Todd Ristau, PhD

Treesearch Publications

• Lance A. Vickers, Alejandro A. Royo, Susan L. Stout, Todd Ristau, William K. Oldland, Benjamin O. Knapp, Lauren S. Pile, Andrea Hille. 2025. Evaluating the extent and severity of black cherry regeneration declines in eastern forests and exploring potential causes
• Alejandro A. Royo, Lance Vickers, Robert P. Long, Todd Ristau, Scott H. Stoleson, Susan L. Stout. 2021. The Forest of Unintended Consequences: Anthropogenic Actions Trigger the Rise and Fall of Black Cherry
• Todd Ristau, Alejandro A. Royo. 2020. Influence of stand age, soil attributes, and cover type on Rubus (Rosaceae) seed bank abundance
• Robert P. Long, Todd Ristau. 2020. Changes in Black Cherry Seed Production: Is Stand Age a Factor?
• Todd Ristau. 2019. Using herbicides to control interfering understories in the Allegheny hardwood stands, 2. Sharpening the tools in the toolbox
• Susan L. Stout, Patrick Brose, Helene Cleveland, Robert P. Long, Barbara McGuinness, Matthew Peters, Joanne Rebbeck, Todd Ristau, Alejandro A. Royo, Scott H. Stoleson, Scott Thomasma, Mark Twery, Sarah Wurzbacher. 2019. Fifty years of science-management cooperation from the SILVAH community of practice
• William McWilliams, Jim Westfall, Patrick Brose, Daniel C. C. Dey, Anthony W. D'Amato, Yvette L. Dickinson, Mary Ann Fajvan, Laura S. Kenefic, Christel C. Kern, Kenneth M. Laustsen, Shawn L. Lehman, Randall Morin, Todd Ristau, Alejandro A. Royo, Andrew M. Stoltman, Susan L. Stout. 2018. Subcontinental-scale patterns of large-ungulate herbivory and synoptic review of restoration management implications for midwestern and northeastern forests
• William McWilliams, Jim Westfall, Patrick Brose, Shawn L. Lehman, Randall Morin, Todd Ristau, Alejandro A. Royo, Susan L. Stout. 2017. After 25 years, what does the Pennsylvania Regeneration Study tell us about oak/hickory forests under stress?
• Todd Ristau. 2017. Control of hay-scented and New York ferns with Oust Xp® herbicide: Revisiting rate and timing required in mixed oak and northern hardwood stands
• William McWilliams, Jim Westfall, Patrick Brose, Daniel C. C. Dey, Mark A. Hatfield, Katherine Johnson, Kenneth M. Laustsen, Shawn L. Lehman, Randall Morin, Mark D. D. Nelson, Todd Ristau, Alejandro A. Royo, Susan L. Stout, Tom W. Willard, Christopher W. W. Woodall. 2015. A regeneration indicator for Forest Inventory and Analysis: history, sampling, estimation, analytics, and potential use in the midwest and northeast United States
• Todd Ristau, Susan L. Stout. 2014. Can cover data be used as a surrogate for seedling counts in regeneration stocking evaluations in northern hardwood forests?
• Cynthia Huebner, Jim Steinman, Todd Hutchinson, Todd Ristau, Alejandro A. Royo. 2014. The distribution of a non-native (Rosa multiflora) and native (Kalmia latifolia) shrub in mature closed-canopy forests across soil fertility gradients
• Tim Nuttle, Todd Ristau, Alejandro A. Royo. 2014. Long-term biological legacies of herbivore density in a landscape-scale experiment: forest understories reflect past deer density treatments for at least 20 years
• Alejandro A. Royo, Todd Ristau. 2013. Stochastic and deterministic processes regulate spatio-temporal variation in seed bank diversity
• Matthew D. Trager, Todd Ristau, Scott H. Stoleson, Robert L. Davidson, Robert E. Acciavatti. 2013. Carabid beetle responses to herbicide application, shelterwood seed cut and insect defoliator outbreaks
