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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

A structural study of the Pusch Ridge-Romero Canyon area, Santa Catalina Mountains, Arizona

McCullough, Edgar J. January 1963 (has links)
No description available.
12

Petrography and structure of the Leatherwood Quartz Diorite, Santa Catalina Mountains, Pima County, Arizona

Hanson, Hiram Stanley, 1923- January 1966 (has links)
No description available.
13

Geology of the Maudina Mine area, northern Santa Catalina Mountains, Pinal County, Arizona

Bromfield, Calvin Stanton, 1923- January 1950 (has links)
No description available.
14

The history of deformation and fluid phenomena in the top of the wilderness suite, Santa Catalina Mountains, Pima County, Arizona

Young, David Paul January 1988 (has links)
No description available.
15

Structure and petrology of a part of the east flank of the Santa Catalina Mountains, Pima County, Arizona

Pilkington, H. D. (Harold Dean), 1930- January 1962 (has links)
No description available.
16

Stratigraphy and structure of a part of the Canada del Oro district, Santa Catalina Mountains, Pinal County, Arizona

Wallace, Roberts M. (Roberts Manning), 1915- January 1951 (has links)
No description available.
17

Effects of prescribed burning on breeding birds in a ponderosa pine forest, southeastern Arizona

Horton, Scott Patterson, 1951- January 1987 (has links)
A moderately intense, broadcast, understory, prescribed burn in 3 previously unburned ponderosa pine stands in southeastern Arizona felled or consumed 50% of all ponderosa pine snags ≥ 15 cm dbh. Large moderately decayed snags were most susceptible to burning. Large snags in the early stages of decay were preferred as nest sites by cavity-nesting birds. Numbers of live woody plants were reduced by 40%, mortality was greatest among shrubs and small trees. Canopy volume was reduced by 19%, the greatest impact was below 5 m. No species of cavity-nesting birds, or birds that associated with understory vegetation disappeared in the first season after burning, but 3 species decreased, and 1 species increased in abundance. The minor impacts of a single treatment with broadcast understory burning on bird populations will be ephemeral, but a repeated burns could have greater, and more lasting effects on the avian community.
18

Geology and ore deposits of the Marble Peak area, Santa Catalina Mountains, Pima County, Arizona

Braun, Eric Rudolph, 1943- January 1969 (has links)
No description available.
19

Weathering of the granodioritic rocks in the Rose Canyon Lake area, Santa Catalina Mountains, Arizona

Laney, R. L. January 1971 (has links)
No description available.
20

Mountain sheep habitat characteristics in the Pusch Ridge Wilderness, Arizona

Etchberger, Richard Carl, 1957- January 1988 (has links)
Mountain sheep (Ovis canadensis mexicana) in the Pusch Ridge Wilderness (PRW), Santa Catalina Mountains, Arizona have abandoned historic habitat and now occupy 44 km². I used univariate analyses to quantify differences of physiographic and vegetational variables between abandoned habitat and habitat that is still used by mountain sheep. A discriminant function model characterized the magnitude of the differences between the 2 habitats. Habitat that supports mountain sheep has less human disturbance and is more open with more side oats grama (Bouteloua curtipendula), red brome (Bromus rubens), brittle bush (Encelia farinosa), and forb cover, but less ground cover, bush muhly (Muhlenbergia porteri), and turpentine bush (Haplopappus laricifolius) than habitat that was abandoned by mountain sheep. Fire is important in still used habitat because it reduces tall plants that obstruct mountain sheep vision. Human disturbances should be minimized in mountain sheep habitat.

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