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The landscape photographs of Ansell AdamsHammond, Anne January 1999 (has links)
No description available.
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Subalpine revegetation on backcountry campsites near Tuolumne Meadows, Yosemite National Park, California : third year resultsMoritsch, Barbara J. 27 April 1992 (has links)
The National Park Service initiated a backcountry campsite restoration project
in 1987 to restore native vegetation on severely degraded campsites in three subalpine
lake basins in Yosemite National Park. Restoration treatments included soil
scarification, transplanting, manual seeding and site protection. Eight of the treated
campsites were monitored in 1990 to evaluate changes in percent vegetation cover,
species richness and volunteer establishment that had occurred over the three year
period beginning prior to treatment application in the summer of 1987, and ending in
the summer of 1990.
Percent vegetation cover increased slightly across all sampled quadrats ([mean] =
0.71; N = 214) with mean percent cover changes ranging from -0.37 to 4.36 on
individual campsites. Three sites had a loss of cover. Percent cover changes differed
most among campsites within lake basins. Changes in percent cover did not differ
among lake basins or impact strata (barren core, moderately trampled, and
peripheral). Transplanting did not appear to be an important influence on changes in
percent cover, as cover changes did not differ between planted and unplanted areas.
Survival of transplants planted in 1987 was poor (19.2%), but survival of transplants
planted in 1988 was higher (70.5%).
Species richness increased slightly across all sampled quadrats ([mean] = 0.54
species per quadrat), with species richness changes on campsites ranging from -0.13
to 1.75 species per quadrat. One site had a mean decrease in species richness.
Species richness changes differed among campsites, with the largest increases
occurring on those campsites that also had the greatest increases in percent cover.
Changes in species richness also differed among impact strata, with the largest
increases occurring on barren core areas. There were small differences among lake
basins, and species richness changes did not differ between planted and unplanted
areas.
Volunteer establishment occurred on all treated sites. The number of
volunteers per site ranged from one to 45, and 29 species were represented.
Individual quadrats had from one to four volunteers. Approximately 50% of the
volunteers were producing seed, and overall vigor among volunteers was good.
Numbers of volunteers per quadrat differed most strongly among campsites. Slight
differences were detected among lake basins and impact strata, with numbers
decreasing from barren core to peripheral quadrats. Differences in numbers of
volunteers per quadrat between planted and unplanted areas were not detected.
Soil scarification may enhance increases in cover, species richness and
numbers of volunteers. However, the influence of scarification was tested on two
sites only, and further study is recommended.
The recovery process appeared to be strongly affected by factors operating at
the campsite level. For example, sites with the greatest increases in percent cover
also had the greatest increases in species richness and the most volunteers. These
sites had coarse soils, relatively abundant sunlight and moisture, and were effectively
protected from trampling after site treatment. Results indicate revegetation
prescriptions should be made on a site-by-site basis.
The performances of eleven species used in transplanting or occurring as
volunteers were evaluated. Five species, Agrostis humilis, Calamagrostis breweri,
Muhlenbergia filifonnis, Trisetum spicatum, and Calyptridium umbellatum show
potential as colonizers in unassisted revegetation and may be useful in manual seeding
treatments; three species, Calamagrostis breweri, Carex rossii, and Juncus panyi
show potential for transplanting and nursery propagation; and two species, Carex
spectabilis and Carex straminiformis, require further study to determine their
effectiveness in subalpine revegetation treatments. / Graduation date: 1993
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Structure section through the Tuolumne Intrusive complex, Yosemite National ParkGumble, Gordon Edward, 1938- January 1962 (has links)
No description available.
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Finding Yosemite : a reflection on conservation /Witkowski, Jennifer. January 2007 (has links)
Thesis (M.F.A.)--Rochester Institute of Technology, 2007. / Typescript. Includes bibliographical references (leaves 20-25).
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Human-Bear Interactions in the Backcountry of Yosemite National ParkHastings, Bruce Charles 01 May 1982 (has links)
The objective of this study was to quantitatively document interactions between black bears and backcountry visitors, and to identify the factors affecting those encounters. Fine hundred and ninety-two interactions were observed. The most common responses of visitors to bears were to watch, walk toward, and talk to others and/or point at the bear. Bears responded to humans largely by walking away, watching, traveling around, walking toward, and running away from people.
Each behavior for both species was categorized into one of four response classes: (1) fear/avoidance, (2) neutrality, (3) approach, or (4) aggression. Over 65 percent of visitor responses were neutral. People were least likely to react to bears with fear/avoidance behavior. Bears also were most likely to be neutral. Of particular interest is the low occurrence of aggression shown by bears. Less than
two percent of all responses fell into this category, most of which were exhibited by two animals. We witnessed no interactions which resulted in injury or even contact between visitors and bears. When ursid aggression did occur, bears appeared to be more aggressive in June, with younger visitors, and at close distances. Both human aggression and fear were correlated with short interactions.
Bear behavior was greatly altered by possession of camper foods. Bears were more neutral and walked toward people less after they had begun to eat. They also showed much less fear of visitors at this time. Other correlations of both human and ursid behavior with biotic and abiotic variables ( temporal, spatial, environmental, etc.) are presented and discussed. Recommendations for improved management are also suggested.
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Interpreting geology in Yosemite National Park, California : a monument to strong granite, powerful glaciers, and the perseverance of life /Dunham, Sarah E. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 126-131). Also available on the World Wide Web.
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Ursachen und Lösungsansätze für Akzeptanzprobleme von Grossschutzgebieten am Beispiel von zwei Fallstudien im Nationalpark Harz und im Yosemite National ParkRuschkowski, Eick von January 2009 (has links)
Zugl.: Hannover, Univ., Diss., 2009
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Park management and the growth of cooperating associations in Yosemite National Park, CaliforniaBartlett, Jonathon R. January 2003 (has links)
Thesis (M.A.)--Ohio University, June, 2003. / Title from PDF t.p. Includes bibliographical references (leaves 109-115)
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Park Management and the Growth of Cooperating Associations in Yosemite National Park CaliforniaBartlett, Jonathon R. 28 July 2003 (has links)
No description available.
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Apparent Fate, 2010: Dismantling the Notion of Photographic TruthMacDonald, Kelsey M. 04 May 2010 (has links)
When creating a current work, artists cannot ignore the images that have preceded theirs. The history of a medium and the related history of subject matter is vital to the meaning of a new art work. Each sign and symbol has a connotation out of the artists’ control. The developed meaning of a symbol is inseparable for the viewer regardless of the acknowledgment of that meaning by the artist. To work with imagery and not address it’s historical context is to perpetuate it’s meaning. The only way to not state what has already been stated is to critically engage with the preexisting meaning of the imagery. An artist can combine symbols to create dual meanings or juxtapositions of meaning, or present the imagery in a way that complicates what it already signifies. “Apparent Fate,”my combined negative, photographic mural, uses imagery from Yosemite National Park to comment on photography’s function or purpose in history and in the current economic, political, environmental, and social conditions in California and society’s current stance on Manifest Destiny. How have the ideas of innate rights over people and places changed over time in American culture?
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