Log in

Relevant bibliographies by topics / Floristic Regions / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Floristic Regions.

Dissertations / Theses on the topic 'Floristic Regions'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Floristic Regions.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Janion, Charlene, and Charlene Scheepers. "Springtail diversity in the Cape floristic region." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79796.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Understanding the distribution, abundance and diversity of species and the mechanisms causing these patterns has been the interest of ecologists and taxonomists for decades. The exceptionally high plant diversity in the Fynbos biome has been well studied. Whilst early arguments suggested that the high plant diversity is not reflected in the arthropod diversity and that insect species richness is low compared to other comparable areas, these observations might have been hampered by the taxonomic impediment. Despite global r

APA, Harvard, Vancouver, ISO, and other styles

2

Hulbert, Joey Michael. "Phytophthora diversity in the Cape Floristic Region." Thesis, University of Pretoria, 2020. http://hdl.handle.net/2263/77828.

Full text

Abstract:

The biodiversity in the Cape Floristic Region of South Africa faces many threats from anthropogenic sources such as the trade associated with our globalized economy. Aggressive plant pathogens in the genus Phytophthora are of particular concern because of their capacity to invade and change plant communities and their frequent dissemination via global trade. The fact that South Africa has a developing economy with many socioeconomic challenges, the capacity to monitor the abundance of plants imported for pests and pathogens is largely inadequate. Consequently, low cost methods to enhance post-

APA, Harvard, Vancouver, ISO, and other styles

3

Sanders, Shareen. "Increased Drought and Fire Intensity Regimes Reduce the Ecological Resilience of Mediterranean Forests in the South-West Australian Floristic Region." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-419206.

Full text

Abstract:

Future climate projections suggest an increase in average temperature as well as a decrease in average winter rainfall across the south-west Australian floristic region (SWAFR). These adverse future climatic conditions will amplify the intensity and frequency of disturbance events such as drought and fire. Mediterranean forests within the SWAFR are prone to drought and fire disturbance and have acquired resilience through the selection of drought and fire tolerable species. However, shifts in the magnitude of these disturbance events could increase the recovery period required for recruitment,

APA, Harvard, Vancouver, ISO, and other styles

4

Boonzaaier, Carmen. "Conservation in human-influenced areas : epigaeic arthropods in the Cape Floristic Region Lowlands." Thesis, Stellenbosch : Stellenbosch University, 2006. http://hdl.handle.net/10019.1/21551.

Full text

Abstract:

Thesis (MSc)--University of Stellenbosch, 2006.<br>ENGLISH ABSTRACT: The conservation of biodiversity is becoming increasingly challenging as habitats are disturbed, fragmented or destroyed. Although nature reserves now cover more than 10 % of the earths’ surface it has become clear that more will have to be done to ensure the long-term survival of species. Therefore, focus is increasingly shifting towards conserving biodiversity in natural and semi-natural remnants in human-influenced areas. This study aimed to determine the contribution of remnants in human-influenced areas to the cons

APA, Harvard, Vancouver, ISO, and other styles

5

Musker, Seth. "Polyploid speciation in the Greater Cape Floristic Region : species limits within Ehrhara calycina." Bachelor's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/14016.

Full text

Abstract:

Ehrharta calycina J. E. Sm. (Poaceae) is a widespread and often abundant species whose core distribution lies within the Greater Cape Floristic Region (GCFR). Importantly, it shows a high degree of morphological and ploidy level variation. Based on observations of distinct forms co-occurring at multiple sites, the hypothesis that E. calycina comprises more than one species was tested. Morphological analysis of herbarium specimens using a multivariate approach found strong evidence for the presence of two distinct phenetic clusters among specimens from sites of sympatry, and these were termed â

APA, Harvard, Vancouver, ISO, and other styles

6

Midgley, Alison. "The many forms of thirst : investigating forest constraints in the Cape Floristic Region." Bachelor's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/14019.

Full text

Abstract:

Identifying the primary determinants of forest distribution has been a considerable challenge for ecologists. Although focus was traditionally directed towards climatological variables, predictive models showed that suitable forest conditions were far more extensive than the actual forest distribution. This study investigated the primary constraints of forests in the Cape Floristic Region (CFR), in South Africa. Based on a study by Lehmann et al. (2011) on savanna ecosystems, it was hypothesised that seasonal drought and moisture balance were more likely to limit forest distribution than broad

APA, Harvard, Vancouver, ISO, and other styles

7

Hoffmann, Vera. "Plants as biotic indicators of Neogene palaeoenvironmental evolution in the Cape Floristic Region." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/11504.

