Thesis (MA (Archaeology))--University of Stellenbosch, 1985. / This thesis consists of five separate studies (Chapters 2-6), each presented in the form of a self contained research paper. Chapter 2 deals with the analysis of palynomorph (pollen and spore) assemblages, while Chapters 3 to 6 deal with the analysis of charcoal assemblages. The pollen record preserved in the 3 m deep Norga Peat, located on the coastal platform west of the town of George (Fig.l.l), was analysed using measures of relative abundance of identified pollen types and by measures of pollen concentration. Evidence for three climatic phases in the last 4 000 years was obtained. In the earliest phase 4000 - 2500 B.P. conditions were favourable for the spread of forest, the climate was equable and adequate rain was received in summer. From 2500 - 1800 B.P. the climate was less favourable and west of George, forest vegetation only survived in protected and relatively well watered kloofs and lower mountain slopes. The climate then ameliorated and since 1800 B.P. conditions have been similar to the present. However, the present day climate is not as favourable for forest vegetation as was the climate during the Holocene climatic optimum before 2500 B. P • The Cango Valley lies 75 km north of the Norga site, inland of the town of Oudtshoorn and below the Swartberg Mountains. ...

Palmiet peatlands in the agricultural landscape are viewed by farmers as problematic. They obstruct the effective passage of water along watercourses and therefore promote localized flooding of lands and infrastructure, and they trap sediment delivered along watercourses that drowns fields and infrastructure with sedimentary deposits. These events are problematic for farmers trying to make a living off the land. Wetlands are also often viewed as wastelands that should be put to more productive use. The obvious thing to do is to bring in machinery to drain the wetlands and improve the flow of water and sediment through these wetlands.

The nyala on Buffelsdrift Private Game Reserve were found to be mainly browsers and made little use of grass during the study period. Browse contributed 87.8 percent to the annual diet, while grass contributed 12.2 percent. Only six species formed > 5 percent of the annual diet. Of these six only three species formed > 10 percent. They are the shrubs Acacia karroo, Pappea capensis and Grewia robusta. These were followed by the shrub Portulacaria afra, the dwarf shrub Zygophyllum lichtensteinianum and the grass Cynodon dactylon all contributing between 5 - 10 percent. There were definite seasonal dietary shifts with preference to different plant species. The shift takes place between the wet seasons (winter and spring) and the dry season (summer). Herbaceous species such as Cynodon dactylon and Erharta calycina were favoured in the winter/wet season. Shrubs such as P. capensis, P. afra and dwarf shrubs such as Limeum aethiopicum and Z. lichtensteinianum were favoured during the spring/wet and summer/dry seasons. Nyala habitat use in BPGR differed significantly from expected use when taking the relative area of habitats into consideration. However nyala did not display signififcantly different habitat preferences between seasons. Male and female nyala displayed differences in foraging behaviour at the plant form, plant species and habitat scale. Males preferred a greater proportion of shrubs and females a greater proportion of dwarf shrubs. Males preferred the shrubs Pappea capensis and Portulacaria afra the most and females preferred the dwarf shrubs Limeum aethiopicum and Zygophyllum lichtensteinianum the most. Plant species site availability varied significantly between the sexes, indicating that males and females selected different feeding paths. The difference in their feeding strategy appears to be related to the selection of plants that best satisfy the nutrient requirements of each sex. These findings are in agreement with the results from earlier studies on nyala sexual dimorphism. At the habitat scale females selected more for open dwarf shrubland and males more for densely vegetated habitats. This appears to be as a result of males attempting to maximize their foraging opportunities by selecting areas that offer food in greater quantities. Nyala in BPGR appear to co-exist with kudu and eland through spatial resource partitioning. This is suggested to be due to the influence of body size-gut size relationships on forage selectivity.

