• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 543
  • 105
  • 50
  • 48
  • 17
  • 12
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 9
  • 7
  • 4
  • Tagged with
  • 920
  • 337
  • 243
  • 166
  • 138
  • 134
  • 95
  • 90
  • 90
  • 90
  • 84
  • 77
  • 74
  • 69
  • 68
  • 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.
431

Local community participation in protected area management : a case study of Wadi El Gemal National Park, Egypt

Elhalawani, Salwa Ibrahim Hassan Abdelrahman January 2013 (has links)
No description available.
432

A history of the use and management of the forested lands in Arizona, 1862-1936

Lauver, Mary Ellen, 1904- January 1938 (has links)
No description available.
433

An approach to integrated ecosystem planning: an evaluation of the Minnewanka area plan, Banff National Park

Haid, Susan B 11 1900 (has links)
The Lake Minnewanka area is one of Banff National Park's most scenic and highly visited regions. Impacts such as the loss of significant montane habitat (characteristic of the Lower Bow Valley ecosystem) and social implications like crowding led to the need to develop a strategy for managing the area. The author worked with a planning team from the Canadian Parks Service(CPS) in Banff National Park (BNP) to develop the Minnewanka Area Plan. The primary purpose of the thesis is to evaluate the Minnewanka Area Plan to determine whether it effectively serves to maintain and enhance ecological integrity. A theoretical framework based on integrated ecosystem management was developed to evaluate the plan. Normative criteria from literature on recreational carrying capacity management and meaningful public participation were defined and applied to the plan. Overall, the plan was rated as successful according to the normative criteria. All of the criteria for an effective approach to carrying capacity management were considered and the plan reflected a fair and efficient public participation process. Stakeholder input influenced plan decisions to a high degree and several partnerships were developed through the planning process. Several inadequacies in the plan were identified through the evaluation. The adoption of an approach to ecosystem management called the Limits of Acceptable Change (LAC) was recommended as a guiding principle within the plan. The step-by-step LAC model was seen as overly complex in the context of the case study. Indicators and a monitoring program which are central to the LAC process were not defined as part of the plan. The evaluation of the public participation process indicated that stakeholder participation was high early in the planning process and reflected a partnership relationship where stakeholders shared the power of decision-making. During completion of the draft and final plan, the process became one of public consultation where the level and frequency of participation was lowered. Recommendations for improving the efficacy of the Minnewanka Area Plan are made within the thesis. A simpler approach to visitor and resource management which maintains the essential criteria of the LAC approach is suggested. Measures for maintaining a high level of public participation and improving the accountability of the CPS in decision-making are proposed. The normative criteria based on carrying capacity management and meaningful public participation processes are presented as a model for facilitating integrated ecosystem management in area planning within national parks.
434

Assessment of Eagle Ford Shale Oil and Gas Resources

Gong, Xinglai 16 December 2013 (has links)
The Eagle Ford play in south Texas is currently one of the hottest plays in the United States. In 2012, the average Eagle Ford rig count (269 rigs) was 15% of the total US rig count. Assessment of the oil and gas resources and their associated uncertainties in the early stages is critical for optimal development. The objectives of my research were to develop a probabilistic methodology that can reliably quantify the reserves and resources uncertainties in unconventional oil and gas plays, and to assess Eagle Ford shale oil and gas reserves, contingent resources, and prospective resources. I first developed a Bayesian methodology to generate probabilistic decline curves using Markov Chain Monte Carlo (MCMC) that can quantify the reserves and resources uncertainties in unconventional oil and gas plays. I then divided the Eagle Ford play from the Sligo Shelf Margin to the San Macros Arch into 8 different production regions based on fluid type, performance and geology. I used a combination of the Duong model switching to the Arps model with b = 0.3 at the minimum decline rate to model the linear flow to boundary-dominated flow behavior often observed in shale plays. Cumulative production after 20 years predicted from Monte Carlo simulation combined with reservoir simulation was used as prior information in the Bayesian decline-curve methodology. Probabilistic type decline curves for oil and gas were then generated for all production regions. The wells were aggregated probabilistically within each production region and arithmetically between production regions. The total oil reserves and resources range from a P_(90) of 5.3 to P_(10) of 28.7 billion barrels of oil (BBO), with a P_(50) of 11.7 BBO; the total gas reserves and resources range from a P_(90) of 53.4 to P_(10) of 313.5 trillion cubic feet (TCF), with a P_(50) of 121.7 TCF. These reserves and resources estimates are much higher than the U.S. Energy Information Administration’s 2011 recoverable resource estimates of 3.35 BBO and 21 TCF. The results of this study provide a critical update on the reserves and resources estimates and their associated uncertainties for the Eagle Ford shale formation of South Texas.
435

