aubihl, Jeremie Fant, Stephen Forry, Andrea Hille, Kathleen Knight, William K. Oldland, Alejandro A. Royo, Richard M. Turcotte. 2017. In-situ genetic conservation of white ash (Fraxinus americana) at the Allegheny national forest
• Cornelia Wilson, Charles E. Flower, Kathleen Knight, C. Marks, Rakesh Minocha, D. Lesser, Keith Woeste, Paul Schaberg, B. Baldwin, D.M. Delatte, Timothy Fox, Nancy L. Hayes-Plazolles, B. Held, Kirsten Lehtoma, Stephanie Long, S. Mattix, A. Sipes, J.M. Slavicek. 2017. Development of new Dutch Elm disease-tolerant selections for restoration of the American Elm in urban and forested landscapes
• Charles E. Flower, Cornelia Wilson, Jim Slavicek. 2017. Restoring ecosystem resilience to urban forests using Dutch elm disease-tolerant American elm trees
• Charles E. Flower, Jim Slavicek, Dale Lesser, Steven Eshita, Cornelia Wilson. 2017. Canopy decline assessment in American elm after inoculation with different doses of Ophiostoma ulmi and O. novo-ulmi
• Charles E. Flower, Nancy L. Hayes-Plazolles, Cristina Rosa, Jim Slavicek. 2017. Elm yellows: a widespread and overlooked killer of elm trees across the United States
• Cornelia Wilson, Kathleen Knight, Linda Haugen, Charles E. Flower, Jim Slavicek. 2017. Proceedings of the American elm restoration workshop 2016
• K.C. Costilow, Kathleen Knight, Charles E. Flower. 2017. Disturbance severity and canopy position control the radial growth response of maple trees (Acer spp.) in forests of northwest Ohio impacted by emerald ash borer (Agrilus planipennis)
• Charles E. Flower, Jennifer E. Dalton, Kathleen Knight, Marie Brikha, Miquel A. Gonzalez-Meler. 2015. To treat or not to treat: Diminishing effectiveness of emamectin benzoate tree injections in ash trees heavily infested by emerald ash borer
• Charles E. Flower, Lawrence C. Long, Kathleen Knight, Joanne Rebbeck, Joel S. Brown, Miquel A. Gonzalez-Meler, Christopher J. Whelan. 2014. Native bark-foraging birds preferentially forage in infected ash (Fraxinus spp.) and prove effective predators of the invasive emerald ash borer (Agrilus planipennis Fairmaire)
• Kathleen Knight, Britton P. Flash, Rachel H. Kappler, Joel A. Throckmorton, Bernadette Grafton, Charles E. Flower. 2014. Monitoring ash (Fraxinus spp.) decline and emerald ash borer (Agrilus planipennis) symptoms in infested areas
• Charles E. Flower, Kathleen Knight, Joanne Rebbeck, Miquel A. Gonzalez-Meler. 2013. The relationship between the emerald ash borer (Agrilus planipennis) and ash (Fraxinus spp.) tree decline: Using visual canopy condition assessments and leaf isotope measurements to assess pest damage
• Charles E. Flower, Kathleen Knight, Miquel Gonzalez-Meler. 2013. Impacts of the emerald ash borer (Agrilus planipennis Fairmaire) induced ash (Fraxinus spp.) mortality on forest carbon cycling and successional dynamics in the eastern United States
• Charles E. Flower, Douglas J. Lynch, Kathleen Knight, Miquel A. Gonzales-Meler. 2011. EAB induced tree mortality impacts ecosystem respiration and tree water use in an experimental forest

• Project
  

  Early Detection and Accurate Diagnosis of Invasive Forest Pests with Spectral Imaging and DNA Barcoding

  https://research.fs.usda.gov/nrs/projects/bil-spectral-imaging-forest-pests
  Station

  Northern Research Station
• Project
  

  Strategies to Manage the Loss of Ash and Elm Trees

  https://research.fs.usda.gov/nrs/projects/ashelmloss
  Station

  Northern Research Station

Multimedia

• Podcast
  

  Forestcast Season 2: Backcross - Episode 1: Tree Species Restoration & Resistance Breeding

  https://research.fs.usda.gov/nrs/products/multimedia/podcasts/forestcast-season-2-backcross-episode-1-tree-species-restoration

• University of Illinois at Chicago, Ph.D., Biological Sciences, 2013
• The Ohio State University, M.S., Ecology, Evolution and Organismal Biology, 2007
• Lake Forest College, B.A., Biology and History, 2004