• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 13
  • Tagged with
  • 15
  • 7
  • 7
  • 5
  • 4
  • 4
  • 4
  • 4
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 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

Habitat Fragmentation by Land-Use Change: One-Horned Rhinoceros in Nepal and Red-Cockaded Woodpecker in Texas

Thapa, Vivek 12 1900 (has links)
This research focuses on the spatial analysis of the habitat of two vulnerable species, the one-horn rhinoceros in the grasslands of southern Nepal, and the red-cockaded woodpecker in the Piney woods of southeast Texas, in the USA. A study sites relevant for biodiversity conservation was selected in each country: Chitwan National Park in Nepal, and areas near the Big Thicket National Preserve in Texas. Land-use differs in the two study areas: the first is still undergoing agrarian development while the second is in a technological phase and undergoing urbanization processes. Satellite remote sensing images were used to derive land-cover maps by supervised classification. These maps were then processed by Geographic Information Systems methods to apply habitat models based on basic resources (food and cover) and obtain habitat suitability maps. Several landscape metrics were computed to quantify the habitat characteristics especially the composition and configuration of suitable habitat patches. Sensitivity analyses were performed as the nominal values of some of the model parameters were arbitrary. Development potential probability models were used to hypothesize changes in land-use of the second study site. Various scenarios were employed to examine the impact of development on the habitat of red-cockaded woodpecker. The method derived in this study would prove beneficial to guide management and conservation of wildlife habitats.
12

The viability of legalising international trade in Rhino horn and the possible effect on Rhino poaching in South Africa

De Beer, Willem 02 1900 (has links)
The existence of the rhino is under serious threat. South Africa has experienced a dramatic increase in rhino poaching since 2008. With the current trend of poaching, rhino in South Africa will soon become extinct. The current strategies to protect rhino have proved to be ineffective. The common view is that rhino poaching is morally wrong, and associated with greed and evil intentions and that rhino poaching must be stopped; however, there are two schools of thought regarding two main approaches (in association with current strategies) to be used in order to stop or limit poaching. The first school of thought supports the CITES ban on international trade in rhino horn, and believes that rhino poaching can only be stopped by eliminating demand (the “conventional approach”). The second school of thought is in favour of the legalisation of international trade, and argues that any solutions to the rhino poaching problem must address the underlying economic forces. This is called the sustainable approach. The research aimed to investigate the effectiveness of the ban on international trade in rhino horn, as well as the viability of legalising international trade. The effectiveness of the current strategies was also investigated. A qualitative research design was used, and eighteen participants were selected in order to obtain information by means of semi-structured interviews and questionnaires.The first school of thought supports the CITES ban on international trade in rhino horn, and believes that rhino poaching can only be stopped by eliminating demand (the “conventional approach”). The second school of thought is in favour of the legalisation of international trade, and argues that any solutions to the rhino poaching problem must address the underlying economic forces. This is called the sustainable approach. The research aimed to investigate the effectiveness of the ban on international trade in rhino horn, as well as the viability of legalising international trade. The effectiveness of the current strategies was also investigated. A qualitative research design was used, and eighteen participants were selected in order to obtain information by means of semi-structured interviews and questionnaires. A literature review was also conducted, for the purpose of evaluating the responses of participants, and also for the purpose of validity and reliability. The findings indicated that the scales tip in favor of a well-managed, legalized trade, inter alia, to make funds available to rhino owners, rhino custodians and the government, on the one hand, and, on the other hand, to reduce the reward and increase the risk to the poacher. Findings also indicated that a legalized trade cannot be implemented in isolation; it goes hand in hand with increased security and improved law enforcement, while strategies such as dehorning and translocation still have a role to play. Finally, findings also indicated that communities need to be involved in the sustainable use approach. These communities are currently excluded from the benefits derived from the neighboring protected areas, thereby making them susceptible to being recruited as poachers. / Environmental Sciences / Ph. D. (Environmental Management)
13

