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Associations Between Crested Wheatgrass and Native Vegetation in Southeastern Oregon : An Investigation of Co-establishment, Environment, Seeding History, and Livestock management

Creator:

Nafus, Aleta M.

Abstract:

Crested wheatgrass (Agropyron cristatum [L] Gaertm), an introduced bunchgrass, has been seeded on over 5 million hectares of degraded rangeland in western North America because it establishes more readily than native bunchgrasses. Because crested wheatgrass stands are associated with native species displacement and low biological diversity, there is substantial interest...

Resource Type:

Dissertation

Full Text:

rangeland restoration and research in the Intermountain West came from the Halogeton Control Bill passed
Understory vegetation response and nitrogen cycling following cutting of western juniper

Creator:

Bates, Jonathan D.

Abstract:

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...

Resource Type:

Dissertation

Full Text:

. Fred Obermiller and Bill Krueger for developing my interest in rangelands and encouraging me to