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Dissertations / Theses on the topic 'Proteaceae'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Denman, Sandra. "Botryosphaeria diseases of proteaceae." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52721.

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Dissertation (PhD (Agric))--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: Fungi belonging to the genus Botryosphaeria are heterotrophic micromycetes that can be pathogens on woody plants. They cause serious, and in some cases devastating losses to crops through leaf necrosis, stem cankers and plant death. The Proteaceae cut-flower industry in South Africa accounts for 70% of the national cut-flower enterprise. Botryosphaeria diseases are a major impediment to production and trade of Proteaceae and there is an urgent need to investigate the etiology, epidemiology and control of t

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2

Schmeisser, Michael. "Anthocyanins in selected Proteaceae." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52685.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: Trials were conducted to follow colour development during the growth season of the commercial Leucadendron cultivar 'Siivan' Red', as well as the Protea cultivars 'Ivy', 'Carnival' and 'Sylvia'. HPLC analysis showed that pigments responsible for red colour in Leucadendron and Protea cultivars are anthocyanins. Initial extraction of anthocyan ins from freeze-dried and finely ground Leucadendron leaves, using 5% formic acid in methanol, resulted in the precipitation of gel-like compounds, making the extracts impossi

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3

Lubbe, Carolien M. "Colletotrichum diseases of Proteaceae." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/53732.

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Thesis (MSc)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: This thesis consists of four chapters that present research findings on Colletotrichum diseases associated with Proteaceae worldwide. The first chapter is a review of literature regarding the taxonomy and histology of Colletotrichum species associated with Proteaceae. The literature is not restricted to Proteaceae hosts, as information regarding Colletotrichum on Proteaceae is very limited. In chapter two, Colletotrichum spp. associated with proteaceous hosts growing in various parts of the world were identified based on m

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4

Matthews, Merran Lisa. "Breeding systems and pistil structure in the family proteaceae." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phm441.pdf.

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Bibliography: leaves 173-184. This study aimed to broaden understanding of breeding systems in Australian Proteaceae and to study the optimum requirements for promotion of seed germination in two lesser researched genera with horticultural potential, Dryandra quercifolia and Dryandra formosa. The timing and pattern of stigma receptivity was determined using a combination of techniques. Findings can be used to breed and improve these species for further commercialisation in cut flower and garden industries. The study of pistil structure further identified the potential of this structure to affe

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5

Rhode, Adele. "Studies on fertility and crossability of species in the genus Leucadendron." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50110.

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Thesis (MScAgric)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: The exomorphology and size of Leucadendron pollen was examined using a scanning electron and light microscope respectively. Pollen was found to have a consistent triangular shape with three apertures. Pollen grain size however, show difference between species, sections and subsections on Leucadendron. Pollen of all species examined had a woven appearance like the intertwined threads of a fabric with orbicules present on the surface of L. chamelaea, L. elimense subsp. elimense and L. galpinii. Pollen viability was

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6

Moodley, Desika. "Determinants of introduction and invasion success for Proteaceae." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/79851.

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Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Successful biological invasions take place when species introduced to regions outside their natural dispersal range overcome several barriers and establish, persist, proliferate and spread potentially resulting in major threats to biodiversity. The success of invasive alien plants depends on species-specific traits and characteristics of the introduced environment. In this thesis I explore which species traits are important and which environmental barriers need to be overcome for an invasion to occur using Proteaceae as a test c

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7

Itzstein-Davey, Freea. "Changes in the abundance and diversity of the Proteaceae over the Cainozoic in south-western Australia." University of Western Australia. School of Earth and Geographical Sciences, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0040.

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South-western Australia is a globally significant hotspot of plant species diversity, with high endemism and many rare plant species. Proteaceae is a major component of the south-western flora, though little is known about how its diversity developed. This prompted the present study to investigate changes in the abundance and diversity of Proteaceae, in south-western Australia, by concurrently studying three sediment sequences of different ages over the Cainozoic and a modern pollen rain study. Modern pollen-vegetation relationships in the two Proteaceae species rich nodes of the northern and

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8

Catling, Dorothy Margaret. "The systematic anatomy of Grevilleeae and Persooniinae (Proteaceae)." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5354/.

