• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1171
  • 366
  • 341
  • 153
  • 113
  • 37
  • 35
  • 35
  • 31
  • 30
  • 25
  • 22
  • 13
  • 12
  • 12
  • Tagged with
  • 2814
  • 1017
  • 286
  • 280
  • 257
  • 232
  • 231
  • 219
  • 217
  • 208
  • 191
  • 183
  • 180
  • 180
  • 155
  • 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.
141

Effects of the August 17, 1959 earthquake and subsequent quaking upon the thermal features of Yellowstone National Park

Watson, Barry Norton, 1937- January 1961 (has links)
No description available.
142

The depositional environments of the Navajo sandstone at Zion National Park, Utah

Greenwood, David Earl, 1952- January 1978 (has links)
No description available.
143

Managing Coral Reefs in the Face of Global Climate Change: Developing a Coral Resilience Framework

Porter, Megan Ann 01 January 2010 (has links)
Two experiments were performed to determine the effect of ocean acidification on Montastraea faveolata vertical skeletal growth and lesion healing. The first experiment used three different CO2 concentrations: present day atmospheric pCO2, 380 microatm, and the atmospheric pCO2 expected by the years 2050, 560 microatm, and 2100, 800 microatm. The second experiment used 380 and 560 microatm. In the second experiment where the influence of parent colony was analyzed, M. faveolata fragments from one coral colony had significantly slower skeletal growth rates and less healed lesion area than other colonies. Corals that calcify and regenerate tissue slower may have less resilience to ocean acidification. The experiments demonstrated that the corals in 800 microatm grew significantly slower than corals in 380 or 560 microatm. Increased CO2 concentrations increased M. faveolata skeletal growth rates and healed lesion area until a threshold was reached, 560 microatm, then growth rates and healed lesion area decreased. Less than 1% of the variability in healing rates could be explained by CO2. The Nature Conservancy Resilience Model was used as a framework to identify current management strategies of wider Caribbean MPAs that may increase coral reef resilience to climate change. Seven out of the 8 MPAs had representation, critical areas, connectivity, and effective management as determined by each MPA's management plan. Three management plans had specific climate management strategies. Each management plan had actions to build coral reef resilience, but institutional incapacities and other barriers can decrease the ability to increase reef resilience. Because of the weaknesses of the Resilience Model, revised resilience guidelines were developed with the Florida Keys National Marine Sanctuary (FKNMS) as a case study. The coral lesion experiment results and interviews with FKNMS managers and the FKNMS's Sanctuary Advisory Council helped design the revised resilience guidelines. The revised climate-based coral reef resilience guidelines are to 1) incorporate more no-take zones and hedge the risks against ocean acidification, 2) identify resilient coral reefs and perform more climate change research, 3) reduce local stressors, 4) enhance coral reef recovery, and 5) increase public awareness and education on climate change impacts to coral reefs.
144

The Backcountry as Home: Park Wardens, Families, and Jasper National Park’s District Cabin System, 1952-1972

Eckert-Lyngstad, Nicole J Unknown Date
No description available.
145

Terwillegar Park: site plan and management plan

Yee, Linda C. 19 February 2013 (has links)
The purpose of this practicum is to develop a dynamic and flexible site plan and management strategy which allows Terwillegar Park, in Edmonton, Alberta, to evolve into a place rich in species biodiversity and of high ecological function; that challenges public perception of nature in the city while fostering environmental appreciation and stewardship; and which celebrates its unique identity within the North Saskatchewan River Valley. A review of the pertinent City of Edmonton municipal development plan, environmental goals/policy, parks planning and recreation planning documents are completed, as they apply to the long term planning and development of Terwillegar Park. The implied objectives derived from these documents will then be combined with a qualitative inventory and analysis, and ultimately reconciled through a site plan design and management strategy.
146

Travel motivations to selected national parks in South Africa : Karoo-, Tsitsikamma- and Kgalagadi Transfrontier National Parks / L. Bothma