Full text

Abstract:

Includes abstract.<br>Includes bibliographical references.<br>Comparative biologists have refined the synthesis of molecularly dated phylogenies and ecological data into an important tool to reconstruct the evolution of species and biomes, and to unravel the history and role of abiotic determinants of diversity patterns (fire, climate, tectonism). This has been extended into the cross-disciplinary, geobiological approach of 'geoecodynamics' has exploits the spatial fidelity of locally restricted organisms to unravel the temporal and spatial evolution of landforms. This research approach is ado

APA, Harvard, Vancouver, ISO, and other styles

8

McGrath, Kate. "Phylogeography and population genetics of two forest endemic mosses in the Cape Floristic Region." Bachelor's thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/26502.

Full text

Abstract:

Different histories for forests in Southern Africa have been hypothesized from vegetation biogeography and pollen analysis. However, the history of forests is still controversial. Phylogeography uses gene genealogies to infer history of distributions. Two forest endemic moss species were sampled: Leptodon smithii; and Neckera valentiniana. Two gene regions were used, trnLF (chloroplast genome) and ITS1 (nuclear genome). Neckera valentiniana showed no variation from the populations sampled. Results from Leptodon smithii based on the trn and ITS region suggest that forests once were widespread,

APA, Harvard, Vancouver, ISO, and other styles

9

Allsopp, Nicholette. "The occurrence and ecophysiology of vesicular-arbuscular mycorrhizal plants in the Cape Floristic region." Thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/26070.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Mann, Deborah Mary. "Evolutionary patterns in Thamnochortus (Restionaceae) : a study of specification in the Cape floristic region." Master's thesis, University of Cape Town, 1996. http://hdl.handle.net/11427/16136.

Full text

Abstract:

Bibliography: pages 85-92.<br>Patterns of speciation and potential evolutionary pressures and constraints were investigated in the genus Thamnochortus. Phenetic methods were used to define boundaries of species prior to cladistic analyses. Comparative techniques were employed to investigate aspects of dispersal biology and fire survival habit. Methods of historical biogeography were used to evaluate vicariance and dispersal hypotheses. The broader understanding of species evolution gained in such a comparative study is important in conservation of species or areas, forming a basis for further

APA, Harvard, Vancouver, ISO, and other styles

11

Yates, Megan J. "The functional, ecological and evolutionary significance of culm structures in the Cape Floristic Region." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/11043.

Full text

Abstract:

Includes abstract.<br>Includes bibliographical references.<br>The Cape Floristic Region lies in the southwestern Cape, South Africa, and is known for its high species richness and endemism. This Mediterranean-type climate region receives winter rainfall that averages between 250 and 650 mm annually over most of the region but reaches an average of more than 1000 mm in the mountains of the southwest and southern Cape.

APA, Harvard, Vancouver, ISO, and other styles

12

Gibson, Myfannwyn. "The effects of cloud moisture on Restions, Ericas and Proteas in the Cape Floristic region." Bachelor's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/26119.

Full text

Abstract:

Recent studies on the interception and utilization of occult precipitation (fog, cloud-borne mist and dew) have revealed that the direct wetting of foliage provides a water subsidy to plants of various ecosystem types. In this study, we investigate the presence of foliar uptake, and the effects of misting on the plant water potential of species representing diverse functional types, namely ericoids, proteoids and restioids in Fynbos species occurring within the Cape Fold mist belt. In this study, foliar uptake after 180-min submergence in distilled water was demonstrated by five of the seven s

APA, Harvard, Vancouver, ISO, and other styles

13

Southey, Diane. "Wildfires in the Cape floristic region : exploring vegetation and weather as drivers of fire frequency." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/9017.

Full text

Abstract:

Includes bibliographical references (leaves 68-76).<br>This study assessed the spatial and temporal patterns of wildfires in the Cape Floristic Region (CFR). It focused on the factors that influence fire frequency; namely vegetation age, ignition sources and weather conditions. This work was done to aid decisions on fire management in fynbos nature reserves. Fire intervals were extracted from historical fire records in four reserves in the CFR. The study sites were the Cederberg and Hottentots-Holland (western) reserves and the Swartberg and Outeniqua (eastern) reserves, and fire records were

APA, Harvard, Vancouver, ISO, and other styles

14

Wilcox, Dale Adrian. "Diversity of Frankia associated with Morella species of the Cape floristic region of Southern Africa." Thesis, University of the Western Cape, 2016. http://hdl.handle.net/11394/5346.

