71 |
The recent shifts in tourism in iSimangaliso Wetland Park.Govender, Nerosha. January 2013 (has links)
Tourism is the fastest growing economic industry and has become one of the leading sources
of growth and development in South Africa. However, tourism is in a constant state of flux
requiring continuous research to document and analyse these shifting trends. Since 1999, the
iSimangaliso Wetland Park (South Africa’s first World Heritage Site) has been using
ecotourism as part of its development and conservation strategy. This has resulted in the shift
in tourism from what used to be a fishing destination prior 1999 to its current form as a
premier ecotourism destination. The aim is to analyse and document the shift from mass
tourism to ecotourism in iSimangaliso Wetland Park, using the Eastern Shores as a case
study. Through modernism and postmodernism tourism discourse, this dissertation analyses
visitor characteristics, behaviour and perceptions of both tourists and tourism businesses over
time in an attempt to describe and explain the tourism shift on the Eastern Shores. This
research reveals that there has been a distinct tourism shift in the Park from the ‘mass’
fishermen created by the Fordist mode of mass and standardised production to the more
ecologically inclined ‘niche’ tourist where the de-differentiation of postmodernism has
created diversified forms of tourists and tourism products. Within these broad classifications,
this research has discovered the existence of more nuanced tourist profiles. Mass tourists
range from the ‘sun, sea, sand, sex and sangria’ tourist to fishermen. Ecotourists on the other
hand range from the casual or mainstream ecotourist who practices a shallow form of
ecotourism to the dedicated ecotourist whose activities promote conservation and sustainable
development allowing for a deeper form of ecotourism. Further, on the Eastern Shores,
domestic coastal ‘mass tourists’ have also become more ecologically inclined. Previously
these tourists would come for one activity, that is, to relax on the beach or fish. At present,
the majority of these tourists now also pursue nature based activities, adventure tourism
and/or sightseeing. The changes in the tourists visiting the Eastern Shores are representative
of the global shifts in tourism that are currently taking place. Tourism is constantly evolving
as part of global capitalism and will continue to shape tourism in iSimangaliso Wetland Park. / Thesis (M.Soc.Sc.)-University of KwaZulu-Natal, Durban, 2013.
|
72 |
The dynamics of nano- and microplankton in the St. Lucia estuarine lake system, KwaZulu-Natal.Fru Azinwi, Nche-Fambo. 10 September 2014 (has links)
St. Lucia estuarine lake system has a history of episodic droughts and floods leading to a high variability
in physico-chemical characteristics which may influence the community structure of nano- and
microplankton that are the main primary energy synthesisers in aquatic systems. Originally, the St. Lucia
estuary and the Mfolozi River shared the same mouth with the Mfolozi River acting as the main source of
fresh water to the system and as stabiliser of the common inlet. Due to prolonged mouth closure from
2001-2012 and high evaporation rates, severe extended droughts and high salinities were experienced in
2001-2012.This project aimed to characterise community composition and biomass of nano-and
microplankton (autotrophic and heterotrophic) under the varying and extreme physico-chemical
conditions in order to characterize the energy basis of the planktonic food web in St. Lucia. Its main
objectives were to compare and add onto Johnson’s (1977) list of phytoplankton taxa in the system, to
estimate the biomass (carbon) of nano- and microplankton from cell counts and biovolume measurements,
and lastly to understand and establish trends in the change in community structure of these organisms
with the varying physico-chemical characteristics.
Nano- and microplankton samples were collected monthly from October 2010 to September 2011 at three
different sites: Lister’s Point, Charters Creek and the mouth representing the lakes and estuary Channel.
Chlorophyll a and physico-chemical parameters were also measured in situ during collection. In the lab,
samples were settled using the Utermöhl method and species were identified to at least genus level,
counted and cell measurements taken under an inverted microscope for biovolume calculations and
biomass thereof. Abundance in cells per liter and biomass (carbon) in pg/L was then analyzed from the
counts.
