Please read the abstract in the section, 00front, of this document / Dissertation (MSc)--University of Pretoria, 2008. / Zoology and Entomology / unrestricted

MSc (Botany)

Bevarandet av natur och miljö är en viktig del av Sveriges markanvändningsplanering. Ett sätt att bevara dessa rika områden på lång sikt är genom inrättandet av naturreservat. Naturreservat upprättas oftast av Länsstyrelsen för just detta syfte vilket i vissa fall kan stå i kontrast till kommunens önskan om att använda marken för andra intressen och ändamål. Ett sådant exempel utgör Naturreservatet Häcksören som upprättades i december 2021 av Länsstyrelsen i Uppsala och inom vilket Älvkarleby kommuns avloppsreningsverk är beläget. Reningsverket och naturreservatet representerar båda allmänna intressen som i den avvägning som gjorts strider mot varandra. Syftet med arbetet är att se hur utvecklingsambitionerna hos Älvkarleby kommun påverkas av den avvägning som är gjord mellan det allmänna intresset för reningsverket och det allmänna intresset för naturreservatet. Förhoppningen är att studien är till nytta för andra kommuner i fall där avvägningar görs mellan liknande motstridande allmänna intressen och där dess konsekvenser beaktas.  Studien är baserad på kvalitativa metoder som har genomförts via en kombination av litteraturstudie, semi-strukturerade intervjuer och studier i lagrum och domar för att på bästa sätt besvara arbetets frågeställningar. Sju intervjuer har genomförts med sakkunniga personer inom ämnet som representerar de olika myndigheterna samt en utomstående juridiskt sakkunnig. Resultatet av fallstudien visar att det finns olika syn mellan Älvkarleby kommun och Länsstyrelsen när det gäller den avvägningen som gjorts. Framför allt är detta förknippat med att de båda parterna ser fallet utifrån olika tidsperspektiv. Kommunen är angelägen om att ett eventuell nödvändigt framtida utökat ianspråktagande av mark för reningsverket säkerställs och således inte påverkar kommunens långsiktiga utvecklingsvisioner. Länsstyrelsens beslut grundar sig i situationen såsom den är idag. De förnekar inte att en utbyggnad av reningsverket kan bli aktuell men eftersom detta är oförutsägbart i tid och rum anses det inte relevant att ta detta i beaktande vid tillfället då reservatet inrättas. Studien avslutar med att diskutera huruvida kommunens argumentation ska tas i större beaktande vid liknande framtida fall. / Preserving nature and the environment is essential for Sweden's land use planning. One way to preserve these rich areas for the future is by setting up nature reserves. The County Administrative Board usually establishes nature reserves for this very objective, which in some cases may contrast with the municipality's desire to use the land for other interests and purposes. One such example is the Häcksören Nature Reserve, established in December 2021 by the County Administrative Board in Uppsala and within which Älvkarleby municipality's sewage treatment plant is located. The treatment plant and the nature reserve represent public interests that conflict with each other in the balance that has been struck. The purpose of the study is to see how the development ambitions of Älvkarleby municipality are affected by the balance that has been made between the general interest in the treatment plant and the public interest in the nature reserve. The hope is that the study will be helpful for other municipalities in cases where balances are made between similar conflicting public interests and where its consequences are considered. The study is based on qualitative methods carried out through a combination of literature study, semi-structured interviews, and studies in law and judgments to best answer the work's questions. Seven interviews were conducted with experts in the subject representing the various authorities and an outside legal expert. The case study results show that there are different views between Älvkarleby municipality and the County Administrative Board regarding the balance that has been made. Above all, this is associated with the two parties seeing the case from different time perspectives. The municipality is concerned that any necessary future increased use of land for the treatment plant is ensured and thus does not affect the municipality's long-term development visions. The County Administrative Board's decision is based on the situation today. They do not deny that an expansion of the treatment plant may be relevant, but since this is unpredictable in time and space, it is not considered pertinent to take this into account when the reserve is established. The study concludes by discussing whether the municipality's argumentation should be taken into more significant consideration in similar future cases.

