The degradation of rangeland grass is currently one of the most serious environmental problems in South Africa. Increaser and decreaser grass species have been used as indicators to evaluate rangeland condition. Therefore, classifying these species and monitoring their relative abundance is an important step for sustainable rangelands management. Traditional methods (e.g. wheel point technique) have been used in classifying increaser and decreaser species over small geographic areas. These methods are regarded as being costly and time-consuming, because grasslands usually cover large expanses that are situated in isolated and inaccessible areas. In this regard, remote sensing techniques offer a practical and economical means for quantifying rangeland degradation over large areas. Remote sensing is capable of providing rapid, relatively inexpensive, and near-real-time data that could be used for classifying and monitoring species. This study advocates the development of techniques based on remote sensing to classify four dominant increaser species associated with rangeland degradation namely: Hyparrhenia hirta, Eragrostis curvula, Sporobolus africanus and Aristida diffusa in Okhombe communal rangeland, KwaZulu-Natal, South Africa. To our knowledge, no attempt has yet been made to discriminate and characterize the landscape using these species as indicators of the different levels of rangeland degradation using remote sensing. The first part of the thesis reviewed the problem of rangeland degradation in South Africa, the use of remote sensing (multispectral and hyperspectral) and their challenges and opportunities in mapping rangeland degradation using different indicators. The concept of decreaser and increaser species and how it can be used to map rangeland degradation was discussed. The second part of this study focused on exploring the relationship between vegetation species (increaser and decreaser species) and different levels of rangeland degradation. Results showed that, there is significant relationship between the abundance and distribution of different vegetation species and rangeland condition. The third part of the study aimed to investigate the potential use of hyperspectral remote sensing in discriminating between four increaser species using the raw field spectroscopy data and discriminant analysis as a classifier. The results indicate that the spectroscopic approach used in this study has a strong potential to discriminate among increaser species. These positive results prompted the need to scale up the method to airborne remote sensing data characteristics for the purpose of possible mapping of rangeland species as indicators of degradation. We investigated whether canopy reflectance spectra resampled to AISA Eagle resolution and random forest as a classification algorithm could discriminate between four increaser species. Results showed that hyperspectral data assessed with the random forest algorithm has the potential to accurately discriminate species with best overall accuracy. Knowledge on reduced key wavelength regions and spectral band combinations for successful discrimination of increaser species was obtained. These wavelengths were evaluated using the new WorldView imagery containing unique and strategically positioned band settings. The study demonstrated the potential of WorldView-2 bands in classifying grass at species level with an overall accuracy of 82% which is only 5% less than an overall accuracy achieved by AISA Eagle hyperspectral data. Overall, the study has demonstrated the potential of remote sensing techniques to classify different increaser species representing levels of rangeland degradation. In this regard, we expect that the results of this study can be used to support up-to-date monitoring system for sustainable rangeland management. / Thesis (Ph.D.)-University of KwaZulu-Natal, Pietermaritzburg, 2011.

Until recently, there have been different and sometimes conflicting views on whether or not the communal land tenure system (CLTS) has a positive or negative impact on rural economic welfare. This study analyses some trends associated with the CLTS in the Ditsobotla area of the NorthWest province, focusing on the implications for rural economic welfare. The results of the study suggest that the CLTS is extremely important in order to sustain the rural economy, and therefore this dissertation presents developmental, policy and research options for consideration by government and other affected stakeholders for the betterment of the livelihood of people in the Ditsobotla area. The study adopts participatory research techniques in the selected villages of Springbokpan and Mooifontein. It also reflects on land tenure experiences in other African countries. The dissertation concludes with a suggestion that the South African government should engage in in-depth research programmes prior to the implementation of the envisaged communal land tenure reform legislation and that, the state should secure sufficient funding to boost agricultural activities in the area. Taking all these factors into account, a view is held that all developmental endeavours in the area must be informed by the collective participation of the affected local people, and their efforts must be united for the enhancement of their livelihood. / Development Studies / M.A. (Development Studies)