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The anatomy of leaves was described for 91 species In the Grevilleeae and 15 species in the Persooniinae. The anatomy of the stem-node-leaf continuum was described for 57 species in the Grevilleeae and 6 species in the Persooniinae. Anatomical features were discussed in the context of taxonomic relationships in genera and, briefly, at higher levels. In Hakea, anatomical data supported the groupings proposed by taxonomists. In Grevillea, recognised natural groups were supported and anatomical features were useful in demonstrating homologies in the leaves of some Groups. In Persoonia anatomy sup

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9

Mustart, Penny. "Seed and seedling ecology of four Agulhas Proteaceae." Doctoral thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/9671.

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Includes bibliographical references<br>Serotinous (canopy-stored seed) Proteaceae, Protea obtusifolia and Leucadendron meridianum occur on shallow, alkaline soils overlying limestone, and P.susannae and L.coniferum on adjacent, deep, weakly acidic sands, in fire-prone fynbos. Seed reciprocal transplants were used to test whether regeneration niche requirements were determinants of adult distributions. There were no germination niche differences, but limestone species showed greater seedling mortality on the transplanted colluvial sands than limestone. There were also greater relative growth ra

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10

Van, Leeuwen Stephen J. "Reproductive biology and mating system of Banksia tricuspis (Proteaceae)." Curtin University of Technology, School of Environmental Biology, 1997. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=10994.

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An understanding of the role of genetic and ecological factors that influence demographic change is paramount for the conservation of plant populations. These genetic and ecological factors often act in concert to influence reproductive success and thus the ability of a species to maintain its presence in the community. Paramount among the array of factors influencing a species' fitness are mating system considerations and their interaction with ecological processes. Both mating systems and ecological processes are influenced by intrinsic and extrinsic forces that may operate synergistically t

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11

Gibson, Stephen. "Seed morphology and colour variation in derotinous Cape Proteaceae." Bachelor's thesis, University of Cape Town, 1999. http://hdl.handle.net/11427/23625.

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I investigated seed colour polymorphism in Leucadendron is investigated for the possibility of crypsis in a post fire environment. Results were inconclusive, possibly due to a missed opportunity, but do not exclude the possibility of crypsis. Seed predation by birds may be an as yet undescribed and significant phenomenon. Seed morphology and its impact on second phase dispersal is little known, except in a few cases. This was investigated in a comparison of hairy brown Protea and black winged Leucadendron seeds. This showed that these two types of seed tend to germinate in different habitats.

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12

Zoeller, Kim Christie. "The reproductive biology of four geoflorous Protea species (Proteaceae)." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13255.

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Includes bibliographical references.<br>Pollination systems of previously unstudied plant species are often inferred from floral traits that are shared among unrelated plant taxa. However, these ‘pollination syndromes’ are often not reliable predictors of the primary pollinator of a plant species, and may in fact represent adaptations to multiple pollinator groups or even minor pollinators. As such, conducting comprehensive field-based research into the pollination and breeding system of unstudied plant species is important for furthering our understanding of evolutionary processes underlying

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13

van, Leeuwen Stephen J. "Reproductive biology and mating system of Banksia tricuspis (Proteaceae)." Thesis, Curtin University, 1997. http://hdl.handle.net/20.500.11937/639.

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An understanding of the role of genetic and ecological factors that influence demographic change is paramount for the conservation of plant populations. These genetic and ecological factors often act in concert to influence reproductive success and thus the ability of a species to maintain its presence in the community. Paramount among the array of factors influencing a species' fitness are mating system considerations and their interaction with ecological processes. Both mating systems and ecological processes are influenced by intrinsic and extrinsic forces that may operate synergistically t

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14

Maguire, Tina Louise. "Genetic diversity and interspecific relationships in Banksia L.f., (Proteaceae)." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phm2132.pdf.

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Copy of author's previously presented paper inserted. Bibliography: leaves 187-218. This thesis aims to increase knowledge essential for conservation biology and for focused and efficient breeding of banksias. Interspecific hybridisation is assessed as a potential breeding tool, and for the assessment of species relationships within the genus. Species relationships within Banksia are also assessed using molecular techniques. Random amplified polymorphic DNA (RAPD) markers are assessed for their usefulness at various taxonomic levels within the genus. The results indicate a close relationship b

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15

McKenna, David J. "Demographic and ecological indicators of rarity in a suite of obligate-seeding Persoonia (Proteaceae) shrubs." Access electronically, 2007. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20080131.142010/index.html.