Full text

Abstract:

Philosophiae Doctor - PhD<br>Frankia is one of two partners in the globally distributed N2-fixing actinorhizal symbiosis between this filamentous soil-dwelling actinomycete and almost 300 species of host plants from eight diverse angiosperm families. The actinorhizal symbiosis is a major contributor to nitrogen reservoirs in terrestrial ecosystems, and allows actinorhizal plants to perform the role of pioneers in newly formed and nitrogen-poor soils. Frankia are differentiated into four main host-infection groups (1: Alnus/Comptonia/Myrica-infective, 2: Rosaceae/Datisca/Coriaria-infective, 3:

APA, Harvard, Vancouver, ISO, and other styles

15

Kemp, Jurene Ellen. "Untangling mechanisms structuring insect diversity patterns in the Cape Floristic Region : the Restionaceae and their herbivores." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96067.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Research into the patterns and drivers of insect diversity in the Cape Floristic Region (CFR) lags far behind that of plants. Here I sample insect herbivore communities on a dominant plant family (Restionaceae), and use a spatially nested sampling design and network analysis to evaluate the association between plant and insect diversity in the CFR. I find that plant species richness predicts insect richness better than environmental factors. Turnover in insect communities is strongly associated with turnover in plant (both

APA, Harvard, Vancouver, ISO, and other styles

16

Dlodlo, Oscar. "Rhizobia diversity and their effect on the distribution of indigenous legumes in the Cape Floristic Region." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/10419.

Full text

Abstract:

Includes bibliographical references.<br>The Cape Floristic Region (CFR) includes a broad variety of bed rocks and soils are a mosaic of sandstone and shale substrates that give rise to a variety of soil types mainly sandstone, aeolian sands, shale, granite and limestone thereby creating heterogeneity in edaphic conditions. Species composition of plant communities in the CFR is predominantly associated with the parent rock, and the resultant overlying soil. The combination of edaphic and topographical variations, local climate gradients and frequent fires is undoubtedly important in promoting s

APA, Harvard, Vancouver, ISO, and other styles

17

Power, Simon C. "Soil P availability limits legume persistence and distribution in the fynbos of the Cape Floristic Region." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11841.

Full text

Abstract:

Includes abstract.<br>Includes bibliographical references (leaves 64-83).<br>Legumes are unable to persist through post-fire succession in fynbos vegetation of the CFR unlike species in families such as Proteaceae and Restionaceae. The majority of fynbos legumes are seeders which tend to be shorter-lived than co-occurring resprouters. Seeders are likely to have a higher nutrient requirement than resprouters as they tend to invest more biomass- above ground, grow faster and produce more seed. In the oligo-trophic soils occupied by fynbos, symbiotic N2-fixation enables legumes to overcome low N

APA, Harvard, Vancouver, ISO, and other styles

18

Walker, Maryalice Harkins. "Local adaptation of Geoffroy's horseshoe bat, Rhinolophus clivosus, to the Cape floristic region of South Africa." Master's thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/6170.

Full text

Abstract:

Includes bibliographical references (leaves 77-90).<br>Populations of species adapt to the environment in which they live. This study investigated local adaptation in Rhinolophus clivosus (Chiroptera: Rhinolophidae) by comparing its phenotype with that of a co-occurring endemic species. R. capensis, in the Cape Floristic Region of South Africa. If R. clivosus has become locally adapted, its phenotype would be predicted to have diverged from R. clivosus populations elsewhere in the country while converging upon R. capensis. Evidence for local adaptation was found in R. c/imslls at De Hoop Natur

APA, Harvard, Vancouver, ISO, and other styles

19

Mosime, Bonolo. "In vitro conservation of selected endangered plant species indigenous to the Cape Floristic Region, South Africa." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2343.

