• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 672
  • 39
  • 31
  • 11
  • 11
  • 10
  • 9
  • 9
  • 5
  • 4
  • 4
  • 4
  • 3
  • 3
  • 2
  • Tagged with
  • 1280
  • 1280
  • 466
  • 370
  • 333
  • 198
  • 188
  • 162
  • 158
  • 146
  • 140
  • 138
  • 133
  • 131
  • 128
  • 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.
381

Ecology of desert-dwelling giraffe Giraffa camelopardalis angolensis in northwestern Namibia

Fennessy, Julian Thomas January 2004 (has links)
Doctor of Philosophy / The population size and range of giraffe Giraffa camelopardalis have been greatly reduced in Africa in the past century, resulting in geographical isolation of local populations and some herds surviving at the edge of the species’ preferred range. Numerous factors have contributed to these declines, but historical analysis indicates that habitat loss and fragmentation, human encroachment, disease and poaching are the main threatening processes. These processes can be expected to continue to impact on giraffe populations, particularly as human populations grow and needs for land and resources increase. This study used field data and laboratory analyses to investigate the taxonomy, behaviour and ecology of desert-dwelling giraffe Giraffa camelopardalis angolensis in the northern Namib Desert. This population resides at the extreme of the giraffe’s range. My research also complements the community-based natural resource management (CBNRM) program of the Namibian government, and provides baseline data on the current population status and structure of giraffe in the Kunene Region. The field data, genetic, habitat and forage samples used in this study were collected by myself and a number of research assistants over a period of two years (2001 to 2003), following preliminary research that I undertook between 1999 and 2001. Laboratory analysis of genetic samples was conducted by Dr R. Brenneman and his team at Henry Doorly Zoo, Omaha, NB., as well as by Mr D. Brown at UCLA, CA. Mr W. Gawa!nab and his team at the agricultural laboratory, Ministry of Agriculture, Water and Rural Affairs, Namibia, conducted chemical analyses on plant samples that form part of the giraffe’s diet. The genetic architecture of Namibian giraffe was investigated, including the samples from the desert-dwelling giraffe of the northern Namib Desert and giraffe from Etosha National Park. The results were compared with genetic profiles of giraffe subspecies throughout Africa, but in particular with G. c. giraffa which is the currently-accepted nomenclature of the Namibian giraffe. Results indicated that the Namibian giraffe has five unique haplotypes and is genetically distinct from G. c. giraffa or any other extant subspecies; it is considered here, tentatively, to represent G. c. angolensis. Furthermore, the Namibian Abstract iv giraffe has been separated from other populations for an extended period. Some gene flow has occurred between the desert-dwelling and Etosha NP giraffe population, and can be attributed to recent translocations between these regions. Within the study region, a sharing of haplotypes between three studied subpopulations indicated gene flow among giraffe throughout the northern Namib Desert, and this was confirmed by field-based monitoring. Taken together, these findings suggest that Namibian giraffe should be viewed as important for the conservation of overall genetic variation within Giraffa camelopardalis, although further investigation into the taxonomy of the Namibian form is warranted. Following these findings, I then investigated the behaviour and ecology of the desert-dwelling giraffe. As no previous study has been published on the ecology of G. c. angolensis, there is an information gap in our knowledge of this subspecies. One hundred and fifty six giraffe were identified individually using field-based identification methods and digital imagery. An assessment of the population structure and dynamics indicated marked variation in numbers, sex and age structure, herd structure and densities between three study areas. These variations possibly arose from differences in study area size, aridity, availability of forage and human impacts. I also investigated levels of associations between giraffe within the population using a simple ratio technique, and observed that increased association occurred in smaller populations; there appeared to be a matrilineal social structure. In one bull-biased population, a higher degree of association between bulls was observed compared to bulls in the other two populations. To gain further insight into the distribution and range of giraffe, I collected GPS locations from a combination of field-based monitoring and GPS satellite collars. The GPS satellite collars were the first trial of this technology on giraffe in Africa. Using Range Manager, a MapInfo animal location analysis extension program, I estimated 100% and 95% minimum convex polygon for daily, monthly and annual home range sizes of giraffe in the northern Namib Desert. Giraffe were observed to have large home ranges, with the largest individual range for a bull, Africa-wide, being recorded in this study. Large home ranges correlated with low population density, reduced diversity of forage and, in bulls, increased search areas for receptive cows. Giraffe movements occurred predominantly along riparian woodlands, although seasonal use of other habitats was recorded. Observations Abstract v Abstract vi and data from four GPS satellite-collared giraffe provided high-resolution data on daily movements, and indicated a pattern of highly biphasic movement behaviour that correlated with ambient temperatures. Diurnal activity budgets varied between the sexes, with cows spending more time feeding and resting, while bulls walked and ruminated more frequently. Juveniles rested more often than other giraffe. Seasonal variation in activity budgets was evident, perhaps reflecting use of an energy maximiser strategy for cows and an energy minimiser strategy for bulls. The establishment of artificial water points in the Hoanib River during the study period appeared to alter the seeming independence of giraffe on water in the northern Namib Desert, and also resulted in small-scale shifts in use of the riparian woodland by elephant. To investigate the diet of giraffe, I observed animals feeding in the field and also carried out laboratory analyses of the chemical content of preferred plant species. Seasonal changes in the abundance, moisture and protein content of available food plants correlated with shifts in the diet of giraffe. Giraffe impacted on their preferred forage source, Faidherbia albida, causing distinct structural changes in the individual plants and the F. albida population. This impact, combined with elephant damage and seasonal flood events, has resulted in a shift in the age structure and dynamics of the F. albida population over the past two decades. Finally, I present a brief overview on the history of conservation and management in the Kunene Region. The established CBNRM program provides a baseline for future wildlife conservation and management, of which the desert-dwelling giraffe could be an integral component for non-consumptive tourism. Long-term research on the population’s status, range, behaviour, social structure, habitat requirements, and ecology would help to provide a better understanding of the giraffe’s adaptation to the arid environment, while focussed legislation would enable increased control of communal lands and continue to benefit community-based conservancies.
382