Bothma, Lee-Ann January 2009 (has links)
Research in tourist behaviour follows the cognitive approach. This contains the behavioural cycle of stimulation (motivation and intention formation), the actual behaviour and experience, and finally the evaluation of consequences. These stages are referred to in tourism as: the pre-trip experience (motivation and intention formation), travel stage (actual behaviour) and the post-travel stage (evaluation of the travel experience). The characteristics, which influence tourist behaviour, indicate that travel motivations are the result of how tourists behave (tourist behaviour). These characteristics are: the decision-making process, demographical factors, marketing mix, external/social factors and internal/ psychological factors (motivations). Motivations to travel have a major influence on the travel behaviour of tourists. Tourists' motivations to satisfy their needs directly influence their behaviour, or the actions they take, in order to satisfy these needs. Due to its impelling and compelling nature, motivation is considered to be one of the most important variables in explaining tourist behaviour. As countries and destinations strive to increase their share of the international and national tourism market, it becomes important to understand why people travel and why they choose a specific ecotourism destination. If travel motivations of tourists are known to the product, it will be an aid when developing a competitive marketing strategy. From the literary review, the following travel motivations occurred regularly: leisure, excitement, socialisation, relaxation, family togetherness, escape, culture, novelty, attractions, knowledge seeking, adventure, prestige, nature, facilities, recreation, attributes, nostalgia, photography, exploration and activities. The literary review further revealed that there are travel motivations commonly found with regard to tourism destinations, and on the other hand, there are travel motivations which are product related. The aim of this research was to determine the travel motivations of tourists to selected national parks in South Africa: Karoo-, Kgalagadi Transfrontier- and Tsitsikamma National Parks. Secondary data was used to determine the visitors' profile, as well as the factor analysis on travel motivations. For the visitors' profile, 286 questionnaires were administered for Karoo National Park, 468 for the Tsitsikamma National Park and 582 for Kgalagadi Transfrontier National Park. For the factor analysis, 318 questionnaires were administered for Karoo National Park, 673 for the Tsitsikamma National Park and 534 for Kgalagadi Transfrontier National Park. Primary data was used to determine the reasons for visiting these parks. 101 Questionnaires were administered for Karoo National Park, 192 for the Tsitsikamma National Park and 104 for Kgalagadi Transfrontier National Park. The foremost findings of the research were divided into three categories, namely: visitors' profile, reasons for visiting the parks and travel motivations. Regarding visitors profile; it was found that profiles for the three parks were quite similar, except for the following: expenditure of tourists at Kgalagadi Transfrontier National Park, where the average spending of tourists was higher and directly linked to the duration of stay; duration of stay indicated that tourists visiting Kgalagadi Transfrontier National Park stayed longer. Two major markets were revealed by the research for all three parks, namely: Gauteng and Western Cape, with the exception of Tsitsikamma National Park, which had a third market of importance, namely Eastern Cape. This information is important when developing marketing strategies. It was especially evident that 4x4 vehicles are the preferred mode of transport for visitors to Kgalagadi Transfrontier National Park. Therefore, this park can be marketed as a 4x4 destination. From these results one can conclude that the profile of tourists to the three selected national parks showed minor differences. Primary data was used to determine the reasons why tourists visit the selected parks. Among the most important travel reasons why tourists visit the selected parks, was: to relax, for family recreation, to get away from regular routine and for the benefit of the children. The factor analysis regarding travel motives revealed the following: five factors were identified for Karoo National Park and six factors were identified for both Tsitsikamma- and Kgalagadi Transfrontier National Parks. Results illustrated that these parks have common and unique motives. Common travel motives in these parks include: park attributes, escape and relaxation, as well as knowledge seeking. Unique to Karoo National Park, was attractions and family togetherness, compared to photography and adventure for Kgalagadi Transfrontier National Park, and adventure and attractions for the Tsitsikamma National Park. A combined factor analysis was also conducted, which showed knowledge seeking, park attributes, as well as escape and relaxation as the most important travel motives of tourists visiting the three selected national parks. This research, therefore, confirmed that different attractions and destinations feed different travel motives, even when classified as similar types of products. Marketers can use this information to position these parks and to develop better marketing strategies, to enable national parks to outwit their competitors. / Thesis (M.A. (Tourism))--North-West University, Potchefstroom Campus, 2009.
147

Terwillegar Park: site plan and management plan

Yee, Linda C. 19 February 2013 (has links)
The purpose of this practicum is to develop a dynamic and flexible site plan and management strategy which allows Terwillegar Park, in Edmonton, Alberta, to evolve into a place rich in species biodiversity and of high ecological function; that challenges public perception of nature in the city while fostering environmental appreciation and stewardship; and which celebrates its unique identity within the North Saskatchewan River Valley. A review of the pertinent City of Edmonton municipal development plan, environmental goals/policy, parks planning and recreation planning documents are completed, as they apply to the long term planning and development of Terwillegar Park. The implied objectives derived from these documents will then be combined with a qualitative inventory and analysis, and ultimately reconciled through a site plan design and management strategy.
148

Travel motivations to selected national parks in South Africa : Karoo-, Tsitsikamma- and Kgalagadi Transfrontier National Parks / L. Bothma