The Rainbow Family of Living Light is an intentional society devoted to achieving world peace through spiritual healing. A loose association of spiritual seekers that explicitly rejects all forms of leadership and imposed authority, it represents an interesting example of an anarchist and communal society. Rainbow Family events regularly draw thousands of people. These take place all over the world. While some participants may question the label, it can be described as one of the biggest and most geographically diverse New Age groups on the planet. As such, it is a very important factor in shaping the entire present day New Age movement. I conducted fieldwork with the Rainbow Family between the autumns of 1998 and 2002, traveling with the nomadic group throughout the United States. The Rainbow Family rejects any sort of official membership, accepting anyone who attends its events as an equal participant. Spending extended periods of time in the field, I became immersed in this alternative society. The distinction between ethnographic researcher and informants was highly problematic under such circumstances. This made me acutely aware of the issues surrounding fieldwork and anthropological authority. My own work began to seem quite similar to the spiritual seeking of other participants. As such, I began to consider the commonalities between anthropology and the spirituality encountered within the Rainbow Family. The spiritual discourses produced by Rainbow Family participants are uniquely eclectic and ludic in tone. In a setting explicitly championing individual freedom rather than coercion, there is no sense of spiritual orthodoxy. The ways in which spiritual discourses are treated by the Rainbow Family display interesting attitudes towards truth, authority, and reality. These attitudes are reminiscent of epistemological orientations within postmodernist anthropology. Rainbow Family participants find noteworthy solutions to the apparent ontological dilemmas postmodernism presents. It is my hope that looking at the Rainbow Family of Living Light will suggest a viable way for anthropology to productively deal with its current crisis of identity.

Concerns were raised over the past decades, on the degradation condition of arid and semi-arid rangelands in South Africa, mainly in areas under communal land management. Baseline information on soil quality is essential to monitor changes in land conditions and assess impacts of land uses and management over time. The objectives of this study, initiated within the framework of the Desert Margins Program, were to characterize and establish baseline indicators of soil quality health, and to investigate the potential effects of grazing and exclusion management (hypothesized as grazing effect) on selected soil properties in the western Bophirima District in South Africa. Soils were characterized for physical, chemical, enzymatic activity and microbial biomass properties, and grazing effects were evaluated on selected properties. The aboveground herbaceous species composition and biomass production were also determined. Sandy, poor fertile soils (low organic carbon and phosphorus) characterized all sites. Various levels of enzymatic and microbial biomass were recorded at the sites. Grazing had no significant effects on most of soil chemical properties, but did affect selected enzymatic activities, site-specifically. No significant differences of grazing effects were observed on soil microbial biomass. The inconsistent responses of soil properties across the sites prompt to caution regarding the generalization and/or extrapolation of grazing effects to other areas, without consideration of the prevailing environmental and management characteristics to each site. Notwithstanding the alarming plea about degradation at these communal sites, indicators of soil quality did not significantly differ between communal and surrounding commercial and/or game managed areas, despite their apparent vegetation degradation. The results showed that rangeland under the communal management were characterized by increaser species of low grazing value, but this situation did not necessarily interpret severe soil degradation as tacitly described. Soil degradation depends on land use, management and environmental conditions, and references are needed to assess degradation. Important interrelationships between the aboveground vegetation and soil belowground activity were observed. This emphasized the need to integrate both soil and vegetation into rangeland monitoring, as these interrelationships and associated ecological processes sustain rangeland health. Further research is needed to re-examine the "inferred degradation of rangelands in communal areas, taking into consideration their history, and using appropriate baselines and references sites. Only then, can degradation trends and hotspots be identified and thereof, appropriate management decisions (through participatory research) taken locally to combat degradation and sustain long-term rangeland resources uses. / Thesis (Ph.D. (Environmental Science))--North-West University, Potchefstroom Campus, 2007.

Understanding the conflict potential of climate variability is critical for assessing and dealing with the societal implications of climate change. Yet, it remains poorly understood under what circumstances – and how – extreme weather events and variation in precipitation patterns affect organized violence. This dissertation suggests that the impacts of climate variability on organized violence are conditional on specific climate patterns, the sensitivity of livelihoods, and state governance. These theoretical conjectures are subjected to novel empirical tests in four individual essays. Three essays investigate the relationship between climate variability and communal and civil conflict through sub-national quantitative analysis focusing on Sub-Saharan Africa. The fourth essay sheds light on causal mechanisms leading to participation in land-related conflict based on interview material on 75 ex-participants in violence from Mt. Elgon, Kenya. Essay I suggests that the exposure of vulnerable agricultural livelihoods to sustained drought increases the risk of civil conflict violence. Essay II indicates that rainfall anomalies increase the risk of communal violence, an effect which is amplified by political marginalization. Essay III finds support for the proposition that volatility in resource supply increases the risk of communal conflict over land and water in remote regions, which tend to have limited state presence. Essay IV proposes that individuals depending on agriculture are prone to participate in land-related conflict as they face impediments to leaving a conflict zone, and additionally have high incentives to partake in fighting for land. Taken together, the dissertation furthers our understanding of the specific economic and political context under which climate variability impacts armed conflict. This knowledge is important for conflict-sensitive adaptation to climate change and conflict prevention efforts.

