Twenty-five plant communities were classified within 3 bitterbrush (Purshia tridentata) habitat types along the Columbia River in north-central Washington. Topography, indicator species, and soils data were used to assign stands to habitat type. Ordination across 3 habitat types reflected a moisture gradient: bitterbrush/Idaho fescue (Festuca idahoensis) communities occupied the moist end, bitterbrush/needle-and-thread (Stipa comata) communities the xeric end, and bitterbrush/bluebunch wheatgrass (Agropyron spicatum) an intermediate position. Solar radiation index and elevation accounted for 76% of the variation in the major axis. Ordinations of communities within habitat types described the sere. High-seral communities were not present on the study area. Mid-seral communities had greater perennial grass cover and lower bitterbrush density than low-seral communities. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.