Understanding employment : a prospective exploration of factors linked to community-based employment among federal offenders /

Gillis, Christa A. January 1900 (has links)
Thesis (Ph.D.) - Carleton University, 2002. / Includes bibliographical references (p. 148-159). Also available in electronic format on the Internet.
383

'Doing time on the outside': transcarceration and the social control of criminalized women in the community /

Maidment, MaDonna R. January 1900 (has links)
Thesis (Ph.D.) - Carleton University, 2005. / Includes bibliographical references (p. 247-267). Also available in electronic format on the Internet.
384

From prison into the community : the impact of release planning on sexual recidivism for child molesters : a thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in the University of Canterbury /

Willis, Gwenda M. January 2009 (has links)
Thesis (Ph.D.)--University of Canterbury, 2009. / Typescript (photocopy). Also available via the World Wide Web.
385

A study on the conceptualization and programming of a community-based day training centre in psychiatric rehabilitation /

Wong, Lai-ngor, Jenny. January 1993 (has links)
Thesis (M. Soc. Sc.)--University of Hong Kong, 1993. / Includes bibliographical references.
386

Why not share the knowledge? how after-school community technology centers nurture community and agency among urban adolescent peer support networks /

Chiu, Grace May, January 2008 (has links)
Thesis (Ph. D.)--UCLA, 2008. / Vita. Description based on print version record. Includes bibliographical references (leaves 201-210).
387

A study on the conceptualization and programming of a community-based day training centre in psychiatric rehabilitation

Wong, Lai-ngor, Jenny. January 1993 (has links)
Thesis (M.Soc.Sc.)--University of Hong Kong, 1993. / Includes bibliographical references. Also available in print.
388

Opposing worldviews : Cuicatec values of cultural and natural resources in a western paradigm /

