Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Committee Member Radosevich, Steve Degree Field Rangeland Resources

Response of Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis) to defoliation of understory grasses and drought

Creator:

Purrington, Teal Mackenzie

Abstract:

Water potential, leaf conductance, growth, nitrogen content, and seedling survival of Wyoming Big Sagebrush (Artemisia tridentata ssp. wyomingensis) following defoliation of the herbaceous understory were assessed during two growing seasons. Precipitation was 107% and 63% of the long-term mean (283 mm) in 1989 and 1990, respectively, which presented an opportunity...

Resource Type:

Masters Thesis

Full Text:

Svejcar, Dr. Steve Radosevich, and graduate representative Dr. Elaine Ingham, for serving on my
Western juniper encroachment into aspen communities in the Northwest Great Basin

Creator:

Wall, Travis G.

Abstract:

In the Northwest Great Basin, aspen (Populus tremuloides) communities uniquely contribute to the biodiversity of a semi-arid, sagebrush-dominated landscape. In this same region, western juniper (Juniperus occidentalis) is encroaching into aspen stands. This study determined the timing, extent, and some of the effects of this expansion. Aspen stands below 2,133...

Resource Type:

Masters Thesis

Full Text:

, Dr. Steve Radosevich, and Dr. Terri Lomax who served on my committee. Friends, Dave Ganskopp, Jeff