Full text

Abstract:

Thesis (MTech (Horticulture))--Cape Peninsula University of Technology, 2016.<br>This study focused on optimising four types of in-vitro conservation methods, namely: 1), micropropagation, 2) in-vitro slow growth, 3) seed germination and 4) cryopreservation for selected endangered plant species indigenous to the Cape Floristic Region. It is one of the targets set by United Nations millennium development goals, to integrate different conservation measures in order to preserve plant diversity and mitigate losses of genetic diversity. Therefore this study uses Phalaenopsis hybrids as a trial spec

APA, Harvard, Vancouver, ISO, and other styles

20

Gardee, Muhammed Nizaar. "Recovery of vegetation and bees after removal of pine forests by fire in the Limietberg region of the Cape Floristic Region biodiversity hotspot." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97796.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: The present global biodiversity crisis is characterized mostly by loss of species due to habitat destruction but there other major threats – notably invasive alien species. The term “biodiversity hotspot” has been coined to emphasize areas for conservation prioritization – areas that have high biodiversity under threat from habitat destruction, invasive species, etc. The Cape Floristic Region (CFR) in the Western Cape (WC) Province of South Africa has the highest biodiversity of all Mediterranean-type climate regions global

APA, Harvard, Vancouver, ISO, and other styles

21

Musvuugwa, Tendai. "Biodiversity and ecology of ophiostomatoid fungi associated with trees in the Cape floristic region of South Africa." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86421.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Very little is known about the diversity of fungi associated with Afromontane forests of the Cape Floristic Region (CFR) of South Africa. The ophiostomatoid fungi include many species, some known as pathogens in the CFR, while others are well-known saprophytes important in wood degradation. This study focused on the biodiversity and ecology of tree-associated ophiostomatoid fungi (Ophiostomatales) in the CFR. In addition to this, mites and subcortical beetles associated with the CFR trees were collected, regardless of whether th

APA, Harvard, Vancouver, ISO, and other styles

22

Machingambi, Netsai. "An investigation into the death of native Virgilia trees in the Cape Floristic Region of South Africa." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79902.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The Cape Floristic Region (CFR) of South Africa is well-recognised for exceptionally high plant species diversity and endemism. However, little attention has been bestowed on the pests and pathogens in this region, even though these may greatly influence plant distribution and evolution. In this study we identify various arthropods and fungi as pests and diseasecausing organisms of the ecologically and economically important CFR-endemic tree taxa of Virgilia. We isolated, identified and determined the pathogenicity of key f

APA, Harvard, Vancouver, ISO, and other styles

23

Diedericks, Genevieve. "Phylogeography of the Cape girdled lizard, Cordylus cordylus : investigating biogeographic patterning in the Cape floristic region (CFR)." Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85866.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: In the present study I examined the phylogeography of the rupicolous Cape girdled lizard, Cordylus cordylus. Samples were collected across the species distribution range from 63 localities in the Eastern and Western Cape and Free State provinces of South Africa, yielding a total sample size of 207 specimens. Four DNA loci, two nuclear (PRLR, PTPN12) and two mitochondrial (16S rRNA, ND2), were sequenced. Bayesian inference, maximum likelihood and maximum parsimony methods were employed to test evolutionary relationships amo

APA, Harvard, Vancouver, ISO, and other styles

24

Kieck, Marius Burger. "Comparative impacts of fragmentation on birds in two bioregions in a biodiversity hotspot, the Cape Floristic Region." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1627.

Full text

Abstract:

Thesis (MScConsEcol (Conservation Ecology and Entomology))--University of Stellenbosch, 2009.<br>Habitat loss and fragmentation are two of the most pressing threats to biodiversity. Avifaunal diversity and integrity is under immense pressure from these two processes. We have made major advances in our understanding of avifaunal responses to habitat fragmentation, but mostly focus on either fragment scale and/or landscape scale influences of fragmentation on birds. A more comprehensive approach to assessing the impacts of fragmentation was used in this study. The avifaunas of two different

APA, Harvard, Vancouver, ISO, and other styles

25

Blanckenberg, Michelle. "Resurrection ecology of invertebrates in temporary wetlands in the Cape Floristic region: effects of urbanisation and fire." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25204.

Full text

Abstract:

Despite their importance to regional biodiversity, temporary wetlands and their invertebrate communities are generally understudied and under-conserved. Resurrection ecology is used to study the communities present in the dry phase of temporary wetlands to gain a better understanding of the functioning and health of these systems. The hatching success of invertebrate propagules in dried soil sediments, collected from temporary wetlands in Cape Sand Fynbos regions of Cape Town, were investigated in 2016. Soil samples were collected from conserved and urban sites (during May and June 2016) using

APA, Harvard, Vancouver, ISO, and other styles

26

Durigon, Jaqueline. "Distribuição e atributos de espécies trepadeiras:análises em escalas global, regional e local." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/106419.