The nano-and microplankton groups recorded in the system were cyanobacteria, chlorophytes,
cryptophytes, dinoflagellates, ciliates and diatoms. Seventy eight phytoplankton taxa were identified
composed of 56 diatoms, eight green algae, one cryptophyte, seven cyanobacteria and six dinoflagellate
taxa. Nineteen ciliate taxa were also found. Only 12 of the diatom taxa identified in this study were listed
by Johnson (1977), none of the taxa in the other phytoplankton groups was listed by Johnson (1977). The
Johnson (1977) study conducted in the system from 1975-1977 listed the phytoplankton taxa occurring at
that time. There was no significant difference in the community composition, biovolume and biomass
between seasons hence no seasonal trend however, there were significant differences in the nano- and
microplankton community composition, biovolume and biomass at the three different sites of the system.
Cyanobacteria were the main taxa in the northern embayments dominating in abundance, biovolume and
biomass (biological variables), green algae and cryptophytes dominated in abundance, biovolume and
biomass in the Channels while in South Lake, green algae dominated in abundance but diatoms
dominated in biovolume and biomass. Ciliate biological variables were higher in the northern regions
than in the other parts of the estuary. The absence or limited grazing pressure of ciliate predators in the
northern region due to their inability to cope with the extreme salinities compared to the other parts of the
system explains why the northern embayments had the highest abundance, biovolume and biomass of
ciliates. Ciliates and heterotrophic dinoflagellates were the heterotrophs in this study.
Autotrophic:heterotrophic biomass ratio was lowest in the northern regions as heterotrophs had a higher
biomass there. This ratio was higher in the South Lake and the Channel. The lack of stratification and
generally high turbidity in the system made the system unfavourable for dinoflagellate growth. The higher
presence of ciliate predators in the South Lake and Channel probably accounts for the low heterotrophic
biomass hence high autotrophic:heterotrophic biomass ratio in South Lake and the Channel.
Nutrients were not limiting during this study and salinity was the main physico-chemical characteristic
accounting for the differences in nano- and microplankton biological variables. The Cyanothece bloom in
the northern region was primarily due to high salinities (>150) which also indicated unfavourable
conditions for other plankton types. The high diatom biomass in the southern lake was due to low
salinities (<28) which favoured their growth, whereas chlorophytes and cryptophytes dominated in the
Channel mainly due to low turbidity (median of 11.4NTU) and fresh water input from the Mfolozi
lowering salinities (<5).
The South Lake and Channel thus had the highest available energy for higher trophic level organism since
1) diatoms and green algae are the most favoured food source for phytoplankton grazers while the
cyanobacteria though most abundant are the least favoured food source leaving the northern lake with
smaller energy source for higher trophic level organisms and 2) The low autotrophic:heterotrophic
biomass ratio in the northern region leaves the region with a lower net carbon biomass than the other parts
of the system with a higher autotrophic: heterotrophic biomass. / Thesis (M.Sc.)-University of KwaZulu-Natal, Durban, 2013.
|
73 |
Dietary dynamics of two key fish species in the St Lucia estuarine system, South Africa.Dyer, David Clifford. January 2014 (has links)
Among the 155 species of fish recorded so far in the St Lucia estuarine lake, Oreochromis
mossambicus and Ambassis ambassis are the two most prominent. Although originally
endemic to southern Africa, O. mossambicus is now one of the most widely distributed exotic
fish species worldwide. Together with A. ambassis, they have become the dominant fish
species in the St Lucia estuarine lake since the closure of the mouth in 2002 and are,
therefore, a crucial component of the food webs throughout the system. After a decade
dominated by dry and hypersaline conditions, the St Lucia system has changed dramatically
in terms of prevailing environmental conditions, as a result of higher than average rainfall at
the end of 2011 and the onset of a new wet phase at the start of 2012. In response, A.
ambassis, which prefers lower salinity regimes, has expanded its distribution range
throughout the estuarine lake. Stable δ¹⁵N and δ¹³C isotope analysis was used in conjunction
with gut content analysis to elucidate the diet of these species at sampling localities spanning
the geographical range of the system and determine whether these species shift their diet in
response to environmental or climatic shifts. From both studies it is evident that from a
temporal and spatial scale these two species adopt similar, yet very different, dietary tactics.