Bothma, Lee-Ann January 2009 (has links)
Research in tourist behaviour follows the cognitive approach. This contains the behavioural cycle of stimulation (motivation and intention formation), the actual behaviour and experience, and finally the evaluation of consequences. These stages are referred to in tourism as: the pre-trip experience (motivation and intention formation), travel stage (actual behaviour) and the post-travel stage (evaluation of the travel experience). The characteristics, which influence tourist behaviour, indicate that travel motivations are the result of how tourists behave (tourist behaviour). These characteristics are: the decision-making process, demographical factors, marketing mix, external/social factors and internal/ psychological factors (motivations). Motivations to travel have a major influence on the travel behaviour of tourists. Tourists' motivations to satisfy their needs directly influence their behaviour, or the actions they take, in order to satisfy these needs. Due to its impelling and compelling nature, motivation is considered to be one of the most important variables in explaining tourist behaviour. As countries and destinations strive to increase their share of the international and national tourism market, it becomes important to understand why people travel and why they choose a specific ecotourism destination. If travel motivations of tourists are known to the product, it will be an aid when developing a competitive marketing strategy. From the literary review, the following travel motivations occurred regularly: leisure, excitement, socialisation, relaxation, family togetherness, escape, culture, novelty, attractions, knowledge seeking, adventure, prestige, nature, facilities, recreation, attributes, nostalgia, photography, exploration and activities. The literary review further revealed that there are travel motivations commonly found with regard to tourism destinations, and on the other hand, there are travel motivations which are product related. The aim of this research was to determine the travel motivations of tourists to selected national parks in South Africa: Karoo-, Kgalagadi Transfrontier- and Tsitsikamma National Parks. Secondary data was used to determine the visitors' profile, as well as the factor analysis on travel motivations. For the visitors' profile, 286 questionnaires were administered for Karoo National Park, 468 for the Tsitsikamma National Park and 582 for Kgalagadi Transfrontier National Park. For the factor analysis, 318 questionnaires were administered for Karoo National Park, 673 for the Tsitsikamma National Park and 534 for Kgalagadi Transfrontier National Park. Primary data was used to determine the reasons for visiting these parks. 101 Questionnaires were administered for Karoo National Park, 192 for the Tsitsikamma National Park and 104 for Kgalagadi Transfrontier National Park. The foremost findings of the research were divided into three categories, namely: visitors' profile, reasons for visiting the parks and travel motivations. Regarding visitors profile; it was found that profiles for the three parks were quite similar, except for the following: expenditure of tourists at Kgalagadi Transfrontier National Park, where the average spending of tourists was higher and directly linked to the duration of stay; duration of stay indicated that tourists visiting Kgalagadi Transfrontier National Park stayed longer. Two major markets were revealed by the research for all three parks, namely: Gauteng and Western Cape, with the exception of Tsitsikamma National Park, which had a third market of importance, namely Eastern Cape. This information is important when developing marketing strategies. It was especially evident that 4x4 vehicles are the preferred mode of transport for visitors to Kgalagadi Transfrontier National Park. Therefore, this park can be marketed as a 4x4 destination. From these results one can conclude that the profile of tourists to the three selected national parks showed minor differences. Primary data was used to determine the reasons why tourists visit the selected parks. Among the most important travel reasons why tourists visit the selected parks, was: to relax, for family recreation, to get away from regular routine and for the benefit of the children. The factor analysis regarding travel motives revealed the following: five factors were identified for Karoo National Park and six factors were identified for both Tsitsikamma- and Kgalagadi Transfrontier National Parks. Results illustrated that these parks have common and unique motives. Common travel motives in these parks include: park attributes, escape and relaxation, as well as knowledge seeking. Unique to Karoo National Park, was attractions and family togetherness, compared to photography and adventure for Kgalagadi Transfrontier National Park, and adventure and attractions for the Tsitsikamma National Park. A combined factor analysis was also conducted, which showed knowledge seeking, park attributes, as well as escape and relaxation as the most important travel motives of tourists visiting the three selected national parks. This research, therefore, confirmed that different attractions and destinations feed different travel motives, even when classified as similar types of products. Marketers can use this information to position these parks and to develop better marketing strategies, to enable national parks to outwit their competitors. / Thesis (M.A. (Tourism))--North-West University, Potchefstroom Campus, 2009.
149

Early Life Stage Characteristics of Six Acadian Conifer Species: Germination and Seedling Development in a Changing Climate

Schatz, Jason D. January 2007 (has links) (PDF)
No description available.
150

Developing Inclusive Community Gathering Places Through Socially Driven Design Strategies

Brooks, Robert Allen 28 June 2017 (has links)
As cultural diversity continues to increase in U.S. urban centers, and indeed throughout the country, it becomes increasingly important to promote interaction between people of different backgrounds. Many forms of interaction, from simply seeing, to intimate conversation can increase our familiarity and acceptance of cultural differences. In addition, a greater understanding of these differences can lead to communities with a strong sense of togetherness and a vibrancy of local place. As a means of achieving this outcome, this thesis identifies ways in which urban park spaces can promote social interaction between different cultural groups and how these methods can then be used to develop a community gathering place that is welcoming to all. This thesis has developed a unique Social Space Organizational Model based on literature review findings relative to multi-cultural urban park and social space development. The model serves as a foundational framework for the creation of a collection of social spaces that function to accommodate the diverse ways in which different cultural groups use urban park spaces, as well as to provide opportunities for shared experiences that encourage community gathering and interaction between groups. Additionally, the model suggests an interconnectivity of various park spaces that promote a unified social experience throughout the park. Case studies of urban parks designed for use as social gathering places were analyzed against the model. Literature review findings on character qualities associated with social spaces as valued by multiple cultural groups were also explored in the case studies to identify design elements that encourage social interaction and foster positive experiences. Ultimately, these findings led to the creation of a neighborhood social gathering place that is welcoming to many different cultural groups and encouraging of community gathering and togetherness. The design engages multiple community groups by creating a park that is accomodative to a range of needs and uses as valued by different groups. Additionally, the design incorporates a diverse range of social opportunities and experiences that maintain flexibility in their ability to provide for individual as well as community based social experiences. / Master of Landscape Architecture

Page generated in 0.0313 seconds