Full text

Abstract:

As trepadeiras apresentam uma grande diversidade de espécies e desempenham um importante papel no funcionamento dos ecossistemas, sobretudo em regiões tropicais. Evidências de que as trepadeiras lenhosas (lianas) estariam aumentando em dominância, trazendo sérias conseqüências para a dinâmica florestal, tornam o estudo de padrões de distribuição de espécies em diferentes escalas e de atributos associados às trepadeiras, temas de grande interesse na ecologia. No presente estudo, mostrou-se que as trepadeiras com raízes adesivas têm maior probabilidade de ocorrer em sítios com níveis mais elevad

APA, Harvard, Vancouver, ISO, and other styles

27

Vrdoljak, Sven Michael. "The conservation value of habitat remnants for flower visiting insects in the lowlands of the Cape Floristic Region." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5280.

Full text

Abstract:

Thesis (PhD(Agric) (Conservation Ecology and Entomology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: See full text document for abstract<br>AFRIKAANSE OPSOMMING: sien volteks dokument vir die opsomming

APA, Harvard, Vancouver, ISO, and other styles

28

Magoba, Rembuluwani Norman Nicholas. "Comparative impact of invasive alien trees and vineyards on arthropod diversity in the Cape floristic region, Western Cape." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5373.

Full text

Abstract:

Thesis (PhD (Conservation Ecology and Entomology))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Invasive alien trees (IATs) and agriculture are rapidly altering the capacity of ecosystems to provide a variety of essential services, with decreasing habitat quality having an adverse effect on arthropod biodiversity. Although both agricultural intensification and IATs have an impact on ecosystems, it is unclear which of these two is currently the most severe. Here I compare the influences of vineyards and IATs on arthropod diversity in the Cape Floristic Region (CFR) from two perspecti

APA, Harvard, Vancouver, ISO, and other styles

29

Yates, Megan. "The physiological importance of small leaf sizes in the mediterranean type ecosystem vegetation of the Cape floristic region." Bachelor's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/26302.

Full text

Abstract:

Numerous "Fynbos" species of the Cape Floristic Region (CFR) have particularly fine, narrow leaves. The rates of transpiration and heat loss are partially dependent on boundary layer conductance, which is determined by leaf shape and size, surface modifications and wind speed. We expected fine-leaved species with higher boundary layer conductance to transpire faster than broad-leaved species at low temperatures whereas at higher temperatures we expected transpiration to be limited by stomata! conductance. In contrast, the rate of heat loss may be constrained by thick boundary layers in larger

APA, Harvard, Vancouver, ISO, and other styles

30

Bradshaw, Peter L. "Endemism and richness in the Cape floristic region : phytogeographic patterns and environmental correlates in a global biodiversity hotspot." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/19036.

Full text

Abstract:

Includes bibliographical references.<br>This study reports on an investigation of the phytogeographical patterns retrieved within the exceptionally species rich Cape Floristic Region (CFR), a global biodiversity hotspot in South Africa. Modern Analytical techniques, including a novel approach developed within this study, were used to identify Phytogeographical Centres. Moreover, the efficiency and optimality of these techniques were tested against each other using several different datasets. Endemism and species richness in the core CFR were assessed against contemporary environmental conditio

APA, Harvard, Vancouver, ISO, and other styles

31

Marr, Sean Murray. "Conservation of the native freshwater fishes of the Cape floristic region (South Africa) : management of non-native species." Doctoral thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/13517.

Full text

Abstract:

Includes bibliographical references.<br>Freshwater fishes are among the most threatened taxa in the world. Increasing demand for freshwater, habitat degradation and the introduction of non-native species, will continue to place pressure on the remaining native freshwater fishes. A meta-analysis estimated that more than 90% of river habitat in three major catchments has been invaded by non-native fish and that catchments covering less than 1% of Cape Floristic Region have no recorded non-native fish introductions, the major rivers containing 10 or more non-native species. The majority of the na

APA, Harvard, Vancouver, ISO, and other styles

32

Gaigher, Rene. "The effect of different vineyard management systems on the epigaeic arthropod assemblages in the Cape Floristic Region, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/1565.