Understanding the attitudes and perceptions of South African residents towards anti-rhino poaching initiatives : a study in Bloemfontein, Free State province, South Africa

Gyimah, Issah 12 1900 (has links)
This dissertation reports on the findings of a study conducted in order to understand the impact of the attitudes and perceptions of some residents in Bloemfontein, towards rhino poaching and anti-rhino poaching initiatives in South Africa. Prominent theoretical models, such as the theory of reasoned action (TRA), the theory of planned behaviour (TPB), the decomposed theory of planned behaviour (DTPB), and the Rosenberg and Hovland Tripartite model of attitudes and perceptions, were used to help understand Bloemfontein residents’ attitudes and perceptions towards rhino poaching and anti-rhino poaching ini-tiatives in South Africa. Data was collected from residents in areas such as the Central University of Technology, the University of the Free State, the Waterfront Mall and the Mimosa Mall, respectively. A total of 252 usable responses were obtained, and the sta-tistical package for social sciences (SPSS) as well as a descriptive statistical instrument, were used to analyse the data. The findings of the study revealed that residents’ attitudes and perceptions to-wards rhino poaching and anti-rhino poaching initiatives contribute significantlytowards their intentions to act positively or negatively in curbing or reducing rhino poaching crime in South Africa. The research findings also showed that while there are differences in attitudes and perceptions between residents across different demographic groups, demographic factors alone are weak predictors of residents’ attitudes and perceptions towards rhino poaching. The study found that perceived trust, practical approaches, intentions to act and effective community involvement significantly contribute to residents’ positive attitudes and perceptions towards anti-rhino poaching initiatives in South Africa. The implications of other factors such as corruption, economic challenges, willingness of the authorities to act, and the heightened demand for rhino horn trade, have been discussed, and suggestions for future research are made. / Environmental Sciences / M.A. (Environmental Management)
14

The illegal trade in endangered animals in KwaZulu-Natal, with an emphasis on rhino poaching

Griffiths, Megan Laura 02 1900 (has links)
The illegal trade in endangered animals in KwaZulu-Natal, with an emphasis on rhino poaching, is tactically addressed in this dissertation. The aim is to expose the nature and extent of these crimes; the victims, offenders and modus operandi involved; the adjudication of wildlife offences; the causes and consequences concerned; the relevant criminological theories to explain these crimes; and recommendations for prevention. This research intends to examine the contemporary pandemic of rhino poaching in KwaZulu-Natal, South Africa, and offer potential techniques for intervention. Furthermore, one of the main goals of the study is to reveal and enhance the extremely neglected field of conservation criminology. A general disregard by society for the environment, as well as the overall ineffectiveness and corruption of criminal justice and conservation authorities, comes to the fore. The purpose of the research is therefore to suggest possible prevention strategies in order to protect the rights of endangered species. / Criminology and Security Science / M.A. (Criminology)
15

The illegal trade in endangered animals in KwaZulu-Natal, with an emphasis on rhino poaching

Griffiths, Megan Laura 02 1900 (has links)
The illegal trade in endangered animals in KwaZulu-Natal, with an emphasis on rhino poaching, is tactically addressed in this dissertation. The aim is to expose the nature and extent of these crimes; the victims, offenders and modus operandi involved; the adjudication of wildlife offences; the causes and consequences concerned; the relevant criminological theories to explain these crimes; and recommendations for prevention. This research intends to examine the contemporary pandemic of rhino poaching in KwaZulu-Natal, South Africa, and offer potential techniques for intervention. Furthermore, one of the main goals of the study is to reveal and enhance the extremely neglected field of conservation criminology. A general disregard by society for the environment, as well as the overall ineffectiveness and corruption of criminal justice and conservation authorities, comes to the fore. The purpose of the research is therefore to suggest possible prevention strategies in order to protect the rights of endangered species. / Criminology and Security Science / M.A. (Criminology)

Page generated in 0.0533 seconds