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The concepts of diagnostic species and fidelity have been used frequently in European phytosociology but rarely in North American vegetation classification. We developed a classification of the vegetation of a mountainous area of northern Utah and compared the diagnostic species approach with the indicator-species approach of habitat type classification Daubenmire prevailing in the U.S. Interior West. A total of 157 forest and nonforested plots were described by vascular plants and basic environmental factors. Clustering with RandomForest classification and ordination reduced the original number of plots to 26 meaningful vegetation units. Of these 26 units, 22 were strong, having four or more faithful species. Four units were weak, having less than three faithful species. We identified species diagnostic of particular vegetation units that are potentially useful for recognition of these units in the field. We proposed vegetation types at the level of vegetation alliances and associations, and correlated them with environmental factors. We found our vegetation units to be more strongly associated with the underlying environment than major habitat types Daubenmire. Our approach to classification has the potential to directly link vegetation with the physical environment and could be the basis for a substantial improvement of vegetation classification in the central Rocky Mountains.
Oakes, Chandler A., 1984, Environmental Significance of Variations in First-Order Bounding Surfaces in Eolian Deposits: Entrada Sandstone, Southeastern Utah. (Kocurek, G.). Degree: MA Call Number: Thesis 1984 Oa4
Robert Dawson On the Utah Plains Open Edition Giclee on Paper 32x18
The mill was partially rebuilt as an open-air dance hall known as the Old Mill Club in 1927. It operated into the 1940's. In the 1970's & 80's, it was annually used as a haunted house and occasionally as a craft boutique. It was declared an historic site by the Daughters of the Utah Pioneeers in 1966. The city of Cottonwood Heights condemned the structure in 2005, so its future is undecided and questionable.Article: Hough-Snee, N., B. B. Roper, J. M. Wheaton, P. Budy, R. L. Lokteff. 2013. Riparian vegetation communities change rapidly following passive restoration in a northern Utah stream. Ecological Engineering 58: 371-377. Get your free printable Utah maps here! You will find a variety of uses for these maps, whether it is at home, the office or school. These .pdf files are downloadable and will print easily on almost any printer. Our collection of maps include: two major cities map (one with ten cities listed and one with location dots), an outline map of the state of Utah, and two county maps (one with the county names listed and one without). The major cities map displays the following Utah cities: Ogden, Layton, West Valley City, West Jordan, Taylorsville, Sandy, Orem, Provo, St. George and Salt Lake City, the capital.The Utah Department of Transportation constructed and my students and I tested the effectiveness of the newly designed ‘at-grade’ big-game crosswalks and their associated structures. The experimental crosswalks were substantially cheaper than conventional overpasses and underpasses. If effective, they could find nationwide application in helping to minimize the human, economic, and environmental losses that result from deer-vehicle collisions at substantially lower cost than current mitigative measures. We team developed 3 competing simulation models in which highway losses operated in a strictly additive, partially compensatory/additive, and strictly compensatory manner. The partially compensatory/additive model most closely tracked observed population dynamics. Annual variation in demographic parameters offset the impacts of highway mortality at big population densities, however at low densities, highway mortality was severe enough to drive declining population trends. Monte Carlo error analyses were used to check results. The analyses suggested that with no reduction in highway mortality, there was a 90.7 % chance of population decline. With 40, 60, and 80% reductions in mortality, the likelihood of a declining population was 62.4, 41.8, and 22.8%, respectively. The influence of variable climatic conditions was also evaluated. We concluded that: a) mitigation efforts should target greater mortality reductions to help insure that desired population changes occur; and 2) at-grade crossing structures were not appropriate for other than relatively narrow secondary roads. The M.S. thesis resulting from this work was titled: (LEHNERT, M. E. 1996, MULE DEER HIGHWAY MORTALITY IN NORTHEASTERN UTAH: AN ANALYSIS OF POPULATION-LEVEL IMPACTS AND A NEW MITIGATIVE SYSTEM. M.S. THESIS, UTAH STATE UNIVERSITY, LOGAN 82 p). The data from these studies are being used currently by the Utah Department of Transportation in their mitigation measures for high deer kill areas.