Oreochromis mossambicus was shown to adopt a generalist feeding strategy,
opportunistically feeding on dietary items that are available thus allowing this species to alter
its diet according to the environment that it inhabits. Trophic positioning of this species was
found to be controlled by salinity in St Lucia as dietary composition differed greatly between
sites. In contrast, Ambassis ambassis displayed a more specialist dietary composition, feeding
predominantly on zooplankton. However, this species also opportunistically supplements its
diet with additional sources when available. Trophic position of A. ambassis was higher in
the dry season owing to the increased productivity of the system during the wet season. The
success and dominance of both species in the St Lucia system can therefore be attributed to
their dietary strategies. Under extreme environmental conditions, O. mossambicus has the
added advantage of its wide tolerance of different environmental conditions, particularly
salinity, thus allowing it to proliferate. / M.Sc. University of KwaZulu-Natal, Durban 2014.
|
74 |
Traditionsfirande i förskolan : En didaktisk studie om kulturell mångfald / Celebrating traditions at preeschool : Teaching cultural diversityBaer, Susanna, Kjerrulf, Catharina January 2018 (has links)
Syftet med studien är att undersöka förskollärarstudenters uppfattning om och tidigare erfarenheter av att arbeta med olika kulturella och religiösa traditioner i förskolan. Examensarbetet utgår från ett interkulturellt perspektiv och behandlar vilka traditioner som synliggörs i förskolan, hur firandet går till och informanternas uppfattning om tradition som fenomen och resurs för kulturellt lärande. I förhållande till den senast reviderade läroplanen (Skolverket, 2018) åskådliggörs förskolans uppdrag angående kultur och mångfald. För att informanterna skulle ges möjlighet till ett fritt berättande användes (sju) semistrukturerade intervjuer som datainsamlingsmetod. Analysen av de nedtecknade intervjuerna utgick från syftet och de centrala begreppen interkulturell sensibilitet, kultur och mångfald. Resultatet visar att informanterna har erfarenheter av ett traditionsfirande som anpassas till de kulturer som finns representerade i den aktuella barngruppen. Traditionsfirandet kännetecknas av frivillighet, formbarhet och nytänkande. Vilka traditioner som firas och hur detta sker i praktiken varierar, och styrs av pedagogernas erfarenheter, intresse och kunskap. Det religiösa och icke-religiösa traditionsfirandet bidrar till interkulturella möten och firandet kan följaktligen ha en sammanlänkande funktion mellan barn med olika kulturer. Det framkommer även att okunskap kring ämnen som religion och historia är en orsak till att pedagogerna undviker att samtala om bakgrunden till de traditioner som firas. Informanternas uppfattning om genomförandet av religiösa traditioner överensstämmer med hur begreppet interkulturell sensibilitet definieras i tidigare forskning, som tolerans mot andras och insikt om den egna kulturens plats bland alla övriga i en kulturell mångfald. Studiens slutsats är att det saknas kunskap inom områden som berör kultur, traditioner och religion. Okunskapen kan vara en anledning till att pedagoger undviker att samtala om dessa ämnen med barn och föräldrar, eftersom området berör högst personliga frågor, vilka kan uppfattas som integritetskränkande. Det visar sig att pedagogernas kontakt med föräldrarna är oumbärlig för hur de ska kunna förverkliga sitt uppdrag angående synliggörandet av och lärandet om olika kulturer och traditioner i förskolan.