Coral reef fish movements and the effectiveness of the Barbados Marine Reserve

Chapman, Matthew R. January 1997 (has links)
This study examined whether movements of fishes across reserve boundaries reduced the difference in density and size of fish between reserve and non-reserve areas. Visual censuses, experimental trapping, habitat measurements and tagging were performed at 10 sites on two nearly contiguous fringing coral reefs at the northern edge of the Barbados Marine Reserve and at 10 sites on the two fringing reefs closest to the boundary in the non-reserve. The visual censuses showed that overall density and size of fishes large enough to be caught in Antillean fish traps were higher on reserve reefs than on non-reserve reefs. The differences in density and size varied considerably among species and were not statistically significant for individual species. In contrast to a previous study, experimental trap catches were not higher in the reserve than in the non-reserve. Visual censuses, trap catches, and their ratio (trappability) were affected by habitat variables. Species mobility, estimated by the maximum distance between locations at which an individual was captured, corrected for the sampling effort at that distance, was highly variable among species (medians 0--116m). For the more mobile species, movements within fringing reefs and between the nearly contiguous reserve reefs was high but extremely rare among reefs separated by expanses of sand and rubble. For this discrete fringing reef system, there is no evidence that movement across the reserve boundary influences the relative density or size of fish between the reserve and non-reserve.
436

Understanding the effects of a protected area on livelihoods of a neighbouring local community : a case study of Mokolodi Nature Reserve, Botswana.

Njiru, Lincoln Mwaniki. January 2007 (has links)
Establishment of protected areas continues to be recognized in many parts of the world as one of the most appropriate strategies of conserving biodiversity. As a result, their numbers have continued to increase globally with significant support coming from many national governments and international agencies. Some cases of earlier establishments of protected areas had negative effects on local communities especially where there was displacement and relocation of people, and loss of access to various natural resources important for livelihoods sustenance. In other cases however, protected areas brought positive effects to local communities such as creation of employment opportunities, contribution towards community development and giving the local people the opportunity to actively participate in natural resources management. All these effects have influenced livelihoods of many local communities in several ways. This study focuses on the effects of Mokolodi Nature Reserve on a neighbouring community from the angle of a community that traditionally did not have exclusive access and use of the land that is now the reserve, nor have a claim against it. Effects of the changes that have occurred on the livelihoods of the local people since the establishment of the reserve are looked at, as well as the attitudes and perceptions that people have towards the reserve. Relationships between the reserve management and the local people that have brought changes in the lives of the local people form a key component of this study. Further, ways in which the local people are involved in natural resource management in the area are explored, as well as the reserve‟s contribution towards enhancing better and sustainable livelihoods of the local people The study adopts a qualitative approach, with information being collected by use of structured questionnaires and key informant interviews. The majority of respondents were members of the local community. A few key informants were from outside the community but had associations with the area of study. Data was analyzed and presented in the form of descriptions, tables and graphs. Findings show that the reserve has brought changes, some of which have benefited the local community such as provision of job opportunities and creation of environmental awareness among the people. However, according to some respondents, especially the older, such benefits are minimal and only go to a few people. Such respondents hence consider the reserve to be of little or no benefit to the community. Attitudes and perceptions towards the reserve vary amongst respondents, with younger respondents appearing to have more positive attitudes and perceptions towards the reserve. Indications are that the relationship between the reserve management and the local community is not very well developed. The older respondents however appear to be keen on having good relationships with the reserve management established, as opposed to many of the younger respondents whose main concern is employment. Lack of community conservation initiatives in the area is considered a drawback towards increased people‟s participation in resource management in the area. Despite the varied opinions in terms of benefits and non-benefits, the reserve would still be considered to have played an important role in improving the livelihoods of the local people. Indications that some people have an interest in getting involved in various reserve-related activities, is a good opportunity for developing good relationships. This could also possibly change the negative attitudes and perception some people have towards the reserve. With continued interactions and learning of lessons from the past, there are opportunities for the reserve management and the local people to work together and hence find a balance between conservation priorities and local livelihoods. This would also work towards achieving one of the initial goals of the establishment of the reserve, of improving the standards of living of people in the local community. / Thesis (M.Env.Dev.)-University of KwaZulu-Natal, Pietermaritzburg, 2007.
437

The role of local indigenous communities in the management of natural resources in and around South Africa's national parks.