Thesis (MScAgric)--Stellenbosch University, 1932. / No Abstract Available

The study investigates the habitat preferences and ecological adaptations of the klipspringer in the Namaqualand and the southern Cape mountains. Klipspringer social organisation was found· to consist of a monogamously mated pair defending a territory which varies in size according to rainfall. The pair bond is very strong and role differentiation occurs, with the male spending more time than the female in anti-predator vigilance. Anatomical and physiological adaptations include a modified digit structure, kidneys with a high concentrating ability, and a unique pelage for insulation. Seasonal variations in activity patterns and feeding preferences are discussed in relation to weather conditions, metabolic requirements and possible plant defensive mechanisms. Klipspringers avoid competition with other small antelope by preferring more rocky terrain, and possible methods of food separation from dassies are suggested. The significance of all these factors in relation to the conservation and management of klipspringer populations is examined. / Dissertation (MSc)--University of Pretoria, 2011. / Zoology and Entomology / unrestricted

This study had as its origin the questioning by the researcher of the statements made by local and national politicians that the increase in tourist numbers visiting the Southern Cape was resulting in the creation of many new business ventures and work opportunities. This result was, however, not visible. In an attempt to find an answer to the above problem no pertinent information regarding the tourism industry, or evidence that local or regional government was actually involved in planning for the development of such an eventuality, could be found. In 1996 the National Government identified tourism as a major industry sector which could contribute towards economic development. The industry was expected to make a substantial contribution to the alleviation of poverty and to black economic empowerment. The government issued a White Paper on the Development and Promotion of Tourism in South Africa (1996) in order to produce key policy foundations for the development of the tourism industry in South Africa. Notwithstanding the fact that the central government had, since 1996, implemented various incentive schemes aimed at the tourism industry in general and towards small, medium and micro enterprises (SMME's) that operate in the tourism sector specifically, evidence of these incentive schemes reaching grass-root potential entrepreneurs has not been apparent. Furthermore, although purported to spread the economic benefits equitably among all members of the population, the local previously disadvantaged community did not seem to be benefiting from these policies at all. The above perceptions have, in turn, led to a number of questions listed and noted in Chapter one, and culminated in the research problem that was identified as follows: Can a strategy be formulated to stimulate SMME development and concurrent job creation among SMME's operating in the tourism sector of the Southern Cape and can such a strategy be depicted within a framework of a development model? The aim of the study was, therefore, to find a practical solution to the developmental requirements of tourism-related SMME's in order to stimulate job creation. The study was conducted in three sections: Section 1 consisted of an extensive literature survey in which it was determined that: <ul> <li>Tourism-related SMME's could make a positive contribution to local economic development.</li> <li>Although operating under conditions of globalisation, SMME's still had a future if they followed international best practices.</li> <li>Certain practices were considered international best practices.</li> <li>In order for SMME's to be successful, it becomes necessary to plan for the growth.</li> <li>There is a definitive role to be played by Government in this planning exercise.</li> <li>Although much work has already been done in the field of SMME development, very little has been done that addressed the tourism industry.</li></ul> Section 2 comprised an empirical study designed to test the opinions of tourism-related SMME's operating in the Southern Cape region. Factors which were considered to be essential to stimulate the growth of job opportunities were identified and compared with the theoretical requirements established in the previous section. Finally, Section 3 combined the findings of the previous two sections in an attempt to construct a framework depicting a model and strategy for the development of SMME's operating in the tourism sector of the Southern Cape. / Thesis (PHD)--University of Pretoria, 2007. / Tourism Management / unrestricted

Thesis (MScAgric)--Stellenbosch University, 1974. / ENGLISH ABSTRACT: no abstract available / AFRIKAANSE OPSOMMING: geen opsomming