For centuries, it has been known that nature has a positive impact on human health and well-being. Environmental goal number nine, Outdoor life for good public health, is one of the environmental goals that the Swedish government has decided on until 2020. The goal is to make the natural and cultural landscape more accessible to citizens and increase good public health. Mental illness is relatively common today at all ages, every individual can be affected. Feeling safe and having adapted accessibility in nature is a major significant factor in how the stay is experienced and how it affects the body's mental state. The right to public access we have in Sweden gives us the opportunity to, with respect, stay out in nature. The study's purpose is to develop the possibility of nature experiences in protected areas of Skåne County. Physical activity on prescription (FaR) uses nature walks in nature reserves as a method. The method of the study to get the result was using a checklist out in the feld. The study results show that there is significant development potential for FaR in protected areas of Skåne County.

A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy. Johannesburg, 2016. / In current Middle Stone Age research there is interest in understanding whether climatic and environmental factors played a role in behaviours related to subsistence, mobility patterns and material culture production. From a palaeoenvironmental perspective, the southern Cape is recognized as an important study region for exploring the link, if any, between past environmental conditions and key MSA occurrences. The research presented in this thesis aimed to contribute to the existing database of past environments in the southern Cape through the geochemical analysis of speleothems from a previously uninvestigated locality in the De Hoop Nature Reserve. Together, the De Hoop speleothems provide a discontinuous record of environmental change from marine oxygen isotope stage MIS 5a to MIS 3 (and the Holocene). Results from the De Hoop records indicate warm summer rain and C4 vegetation in early MIS 5a (c. 85 ka to 80 ka) but more variability by late MIS 5a (c. 79 ka to 74 ka). At Klasies River main site, also on the southern Cape coast, the upper MSA II is associated with the warm early MIS 5a conditions. At Blombos Cave, another important coastal MSA site, the Still Bay occurring within terminal MIS 5a was linked to warm but more variable late MIS 5a conditions. While early MIS 4 (c. 73 ka to 68 ka) was comparatively cooler, conditions were similar to those in early MIS 5a. From this research, the earlier phase of the Howiesons Poort at Klasies River main site and the Howiesons Poort at Klipdrift Shelter were correlated with the early MIS 4 conditions in De Hoop. By late MIS 4 (c. 67 ka to 60 ka), conditions remained cool, but were seemingly more variable than during the earlier part of this iii stage / GR2016

Today, it is well known that biological diversity is decreasing worldwide, and the presence of indicator species can identify areas with high biological diversity. Environments with a high presence of indicator species are important to protect and preserve in the form of, for example, nature reserves as these environments indicate high nature values. The aim of this study is to find out whether the coniferous forest's indicator species have the greatest species density and occurrence within the boundaries of the nature reserves in Dalarna, Sweden. The distribution of 10 different indicator species within the coniferous forests of Dalarna, Sweden, was mapped in the QGIS software and the total species density inside as well as outside the nature reserves of Dalarna was compared in the statistical program SPSS. The species density of five selected indicator species was compared inside versus outside of the reserves. The result for the 10 indicator species showed that there was no significant difference between inside versus outside of the reserves, although there were a higher species density per hectare outside the boundaries of the nature reserves. The result for the five selected indicator species showed no significant difference between inside versus outside of the reserves, however, the species density of both R.subpinnatus and P.grossa were higher within the boundaries of the nature reserve. More sightings of indicator species outside the boundaries of nature reserves may indicate that the public is more inclined