Climate change presents a wide range of concerns that can jeopardize international security. Among those concerns are neo-Malthusian worries of diminishing natural resources. Predictive models suggest that rainfall and temperature anomalies have the potential to reduce water basins, crop production, increase land degradation among other perils that threaten human security. This concern is particularly true in sub-Saharan Africa given the region’s strong dependence on rain-fed agriculture. Despite strong claims from various world leaders and scientists of a direct climate-conflict nexus, little empirical evidence has been devoted to find a systematic causal pathway of this kind. What is more, the literature not explored the relationship between climate change and low-intensity forms of social unrest. Therefore, contrary to most of the literature that explores a direct climate-conflict relationship, this dissertation contributes to the literature along two lines. First, it explores the relationship between climate change and socio-political unrest. Second, rather than simply assume a direct relationship between climate shocks and conflict, this dissertation examines: a) the effects of climate change on food scarcity, and the impact of that scarcity, in turn, on the likelihood of social unrest and conflict, and b) the effects of climate change on land degradation, that the impact of that degradation, in turn, on the frequency of communal violence.

Language is a personal process, a product of not only our development, but of one’s culture. Yet in the United States, an actor must be able to speak without a detectable dialect to be competitive in the entertainment world. How can voice teachers in a multi-cultural society, train students with more attention to the individuality of the students we educate? In this thesis, I present the information I have found important in my development as a voice teacher that has influenced my approach to training actors to use the Neutral American dialect. I begin by outlining human language acquisition and the behavior of code-switching to establish an understanding of how communication is developed. Next, the journey of voice and dialect training in the United States is traced from the 19th century to the present so that we may understand who shaped our speech standards and the motivations behind their efforts. Lastly, I outline how I incorporated my knowledge of language acquisition and code-switching into the sophomore Voice and Speech For the Actor class I taught at VCU in the Spring of 2013 which introduced students to the International Phonetic Alphabet and the Neutral American Dialect. I hope this information inspires other 21st century educators to embrace an inclusive approach to dialect training in a multi-cultural classroom.

Master of Public Health / Department of Human Nutrition / Sandra B. Procter / Family meals and meals with caregivers can be sources of social support. Current literature indicates that social support is important for physical and psychological health and well-being. There has been no published research looking at the role of communal meals in collegiate dining centers as sources of social support. This study investigated the possibility that communal meals in a collegiate dining center and eating with other people in these settings may be related to perceived social support, academic success, frequency of family meals, and/or degree of involvement in college extracurricular activities. To investigate these relationships, first-year Kansas State University students living in the residence halls of the Derby Complex (Ford, Haymaker, Moore, and West Halls) were administered a survey about dining center usage habits. The survey included the previously tested Interpersonal Relationship Inventory Short Form by V.P. Tilden (n.d.) as a measure of perceived social support. Participants granted access to their first semester Kansas State University grade point average and semester dining center usage data. Surveys were completed online (n=216) and in paper format (n=89) for a total of 303 participants. There was no significant difference between the demographics of those that completed the online versus paper formats of the survey. Therefore, the online and paper formats of the survey were analyzed together. The data were analyzed for all participants and for males (n=94) and females (n=209) separately. Results revealed multiple significant relationships (p<0.05). Results related to grade point average and perceived social support revealed a significant positive relationship between frequency of eating in the dining center and grade point average for all participants combined. This relationship was also noted for males and females analyzed separately. Frequency of eating with others was found to be significantly positively correlated to perceived social support score for all participants combined, and for males and females analyzed separately. Frequency of eating with others was significantly positively correlated with grade point average for males alone and females alone, but not all participants combined. Further research is needed to determine if the relationships are causal and if so, the direction of causality in the relationships.

This thesis discusses the disposal of the biodegradable communal waste (hereinafter BRKO) in the city of Zlín. In the beginning it introduces the general terms and keywords and legal regulations concerning waste disposal. It mentions environmental effects of the BRKO dump, and also ways of collecting and further treatment of BRKO. The main part of the thesis describes the current BRKO management system in the city of Zlín and based on the projects that have been completed up until now it analyses management efficiency. The thesis shows an expected progression in the total amount of BRKO in the following years due to the new limits placed on BRKO dump by the Plan of Waste Management Program. Based on the collected data, this thesis proposes an optimal solution for waste collection and waste treatment in the city of Zlín and evaluates the environmental and economic benefits of the suggested waste management system.

