Skip to Main Content
Vegetation responses to supplemental winter feeding of elk in western WyomingAuthor(s): Matthew J. Rinella; Ron Dean; Marty Vavra; Catherine G. Parks
Source: Western North American Naturalist. 72(1): 78-83
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
PDF: Download Publication (458.78 KB)
DescriptionTo compensate for losses in overwintering habitat, elk are fed hay in winter at approximately 37 locations throughout the western United States. These winter feeding programs concentrate elk activity, and there is concern that such concentrations could degrade plant communities. Except for one study focused exclusively on aspen (Populus tremuloides), ours is the first to quantify vegetation responses to supplemental winter feeding of elk. The western Wyoming feedground we studied was established in winter 1981-1982, and supplemental feeding occurred every winter through 2006. Transects were arranged in a before-after control-impact (BACI) design, and vegetation data were gathered in the midsummers of 1981 and 2006. Over the study period, the feedground became invaded by smooth brome (Bromus inermus), a nonnative grass constituent of hay fed to the elk. The smooth brome invasion was attended by declines in native forb cover and the apparent extirpation of shrubs from the feedground. The smooth brome invasion did not extend beyond the feedground, but an area 125 m from the feedground showed decreases in shrubs. Supplemental winter feeding at a feedground in western Wyoming degraded the plant community, but, with the possible exception of aspen, the degradation did not appear to extend great distances beyond the small area where the animals were fed.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
CitationRinella, Matthew J.; Dean, Ron; Vavra, Marty; Parks, Catherine G. 2012. Vegetation responses to supplemental winter feeding of elk in western Wyoming. Western North American Naturalist. 72(1): 78-83.
- Greater bud outgrowth of Bromus inermis than Pascopyrum smithii under multiple environmental conditions
- Soil sulfur amendments suppress Selenium uptake by alfalfa and western wheatgrass
- Soil nitrogen mineralization not affected by grass species traits
XML: View XML