Thesis (PhD (Geology))--University of Stellenbosch, 1997. / 1123 leaves printed on single pages, preliminary pages and numbered pages 1-286. Includes bibliography, list of figures and tables and explanation of abbreviations used. / Digitized at 600 dpi grayscale to pdf format (OCR), using a Bizhub 250 Konica Minolta Scanner. / ENGLISH ABSTRACT: This first comprehensive study of the petroleum geochemistry of the Bredasdorp Basin, and the adjacent Southern Outeniqua Basin, documents the characteristic large number of hydrocarbon shows and the four regionally distinctive marine source rocks. Detailed correlation of reservoired hydrocarbons with source rock bitumens shows that two source rocks have expelled oil in commercial quantities and two others have expelled commercial quantities of wet gas/condensate. In contrast with earlier studies which indicated that thermal 'gradualism' prevailed, this study indicates that the post-rift thermal history of the basin is very complex. Post-rift cool-down is punctuated by periods of rapidly increasing heat flow resulting in much of the maturation being localised in time. These periods of increased heating coincide with regional plate tectonism. The associated thermal uplift and downwarp effects govern the periods of trap formation and control the hydrocarbon migration direction. Migration distances of these hydrocarbons are described and show inter alia that oil migrates no more than -7-10 km but gas migrates regionally. Two regional episodes of meteoric water flushing reduce sandstone cementation in palaeo-highs forming potential reservoirs at specific times. The unusually low salinity of remnants of this water in some sandstones help characterise these two main migration conduits. A highly detailed hydrocarbon correlation scheme derived from gas, light oil and biomarker data has been established which differentiates products of the four active source rocks and helps characterise the oil-oil, oil-source and source-source pairs. It is evident from these correlations that two periods of migration and reservoiring occurred at 50-60 Ma and 0-10 Ma. As a result, source-reservoir plays which characterise certain areas of the basin as predominantly oil or gas prone can be described. These correlations also highlight areas where mixtures of hydrocarbons are common and where some of the early reservoired oil has been displaced to new locations, constituting potential new exploration plays. Source rocks for some of the analysed hydrocarbons have yet to be found and may not even have been drilled to date. One such source rock appears to be located in the Southern Outeniqua Basin, making that area a potential target for further exploration. This study resolved the common heritage of the source rocks and reservoir sandstones which form part of the Outeniqua petroleum system. The hydrocarbon volumes available to this system show that by world standards it is indeed significant. / AFRIKAANSE OPSOMMING: Die groot aantal koolwaterstof voorkomste asook vier streekskenmerkende mariene brongesteentes word in hierdie eerste omvattende studie van die petroleumgeochemie van die Bredasdorp-kom en die aangrensende Suidelike Outeniqua-kom saamgevat. Gedetaileerde korrelasies van die opgegaarde koolwaterstowwe met brongesteente bitumen, dui daarop dat twee van die vier geidentifiseerde brongesteentes olie in kommersiele hoeveelhede uitgeset het. Die ander twee het kommersiele hoeveelhede nat gas-kondensaat uitgeset. In teenstelling met vroeer studies wat daarop gedui het dat termale 'gradualisme' voorgekom het, dui hierdie studie daarop dat die na-riftermale geskiedenis van die kom baie meer kompleks is. Verskeie periodes van versnelde toename in hittevloei het voorgekom in die na-rifse verkoeling. Dit het daartoe gelei dat veroudering plaaslik binne 'n beperkte tydsverloop plaasvind. Hierdie periodes van hittetoename stem ooreen met die regionale plaattektoniek. Die geassosieerde termiese opheffing en afwaartse vervormingseffek, beheer die totstandkoming van opvanggebiede en die migrasierigting van die koolwaterstowwe. Migrasie-afstande van die koolwaterstowwe word bespreek en wys inter alia daarop dat olie nie verder as -7-10 km beweeg nie, maar gasmigrasie vind regionaal plaas. Twee kort episodes van meteoriese wateruitsetting, het sandsteensementasie in palaeohoogsliggende gebiede verminder wat potensiele reservoirs gevorm het op spesifieke tye. Die ongewone lae soutvlakte van oorblyfsels van die water in sekere sandstene help om die twee vernaamste migrasieroetes te kenmerk. 'n Hoogs omvattende koolwaterstof-korrelasieskema wat van gas, ligte olie en biomerkerdata verkry is, is opgestel. Die skema het onderskei tussen produkte van die vier aktiewe brongesteentes en help om die olie-olie, olie-bron en bron-bron pare te karakteriseer. Dit is duidelik van die korrelasies dat twee periodes van migrasie en opgaring plaasgevind het ongeveer teen -50-60 Ma en 0-10 Ma. Gevolglik kan bronreservoir omskrywings wat sekere dele van die kom karakteriseer as grotendeels olie of gas-ontvanklik beskryf word. Hierdie korrelasies beklemtoon ook areas waar mengsels van koolwaterstowwe algemeen voorkom en waar sekere van die vroeer opgegaarde olie verplaas is na nuwe lokaliteite, wat nuwe eksplorasieteikens daarstel. Brongesteentes vir sekere van die ge-analiseerde koolwaterstowwe, moet nog gevind word en is tot op hede nog nie raakgeboor nie. Een so 'n brongesteente kom voor in die Suidelike Outeniqua-kom, wat daardie area 'n potenslele teiken vir verdere eksplorasie maak. Die studie het die gesamentlike oorsprong van die brongesteente en reservoirsandsteen, wat deel is van die Outeniqua Petroleumsisteem, geidentifseer. Die koolwaterstofvolumes wat beskikbaar is vir die sisteem wys dat, gemeet teen wêreldstandaarde, dit wel beduidend is.