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16

Starr, Gary. "Population genetics of Hakea carinata F. Muell. ex Meissner (Proteaceae)." Title page, table of contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phs796.pdf.

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17

Parks, Sophie Emma, University of Western Sydney, and Faculty of Science and Technology. "Proteaceae nutrition and the phosphorus requirements of Banksia ericifolia L.f." THESIS_FST_xxx_Park_S.xml, 2000. http://handle.uws.edu.au:8081/1959.7/103.

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The basic mineral nutritional requirements of Proteaceae are not well understood.They are generally assumed to require low levels of nutrients and be susceptible to nutrient (especially Phosphorus) toxicity.This project aimed to estimate the general nutritional requirements of Proteaceae for optimum growth, with special emphasis on the Phosphorus requirement. Potted plants were grown in soilless growth media with controlled release fertiliser and were watered according to need in a naturally lit greenhouse. The nutrient requirements of Proteaceae were found to vary among species but were not l

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Parks, Sophie Emma. "Proteaceae nutrition and the phosphorus requirements of Banksia ericifolia L.f. /." View thesis View thesis, 2000. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030429.105120/index.html.

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Thesis (Ph.D.) -- University of Western Sydney, 2000.<br>"A thesis submitted in fulfilment of the requirement for the degree of Doctor of Philosophy, Horticulture, University of Western Sydney, Australia, December 2000" Bibliography : leaves 206-230.

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Cowan, Oliver. "Co-occurrence and phenological niche separation in rodent pollinated Proteaceae." Bachelor's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/24855.

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Despite the numerous studies regarding rodent pollination in the Cape Floristic Region in the last few decades, little or no work has been done on patterns of co-occurrence and flowering phenology. The presence of three potentially rodent-pollinated Protea species at Fernkloof Nature Reserve, two of which were observed to co-occur, facilitated the following questions: i) are P. cordata, P. scabra and P. angustata therophilous? ii) do therophilous species co-exist at a fine scale? iii) do they have the same pollinator? iv) do they exhibit staggered flowering phenology? The floral characteristic

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20

Manuel, Theodore Llewellyn. "Effect of soil nutrient status on stress tolerance in Proteaceae." Bachelor's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/25615.

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Protea lepidocarpodendron grown on low, medium and high nutrient treatments exhibited the lowest, and similar evapotanspiration rates respectively over a 9 day water stress cycle (experimental period). In stressed and unstressed treatments, stomatal conductance and transpiration rates of plants grown on the low nutrient treatment was generally lower than that of plants grown on the medium and high nutrient treatments where stomatal conductance and transpiration rates were similar. Stressed plants grown on the low, medium and high nutrient treatments exhibited the lowest, intermediate and highe

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El-Ahmir, Sh-Hoob Mohamed. "Function, Ecology and Evolution of Seed Size in Hakea (Proteaceae)." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/2384.

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This study investigated function, ecology and evolution of variation in seed size in Hakea (Proteaceae). I first revealed that the evolution of seed size is phylogenetically constrained. Using a series of glasshouse experiments, I further demonstrated that small-seeded Hakea species gain fitness advantage in environment with dry summer through rapid germination, early seedling emergence, and early true leaves emergence; small-seeded Hakea species are also better to tolerate herbivore predation than large-seeded congeners.

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22

Gerber, Audrey I. (Audrey Inga). "Effect of pruning on economic biomass production of Protea cv. Carnival." Thesis, Stellenbosch : Stellenbosch University, 1994. http://hdl.handle.net/10019.1/58407.

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Thesis (MScAgric)--Stellenbosch University, 1994.<br>Some digitised pages may appear illegible due to the condition of the Microfiche<br>ENGLISH ABSTRACT: Many Proreaceae species indigenous to South Africa have potential as cutflower crops. Commercial production of proteas for expurt, mainly to Europe, must emphasise quality of flowers and time of production. Good export quality flowers have stems longer than 50cm and unblemished flowers. Cut-flower proteas are in greater demand and command better prices during the European winter (September to May, Southern hemisphere), when competition

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Coetzee, J. H. (Jacobus Hendrik). "Arthropod communities of Proteaceae with special emphasis on plant-insect interactions." Thesis, Stellenbosch : Stellenbosch University, 1989. http://hdl.handle.net/10019.1/66615.

