Since European American settlement of the Intermountain Region, dramatic changes in vegetation composition and structure have occurred in the sagebrush steppe ecosystem. Western juniper (Juniperus occidentalis spp. occidentalis Vasek), although indigenous to the Intermountain Region, has increased since the late 1800s. Considerable work has been done documenting juniper woodland expansion...
This study examines the impact of the recently constructed
limited- access highway, Interstate 5, on agricultural land in Linn
County, Oregon. More specifically it scrutinizes the quality and
quantity of the land relinquished to the highway right -of -way; the
effects on field boundaries, connectivity, mobility, drainage, land
use, miscellaneous...
Since the late 1880's western juniper has expanded in range and
increased in density in sagebrush-bunchgrass, riparian, and forested plant
communities of the Pacific Northwest. Succession to western juniper
woodland has been shown to reduce the productivity and diversity of the
understory component, result in concentration of soil nutrients beneath...
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...
This thesis explores outcomes of women's participation in the American welfare system. The primary goal of this research was to determine the impact certain segments of the welfare system in the United States have on women's ability to obtain and retain human capital. The primary
resources were formulated around participants...
The purpose of this study of the Lyons flora is to determine the age and paleoecology of the flora through the examination and identification of the fossil plant species of the flora. The plant fossils comprising the Lyons flora were collected from a locality in the upper Thomas Creek area,...