to report sightings in unprotected areas, rather than reporting sightings in protected areas that have already been established as having high nature values. Many species observations are found just outside the boundaries of the nature reserve, which may indicate that high nature values occur there as well. Further studies about potential buffer zones and their impact on indicator species are encouraged. / Att den biologiska mångfalden minskar världen över är idag välkänt, signalarter är arter som vars närvaro kan tyda på en miljö som kan generera en bra grund för hög biologisk mångfald. Miljöer med hög närvaro av signalarter är viktiga att skydda och bevara i form av exempelvis naturreservat eftersom dessa miljöer tyder på höga naturvärden. Denna studies frågeställning är om barrskogens signalarter har störst arttäthet och förekomst inom naturreservatens gränser. Med hjälp av artobservationer från Artportalen kartlades 10 olika signalarters utbredning i Dalarnas barrskogar i programvaran QGIS. Därefter jämfördes den totala arttätheten för studiens alla arter per hektar innanför och utanför Dalarnas naturreservat i statistikprogrammet SPSS för att se om det fanns en signifikant skillnad mellan respektive område. Även arttätheten för fem utvalda signalarter jämfördes för att se om det fanns en signifikant skillnad mellan de skyddade och icke-skyddade områdena. Resultatet visade att det inte fanns en signifikant skillnad mellan områdena (p=>0,05), även om det var fler artobservationer per hektar utanför naturreservatens gränser. Resultatet för de enskilda arternas arttäthet per hektar och område visade att det inte fanns någon signifikant skillnad mellan områdena, dock var arttätheten för både R.subpinnatus och P.grossa högre inom naturreservatens gränser. Att det förekommer fler observationer av signalarter utanför naturreservatens gränser kan bero på att allmänheten kan vara mer benägna att rapportera in fynd som gjorts i oskyddade områden, i stället för att rapportera in eventuella fynd i skyddade områden som redan har konstaterat höga naturvärden. Många artobservationer återfinns precis utanför naturreservatens gränser vilket kan tyda på att höga naturvärden förekommer även där. Vidare studier kring buffertzoner och dess påverkan på signalarter uppmuntras.

Abstract in English, Afrikaans and Zulu / In an increasingly changing world, the attributes of human and physical environments are critical in assessing human quality of life (HQoL). The research sources consulted for this thesis point to specific relationships between urban change, ecosystem services and the HQoL. A variety of models have been developed in the global North to assist urban planners to manage the benefits and stressors related to urban shrinkage, ecosystems and HQoL. In the global South the trend is urban growth rather than shrinkage and few models are available for this context. Based on a mixed-method case-study approach, the Rietvlei Nature Reserve, located in the rapidly-growing urban peripheral zone between the Tshwane and Ekurhuleni metropolitan areas in the Gauteng province of South Africa, was selected to assess the benefits and stressors of localised urban development, conservation and sense of place. The purpose of the assessment was to develop a Greenspace Stress Model of Urban Impact (GSMUI) that would be of value to local authorities in managing the interplay of the varied functions of a nature reserve as a greenspace in the global South. Land-use changes were analysed using remote-sensing images. Semi-structured interviews were conducted with purposively-selected key informants to evaluate the functions of the Reserve and the objectives of the Ecological Management Plan for the Reserve. The benefits and risks to the Reserve, as well as the sense-of-place aspects, were identified through semi-structured interviews with 18 purposively-selected key informants, 181 on-site face-to-face semi-structured interviews with visitors to the Reserve, group discussions with interest groups and electronic surveys involving 365 respondents. Data were also collected through the researcher’s own observations and her participation in activities at the Reserve. The empirical results of the research were verified by 14 purposively-selected key specialist informants, who evaluated and ranked the identified benefits and stressors. Benefits and stressors were not ranked the same from different perspectives. Using the results of the