• Cynthia Huebner, Todd Hutchinson, Todd Ristau, Alejandro A. Royo, James Steinman. 2012. Documenting the Regional and local distribution of Kalmia latifolia and Rosa multiflora in West Virginia, Ohio, and Pennsylvania Forests along a soil fertility gradient
• Scott H. Stoleson, Todd Ristau, David S. deCalesta, Stephen Horsley. 2011. Ten-year response of a forest bird community to an operational herbicide-shelterwood treatment in Allegheny hardwoods
• Chandra Goetsch, Jennifer Wigg, Alejandro A. Royo, Todd Ristau, Walter P. Carson. 2011. Chronic over browsing and biodiversity collapse in a forest understory in Pennsylvania: Results from a 60 year-old deer exclusion plot
• Todd Ristau, Scott H. Stoleson, Stephen Horsley, David S. deCalesta. 2011. Ten-year response of the herbaceous layer to an operational herbicide-shelterwood treatment in a northern hardwood forest
• Tim Nuttle, Ellen H. Yerger, Scott H. Stoleson, Todd Ristau. 2011. Legacy of top-down herbivore pressure ricochets back up multiple trophic levels in forest canopies over 30 years
• Stephen Horsley, Scott Bailey, Todd Ristau, Robert P. Long, Richard Hallett. 2008. Linking environmental gradients, species composition, and vegetation indicators of sugar maple health in the northeastern United States
• Patrick Brose, Kurt W. Gottschalk, Stephen Horsley, Peter Knopp, James Kochenderfer, Barbara McGuinness, Gary Miller, Todd Ristau, Scott H. Stoleson, Susan L. Stout. 2008. Prescribing regeneration treatments for mixed-oak forests in the Mid-Atlantic region
• Randall Morin, Andrew M. Liebhold, Kurt W. Gottschalk, Christopher W. W. Woodall, Daniel B. Twardus, Robert L. White, Stephen Horsley, Todd Ristau. 2006. Analysis of forest health monitoring surveys on the Allegheny National Forest (1998-2001)
• Todd Ristau, Stephen Horsley. 2006. When is pin cherry (Prunus pensylvanica L.) a problem in Allegheny hardwoods?
• Susan L. Stout, Coeli Hoover, Todd Ristau. 2006. Listening to old beech and young cherry trees - long-term research in the Alleghenies
• Susan L. Stout, Todd Ristau. 2005. Long-term Research on the USFS Kane Experimental Forest in Northwestern Pennsylvania
• Todd Ristau, Stephen Horsley, Larry H. McCormick. 2001. Sampling to assess species diversity of herbaceous layer vegetation in Allegheny hardwood forests
• Todd Ristau, Stephen Horsley. 1999. Pin cherry effects on Allegheny hardwood stand development
• Larry H. McCormick, John W. Groninger, Kathy A. Penrod, Todd Ristau. 1993. Deer exclusion effects on understory development following partial cutting in a Pennsylvania oak stand

Data and Tools

• Tool
  

  NED-3 Ecosystem Management Decision Support

  https://research.fs.usda.gov/nrs/products/dataandtools/ned-3-ecosystem-management-decision-support
• Tool
  

  SILVAH 7

  https://research.fs.usda.gov/nrs/products/dataandtools/silvah-7
• Tool
  

  SILVAH 8

  https://research.fs.usda.gov/nrs/products/dataandtools/silvah-8

• Program
  

  Ecological Sustainability of Central Appalachian Forests

  https://research.fs.usda.gov/nrs/programs/appalachian
  Station

  Northern Research Station
• Experimental Forest or Range
  

  Kane Experimental Forest

  https://research.fs.usda.gov/nrs/forestsandranges/locations/kane
  Station

  Northern Research Station

• The State University of New York, College of Env. Sci. and For., Ph.D., Plant Ecology, 2010
• The Pennsylvania State University, M.S., Forest Science, 1997
• Houghton College, B.S., Biology, 1991