Index Catalog // ScholarsArchive@OSU

Creator:: Bruce, Jennifer R.
Abstract:: Greater sage-grouse (Centrocercus urophasianus), a sagebrush obligate species, has contracted in extent by nearly half its original distribution. This is primarily due to habitat loss and degradation over the past 150 years. During winter, sage-grouse depend completely on sagebrush habitat for food and cover, yet sage-grouse winter ecology has been...
Resource Type:: Masters Thesis
Full Text:: encouragement was essential to the successful completion of this project. Thanks also to Dr. Steven Petersen

Creator:: Matney, Casey A.
Abstract:: State-and-transition models (STMs) have been successfully used to describe ecological dynamics in woodlands, shrublands, grasslands, and several other ecosystems. Changes in vegetation and soil are measured to gauge and predict plant community dynamics within ecological states and transitions between alternative ecological states. Ecological states and their boundaries are defined by...
Resource Type:: Dissertation
Full Text:: . Next, my committee members; Steven Petersen, Jay Noller, John Buckhouse, and Cynthia Ocamb, your

Creator:: Larson-Praplan, Stephanie
Abstract:: Managing rangelands with livestock grazing is a tool that can be applied to obtain vegetation management objectives. Animals utilize available resources, which vary in quantity and quality, across the landscape. Their movements are adjusted to the spatial and temporal heterogeneity of resource distribution. Controlling livestock distribution is fundamental to economically...
Resource Type:: Dissertation
Full Text:: . Dr. Steven Petersen, the spiritual advisor. Thank you for being such a great teaching inspiration

Creator:: Kirschbaum, Alan A.
Abstract:: Protracted drought in the southwest U.S. has had significant impacts on the region’s keystone ecosystem, the pinyon-juniper (PJ) woodlands. Drought conditions in 9 of the last 10 years, exacerbated by extreme drought in one year, stressed the pinyon pine (Pinus edulis) trees, making them highly vulnerable to native ips beetles...
Resource Type:: Masters Thesis
Full Text:: . I would also like to thank the other committee members, Steven Petersen, Dave Turner and Robert

Creator:: Wang, Sen
Abstract:: The vegetation of a 420 square mile area of the Oregon Coastal Mountain Range was mapped using data from the multispectral scanner system aboard Landsat. Advantages of this mapping system include rapid synoptic coverage of the same geographic area at different periods in time at a reduced cost compared to...
Resource Type:: Masters Thesis

ScholarsArchive@OSU