empirical research, the researcher was able to merge and adapt a number of models developed for the management of greenspaces in the global North in order to develop the GSMUI specifically for the Rietvlei Reserve. Guidelines were also developed for the application of the GSMUI in geographically similar greenspaces in the global South. / In ‘n toenemend veranderende wêreld, is die eienskappe van menslike en fisiese omgewings krities vir die evaluering van menslike lewenskwaliteit (HQoL). Die navorsing wat geraadpleeg is, het spesifieke verwantskappe tussen stedelike verandering, ekosisteemdienste en HQoL aangedui ‘n Verskeidenheid modelle is in die globale Noorde ontwikkel om stedelike beplanners te help om die voordele en stressors verwant aan ontwikkeling (stedelike inkrimping), ekosisteme en menslike lewenskwaliteit, te bestuur. Onvoldoende modelle is nog ontwikkel vir die om die teenoorgestelde neigings in die globale Suide te bestuur. ’n Gemengdemetodes-gevallestudie-benadering is gevolg om die voordele en stressors van stedelike ontwikkeling, bewaring en sin vir plek in die Rietvlei Natuurreservaat (geleë in die snelgroeiende stedelike randgebiedsone tussen die Tshwane en Ekurhuleni Metropolitaanse gebiede in die Gauteng Provinsie van Suid-Afrika) te ondersoek. Verandering in grondgebruik is deur afstandwaarnemingsbeelde ontleed. Semi-gestruktureerde onderhoude is met doelbewus-geselekteerde sleutelinformante gevoer om die funksies van die Reservaat, sowel as die doelwitte van die Reservaat se ekologiese bestuursplan, te evalueer. Semi-gestruktureerde onderhoude met 18 doelbewus-geselekteerde sleutelinformante, 181 semi-gestruktureerde persoonlike onderhoude met besoekers aan die Reservaat en groepbesprekings is met ereveldwagters en belangegroepe gevoer, en 365 elektroniese vraelyste is ontleed ten einde die voordele en risiko’s vir die Reservaat en ook die pleksin te identifiseer. Data is ook deur middel van waarneming en deelname aan aktiwiteite in die Reservaat ingesamel. Die empiriese resultate van die navorsing is geverifieer deur 14 doelbewus-geselekteerde sleutelinformante wat die geïdentifiseerde voordele en stressors geëvalueer en geklassifiseer het. Voordele en stressors is verskillend evalueer uit verskillende oogpunte. Die gebruik van die empiriese navorsing het die navorser in staat gestel om ’n aantal modelle aan te pas wat vir die bestuur van groenruimtes in die globale Noorde ontwikkel is en te integreer ten einde die GSMUI te skep. Die CSMUI is spesifiek op die bestuur van die Rietvlei Natuurreservaat gemik. Die navorsing bied ook ‘n generiese GSMUI met implementeringsriglyne vir geografies-gelyksoortige groenruimtes in die globale Suide. / Kumhlaba oguquka njalo, isimo sabantu nesemvelo kubalulekile ekuhloleni iqophelo lempilo yabantu i-Human quality of life (HQoL). Ucwaningo oluhloliwe lukhombise ukuthi kukhona ubudlelwane obuthile phakathi kokuncipha/ukwanda, inkonzo yobudlelwane babantu nemvelo kanye ne HqoL. Lokhu kuxhumana kwehlukile kancane ezindaweni zaseNyakatho nomhlaba (ukungcipha kwedolobha) nezindawo zaseNingizimu nomhlaba lapho ukwanda kwamadolobha kugqame khona. Kwakhiwe amamodeli ahlukahlukile khona eNyakatho nomhlaba ukusiza abahleli bamadolobha ukuphatha izinzuzo nokuhluphayo okuhambisana nentuthuko (ukuncipha kwedolobha), kanye nesimo sendawo kanye neHQol. Awekho amamodeli awenziweyo ukusiza ukuphatha isimo esehlukile eNingizimi yomhlaba. Ngokusebenzisa inqubo exubile, inqubo ye-case study, iRietvlei Nature Reserve (etholakala lapho kwanda khona ngokushesha amadolobha phakathi kweTshwane neEKurhuleni kwiprovinsi laseGauteng eNingizima Afrika), yakhethwa ukuhlola izinzuzo nezingcindezi zokuthuthuka kwamadolobha, nokugcina isimo semvelo kanye nobunjalo obuthile bendawo. Injongo yalolu hlolo bekuwukwenza indawo ebizwa iGreenspace Stress Model of Urban Impact (GSMUI) ezosiza iziphathimandla zendawo ukuphatha ukuxhumana okukhona phakathi kwezinhloso ezihlukahlukene zeReserve njengendawo eluhlaza kwiNingizimu neAfrika yomhlaba. Kwahlaziywa indlela eguqukayo yokusetshenziswa komhlaba ngokusebenzisa imifanekiso ebheka ikude etholakala kuma mepi akhombisa indikimba (thematic map). Kwenziwa ama-semi-structured interviews nababambiqhaza bolwazi ababalulekile ukuhlola ukusebenza kweReserve kanye nezinhloso zohlelo olubizwa i-Ecological Management Plan for the Reserve. Izinzuzo nezingcindezi zale-Reserve, kanye nobunjalo obuthile bendawo, kwaphawulwa, ngokwenza ama-semi-structured