Student Number : 9904953T - PhD thesis - School of Animal, Plant and Environmental Science - Faculty of Science / This study seeks to combine the knowledge of science and society to elicit the relationship between the harvesting of woody plant species and the local availability of woody species in South African savannas. Ten villages located in the former communal areas and homelands within three broad vegetation types (i.e., Mixed lowveld bushveld, Eastern thorn bushveld, and Natal lowveld bushveld) were studied. The study, conducted in the framework of the coupled human-environment system poses challenges to both scientists and managers (e.g., setting common goals). Data were collected using modified Whittaker plots (MWP) and focus group discussions (FGD), denoting ecology and society, respectively. There were nine 1000m² MWP plots sampled per village, each having nested 1m², 10m² and 100m² subplots. The FGD involved six groups of local people based on gender and age. The study revealed that the harvesting of woody plant species is a source of local disturbance to woody vegetation. Generally, there were more woody species in locations farther from settlements, having a mean of 41.97 ± 3.9, than for the intermediate (38.27 ± 5.6) and near locations (19.9 ± 4.2) within the 1000m² plots, the result of the reduction in species closer to settlements from higher harvesting levels. The larger sampling plot size of 1000m² of the MWP had the highest diversity, decreasing sequentially to the smallest scale (1m²). The density of the woody species was highest in the intermediate locations (517 ± 80 plants/ha), followed by the far and near, relative to the settlements. The Natal lowveld bushveld broad vegetation type had the highest mean density of trees (573 ± 71 trees/ha) compared to the Mixed lowveld bushveld (366 ± 64 trees/ha) and the Eastern thorn bushveld (312 ± 40 trees/ha). The stem diameters of trees were generally higher in the villages of the Mixed lowveld bushveld than the other two vegetation types. The study reaffirmed that anthropogenic disturbances within savannas impact vegetation and need to be studied concurrently with other disturbance factors (e.g., biotic and abiotic or environmental). The mean total coppice shoots of stumps within the 1000m² plots was relatively higher in the near locations (38.4%), than the far (33.0%) and intermediate (28.7%). This difference in coppicing shows that although near locations were less species rich, which is a result of disturbance, the growth of shoots may nevertheless be greater. Harvesting disturbance will possibly favour the regeneration of some species, as well as the maintenance of biodiversity. Whilst 135 woody species (from a total 191 from 42 plant families) sampled in the field were used by the local people, the community knowledge yielded almost twice as many (267 species, from 69 plant families). The ratio of mean useful woody species to total woody species remained relatively constant at about 1.0:1.1 from the near to far locations around the villages and accompanied by increased woody species diversity with distance from village. The MWP sampling yielded eight broad use categories (i.e., medicinal, wild edible fruits, fuelwood, housing and fencing poles, craft (e.g., carving), cultural, local beverages (e.g., alcohol)), and nine for the FGD (the eight for the MWP plus indigenous furniture). According to the local people, the highest number of species was used for medicine (27.8% of species), followed by fuelwood (19.2%) and wild edible fruits/seeds (19.1%). Over half of the species had multiple uses (i.e., three to eight uses), raising questions of possible threats to their persistence. Useful woody species were not restricted to any particular location or vegetation type. Large sized trees were subjected to even more uses than smaller trees, another source of conservation concern. Fifteen of the woody plant species are presently protected by law in South Africa (e.g., Adansonia digitata, Podocarpus latifolius, Mimusops caffra, Philenoptera violacea), while others are facing various forms of regional threats (e.g., Alberta magna, Catha edulis, Ocotea bullata). There is the need to popularise and make people (both local and outsiders) aware of the state of NTFP species, using local and village level information as an additional criterion for describing conservation threat (e.g., proposed “Locally Brown List” – Chapter 4). The older generation of local people were highly knowledgeable in terms of the woody species used for medicine, craft, fencing and housing poles, the middle aged in beverage making species, and the younger generation in fuelwood species. Overall, older males were highly knowledgeable of the useful species. The generally strong correlation (r = 0.99, p <0.0001) between the cumulative woody species diversity from field and community knowledge suggests the need to integrate data using multi-disciplinary approach and also to manage NTFP species. Although threat reduction assessments (TRA) and monitoring have previously been suggested, the participation of local people, harvesters and users will be crucial in making TRAs effective. In conclusion, the harvesting of NTFPs, and the impacts of the changes in the NTFP species on total diversity in savannas need to be understood in order to move towards a more holistic approach to conserving the woody species that may be at risk of extinction through harvesting. Disturbance criteria that describe harvesting levels should be set to guide research and management protocols. Finally, when discussing NTFPs and the species from which they are harvested, management should aim at incorporating all the factors that affect sustainability, such as land and resource tenure and local participation, the political economy, appropriate production and development cycles.