Jardine, Mark Leo. January 2002 (has links)
South Africa's protected areas are at the forefront of the county's efforts to conserve it's unique flora and fauna. The setting aside of these vast tracts of land has been the main thrust of Western conservation efforts for over two centuries. Despite the significant financial and human resources allocated to the protection of these natural areas, the extinction of many plant and animal species continues to occur on a daily basis. This study sets out to explore one of the crucial weaknesses of traditional protected areas management - the failure to incorporate and empower the people with the greatest knowledge and need of the natural resources in their areas - the local indigenous communities. In the past, the legislative focus was aimed at the total exclusion of these communities from protected areas. In South Africa, these 'preservationist' laws have been bitterly flavoured by the apartheid ideology, resulting in widespread environmental inequity and injustice for those societies targeted by racist and discriminatory policies. The thesis traces the history of the national parks concept, from its preservationist origin in the late nineteenth century United States, to modern day national parks that operate in terms of joint-management agreements in Australia and South Africa. It also exposes the detrimental effect that the establishment of national parks has inflicted on local indigenous communities around the globe. The experiences of Zimbabwe, Namibia, Canada and Australia are of particular relevance and value to South Africa in this respect. An overview and assessment of the current legal regime governing protected areas in South Africa reveals that further legislative transformation is required in order to integrate human development and wildlife conservation ideals. In particular, greater emphasis is needed to ensure the participation of local indigenous communities in the management natural resources in and around national parks. A failure to meet this objective may seriously undermine the future well-being of all of South Africa's inhabitants. / Thesis (LL.M.)-University of Natal, Pietermaritzburg, 2002.
438

A suitability assessment of farms for inclusion in a UNESCO-approved biosphere reserve : the case of the Itala Biosphere Reserve, KwaZulu-Natal.

Moffat, Andrew John. January 1997 (has links)
This project describes and evaluates a method of assessing the suitability of 161 farms for inclusion in a biosphere reserve. Farms were chosen as a basic study unit over more ecologically based units because the decision to participate in the biosphere reserve rests with the landowner. The study area is located in northern KwaZulu-Natal, between Hlobane, near Vryheid, and the Itala Nature Reserve where local landowners are exploring the possibility of establishing a biosphere reserve. A brief review of the natural, social and economic contexts is given in order to identify local dynamics relevant to the establishment of a biosphere reserve. Farm suitability for inclusion was assessed with respect to its capability to fulfil the three main roles of a biosphere reserve as defined by the Man and Biosphere Programme of UNESCO. These are conservation, sustainable development and research. Ten factors were identified to determine farm suitability: vegetation, fauna and soil conservation, present land use, agricultural potential, tourism potential, education, settlement density and location. These were prioritised using the Analytical Hierarchy Process according to their impact on the main roles of the biosphere reserve.Each farm was given a factor score according to the expression of that factor on that farm. Overall farm suitability was taken as the sum of the weighted factor scores. The final scores for each farm were grouped into suitability classes and these were mapped. This map was then used to make recommendations on which farms should be considered for inclusion in the reserve. This method of assessing farm suitability for inclusion in a biosphere reserve, involving scoring the factors determining suitability and prioritising these factors was evaluated with respect-to its efficiency in identifying suitable properties. This was achieved by comparing the results of the assessment with the suitability class of farms with known suitability. The conceptual approach to the assessment was reviewed against published guidelines for integrated regional planning and rational resource planning. The accuracy of the project method in correctly identifying suitable farms was assessed against two other simplified methods of assessment, involving no weighting between factors, and a limited number of factors. Based on these analyses, conclusions have been drawn as to the strengths and weaknesses of both the method of farm assessment and the method of evaluation itself Recommendations were made for further research into and development of methods of assessing farm suitability for biosphere reserves. A procedure for the establishment of the proposed Itala Biosphere Reserve was suggested. / Thesis (M.Env.Dev.)-University of Natal, Pietermaritzburg, 1997.
439

Fish surveys in exploited and protected areas of the Pondoland Marine Protected Area with consideration of the impact of the MPA on coastal fisheries.

Maggs, Jade Quinton. January 2011 (has links)
Thesis (M.Sc.)-University of KwaZulu-Natal, Westville, 2011.
440

The demand for international reserves in the Eurosystem. Implications of the changeover to the third stage of EMU.

Badinger, Harald January 2000 (has links) (PDF)
In this paper we analyse the implications of the euro for the international reserves in the Eurosystem. Two conceptually different effects of the changeover have to be distinguished: a technical effect that largely arises as a matter of accounting, and a behavioural effect that stems from the fact that the optimal demand of the aggregate Eurosystem is not equal to the sum of the optimal country levels. The technical effect arises from two main sources: the abolishment of the ECU-creating mechanism, and the redefinition of international reserves which precludes (former) reserves that were denominated in euro-currencies. As a result the average reserves of the Eurosystem in 1999 amounted to $287 billion, considerably less than in 1998 ($345 billion). We then derive a reserve demand function for the aggregate Eurosystem using panel data estimation techniques and simulate reserve demand for the situation after the regime shift. The optimal aggregate level of reserves turns out to be some $188 billion, which implies excess reserves in the Eurosystem amounting to approximately $100 billion in the year 1999. We go on by proposing a key by which this excess could be allocated to the individual countries taking the asymmetric distribution of reserves in the Eurosystem into account. Finally we classify and enumerate the proposals for making use of the estimated reserve overhang. (author's abstract) / Series: EI Working Papers / Europainstitut

Page generated in 0.0152 seconds