Author(s)

Collin W. Smith

Graduation Year

2015

Date of Thesis Acceptance

Spring 5-13-2015

Major Department or Program

Geology - Environmental Studies

Advisor(s)

Bob Carson

Abstract

Very little research has been conducted on the role of ungulates in the development of hummocked topography in wetlands. This survey evaluates 22 hummocked wet meadows and riparian areas on the Dixie, Fishlake and Manti-La Sal National Forests in southern Utah. I explored the variability in location and morphology of hummocked areas in order to better understand the mechanisms of formation at play. The study explores evidence for and against ungulate grazing as factor in hummock formation and/or exacerbation in order to better direct federal land managers’ approach to wetland protection and mitigation. Hummock oblateness may be an important indicator of ungulate interaction with hummocked wetlands. However, the lack of suitable ungrazed reference areas compounds the difficulty of determining ungulate impact. Two locations with exclosures or lighter grazing regimes present different hummock morphology.

Page Count

37

Subject Headings

Ungulates, Dixie National Forest (Utah), Fishlake National Forest (Utah), Manti-La Sal National Forest (Utah and Colo.), Riparian areas -- United States -- Measurement, Wetlands -- Environmental aspects, Whitman College 2015 -- Dissertation collection -- Geology-Environmental Studies

Permanent URL

http://hdl.handle.net/10349/20151109

Document Type

Public Accessible Thesis

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