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Thesis (PhD) -- Stellenbosch University, 1989.<br>ENGLISH ABSTRACT: Arthropod communities of five proteaceous species viz. Protea repens. P. neriifolia. P.cynaroides, Leucospermum cordifolium and Leucadendron /aureolum were studied. A faunal list of the insects was compiled according to the feeding guilds of insects. Six phytophagous guilds were recognized: flower visitors, thrips, endophages, ectophages, sap-suckers, and ants. The guild composition, species packing and seasonal distribution for the free-IMng insects, spiders and other arthropods were investigated on the different plant

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Bergh, Nicola G. "Comparative water relations of indigenous and invasive Australian Proteaceae in fynbos." Bachelor's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/26049.

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Water-use efficiency (WUE) as reflected in the leaf carbon stable isotope ratio was compared between co-occurring indigenous fynbos proteoids and invasive Australian hakeas H. sericea, H. gibbosa and H. suaveolens. At the driest site, H. suaveolens was slightly more WUE than several co-occurring proteoids; there was no significant difference between hakeas and proteas at the other sites. Transpiration rates of shoots and of whole trees were compared between Hakea sericea and Protea repens growing on Stellenboschberg northeast of Cape Town. Both measurements showed no real difference between th

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Roets, Francois. "Diversity and ecology of ophiostomatoid fungi and arthropods associated with proteaceae infructescences." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52807.

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Thesis (MSc)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: Five new species of ophiostomatoid fungi, colon ising the infructescences of serotinous Protea species, have recently been discovered in South Africa. Prior to this, ophostomatoid fungi were thought to be restricted to the Northern Hemisphere. The discovery of these five species thus extensively expanded the known geographical range of these fungi, now also to include the Southern Hemisphere. Since this discovery, few studies have focused on the interesting ecology of this group, which is uniquely adapted for spore dis

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Sasa, Archbold. "Arthropods associated with commercial Proteaceae in the Western Cape Province, South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6805.

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Thesis (MSc)--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: The commercial cultivation of Proteaceae is an important industry in the Western Cape, however, farmers are challenged with arthropod infestation which compels them to solely rely on chemical pesticides. Past studies in South Africa have shown that Proteaceae comprise a rich and diverse arthropod fauna. However, as most of these studies were conducted on wild Proteaceae, they may not be representative of cultivated proteas. Moreover, most of these species remained unidentified due to lack of identification expertise. Th

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Ellis, Jacqueline A. "Nitrogen utilization in the South African fynbos shrub, Protea neriifolia R.BR. (Proteaceae)." Thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/26461.

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28

Slingsby, Jasper. "Branch junction constriction and hydraulic limitation in two species in the Cape Proteaceae : a mechanism explaining the trade-off between longevity and degree of ramification in the Cape Proteaceae." Bachelor's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/26047.

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The purpose of this study was to establish if hydraulic limitation and branch junction constriction explain the trade-off between longevity and increased ramification in species of the Cape Proteaceae. This was done by establishing if branch nodes are regions of greater resistance to xylem sap flow in the study species; attempting to quantify nodal resistance for a plant as a whole; and by determining if there is any evidence for hydraulic limitation or compensation in Leucadendron laureolum (Lam.) Fourc. and Leucospermum oleifolium (Berg.) R. Br. individuals. The extent of branch junction con

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Matlhoahela, Patience Tshegohatso. "Mineral nutrition of cultivated South African proteaceace." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/1106.

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Cronin, Kate. "A long-term record of the physiological plasticity of stomatal condactance in Proteaceae." Bachelor's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/14120.

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Bioclimatic models suggest that Protea species are likely to be severely affected by predicted increases in temperature and reductions in rainfall in the Western Cape. However, throughout their 400 million year history, land plants have been exposed to considerable climatic variations that have driven physiological adaptations promoting long-term resilience. A principal response of plants to increases in atmospheric CO2 concentration and changing rainfall regimes is to minimise water loss by reducing stomatal conductance (gs) and simultaneously increasing intrinsic water-use efficiency (iWUE).

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Lloyd, Samantha M. "The pollination ecology and reproductive success of the Australian shrub Grevillea macleayana." Access electronically, 2006. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20070322.163537/index.html.