Hearn, Kyle P. January 1900 (has links)
Thesis (M.A.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 115-120). Also available on the World Wide Web.
389

Exploring the impacts of sugarcane expansion in La Montaña, Guatemala: A feminist community-based research project

Easby, Angela 04 January 2016 (has links)
Sugarcane cultivation is expanding throughout the Pacific coast of Guatemala, with political and ecological consequences for subsistence communities. The majority of sugar production occurs in the departments of Santa Rosa, Escuintla, Suchitepequéz and Retalhuleu on the Pacific coast. As sugarcane expands into fincas (large plantations owned by an agricultural elite), the amount of land available for rent to landless or land-poor farmers is reduced. Sugarcane expansion provokes various forms of environmental degradation, including deforestation, air pollution, water contamination, and draining of rivers and wetlands. Sugarcane cultivation also provokes health problems for workers and those who live near these sites, including kidney failure, dehydration, and respiratory and skin problems. As sugarcane expands, subsistence communities in the surrounding area are subject to these detrimental effects of sugarcane cultivation. Building academic knowledge on the impacts of sugarcane expansion is necessary in order to be better equipped to be in solidarity with, or support subsistence communities facing this expansion. It is crucial to meaningfully involve subsistence communities in this process of knowledge production since it is the inhabitants of these places, not researchers, who are the experts on these issues. In this thesis, I describe a feminist community-based research project in the community of La Montaña, Guatemala, on the impacts of sugarcane in their community. The key goals of this research were to 1) collaboratively identify with participants specific areas of interest regarding sugarcane impacts, and investigate these areas; 2) analyse data with an awareness of gender and 3) share research findings with the community to facilitate the possibility of action or critical reflection. I used public group discussions, semi-structured interviews, participant observation and drop-in sessions to collect data. Through this process, the issues of political inaction (as a response to sugarcane) and deforestation (driven by sugarcane) emerged as two key areas of interest which I explore in this thesis. The main finding of my research was that sugarcane cultivation is a divisive force in La Montaña: while community members agree on the negative aspects of sugarcane cultivation, they disagree about how to address this issue. As I find, these divisions occur along the axes of gender and age. These divisions also constitute an obstacle to a collective political platform to address sugarcane expansion, and a potential site for intracommunity violence as sugarcane continues to expand. These findings were presented to the community in a public presentation in February 2015, to provide a space for critical discussion of these issues. Overall, this research identifies a key difficulty that subsistence communities face in the context of agroindustrial expansion: as the importance of collective action grows, so too do intra-community divisions. This research highlights the need for long-term solidarity-building work in communities on the Pacific coast of Guatemala, in order to be able to achieve the changes that community members feel powerless to enact alone. / Graduate
390

Perspectives on capacity strengthening and co-learning in communities: Experiences of an Aboriginal community-based research steering committee

Stringer, Heather 05 January 2016 (has links)
Community-university partnerships have become more prevalent to support community-based research, especially as a collaborative approach to research with Aboriginal Peoples in Canada. One practice is the activation of a community-based research steering committee to initiate, govern, and review research pertaining to their local community. Within literature related to community-based research, perspectives on capacity strengthening and co-learning from the members of a community-based research steering committee are under-represented. A qualitative case study approach was used to explore the research question: What are the experiences of the Alexander Research Committee (ARC) members in defining and operationalizing capacity strengthening and co-learning across multi-sectoral research projects? Nine current and past members of the ARC participated in individual semi-structured interviews and five of these ARC members also participated in a subsequent focus-group discussion. Analysis of these qualitative data indicated that foundational relationships and a conducive learning environment are key factors for a community-based research committee to experience co-constructed knowledge and learning. The findings of this study highlight the importance of an operational foundation of trusting relationships in order to establish and sustain a working environment where a community-based research committee can learn together and from each other. This study also yielded insights about how this community-based research committee predicated capacity strengthening from the understanding that ‘we are all learners’, with each member bringing forward unique strengths, questions and growth to the research processes. / Graduate

Page generated in 0.063 seconds