|
75 |
El cuerpo que se repite: el cuerpo en la narrativa nómade de Mayra Santos-Febres, Ena Lucía Portela y Ángela Hernández NúñezJanuary 2015 (has links)
abstract: ABSTRACT
This dissertation focuses on the narrative fiction of three women writers from the Spanish-speaking Caribbean who have been publishing since the nineteen-nineties. The short stories and novels of Mayra Santos-Febres from Puerto Rico, Ena Lucía Portela from Cuba, and Ángela Hernández Núñez from the Dominican Republic, have been analyzed within a theoretical framework composed of Antonio Benítez Rojo and Édouard Glissant’s ideas about Caribbean cultural expression and Rosi Braidotti and Elizabeth Groz’s writings about the body in current feminist studies. In doing so this study has sought to demonstrate how contemporary Caribbean women writers employ a nomadic aesthetic that opens up a multitude of possibilities of meanings for bodies, and by extension subjects, that have traditionally been obscured by the Cartesian binary that separates the body from the mind. In spite of being culturally, sexually and racially specific bodies, the bodies that appear in the work of Santos-Febres, Portela and Hernández Núñez are in constant movement and metamorphoses. Therefore, special attention is paid to the ways in which these bodies are open to social completion making them favorable locations for negotiations of power, resistance to normative identities, and the production of new systems of knowledge that not only recognize the importance of the body but also acknowledge the value of the affects.
RESUMEN
Esta tesis trata la narrativa de tres escritoras del Caribe hispano-hablante que comenzaron a publicar a partir de los años noventa. Los cuentos y novelas de Mayra Santos-Febres de Puerto Rico, Ena Lucía Portela de Cuba, y Ángela Hernández Núñez de la República Dominicana, han sido analizados a través de un marco teórico compuesto de las ideas sobre la expresión cultural caribeña de Antonio Benítez Rojo y Édouard Glissant y los escritos sobre el cuerpo en los estudios feministas actuales de Rosi Braidotti y Elizabeth Grosz. Al hacerlo, este estudio se ha propuesto demostrar cómo las escritoras caribeñas contemporáneas emplean una estética nómade que abre las posibilidades de significado para los cuerpos y sujetos que han sido ocultados tras el binario cartesiano que separa el cuerpo de la mente. A pesar de ser cuerpos cultural, sexual y racialmente específicos, los cuerpos que aparecen en los textos de Santos-Febres, Portela y Hernández Núñez están en continuo movimiento y metamorfosis. Por lo tanto, se presta especial atención a los modos en los cuales estos cuerpos permanecen abiertos hacia la terminación social lo que los hace espacios propicios para las negociaciones de poder, la resistencia a las identidades normativas y la producción de nuevos sistemas epistemológicos que no solo reconocen la importancia del cuerpo sino que también el valor de los afectos. / Dissertation/Thesis / Doctoral Dissertation Spanish 2015
|
76 |
Otredad y locura en los personajes femeninos de Amor, curiosidad,prozac y dudas de Lucía Etxebarria.Nyman, Freja Lina January 2022 (has links)
Este trabajo de investigación trata de comprobar la hipótesis de que la locura en las protagonistas de Amor, curiosidad, prozac y dudas (1997) en la obra de Etxebarria es una consecuencia del pa-triarcado. Se ha elegido la teoría del otro de Simone de Beauvoir como base del análisis. Por eso, seha revisado el concepto de la locura en las mujeres, se ha aplicado el concepto a las protagonistas yse ha analizado su locura a través de la teoría del otro en El segundo sexo (1949). A través de unmétodo hermenéutico se ha podido mostrar que la locura en las protagonistas es resultado de actosde hombres, pues no encajan en el rol femenino y por eso pueden romper con el rol del otro.