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Pharmawati, Made. "DNA-based approaches for development of markers to assist Grevillea and Leucadendron breeding." University of Western Australia. School of Plant Biology, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0110.

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[Truncated abstract] Grevillea and Leucadendron belong to Proteaceae and both have economic importance to the floriculture industry. Grevillea is a highly diverse genus endemic to Australia and very attractive for landscaping. Leucadendron is a South African Proteaceae but is cultivated in Australia and is well known as a cut flower. This thesis focuses on the application of DNA-based molecular markers to these genera. Several groupings within Grevillea were suggested by previous researchers based on morphological characteristics. In this thesis the monophyly of the groupings among 12 Greville

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Erckie, Laimi Nelago Koskima. "Impacts and control of alien Proteaceae invasion in the Western Cape Province, South Africa." University of the Western Cape, 2017. http://hdl.handle.net/11394/6207.

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Magister Scientiae (Biodiversity and Conservation Biology) - MSc (Biodiv & Cons Biol)<br>Research focused on ecological impacts and control of invasive alien species (IAS) is gaining attention worldwide. The eradication and control of invasive alien plants (IAP) is essential for the restoration of native plant communities. Understanding ecological impacts and potential invasive risks of IAP is important for their effective management, particularly for prioritisation. Most studies concerning impacts on vegetation structure and plant-pollinator interactions have measured few ecological metrics,

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Brown, Susan Ann. "Ecological correlates of rare Cape Proteaceae, South Africa, and the implications for their conservation." Master's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/18485.

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This thesis examines the ecology of rare Proteaceae of the Fynbos Biome. South Africa. The aim was to determine whether there are any unifying ecological parameters which might be significant for their conservation. The current status of all Cape Proteaceae was initially assessed. A total of 124 taxa were ascribed the I U C N status of recently extinct (3 taxa), endangered (33 taxa), vulnerable (29 taxa) and naturally rare (59 taxa). The distributions of rare taxa are characteristically small in size and range, 59 taxa occurring in only one or two populations and 63 taxa being restricted to a

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Smith, Megan. "Population genetics of South African Protea L. (Proteaceae) species associated with various pollinator guilds." Master's thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31267.

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South Africa hosts plant species with a large variety of floral traits associated with different pollinator guilds. Suites of specialised floral traits associated with particular pollinators are known as pollination systems or syndromes. However, it is often uncertain how these pollination systems affect gene flow between plant populations, mating system outcome, and subsequent genetic health of plant species. Genetic variability is an important aspect in understanding the long-term survival of a species because excessive homozygosity, as a result of high amounts of inbreeding, may restrict a

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Hunter, Roland. "The secretion of acid phosphatase by proteaceae as an adaptation to limited phosphate availability." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/12173.

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Includes abstract.<br>Includes bibliographical references (leaves 59-67).<br>The Proteaceae are a distinctive component of South Africa’s Fynbos and Australia’s Kwongan vegetation and display a number of adaptations to the soils of these nutrientpoor regions, where availability of phosphate (P) is particularly limited. The Proteaceae are notable for the virtually family-wide ability to form cluster roots.

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Heliyanto, Bambang. "The ecological genetic consequences of local endemism and natural population fragmentation in Banksia ilicifolia (Proteaceae)." University of Western Australia. School of Plant Biology, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0123.

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[Truncated abstract] The species-rich Southwest Australian Floristic Region (SAFR) is a global biodiversity hotspot. Characterised by a Mediterranean-type climate and nutrient deficient landscape, this region is endowed with 7380 native vascular plant species/sub species, of which 49% are endemic and 2500 are of conservation concern. Despite the global significance of this region, there is still only a poor understanding of the factors influencing high diversity and endemism, and especially the population genetic consequences of narrow endemism and naturally fragmented species distribution. Ho

