Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 47 for “"Protea"”.
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Small mammal pollination in Protea Witzenbergiana
Protea witzenbergiana possesses some features common to that of therophilous Proteas in the Cape Floristic Region, such as a cup-shaped, downwards-hanging inflorescence surrounded by red involucral bracts, which emits a yeasty, musky odour. The flowering season occurs in the winter and the plants …
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A squeaky suspicion : rodent pollination in Protea nana
The pollination syndrome of Protea nana has been described as uncertain throughout the literature. Floral morphology, presence of pendulous inflorescences
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Flowering in protea : a molecular and physiological study.
Proteas have been extensively cultivated and are grown as floricultural crop plants in many parts of the world, including South Africa. However, the factors that influence the initiation of flowering in Protea have not been identified. From data gathered by the Protea Atlas Project it is evident …
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Voorkoms van vrye aminosure in die genus Protea L
Die vrye aminosuurinhoud van Suider-Afrikaanse proteas het met enkele uitsonderings (Van Staden, 1966) min navorsers se aandag getrek. Die meeste ondersoeke was redelik oppervlakkig en slegs gegrond op papierchromatografie van 'n paar spesies, sodat 'n dieper studie nodig was. Miskien was die …
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The reproductive biology of four geoflorous Protea species (Proteaceae)
… in pollination systems within plant lineages. Protea cordata, P. decurrens, P. scabra and P. subulifolia are cryptic, geoflorous shrubs that are predicted to be pollinated by non-flying mammals based on their floral traits, although there has been no experimental evidence in support of this. …
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Feeding ecology and habitat of the Protea seedeater Serinus leucopterus
… niche (sensu Whittaker et. al. 1973) of the protea seedeater, and an assessment of factors contributing to the ecological segregation between the protea seedeater and its congeners in the south-west Cape biotic zone. No similar study of an African bird has been attempted.
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Seeds to support future growth : (re)establishment of the dormant Protea Village
This thesis addresses and critiques housing delivery processes currently realised by South African national government. It is argued that a major flaw in this process is resultant from the role taken by government as provider rather than facilitator. Government takes pride in the x-amount of new …
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The competitive dynamics of two Protea shrubs growing in a mixed fynbos stand
Patterns of segregation among Protea species were investigated. Interspecific competition was studied as a cause of these patterns. Two different methods were used for measuring competition in a mixed stand of P. lepidocarpodendron and P. corona/a growing on the Cape Peninsula. These were the …
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An evaluation of free amino acids as chemotaxonomic markers in Protea L. species
… morphological and other information. The genus Protea L. was an obvious choice for the initial material of such research as it is one of the best-known and most prominent genera of our indigenous flora and its taxonomic revision, based mainly on morphological data, was recently completed by Dr. …
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Pollen digestion in flower-feeding Scarabaeidae : protea beetles (Cetoniini) and monkey beetles (Hopliini)
Beetles pollinate over 80% of all flowering plants and feed on the two most common floral rewards, nectar and pollen. Pollen is nutritionally very valuable, being a rich protein and carbohydrate source. However, the hard and highly resistant outer wall (exine) of the grain is an obstacle that …
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Rates of shark depredation of line-caught fish on the Protea Banks, KwaZulu-Natal
… shark depredation in the charter boat fishery on Protea Banks, KwaZulu-Natal. Previous estimates based on fisher surveys suggested that shark depredation is a concern locally and may distort fishing mortality estimates. Methods involved quantitative data collection by an onboard observer from …
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Population genetics of South African Protea L. (Proteaceae) species associated with various pollinator guilds
… local adaptive potential. The African genus, Protea, is an ideal study system for exploring the evolution and maintenance of mating systems, because the pollination system for many species have been confirmed by pollinator exclusion experiments. The genus has several pollination systems …
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Hydraulic trait variation in Protea repens with change in climate in space and time
… the hydraulic traits (leaf and xylem anatomy) of Protea repens (L.) across a spatial climatic gradient in the CFR relative to a common garden experiment. I then compare the contemporary trait-climate relationships with a 21 year old xylem anatomy dataset. In the common garden experiment I explore …
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