Interactions between white-tailed deer density and the composition of forest understories in the northern United States

  • Authors: Russell, Matthew B.; Woodall, Christopher W.; Potter, Kevin M.; Walters, Brian F.; Domke, Grant M.; Oswalt, Christopher M.
  • Publication Year: 2017
  • Publication Series: Scientific Journal (JRNL)
  • Source: Forest Ecology and Management. 384: 26-33.
  • DOI: 10.1016/j.foreco.2016.10.038

Abstract

Forest understories across the northern United States (US) are a complex of tree seedlings, endemic forbs, herbs, shrubs, and introduced plant species within a forest structure defined by tree and forest floor attributes. The substantial increase in white-tailed deer (Odocoileus virginianus Zimmerman) populations over the past decades has resulted in heavy browse pressure in many of these forests. To gain an objective assessment of the role of deer in forested ecosystems, a region-wide forest inventory across the northern US was examined in concert with white-tailed deer density information compiled at broad scales. Results indicate that deer density may be an additional driver of tree seedling abundance when analyzed along with stand attributes such as aboveground biomass, relative density, and stand age. Tree seedling abundance generally decreased as deer density increased above 5.8 deer km2 for all forest type groups with the exception of oak-dominated forests. Findings indicate that introduced plant species, of which 393 were recorded in this study, increased in areas with higher deer density. The abundance of whitetailed deer is just as important as forest stand and site attributes in the development of forest understories. Given the complexity of forest and land use dynamics across the northern US, this study provides directions for future research as more data linking forest-dependent wildlife and forest dynamics at regional and national scales become available.

  • Citation: Russell, Matthew B.; Woodall, Christopher W.; Potter, Kevin M.; Walters, Brian F.; Domke, Grant M.; Oswalt, Christopher M. 2017. Interactions between white-tailed deer density and the composition of forest understories in the northern United States. Forest Ecology and Management. 384: 26-33.
  • Keywords: Browsing, Forest Inventory and Analysis, Invasive plants, Odocoileus virginianus, Tree regeneration, Understory vegetation
  • Posted Date: November 2, 2016
  • Modified Date: November 2, 2016
  • Requesting Print Publications

    Publication requests are subject to availability. Fiscal responsibility limits the hardcopies of publications we produce and distribute. Electronic versions of publications may be downloaded, distributed and printed.

    Please make any requests at pubrequest@fs.fed.us.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • To view this article, download the latest version of Adobe Acrobat Reader.