interview nabathile ababalulekile abakhethwa abayi 18 ukuxoxa nabo, futhi kwenziwa nama-semi-structured interview ngokubhekana ubuso nobuso nezivakashi ze-Reserve ezingama 181, kanye nezingxoxo nabaqaphi abathile besiqiwi (rangers) kanye namanye amaqembu athintekayo. Ulwazi lwaqokelelwa futhi ngokuthi abacwaningi babheke lokho okwenzekayo kanye nokubamba iqhaza kwimisebenzi ye-Reserve. Imiphumela yobufakazi bocwaningo yaqinisekiswa ngosolwazi ababalulekile bobuchwepheshe abangu 14 ababekhethelwe le nhloso, abahlola babuya babeka ngamazinga izinzuzo nezingcindezi ukwenzela ukuthi abacwaningi babuye baphinde bakwazi ukwenza enye i-GSMUI. Ngokusebenzisa imiphumela yobufakazi bocwaningo, umcwaningi wakwazi ukuhlela kabusha amamodeli amaningana athile enziwe ukuphatha izindawo eziluhlaza eNyakatho lomhlaba, ukuze enze GSMUI eqondene nokuphatha iReserve laseRietvlei. Ucwaningo lubuye lwahlinzeka futhi i-GSMUI enabile engasetshenziswa njengemikhombandlela yezinye izindawo eziluhlaza ezifana nalezi khona eNingizimu yomhlaba. / Geography / Ph.D. (Geography)

No description available.

I Sverige började processen med att skydda natur redan 1909 och arbetet har fortsatt fram till idag. Även om naturskyddet ska gynna oss alla, är arbetet med det sällan problemfritt. Mitt intresse för dessa problem, hur de kan förstås och hanteras på ett konstruktivt sätt, är utgångspunkten för denna kandidatuppsats. Studien ämnar undersöka hur information och kommunikation har påverkat de närboendes upplevelse till Sand Life, i samband med utökandet och restaureringen av naturreservatet Haväng och Vitemölla strandbackar. I fallstudien undersöks delvis också den konflikt som uppstod i processen. Undersökningen möjliggjordes i tre steg: intervjuer med länsstyrelsen och Sand Lifes medarbetare; enkätundersökning och djupintervjuer med ett antal närboende i Vitemölla. Resultatet tyder på att de närboende som grupp, initialt var negativt inställda till Sand Life. Inställningen tycks bottna i att man upplevt länsstyrelsen och Sand Lifes ursprungliga planer som alltför omfattande och inte tillräckligt förankrade, utifrån ett lokalt perspektiv. Det framkom också att informationen om projektet hade varit bristfällig, vilket möjligen kan kopplas till den inställning man initialt hade. Idag pekar resultaten på att de närboende som grupp är neutrala till försiktigt positiva i sin upplevelse av Sand Life. I huvudsak verkar detta bero på att åtgärderna i naturreservatet blev tilltalande; möjligen kan inställningen också kopplas till att länsstyrelsen och Sand Life tog hänsyn och reviderade skötselplanen samt visade större öppenhet mot de närboende. Eventuellt kan proaktiv information, tydliga avsikter och viljan att utveckla olika planer och projekt i en kontinuerlig dialog med lokalbefolkningen begränsa naturskydd- och förvaltningskonflikters omfattning. / Although nature conservation is supposed to benefit all of us, the work is rarely trouble-free. My concern for these problems is the starting point for this candidacy. The study intends to investigate how information and communication has influenced the residents' attitude to Sand Life, in connection with the development of Haväng and Vitemölla nature reserve. The case study also examines the conflict that arose in the process. The investigation was made possible in three steps: interviews with the county administrative board and Sand Life staff members; questionnaire and interviews with residents around Vitemölla. The result indicates that the residents as a group initially were negative in their attitude to Sand Life. The attitude seemed to be caused by the experience that the county administrative board and Sand Lifes' original plans for the nature reserve was too extensive and not sufficiently anchored, from a local perspective. It was also found that the information about the project had been inadequate, which could possibly be linked to the initial attitude. Today the results indicate that the residents as a group are neutral to cautiously positive in their attitude to Sand Life. Possibly due to the fact that the measures taken in the nature reserve became appealing; the attitude can perhaps also be linked to the authorities revising the care plan and showing greater openness towards the residents. Proactive information, clear intentions and the willingness to develop different plans and projects in a continuous dialogue with locals, can possibly limit the extent of conflicts.