Thesis (MPhil)--University of Stellenbosch, 2007. / ENGLISH ABSTRACT: The Department of Water Affairs and Forestry (DWAF) maintains that its people-centred Participatory Forest Management (PFM) program contributes to rural poverty eradication through provision of employment, skills training and sharing of benefits of sustainable forest management. It also asserts that local people in the forested parts of South Africa interactively participate in designing systems and institutions that shape forest resources use and management and hence influence their livelihood strategies. Furthermore, the department asserts that the PFM program has taken off exceptionally well in the Southern Cape Forests than anywhere else in South Africa. This means that local people that inhabit the margins of the Southern Cape Forests benefit from the management of these forests. Consequently, this study set out to investigate the socio-economic contribution of the PFM intervention to the two forest-dwelling communities of Diepwalle and Covie within the Southern Cape Forests. The investigation employed an outcome based evaluation approach and was summative in nature. Data were gathered by conducting a 100% survey of the two communities and also through a workshop. Informal interactions and discussions as well as visual observations were used to verify data as the purpose of the study was to present an unbiased, multi-voiced account of the socio-economic contributions of the PFM intervention to the Diepwalle and Covie communities. The results of this research show that the outcomes of the PFM intervention have not been met in the two communities. It was found that the vast majority of the households in the two communities were not aware at the time of this study of the PFM program. There were at the time of the study no PFM-based incentives for local communities to actively participate in the sustainable use and management of the indigenous forests in the vicinity of Diepwalle and Covie. Almost all the householders in the two communities stressed that they do not benefit from the management of the indigenous forests. The existing management approach followed in the Southern Cape Forests does not appear to have more socio-economic and environmental gains than the conventional approach which excludes local people from the planning, designing, implementation and evaluation of institutions and systems which affect their physical environment. The study recommends, among others, regular evaluation of the PFM program to fast track its successful implementation and to ensure that the National Forests Act of 1998 that establishes PFM is fully implemented to realize the socio-economic benefits of forest conservation. / AFRIKAANSE OPSOMMING: Volgens die Departement Waterwese en Bosbou (DWB) dra die Mensgesentreerde Deelnemende Bosbestuursprogram (Participatory Forest Management of PFM) by tot die uitwissing van armoede op die platteland deur werkverskaffing, vaardigheidsopleiding en die deel in voordele van volhoubare bosbestuur. Die DWB beweer dat inwoners van die woudgebiede van Suid-Afrika deelneem aan die ontwerp van stelsels en instellings wat die gebruik en bestuur van woudhulpbronne vorm en daarom hulle broodwinningstrategieë beïnvloed. Verder voer die DWB aan dat die PFM-program aansienlik beter in die Suid-Kaapse Woude weggespring het as op enige ander plek in Suid-Afrika. Dit beteken dat plaaslike mense wat in buitewyke van die Suid-Kaapse Woude woon, voordeel trek uit die bestuur van die woude. Hierdie studie is onderneem om die sosio-ekonomiese bydrae van die PFM-intervensie tot twee woudgemeenskappe, Diepwalle en Covie, in die Suid-Kaapse Woude te ondersoek. Die ondersoek het 'n uitkomsgebaseerde evaluasiebenadering gevolg en was summatief van aard. Gegewens is deur 'n 100%-opname van die gemeenskappe en tydens 'n werkswinkel versamel. Informele interaksies en besprekings asook visuele waarnemings is gebruik om gegewens te verifieer, omdat die doel van die studie was om 'n onbevooroordeelde, veelstemmige verslag van die sosio-ekonomiese bydraes van die PFM-intervensie tot bogenoemde gemeenskappe daar te stel. Die navorsingsresultate toon dat die uitkomste van die PFM-intervensie nie in die twee gemeenskappe bereik is nie. Die oorgrote meerderheid huishoudings was ten tye van die studie onbewus van die program en daar was geen PFM-gebaseerde aansporings vir plaaslike gemeenskappe om aktief aan die volhoubare gebruik en bestuur van die inheemse woude in die Diepwalle- en Covie-omgewing deel te neem nie. Bykans al die huishouers het benadruk dat hulle geen voordeel uit die bestuur van die inheemse woude trek nie. Geen getuienis is gevind wat bevestig dat bekwaamhede bevorder is as gevolg van die PFM-program nie. Alle deelnemers ontken vaardigheidsontwikkeling wat deur die PFM geinisieer is. Dit blyk dat die bestaande bestuursbenadering wat in die Suid-Kaapse Woude gevolg word, nie meer sosio-ekonomiese en omgewingsvoordele lewer nie as die konvensionele benadering wat plaaslike mense uitsluit van die beplanning, ontwerp, implementering en evaluasie van instellings en stelsels wat hulle fisiese omgewing beïnvloed. Die studie beveel onder andere gereelde evaluasie van die PFM-program aan om die suksesvolle implementering daarvan te bespoedig en te verseker dat die Wet op Nasionale Woude van 1998 volledig geïmplementeer word sodat die sosio-ekonomiese voordele van woudbewaring kan realiseer.

