M.Comm. / Tourism development has the potential to have significant impacts on the environment. To ensure that tourism is sustainable into the future there needs to be a balance between tourism development and environmental concerns. The move towards sustainable tourism development requires that there be a closer co-operation among four very different stakeholders. These stakeholders include the tourism business, the environment, the host population, and the tourist. The main purpose of this research was to identify, at the Kruger National Park, the levels of awareness and understanding of the concept of sustainable tourism development amongst the four stakeholders. Also are identified are their viewpoints on how to achieve sustainable tourism development, their efforts to ensure it, and the role that marketing can play to ensure sustainable tourism development. This study, being exploratory in nature, made use of in-depth interviews (a qualitative technique) to gather the needed primary data. In-depth interviews were conducted at the Kruger National Park with representatives from the various stakeholder groups. Observation of physical aspects and people behaviours were used to supplement the in-depth interviews. Overall, it was found that most groups are aware of the need to balance environmental concerns with tourism development. Tourists however, are less aware of concepts such as sustainable tourism development than the other stakeholders It is was found that in some cases there is a lack of communication between some of the various stakeholders on various issues. The respondents in this case thought that the other stakeholders might disagree with them on certain issues when in fact their ideas were similar. Strong emphasis is being placed on developing relationships with the local communities and involving them in the decisions that affect them. It is realised that these local communities can have a major impact on the larger ecosystem around the park and could eventually destroy tourism if they are ignored. Local communities need to benefit from the existence of the park. Overall, the respondents do not have a clear understanding of what marketing entails or the contribution it can make to ensuring sustainable tourism development. Marketing is viewed by most as simply selling bed-nights. The marketing function at the Kruger National Park is ineffective and not given the support or attention it requires to operate effectively. For marketing to play a significant role at the park serious attention needs to be given to redesigning the entire marketing department. It is absolutely essential that tourism be developed in an environmentally sustainable manner to ensure the industry's future existence. Marketing of the park needs to be done in a manner that will not lead to the environment being exploited. Marketing, apart from simply selling the park, can play an important role in developing a conservation ethic amongst tourists and potential tourists. This educational role extends to the youth of the country who are the future tourists, tourism developers and conservationists.

Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv and Cons Biol) / Knowledge of global reptile ecology is limited and there remains much to understand in terms of detailed reptile species information, including that of their distributions. In South Africa, despite being one of SANParks best-studied reserves, surprisingly little is known about the distributions and spatial ecology of reptiles within Kruger National Park (KNP). Management within KNP follows a strategic adaptive management strategy which monitors the statuses of animals using species or group specific indicators. Indicators are given predetermined upper and lower ranges of acceptable fluctuation before actions are taken. These ranges are referred to as thresholds of potential concern (TPCs), and for reptiles these are based on changes to their distributions across the landscape of KNP. An apparent lack of high-quality reptile distribution data inhibits the effective monitoring of the statuses of these animals within KNP, which in turn limits management and conservation options. In this study, I use several methods to quantify available reptile occurrence data which formed the foundations for predicting the distributions of these species across KNP by means of species distribution modelling, with a view to gaining novel insight into reptile assemblage structure across the landscape of KNP.

Woody vegetation patches play an important role in the savanna ecosystem. They provide habitat for animal species and are important for some ecological processes such as. However, the coexistence of trees and grass depend on several factors such as fire, elephant, rainfall and soil type. In Kruger National Park, factors that affect the survival of woody vegetation patches are elephants and fire. The loss of woody vegetation patches leads to fragmentation of the landscape. The main aim of this study was to determine the relative difference in the composition, complexity and configuration of woody vegetation patches in and out of the enclosures, and to evaluate the changes in number and size, shape and connectivity of woody vegetation patches between basalt and granite soils over a period of time. There was no linear relationship between composition and complexity and mean nearest neighbour with year, whilst edge density appeared to have a linear relationship with year. Based on edge density results, the results suggested that there was increase in landscape fragmentation in Kruger National Park. The increase in woody patch fragmentation can be attributed to the increase in elephant population, as well as fire frequency and intensity. There was no difference in the composition, complexity and configuration between the inside of the enclosure and the outside. The results show that there is difference between the basalt (Makhohlola) and granite (Nwashitshumbe) region. The results indicated that Makhohlola seems to be highly fragmented than the Nwashitshumbe. The basalt region is situated on rich soils and receives more rainfall than the granite region; hence thus plant growth is greater than that on granite region. High plant growth is associated with high fire frequency and intensity, which result high influence on woody vegetation. The basalt region is dominated with palatable vegetation, as result; the basalt region is associated with large number of herbivores. Due, to high number of herbivores, and high frequency and intensity, the basalt region may be highly fragmented. The change in woody vegetation patches over time, on both basalt and granite region was associated with the interaction between the increase in elephant density, and fire frequency and (or) intensity.