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Oliveira, Laura Braga de. "Diversidade e Fenologia de lagartas folívoras em Roupala montana (Proteaceae) no cerrado do Brasil Central." reponame:Repositório Institucional da UnB, 2010. http://repositorio.unb.br/handle/10482/7416.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Biológicas, Programa de Pós-Graduação em Biologia Animal, 2010.<br>Submitted by Jaqueline Ferreira de Souza (jaquefs.braz@gmail.com) on 2011-04-16T15:25:32Z No. of bitstreams: 1 2010_LauraBragadeOliveira.pdf: 11712503 bytes, checksum: 519fc5f8343f2d173bd66b7e00718ab9 (MD5)<br>Approved for entry into archive by Jaqueline Ferreira de Souza(jaquefs.braz@gmail.com) on 2011-04-16T19:10:08Z (GMT) No. of bitstreams: 1 2010_LauraBragadeOliveira.pdf: 11712503 bytes, checksum: 519fc5f8343f2d173bd66b7e00718ab9 (MD5)<br>Made available

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Connolly, Alexandra. "Crypsis in non-flying mammal pollinated Proteaceae: novel adaptations and evidence of nectarivorous bird avoidance." Master's thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31394.

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A defining feature of the non-flying mammal pollinated (NMP) syndrome is inflorescence crypsis whereby flowers are close to the ground and somewhat hidden within the canopy. A number of species in the Cape Proteaceae are NMP, two of which were chosen as focal species for this study: Protea amplexicaulis and Protea humiflora. This study investigated the two previously suggested hypotheses for crypsis: hidden flowers are more difficult for nectarivorous birds to access, or hidden flowers provide greater cover for small mammal pollinators from aerial predators. Using remote triggered cameras, P.

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Hepburn, Colleen. "The phenologies of macadamia (Proteaceae) and thrips (Insecta: Thysanoptera) communities in Mpumalanga Province, South Africa." Thesis, Rhodes University, 2017. http://hdl.handle.net/10962/6817.

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Macadamia (Proteaceae) is indigenous to Australia; four of the nine species have been used in plant breeding for cultivation and the production of a rapidly growing product. First introduced to Hawaii in the 1880s, macadamias’ potential as a crop was only really considered in 1910. It is due to the early Hawaiian pioneers’ research and the development of Hawaiian cultivars upon which most of the current world’s production is based today. Prior to the 1980s, cultivation in Australia was based mainly on Hawaiian cultivars. Extensive research has been conducted on cultivar development, performanc

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Yang, Fan. "Chemotaxonomy Study of Plants from the Family Proteaceae Based on Its Natural Product Profile (Alkaloid)." Thesis, Griffith University, 2017. http://hdl.handle.net/10072/367627.

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The Proteaceae is a flowering plant family containing approximately 1700 species across more than 80 genera and is a predominant feature of Australian and South African flora. The chemistry of plants from the family has been studied by researchers for over a century but these studies have neither been systematic nor extensive. The research carried out in this thesis has firstly systematically reviewed and synthesized the current state of knowledge with regard to the natural products chemistry of the Proteaceae in relation to taxonomic groupings derived from molecular and morphometric phylogene

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Richardson, David Mark. "The ecology of invasions by Pinus (pinaceae) and Hakea (proteaceae) species, with special emphasis on patterns, processes and consequences of invasion in mountain fynbos of the southwestern Cape Province, South Africa." Doctoral thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/18803.

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The fire-prone mountain fynbos of the southwestern Cape Province of South Africa has been severely invaded by introduced trees and shrubs. These invasions have transformed fynbos shrublands to dense thickets of trees and shrubs in many parts of the region, thus disrupting various natural ecosystem processes. The ecology of invasions by species of Pinus and Hakea (the most successful genera) was studied using a series of natural experiments in conjunction with autecological studies. The study was divided into main four parts: (i) case studies to elucidate major patterns and processes of invasio

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De, Villiers Margaret J. (Margaret Jenifer). "Molecular systematics of the Western Cape genus Serruria Salisb. (Proteaceae L.) based on DNA sequence data." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50030.

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Thesis (MSc)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: The Cape Floristic Region (CFR) is situated at the southern tip of Africa and possesses a flora that is unique amongst the floras of the rest of the world, both in terms of its incredibly high species richness, and its high levels of endemism. Proteaceae, the family to which Serruria belongs, is widely distributed amongst the landmasses of the southern hemisphere, with its centres of diversity occurring in Australia and southern Africa. Previous molecular and morphological analyses performed on the South African subfami

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Jono, Viviane Yuri. "Anatomia ecológica do lenho e atividade cambial de Roupala rhombifolia (Proteaceae) na Serra do Cipó (MG)." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/41/41132/tde-13072009-113356/.