Full text

Abstract:

Thesis (MScConsEcol (Conservation Ecology and Entomology)--Stellenbosch University, 2008.<br>In the Cape Floristic Region of South Africa, where wine grape production and biodiversity conservation are of major importance, innovative management of the landscape is necessary to integrate the two activities. Alternative farming, such as organic and biodynamic farming, focuses on the preservation of biological processes in agroecosystems with the aim of increasing the sustainability of these sytems. It has been demonstrated in other regions that alternative farming can enhance biodiversity. T

APA, Harvard, Vancouver, ISO, and other styles

33

Potgieter, Gardia Purchase. "N and P limitation of fynbos plants and the nutritional status of legume habitats in the Cape Floristic Region." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/6630.

Full text

Abstract:

In general, terrestrial ecosystems are limited by both N and P, but, as legumes fix atmospheric nitrogen, I hypothesized that fynbos legumes would be P limited and nonlegumes would be N limited, and that the degree to which these plants respond to N and P would depend on the levels of each of these two nutrients in the growth media. To test these hypotheses, three legumes and three non-legumes native to the fynbos were grown in a complete factorial arrangement of four levels of N and P in a glass house. Nitrogen was supplied at 20, 40, 80 and 150 mg kg-¹ soil and P at 0.8, 5, 15, and 31 mg kg-

APA, Harvard, Vancouver, ISO, and other styles

34

Ketley, Zoma Anne. "Stream invertebrates and water temperature : evaluating thermal tolerances in the Cape floristic region (South Africa) - implications of climate change." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/8973.

Full text

Abstract:

Includes bibliographical references.<br>Temperature is an important environmental variable for aquatic invertebrates as it affects their development, reproduction and survival. Temperature also affects the abundance and distribution of individuals in a stream or river. Stream temperatures are affected by human impacts which include not only impacts such as pollution, abstraction of water and the removal of riparian vegetation, but also the affects of climate change. In the Western Cape Province, South Africa, it is predicted that air temperatures will increase and winter rainfall will decrease

APA, Harvard, Vancouver, ISO, and other styles

35

Gaigher, René. "The effect of different vineyard management systems on the epigaeic arthropod assemblages in the Cape Floristic Region, South Africa /." Link to the online version, 2008. http://hdl.handle.net/10019/1450.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Ibrakaw, Abobaker Saleh Mohamed. "Chemical investigation of some species of Amaryllidaceae from the Greater Cape Region of South Africa as a source of bioactive compounds." University of the Western Cape, 2020. http://hdl.handle.net/11394/7958.

Full text

Abstract:

Philosophiae Doctor - PhD<br>The family Amaryllidaceae is widely distributed in the southern hemisphere. Members of the family are well known for their content of pharmacologically active alkaloids and represent an important epicentre of Amaryllidaceae-alkaloid diversity. Other metabolites from Amaryllidaceae, such as phenolics including flavonoids, lignans, chromones, and acetophenones, in addition to terpenoids and ceramides have been reported. Boophone haemanthoides (BHE), Crossyne flava (CRO), Clivia miniata (CME) and Nerine humilis (NHE) are members of Amaryllidaceae that have shown biolo

APA, Harvard, Vancouver, ISO, and other styles

37

Wootton, Lara. "Reassessment of species limits and diversification process in the Cape grass genus Ehrharta Thunb." Master's thesis, Faculty of Science, 2020. http://hdl.handle.net/11427/32733.

Full text

Abstract:

The Greater Cape Floristic Region (GCFR) of South Africa has one of the most biodiverse floras in the world. Although ecological speciation is thought to be a primary mechanism behind diversification in the GCFR, it has recently been hypothesised that non-ecological speciation may have an influential role in driving diversification in the montane “sky islands” of the GCFR, potentially resulting in cryptic species. This work seeks to test the relative importance of ecological versus non-ecological processes in powering speciation at different elevations in the GCFR, and to assess the existence

APA, Harvard, Vancouver, ISO, and other styles

38

Ayuk, James. "Water regime requirements and possible climate change effects on Fynbos Biome Restionaceae." University of the Western Cape, 2018. http://hdl.handle.net/11394/6766.