African savannas have experienced considerable woody encroachment over the last century, presenting an increasing problem from both ecological and socioeconomic viewpoints. Despite decades of work by savanna ecologists, the reasons for woody encroachment remain unclear. A major barrier to understanding the causes is the difficulty of disentangling the effects of broader-scale environmental changes, such as climate change and associated increases in atmospheric CO2, from localised effects such as fire. In this thesis I examine the effects of sixty years of experimental burning on the characteristics of woody vegetation in two climatically distinct African savannas, a wet and a dry savanna, to examine how long-term burning interacts with other potential drivers of woody encroachment. I examine tree abundance, woody cover, tree structure, diversity and community composition under four different fire regimes: annual, biennial, triennial and fire exclusion. Differences between sites and plots subject to different burning regimes are compared along with changes in these differences through time. Additionally, variation in the densities of Acacia, Combretum, Terminalia and Dichrostachys species were examined to establish how dominant species, particularly those responsible for encroachment, are affected by fire. Overall, I found that the effects of fire depend on savanna type. Fire lowered tree abundance and woody cover much more in the wet savanna than in the dry savanna. However, the maximal height of trees was much more constrained by increased fire frequency in the dry savanna than in the wet savanna. Woody encroachment occurred across both savanna types during the sixty year time period, but was much more rapid at the wet savanna. Additionally, encroaching species of Dichrostachys cinerea and Terminalia sericea in the wet savanna were shown to be more difficult to manage using fire. Overall as fire regimes were kept constant over the last sixty years, yet woody encroachment occurred across all fire treatments, it is most likely that an external driver is responsible. Rainfall change in both areas was minimal over the duration of the study, thus increased atmospheric CO2 would appear to be the most likely cause of woody encroachment. However, the magnitude and characteristics of woody encroachment are strongly mediated by fire and rainfall. Wet savannas would appear to be much more vulnerable to woody encroachment and existing management strategies are likely to become increasingly ineffective at keeping woody cover below potential maximum levels. Overall this thesis demonstrates that the effects of fire on woody vegetation in savannas vary depending on regional differences in rainfall and that processes of woody encroachment differ depending on savanna type.

Student Number : 0311004X - MA dissertation - School of Geography, Archeology and Environmental Studies - Faculty of Humanities / This research focuses on the accommodation development in the Kruger National Park of South Africa. It makes a comparison of the accommodation that was there from 1980 to 1994 and the period after. The main objective is to analyze changes in accommodation and other activities in the context of the changing tourism policies and tourist tastes, a question which tourism literature to date has not paid much attention to. This was done using the concept of a tourism product with accommodation being the product that changes on the basis of supply and demand. Major sources that were used are policy documents, parks annual reports and archival resources and tourism and travel magazines and brochures.

The Dunning-Kruger Effect is a metacognitive phenomenon in which individuals who perform poorly on a task believe they performed well, whereas individuals who performed very well believe their performance was only average. To date, this effect has only been investigated in the context of performance on mathematical, logical, or lexical tasks, but has yet to be explored for its generalizability in episodic memory task performance. We used a novel method to elicit the Dunning-Kruger Effect via a memory test of item and source recognition confidence. Participants studied 4 lists of words and were asked to make a simple decision about the words (source memory, i.e. Is it manmade? Is it alive?). They were later tested on their episodic memory and source memory for the words using a five-point recognition confidence scale, while electroencephalography (EEG) was recorded. After the test, participants were asked to estimate the percentile in which they performed compared to other students. Participants were separated into four quartiles based on their performance accuracy. Results showed that participants in all four groups estimated the same percentile for their performance. Participants in the bottom 25th percentile overestimated their percentile the most, while participants in the top 75th percentile slightly under-estimated their percentile, exhibiting the DKE and extending its phenomenon into studies of episodic memory. Groups were then re-categorized into participants that over-estimated, correctly estimated, and under-estimated their percentile estimate. Over-estimators responded significantly faster than under-estimators when estimating themselves as in the top percentile and they responded slower when evaluating themselves as in the bottom percentile. EEG first revealed generic scalp-wide differences within-subjects for all memory judgments as compared to all self-estimates of metacognition, indicating an effective sensitivity to task differences. More specific differences in late parietal sites were evident between high percentile estimates and low percentile estimates. Between-group differences were evident between over-estimators and under-estimators when collapsing across all Dunning-Kruger responses, which revealed a larger late parietal component (LPC) associated with recollection-based processing in under-estimators compared to those of over-estimators when assessing their memory judgements. These findings suggest that over- and under-estimators use differing cognitive strategies when assessing their performance and that under-estimators use less recollection when remembering episodic items, thereby revealing that episodic memory processes are playing a contributory role in the metacognitive judgments of illusory superiority that are characterized by the Dunning-Kruger Effect.