Water temperature is a critical factor affecting the abundance and richness of freshwater stream aquatic macroinvertebrate communities. Variable seasonal river temperature patterns are a critical factor in maintaining temporal segregation in aquatic invertebrate communities, allowing for resource partitioning and preventing competitive exclusions, while spatial differences in water temperatures permit zonation of species. This research investigated whether the degree of predictability in a stream’s water temperature profile may provide some indication of the degree of structure and functional predictability of macroinvertebrate communities. Quarterly aquatic macroinvertebrate sampling over a single year along the longitudinal axes of two river systems, Keurbooms River in the southern Cape, and the Kowie River in the Eastern Cape, were undertaken as the core component of this research. The two river systems shared similar ecoregions and profile zones, however were expected to differ in their thermal variability, based on the hydrological index and flow regimes for their respective quaternary catchments. Hourly water temperature data were collected at each sampling site from data loggers installed at five paired sites on each stream system. The aquatic biotopes sampled were in close proximity to the loggers. Multivariate analysis techniques were performed on the macroinvertebrate and water temperature data. Macroinvertebrate taxon richness was greater on the perennial Keurbooms than the non-perennial Kowie River where, on a seasonal basis, taxon richness increased from winter to autumn on both systems. Macroinvertebrate species turnover throughout the seasons was higher for sites having lower water temperature predictability values than sites with higher predictability values. This trend was more apparent on the Keurbooms with a less variable flow regime. Temporal species turnover differed between sites and streams, where reduced seasonal flows transformed the more dominant aquatic biotopes from stones-in-current into standing pools. Findings included aquatic macroinvertebrates responding typically in a predictable manner to changing conditions in their environment, where water temperature and flow varied. The findings of this research demonstrate that macroinvertebrate taxa do respond in a predictable manner to changes in their environment. This was particularly evident in relation to variability in water temperature and flow. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2011.