With a declining population of roughly 3000-5000 individuals in Africa, African wild dogs (Lycaon pictus) are one of the most endangered carnivores in the world. As the global human population expands, it is becoming increasingly unlikely that large portions of land will be set aside for conservation, especially in developing countries. Thus, recent wild dog conservation efforts in South Africa have concentrated on establishing a managed metapopulation. A metapopulation is a group of geographically isolated subpopulations of a species that are managed (using supplementation and harvesting) to mimic natural gene flow. The Great Fish River Nature Reserve (GFRNR) in the Eastern Cape Province of South Africa has been identified as a potential reserve to become part of the national wild dog metapopulation. My research aimed to conduct a feasibility assessment of the long-term (~ 25 years) success of a wild dog reintroduction into the GFRNR. This assessment included biological modelling of wild dogs and their expected prey, and determining the potential anthropogenic threats to wild dogs on the private and communal land surrounding the reserve. I used VORTEX population modelling and determined that the GFRNR is likely to have a wild dog carrying capacity of ~22 individuals. Using a 25-year modelling simulation, the most appropriate wild dog reintroduction scenario would be to reintroduce six females and four males initially and supplement the population with one female and two males in years 3, 10, 15 and 23. In addition, the harvesting/removal of one male and one female in years 10 and 20 would be required to ensure 100% population persistence and adequate genetic diversity. Kudu (Tragelaphus strepsiceros) and bushbuck (Tragelaphus scriptus) are expected to be the two most important prey species for reintroduced wild dogs in the GFRNR. Furthermore, wild dogs are likely to prefer the north-western and south-western sectors of the reserve because of the relatively high prey densities in these areas. However, regular monitoring of both the potential prey and the wild dog populations is essential to ensure persistence of the wild dogs and to prevent prey populations decreasing precipitously. Using structured questionnaire interviews (n = 128), I found that while neighbouring land owners and local communities were generally positive about the potential wild dog reintroduction (56 % of all respondents), several threats to wild dogs were identified along the reserve boundary and on the adjoining unprotected land. Some private landowners and members of rural communities around the reserve (34 %) stated that they would kill any wild dogs that dispersed onto their land. In addition, some respondents (8 %) admitted to believing in traditional uses for wild dog products (e.g. fur) which could result in the illegal killing of wild dogs outside of the GFRNR for traditional purposes. Poaching and the presence of unvaccinated domestic dogs on neighbouring land were also identified as being potential threats to a reintroduced wild dog population. However, such anthropogenic threats appear to be localised to the western and southern boundaries of the reserve. Therefore, by implementing preventative measures (such as anti-snare collars, anti-poaching patrols and vaccination against rabies and canine distemper) the likelihood of such threats occurring can be reduced. I conclude that the GFRNR can sustain a population of wild dogs and successfully contribute to South Africa‘s national metapopulation. An additional reserve will benefit the country‘s metapopulation by increasing the number of wild dogs available for translocation, thereby increasing genetic diversity and overall resilience (to environmental change, disease etc.) of South Africa‘s wild dog population. This will contribute towards the future conservation of this endangered species.