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Direct and indirect effects of livestock grazing intensity on processes regulating grassland bird populations

Creator:

Johnson, Tracey N.

Abstract:

In grasslands, grazing by large ungulates can influence vegetation structure, composition, primary productivity, and ultimately, ecosystem functioning. While grazing represents a complex disturbance, grazing intensity largely determines the effects of grazing on vegetation. Structural and compositional changes in the plant community caused by grazing could have bottom-up effects on species...

Resource Type:

Dissertation

Full Text:

. Greg Brenner, Dr. Joseph Fontaine, Kim Verhelst, and Colette Coiner for their many
The effects of environmental stressors on cardiac gene expression and contractility in rainbow trout (Oncorhynchus mykiss)

Creator:

Momoda, Tracey S.

Abstract:

Rainbow trout (Oncorhynchus mykiss) experience a variety of stressors in their natural environment as well as in aquaculture that can have negative effects on their physiology. The effects of physiological stress and endocrine disruption have been well described in fish. However, there is a scarcity of information on the effects...

Resource Type:

Dissertation
Effects of oil and natural gas development on territory occupancy of ferruginous hawks and golden eagles in Wyoming, USA

Creator:

Wallace, Zachary P.

Abstract:

Energy development is expanding rapidly across the western US. Negative effects have been documented for some wildlife, but consequences of development are unclear for other taxa, including raptors. We had the opportunity to examine effects of oil and natural gas development on two raptor species of conservation concern, ferruginous hawks...

Resource Type:

Masters Thesis

Full Text:

everyone at the Rocky Mountain Research Station; Kim McKague, Jana Dick, and everyone at Eastern Oregon