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Relevant bibliographies by topics / Insects – Ecology – Cape Floristic Region / Dissertations / Theses

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Dissertations / Theses on the topic 'Insects – Ecology – Cape Floristic Region'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

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.

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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

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2

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.

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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

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3

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.

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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

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4

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.

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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

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5

Augustyn, Willem Johannes. "Evolutionary drivers of temporal and spatial host use patterns in restio leafhoppers Cephalelini (Cicadellidae)." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97825.

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Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Understanding how divergent selection results in the evolution of reproductive isolation (i.e. speciation) is an important goal in evolutionary biology. Populations of herbivorous insects using different host plant species can experience divergent selection from multiple selective pressures which can rapidly lead to speciation. Restio leafhoppers are a group of herbivorous insect species occurring within the Cape Floristic Region (CFR) of South Africa. They are specialised on different plant species in the Restionaceae family.

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6

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.

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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

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7

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.

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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

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8

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.

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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

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9

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.

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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

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10

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.

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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

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11

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.

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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

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12

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.

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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

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13

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.

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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

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14

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.

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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

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15

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.

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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

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16

Brand, Mariette Rieks. "The short term impact of a collection of commercial Cape honeybee (Apis mellifera capensis Esch.) colonies on invertebrate flower visitors within a near pristine fynbos habitat in the Cape Floristic Region." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2578.

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Thesis (MScConsEcol (Conservation Ecology and Entomology)--University of Stellenbosch, 2009.<br>Apiculture in the Western Cape is a well-developed industry based on honey production and pollination services to agriculture. Apart from Eucalyptus trees, fynbos vegetation serves well as bee forage to managed honeybee colonies outside the agricultural pollination season. Eucalyptus trees are cleared as invasive plant species while fynbos are rigorously protected as one of the 34 Biodiversity Hotspots identified worldwide. Thus, bee forage is in short supply and is most probably the only limitation

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17

Curran, Helen R. (Helen Rae). "Thecaphora anther-smut fungi : ecology and implications for CFR Oxalis species." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20293.

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Thesis (MSc)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Only a limited number of systems involving anther-smut fungi have been studied, usually due to the economic significance of their crop plant hosts. A smut fungus of the genus Thecaphora has been discovered infecting Oxalis hosts in South Africa. This pathogenic fungus, Thecaphora capensis, produces dark-coloured spores in the anthers of host flowers, rendering it an anther-smut fungus. The host genus is the seventh largest plant genus in the Cape Floristic Region (CFR) and the largest geophytic genus of this region. Nine Oxalis

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