Full text

Abstract:

Philosophiae Doctor - PhD<br>The Cape Floristic Region (CFR) of southern Africa is one of the world’s most unique biodiversity hotspots. However, this biodiversity continues to be threatened by habitat loss due to rapid urbanisation, agriculture and alien vegetation encroachment, and now, by future groundwater extraction and climate change. Previous work had shown that soil moisture is important in structuring wetland plant communities at fine-scale. What is not fully known, however, is how the spatial distribution of species at a local scale is related to soil hydrology and what the res

APA, Harvard, Vancouver, ISO, and other styles

39

Magadlela, Anathi. "The effects of phosphorus (P) deficiency on growth and nitrogen fixation of Virgilia trees from the Cape Floristic Region (CFR)." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79992.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The aim of this study was to determine how P nutrition affects biological nitrogen fixation (BNF) via effects on the N2-fixing bacteria in the nodules of Virgilia species native to the Cape Floristic Region (CFR), South Africa. This was evaluated in 3 separate studies: The first study aimed to determine how phosphorus deficiency affects N nutrition of two legume tree species from the Mediterranean Fynbos ecosystem. This study showed that during prolonged P deficiency, V. divaricata maintained a constant biomass, while V. oroboi

APA, Harvard, Vancouver, ISO, and other styles

40

Van, Blerk Justin J. "The effect of altered rainfall seasonality on post-fire recovery of Fynbos and Renosterveld shrublands in the Cape Floristic Region." Doctoral thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/33950.

Full text

Abstract:

Shifting climate patterns are a cause for concern for natural ecosystems globally. Of particular concern is the effect of climate change on fire-prone, Mediterranean-type shrublands globally because of the heightened sensitivity of post-fire vegetation to environmental conditions. In this thesis, I focused on investigating the relationships between rainfall seasonality patterns and post-fire vegetation processes in neighbouring Fynbos and Renosterveld shrubland communities within the mega-diverse Cape Floristic Region of South Africa. I investigated vegetation sensitivity to moisture availabil

APA, Harvard, Vancouver, ISO, and other styles

41

Moiloa, Ntwai. "Phylogenetic relationships and the effects of edaphic heterogeneity on the distribution of Wiborgia (Fabaceae) in the Greater Cape Floristic region." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20872.

Full text

Abstract:

The Greater Cape Floristic Region (GCFR) is divided into two subregions, the Core Cape Subregion (CCR) and Extra Cape Subregion (ECR), which are mainly characterized by Fynbos and Succulent Karoo biomes, and are recognized among global biodiversity hotspots. The soils in the ECR are mostly shale derived and richer in nutrients compared to the CCR which is characterized by nutrient-poor sandstone soils mainly from the Cape System. The Fabaceae (Leguminosae) is the second largest family in the CCR with a total of about 764 species (belonging to 43 genera, of which 83% of the species are endemic

APA, Harvard, Vancouver, ISO, and other styles

42

Nortje, Griffin. "Assessing the effectiveness of Environmental Impact Assessment as a safeguard to biodiversity in the Cape Floristic Region of South Africa." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27294.

Full text

Abstract:

Environmental Impact Assessment (EIA) is subject to challenges that undermine this process as an effective safeguard to biodiversity. Internationally, effective EIA is hindered by the following issues: a low priority assigned to the consideration of biodiversity and a limited capacity to carry out assessments; a lack of formalised procedures and inconsistent methodologies to address biodiversity within the EIA framework; and a lack of formal requirements for post-project monitoring of biodiversity aspects. Traditionally effectiveness studies in this regard have focused on evaluating the proced

APA, Harvard, Vancouver, ISO, and other styles

43

Naaf, Tobias. "Floristic homogenization and impoverishment : herb layer changes over two decades in deciduous forest patches of the Weser-Elbe region (NW Germany)." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2011/5244/.

Full text

Abstract:

Human-induced alterations of the environment are causing biotic changes worldwide, including the extinction of species and a mixing of once disparate floras and faunas. One type of biological communities that is expected to be particularly affected by environmental alterations are herb layer plant communities of fragmented forests such as those in the west European lowlands. However, our knowledge about current changes in species diversity and composition in these communities is limited due to a lack of adequate long-term studies. In this thesis, I resurveyed the herb layer communities of anci

APA, Harvard, Vancouver, ISO, and other styles

44

Mokotjomela, Thabiso Michael. "A comparison of bird foraging preferences for fruits of indigenous and alien shrubs and seed dispersal potentials in the Cape Floristic Region." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20374.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: This study tested the proposal that fleshy-fruited alien shrubs competed more effectively for avian dispersal services than indigenous shrubs. Several different quantitative measures of increasing complexity were applied to test bird foraging preferences for fruits of two established alien shrubs (Lantana camara, Solanum mauritianum), two emergent alien shrubs (Myoporum tenuifolium, Pittisporum undulatum) and two indigenous shrubs (Chrysanthemoides monilifera, Olea europaea subsp. africana). Overall the simplest quantitativ

APA, Harvard, Vancouver, ISO, and other styles

45

Maistry, Pravin Mark. "Phosphorous requirement of indigenous N-fixing legumes and rhizobial diversity in the low P soils of the Cape floristic region, South Africa." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11732.