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Nas regiões tropicais, em contraponto com regiões temperadas, as variações ambientais são mais amenas e por anos foi considerado que as espécies tropicais apresentavam crescimento contínuo. Entretanto, as variações ambientais podem ocorrer em grande e pequena escalas, sendo possível que a mesma espécie responda diferentemente aos variados estímulos. Por isso, objetivou-se analisar o comportamento de crescimento de Roupala rhombifolia através do estudo da fenologia, atividade do câmbio e mudanças nas características do lenho em função das características ambientais em pequena escala, com ênfase

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Guthrie, Iain. "Parent density, time of fire and flower harvesting as determinants of size of fynbos Proteaceae populations." Thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/26125.

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Rogers, Annabelle J. "Occult moisture inputs in the fynbos : Foliar moisure uptake in Ericaceae, Restionaceae and Proteaceae / Annabelle J. Rogers." Bachelor's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/14026.

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'Occult' precipitation may be an important moisture source that can impact specific plant responses to water stress in certain ecosystems. Species in many ecosystems have been shown to use this moisture source via foliar moisture uptake. The Cape Peninsula and the surrounding southern coast experience high altitude mountain cloud cover in the summer dry period. Previous work on species that exist exclusively in the cloud belt found that species from the Erica and Restionaceae family were able to absorb water through their leaf surfaces, while members of the Proteaceae were unable to do so (Gib

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Midgley, Jeremy John. "Aspects of the evolutionary biology of the proteaceae, with emphasis on the genus Leucadendron and its phylogeny." Doctoral thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/22503.

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This thesis has been written up as a series of stand alone chapters, in the form that they have, or are to be, submitted for publication. Therefore there is a degree of repetition. Because the scale of my investigation has been fairly broad and crude, and because the genus is so large, I have mainly used frequency data. I have analysed this data with the G-test, which is a suitable statistical technique for such data (Sokal and Rohlf 1969).

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Monaco, Sophie. "Seed dispersal, herbivory and recruitment failure of Persoonia elliptica (Proteaceae) in Western Australian Jarrah (Eucalyptus marginata) forest." Thesis, Monaco, Sophie (2012) Seed dispersal, herbivory and recruitment failure of Persoonia elliptica (Proteaceae) in Western Australian Jarrah (Eucalyptus marginata) forest. Honours thesis, Murdoch University, 2012. https://researchrepository.murdoch.edu.au/id/eprint/15075/.

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Persoonia elliptica is a resprouting understorey tree species of the jarrah (Eucalyptus marginata) forests of South-Western Australia. All known populations are lacking in seedlings and saplings, resulting in population structures made up solely of mature trees and exhibiting clear recruitment failure. Little research has been done on this species other than a single study by Abbott and Van Heurck (1988) which described population structures and speculated that increased kangaroo herbivory might be the cause of recruitment failure. This study addresses the issue of recruitment failure, in part

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Reyes, Elisabeth. "Evolutionary history of floral key innovations in angiosperms." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS489/document.

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Les Angiospermes forment un clade connu pour sa grande diversité d’espèces et une répartition inégale de cette diversité en son sein. Ce travail se concentre sur la reconstruction d’états ancestraux de caractères floraux sur les phylogénies dans le but d’étudier leur impact sur la diversification. En premier lieu, nous nous sommes focalisés sur deux innovations-clés potentielles chez les Proteaceae, la symétrie bilatérale du périanthe et la présence dans les hotspots à climat méditerranéen. L’utilisation sur une phylogénie de modèles de diversification dépendants des états de caractère a permi

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Sarmento, Cabral Juliano. "Demographic processes determining the range dynamics of plant species, and their consequences for biodiversity maintenance in the face of environmental change." Phd thesis, Universität Potsdam, 2009. http://opus.kobv.de/ubp/volltexte/2010/4118/.

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The present thesis aims to introduce process-based model for species range dynamics that can be fitted to abundance data. For this purpose, the well-studied Proteaceae species of the South African Cape Floristic Region (CFR) offer a great data set to fit process-based models. These species are subject to wildflower harvesting and environmental threats like habitat loss and climate change. The general introduction of this thesis presents shortly the available models for species distribution modelling. Subsequently, it presents the feasibility of process-based modelling. Finally, it introduces t

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