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Etiolation aids rooting of Protea cynaroides cuttings
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.C. Wu --- Department of Plant Production and Soil Science, Faculty of Natural and Agricultural Sciences, South Africa E.S. du Toit --- Department of Plant Production and Soil Science, Faculty of Natural and Agricultural Sciences, South Africa C.F. Reinhardt --- Department of Plant Production and Soil Science, Faculty of Natural and Agricultural Sciences, South AfricaThe role that starch content and blanching play in the rooting of Protea cynaroides cuttings was studied. P. cynaroides stems were blanched on the motherplant in the field, which resulted in a higher starch concentration in the cuttings. The relationship... -
Why are Myrmecochorous Plants Limited to Fynbos (Macchia) Vegetation Types?
Item type: Journal Article • Journal: South African Forestry Journal • Authors: G.J. Breytenbach --- Saasveld Forestry Research Centre,Myrmecochorous plants (plants with seeds dispersed by ants) are virtually absent from all non-fynbos vegetation types. In this study It IS shown that, contrary to previous findings, ants in non-fynbos vegetation types do find elaiosome bearing seed and bury them... -
Insulin resistance induced by antiretroviral drugs: Current understanding of molecular mechanisms
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: WIW Ismail --- Division of Chemical Pathology, Department of Clinical Laboratory Sciences, JA King --- Division of Chemical Pathology, Department of Clinical Laboratory Sciences, TS Pillay --- Division of Chemical Pathology, Department of Clinical Laboratory Sciences,The increase in incidence of HIV infection continues to be a major public health problem across the world, but more especially in sub-Saharan Africa. Treatment with highly active antiretroviral therapy (HAART) has improved the prognosis of patients with AIDS, but... -
Aspects of the ecology and morphology of the protea seedeater, Crithagra leucopterus, a little-known Fynbos endemic
Item type: Journal Article • Journal: African Zoology • Authors: Alan T.K. Lee --- Climate Change Adaptation Division, South African National Biodiversity Institute, South Africa Phoebe Barnard --- Climate Change Adaptation Division, South African National Biodiversity Institute, South AfricaThe protea seedeater, Crithagra leucopterus, is one of six passerine birds endemic to the Fynbos Biome, South Africa. It is the least known of these, and there is very little information on breeding and habitat use. Through nest observations and... -
Relative merits of using purified proteins and natural foods in studies of wildlife nutrition: the nitrogen requirements of a rodent pollinator
Item type: Journal Article • Journal: African Zoology • Authors: Ian G. Van Tets --- Department of Zoology, South Africa Ken Hutchings --- Department of Zoology, South Africa Susan Nicolson --- Department of Zoology, South AfricaAethomys namaquensis is a 60 g murid rodent that is an important pollinator of several Protea species in South Africa. We compared the nitrogen requirements of this species on two different protein sources: pollen and casein. Pollen is an important... -
Opportunistic breeding in the Cape spiny mouse (Acomys subspinosus)
Item type: Journal Article • Journal: African Zoology • Authors: P.A. Fleming [AN0001] S.W Nicolson --- Department of Zoology and Entomology, South AfricaThe relationship between Protea humiflora and its small mammal pollinators was investigated at the fynbos/karoo ecotone in the Riviersonderend Mountains, South Africa. Acomys subspinosus occurred in low densities at Jonaskop, with around 3.9 ± 2.0 (mean ± 1 S.D.) individuals/ha... -
Fire and the persistence, decline and extirpation of Protea roupelliae subsp. roupelliae trees in a montane grassland
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: François R Smith --- , South Africa Timothy G O’Connor --- , South Africa James E Granger --- , South Africa Angela J Beaumont --- , South AfricaWe investigated long-term changes, from 1979 to 2015, in the abundance of Protea roupelliae subsp. roupelliae trees growing in a montane grassland of the uKhahlamba-Drakensberg mountains. The study involved counting the numbers of adults and juveniles (saplings and seedlings) in...