|
77 |
Conservation of the great white pelican (Pelecanus onocrotalus) and the pink-backed pelican (P. rufescens) in south eastern Africa.January 2006 (has links)
Of the seven pelican species found world wide, only the Great White Pelican (Pelecanus onocrotalus) and the Pink-backed Pelican (P. rufescens) are found in Africa. The KwaZulu-Natal province of South Africa supports only one breeding site for each of these species, and both sites represent the southern most breeding colonies for the two species in the eastern region of Africa. These nesting sites fall within the Greater St Lucia Wetland Park, and are afforded a degree of protection, but the same is not true for their foraging and dispersal ranges, and this is a cause for concern. Considerable amounts of data have been collected relating to the status, distribution and breeding efforts of these two species in north eastern KwaZulu-Natal. These data have been collected in a variety of ways by a large number of people. Part of this work represents an attempt to collate and summarise these data to produce an estimation of the status, distribution and breeding success of these species, and to evaluate any trends in their demography. For this south eastern region of Africa I estimated the population for the Great White Pelican to range between 6000 and 9000 individuals, and the Pink-backed Pelican to range between 600 and 900 individuals. Pelicans are highly mobile birds, and this allows them to move considerable distances when they forage, disperse or migrate. They are also long-lived birds with few natural predators. The two pelican species in south eastern Africa have been poorly studied and little is known about their movements, population dynamics and causes of mortality. Habitat change poses a potential threat to pelicans in north eastern KwaZulu-Natal, and habitat loss could drive these species out this region to areas north of South Africa. Much of this north eastern region of KwaZulu-Natal is under threat, mainly through the actions of man. Many areas are naturally unsuitable for pelican foraging, while others are vital to the survival of both species. This study includes an attempt to assess the movements of these two species in south eastern Africa, and to assess the relative importance and condition of the potential pelican habitat in the north eastern KwaZulu-Natal region, focusing particularly on Lake St Lucia and the Pongolo River floodplain. All this is necessary to produce a baseline from which long term predictions of potential pelican species survival can be made. In the absence of documented life tables and environmental variability data, a range of parameters was modelled to generate population viability analyses to simulate possible scenarios. These extinction models show the outcomes of both the deterministic and the stochastic processes. An attempt was also made to identify the factors that impact most severely on the persistence of these two species. The models were most sensitive to variation in survivorship in the first year of life and to the frequency of catastrophes. Changes in these parameters had the greatest effect on extinction risk. In January 2004 Lake St Lucia was reduced to a fraction of its normal capacity as a result of a severe drought in this region of KwaZulu-Natal. After rains in the area the lake level rose and then fluctuated considerably over the next 24 months. During this time the mouth of the estuary into the sea was closed. Great White Pelican numbers and lake levels were monitored throughout this period. This part of the study relates the changes in population numbers to the lake conditions, and highlights the importance of the lake to this avian species. It uses lake levels as a proxy for the conditions of wetlands in the Lake St Lucia region. It also addresses the implications of these relationships to the management strategy of the lake and the conservation of some avifauna. To identify conservation concerns for the Great White and Pink-backed Pelicans it was necessary to generate these baseline estimations. Although much of this information is uncertain for these two species, an attempt has been made here to predict the persistence of these species in north eastern KwaZulu-Natal and to highlight the conservation issues related to their future. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2006
|
78 |
Diversity of bivalve molluscs within the St Lucia estuarine system, with emphasis on the ecophysiology of Solen cylindraceus and Brachidontes virgiliae.Nel, Holly Astrid. 17 June 2014 (has links)
The St Lucia estuarine system, Africa’s largest estuarine lake, is characterised by cyclic changes from
hypersaline to oligo/mesohaline conditions in response to alternations between drought and wetter
than average years. In addition, St Lucia also experiences stochastic disturbances, such as flooding
events that rapidly decrease salinity levels. Due to their sessile and slow moving nature, bivalves are
particularly vulnerable to rapid or prolonged changes in the physico-chemical environment. The
recent freshwater deprivation crisis that prevailed for the last decade resulted in a significant loss in
bivalve species richness within the system. An annotated and illustrated bivalve census revealed the
occurrence of twenty-four species within St Lucia between the years 1925 and 2011. However, only
six species were recorded during the most recent survey in March 2011. The infaunal razor clam,
Solen cylindraceus, and the epifaunal brackwater mussel, Brachidontes virgiliae, are currently the
dominant bivalve species within St Lucia. This study, therefore, aimed to record the species richness
of bivalves found in Lake St Lucia and to investigate key biological aspects of the two dominant
bivalve taxa within the system, under different salinity regimes. Experiments revealed that S.
cylindraceus can tolerate salinities between 15 and 65, while B. virgiliae prefers salinity levels
ranging from freshwater to 20. The varying tolerance limits, therefore, dictate the distribution of these
species during different climatic conditions within the estuarine lake. During wet periods, S.