As the atmosphere warms, precipitation events are likely to become less frequent but more intense. While extensive efforts have been made to understand how changes in mean annual precipitation will affect plant growth, particularly in semi-arid systems, relatively little is known about how increasing precipitation intensity will affect plant growth and hydrologic cycles. A recent study by Kulmatiski and Beard (2013) found that small increases in precipitation intensity increased woody plant growth and decreased grass growth in a three-year experiment in a savanna system, Kruger National Park. Here we report results from the following two years of that experiment. Due to naturally large precipitation events, plant available water was similar between treatment and control plots in the last two years of the study allowing us to test woody plant and grass responses to treatment removal (i.e., legacy effects). Treatment effects on grass and tree growth disappeared within months of treatment removal. However, due to a legacy effect of treatments, tree mass was greater in treatment that control plots at the end of the experiment. Measurements of root recruitment and hydrological tracer uptake, but not root volume helped explain plant growth responses to treatments. Results suggest that savanna plants respond rapidly to changes in precipitation intensity, but because of legacy effects, occasional increases in precipitation intensity can result in long-term shrub encroachment.

Thesis (M.Com. (Tourism))--North-West University, Potchefstroom Campus, 2009.

Thesis. / Includes bibliographical references.

A pilot study was launched in 1993 to determine the movements of crocodiles in the Olifants River in Kruger National Park (KNP). This turned into a research project in 1994 and lasted for five years until 1998. The objectives of the study were to determine movement, study nesting preferences and to investigate the possible effects of metal pollution in crocodiles. The movements of the total population were studied by doing regular foot counts, four times per annum. The basis for movement was found on the principle that a change in numbers signified movement. Foot counts were supported by spot counts at three different locations in the study area at 14 day intervals. The foot counts were done along a pre-determined route, followed with every count, and this resulted in data indicating a definite change in numbers at certain times of the year. A comparison was made between the movements of crocodiles in large bodies of open water (lakes & estuaries), a so called "closed" system and the Olifants River or "open" system. There was a movement of the population during August of every year, followed by another one in December/Jan and yet another in May. The largest movement, in August, co-coincided with the prelude to mating and ultimately nesting. The spot counts indicated that there was a smaller and probably localized movement during May and December of each year. This corresponds to nesting behaviour and the flood status of the river. All indications are that major movements took place during periods of high flow and thus during the rain season (Sept - Feb). A major flood was experienced during February 1996 which changed the geomorphology of the river. In addition to the foot and spot counts, eleven large adult crocodiles were fitted with radio transmitters to monitor their movements for a period of one year (1997 -1998). The results indicated that movements over large distances occurred. The longest distance covered was in access of 36 km. Some individuals returned to the location of origin, thus completing a round trip from their point of departure. The majority of crocodiles fitted with transmitters left the protection of KNP, spent time in neighbouring Mozambique and some returned to Kruger after an average period of three months. Indications are that there is a lack of territorial dominance amongst large individuals at certain times of the year, allowing for less restricted movement up and down the river. A difference was found between the movements of crocodiles in the Olifants River as opposed to a large body of water eg. a lake or estuary. The second objective was to collect data on nesting preference, nest content and egg dimensions. A total of seven parameters were measured including slope, distance to water, height above water, soil type, vegetation, exposure to direct sunlight and the size of the female. Besides these parameters, a comparison was made between egg size, mass and length and the correlation with female size. The results indicated that egg mass and length increased with an increase in female size. The average clutch size was 34 eggs. A difference was found between two nesting years (1997 and 1998) with the larger females nesting in 1998 (egg mass 122.7g). A higher rainfall was measured for 1998, leading to the conclusion that smaller females nested during dryer years. The larger females, because of physical abilities, dug deeper nests ,36 cm in 1998 as opposed to 25 cm in 1997. No difference was found between nesting habits elsewhere in Africa and that in the Olifants River. Twelve individuals of varying sizes ranging from 1.4 m to 4.1 m, were collected from three locations and various tissue samples were analysed for metal content. Tissue from muscle, liver, kidney and fat were analysed for Al, Cu, Cr, Fe, Mn, Ni, Pb, Section ranger and Zn. As this was the first data of its kind to be collected, no meaningful conclusions could be reached, except to offer the data as base line data and for future comparisons. There was however a correlation between Fe concentration in muscle tissue and body size, total length (TL). An increase in TL resulted in an increase in Fe concentration. The opposite were found with Fe in fat tissue. Smaller crocodiles (TL) had higher concentrations of Fe in their fat tissues. Besides the large amount of base line data that resulted from this study, it also highlighted the shortage of knowledge on this species, particularly in Kruger, to enable us to manage and protect them successfully. / Thesis (M.Sc.)-University of Natal, Pietermaritzburg, 1999.