Full text

Abstract:

Includes abstract.<br>Includes bibliographical references (leaves 90-108).<br>Soils of the Cape Floristic Region (CFR) vary in phosphorous (P) availability and legume species tend to be distributed in specific edaphic habitats. Eighteen indigenous CFR legume species were grouped as high-P, low-P, Pgeneralist and unclassified plants, by associating their distribution with soil [P] in the CFR. It was hypothesized that the low-P group would be superior N2-fixers than the high-P group at low P supply.

APA, Harvard, Vancouver, ISO, and other styles

46

Shelton, Jeremy Mark. "Impacts of non-native rainbow trout on stream food webs in the Cape Floristic Region, South Africa integrating evidence from surveys and experiments." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/6189.

Full text

Abstract:

Includes abstract.<br>Includes bibliographical references.<br>Impacts of invasive predators may be influenced by whether or not native predators which function in the same way as the invasive predator exist in the recipient system. Impacts are expected to be strong in isolated systems lacking functionally similar predators because native species will be naïve to the foraging behaviour of the introduced predator, and because the invasion is likely to change the role which the native predator assemblage performs. In this thesis I studied how the introduction of a functionally novel predatory fis

APA, Harvard, Vancouver, ISO, and other styles

47

Takahashi, Daiki. "Evolutionary history and mechanisms for generating floral morphological diversity of Asarum (Aristolochiaceae) in East Asia." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263724.

Full text

Abstract:

京都大学<br>新制・課程博士<br>博士(人間・環境学)<br>甲第23263号<br>人博第978号<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授瀬戸口浩彰, 教授加藤眞, 教授市岡孝朗<br>学位規則第4条第1項該当<br>Doctor of Human and Environmental Studies<br>Kyoto University<br>DGAM

APA, Harvard, Vancouver, ISO, and other styles

48

Kehinde, Temitope Olatayo. "Effects of vineyard management and landscape context on taxonomic diversity and interaction networks of flower-visiting insects in the Cape Floristic Region biodiversity hotspot." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17980.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: Both taxonomic diversity and diversity of species interaction networks are experiencing declines as a result of agricultural intensification at habitat and landscape scales. Reversing this trend is a key conservation issue, particularly for important functional groups such as flower-visiting insects and the networks within which they interact. This is of great concern in regions of high conservation priority such as the Cape Floristic Region (CFR), known for its high level of floral and faunal endemism and exceptional speci

APA, Harvard, Vancouver, ISO, and other styles

49

Reizenberg, Jody-Lee. "The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25537.

Full text

Abstract:

Global climate change models indicate that a rise in temperature and reduction in rainfall in the Western Cape Province of South Africa is inevitable and unavoidable. Within the Western Cape lies the Cape Floristic Region (CFR); a biodiversity hotspot with high levels of endemism. This includes its freshwater fish assemblage. Whereas the current greatest threats to native fish biodiversity are habitat degradation and invasion by non-native species, predicted climate change is likely to further impact fish communities negatively. As a master abiotic variable in aquatic ecosystems; temperature i

APA, Harvard, Vancouver, ISO, and other styles

50

Qongqo, Axola. "Introduction pathways of phytopathogenic fungi and their potential role in limiting plant invasions: the case of Banksia spp. (Proteaceae) in the Cape Floristic Region." Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2859.

Full text

Abstract:

Thesis (Master of Conservation Science)--Cape Peninsula University of Technology, 2018.<br>Introduction pathways of fungal pathogens in South Africa are far less quantified in the literature than those for plants, animals and human infectious diseases. Phytopathogens continue to be introduced to South Africa via several pathways at an unprecedented rate. A number of these species pose a significant threat to South African ecosystems and biodiversity. Despite this, fungal pathogens could also be beneficial when they are used as bio-control agents to control alien invasive plant species. Neverth

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!