cylindraceus is restricted to the northern reaches, unable to tolerate the oligohaline conditions present
in the rest of the system. Conversely, B. virgiliae, often restricted to the Narrows, becomes ubiquitous
throughout the system under such conditions. Solen cylindraceus can reach a maximum length of 95
mm. However, in the St Lucia estuarine system, specimens seldom exceed a length of 55 mm,
probably because prevailing/re-occurring harsh conditions prevent them from reaching maximum
size. In situ measurements of this species also revealed less growth during the first year of life than for
the same species in different systems. While B. virgiliae is substantially smaller than S. cylindraceus,
the high densities that this species is able to attain makes it an important grazer with the potential to
have significant feeding impacts on the local phytoplankton biomass. Results showed that in localised
areas, B. virgiliae populations may consume up to eight times the available phytoplankton biomass.
These key bivalve species are strongly influenced by the fluctuation in climatic conditions from wet to
dry phases. Thus, understanding the effects that climatic shifts have on key estuarine species is
essential, as flood and drought events are predicted to increase in frequency, intensity and duration as
a result of global climate change. / Thesis (Ph.D.)-University of KwaZulu-Natal, Durban, 2014.
|
79 |
Economic consequences of ecological change: restoration options for the Mfolozi floodplain and implications for Lake St. Lucia, South AfricaCollings, Sandy Lyn January 2010 (has links)
Lake St Lucia in northern KwaZulu-Natal, South Africa, experiences severe ecological stress during dry periods largely as a result of diminishing freshwater supplies and conditions of hypersalinity. Possible intervention involves diverting the Mfolozi River to the St Lucia Lake system. However, due to high sediment loading, water from the Mfolozi river requires considerable filtration before a link can be established. A suggested option considered in this study is to restore the existing sugarcane farmlands on the Mfolozi Floodplain (~20 800 ha) to previous wetland conditions to reinstate a sediment removal function amongst other benefits. Proposed restoration will have a direct impact on the industries currently supported by the iSimangaliso Wetland Park and the Mfolozi Floodplain (tourism, sugar, conservation). to understand a measure of such impacts, ecosystem services for both Lake St Lucia and the Mfolozi Floodplain were analysed (flood alleviation, water provision, water purification, sediment regulation, tourism, fisheries, vegetation for harvest, existence, cultural and research). Annual economic values for each ecosystem service were determined by means of valuation methods that included benefit transfer and replacement cost. Results showed a current annual minimum value of the Mfolozi Floodplain and Lake St Lucia as greater than R21 million and R1.1 billion respectively. Partial restoration of the floodplain (~6 000 ha) is expected to increase the sum of all ecosystem services values by approximately 26% for the Mfolozi Floodplain and by 23% for the St Lucia System. Full restoration (~20 800 ha) increases the total ecosystem services value by 88% and 50% for the Mfolozi Floodplain and St Lucia System respectively. Results showed that economic values for existence, fisheries, tourism and water provision increase by the greatest percentage for the St Lucia System under both restoration scenarios. Partial and full restoration of the floodplain will result in the greatest increases in economic value for the services existence, tourism, fisheries and the harvesting of vegetation on the Mfolozi Floodplain.
|
80 |
A Comparison of the Frequencies of Selected Teaching Behaviors of Trained and Untrained TeachersJoseph, Raymonde Antonia Frances 01 January 1990 (has links)
The purpose of the study was to compare the frequencies of a selected set of teaching behaviors of trained and untrained teachers in elementary schools in St. Lucia. The dependent variables in the study were the frequencies of Structuring, Questioning, Feedback and Praise behaviors. The independent variables were training, grades awarded at teaching practice, and subject areas.
Records of the lessons were obtained through the use of audiotapes. The behaviors were coded using a low inference observation schedule. The data were analyzed using means and standard deviations. The significance and inferential statistic applied was the chi-square.
Significant differences were found to exist in the frequencies of Questioning, Feedback and Praise behaviors of trained and untrained teachers. Significant variations were found in the Questioning and Feedback behaviors according to the grades awarded at teaching practice. There were significant variations in the frequencies of all classes of behaviors across subject areas.
|
Page generated in 0.0485 seconds