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| Registros recuperados: 102 | |
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| Appleton, C.C.; Forbes, A.T.; Demetriades, N.T.. |
| The Asian prosobranch snail Tarebia granifera was reported from South Africa (and Africa) for the first time in 1999 in northern KwaZulu-Natal though it was probably introduced sometime prior to 1996. In the 10 years since its discovery it has spread rapidly, particularly northwards, into Mpumalanga province, the Kruger National Park and Swaziland. The snail has colonized different types of habitat, from rivers, lakes and irrigation canals to concrete lined reservoirs and ornamental ponds. It reaches very high densities, up to 21 000 m-2, and is likely to impact on the entire indigenous benthos of the natural waterbodies of the region – more so than any other invasive freshwater invertebrate known from the country. The indigenous thiarids Thiara amarula,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Tarebia granifera; South Africa; Invasion; Bionomics; 42.73. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/311930 |
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| Visagie, C.M.; Jacobs, K.. |
| During a survey of Penicillium spp. in soils from the diverse fynbos region in the Western Cape, South Africa, a number of previously undescribed species were isolated. Three of these belong to subg. Biverticillium sensu Pitt, recently incorporated into its previously associated teleomorph genus, Talaromyces s.str. These species displayed symmetrical biverticillate penicilli, acerose phialides and poor growth at reduced water activity, typical of this group. Morphological characters of the new species were compared to known Talaromyces species. The ITS and β-tubulin gene regions were used for phylogenetic comparisons, which confirmed the distinct nature of the three fynbos soil species described here as Talaromyces chloroloma sp. nov., T. ptychoconidium... |
| Tipo: Article / Letter to the editor |
Palavras-chave: ITS and β-tubulin phylogeny; Morphology; Penicillium subg. Biverticillium; South Africa; Western Cape. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/531787 |
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| NGUYEN, Thu-Thuy; MOTSIRI, Mono Sophie; TAIOE, Moeti Oriel; MTSHALI, Moses Sibusiso; GOTO, Yasuyuki; KAWAZU, Shin-Ichiro; Molifi THEKISOE, Oriel Matlhahane; INOUE, Noboru; 河津, 信一郎; 井上, 昇. |
| A total of 231 serum samples were collected from sheep (n=9), goats (n=99) and cattle (n=123) in northeastern KwaZulu-Natal, South Africa. Trypanosome infection was detected using Trypanosoma brucei brucei crude antigen (TbbCA) and T. congolense crude antigen (TcoCA) ELISA assays. Recombinant antigen (T. evansi GM6 which consisted of 4 repeat domains, TeGM6-4r) ELISA and immunochromatographic test (ICT) were also used. Crude antigen ELISA, TeGM6-4r-ELISA and ICT detected 27.3%, 29% and 19.9% of trypanosome seropositive samples, respectively. Trypanosome infection prevalence in cattle and goats was 35.8–46.3% and 0–9.1%, respectively. Out of 9 sheep serum samples, 2–4 sera (22.2–44.4%) were positive. The detection performance of crude and recombinant... |
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Palavras-chave: Animal African trypanosomosis; ELISA; Immunochromatographic test; Serodiagnosis; South Africa. |
| Ano: 2015 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4034 |
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| Leliaert, F.; Anderson, R. J.; Bolton, J. J.; Coppejans, E.. |
| The subtidal understorey seaweed communities were studied along a coastal distance of 104 km around the Cape Peninsula, which is situated in an overlap region between two marine provinces and characterized by a considerable temperature gradient. Sampling was carried out at six sites (4 to 10 quadrats per site) around the Cape Peninsula. For each of the quadrats, biomass of each species, grazing, and environmental variables such as temperature, wave exposure and sand cover were determined. The data were analysed using canonical correspondence analysis (CCA) and two way indicator species analysis (TWINSPAN). A total of 142 seaweed taxa were found at the six sites (21 Chlorophyta, 14 Phaeophyta and 107 Rhodophyta). The two sides of the Peninsula have a very... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Check lists Community composition Environmental effects Grazing Kelps Seaweeds Temperature effects Wave forces Waves Waves Algae Chlorophyta [green algae] Phaeophyta Rhodophyta [red algae] PSW; South Africa; Cape Prov.; Cape Peninsula. |
| Ano: 2000 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4596 |
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| Bhat,RB; Moskovitz,G. |
| An investigation of herbal medicinal teas from Western Cape, South Africa was conducted to assess the varieties of herbal teas used to treat various ailments. Each packet of medicinal tea is a blend of carefully selected four or more herbs which are commonly grown in the organic garden in an ancient valley near the southernmost tip of South Africa and some indigenous herbs picked up in the nearby mountains. The teas are specific for the diseased organ/s and also include the herbs to support and strengthen the systems serving the ailing organ/s. The study shows that there are about twenty-one different types of herbal teas, and the packets of 50 g each are sold in South African markets under the trade names of Arthritea, Asthmitea, Constipatea, Detoxtea,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Common ailments; Traditional phytotherapy; South Africa. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572009000100012 |
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| Maroyi,A; Rasethe,MT. |
| Documentation of use patterns of plants across national boundaries is of relevance in understanding the importance of plant resources to livelihood strategies of different ethnic groups. Plant resources have gained prominence as a natural asset through which families derive food, frewood, income, medicines and timber, enabling particularly poor communities to achieve self-suficiency. The objective of this study was to investigate the trends in plant usage in South Africa and Zimbabwe. An ethnobotanical investigation was conducted between January 2012 and January 2013 in the Limpopo Province, South Africa and the Midlands Province, Zimbabwe. The study used questionnaire surveys and interviews with a total of 143 participants to explore plant use patterns in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethnobotany; Plant use; Rural communities; South Africa; Zimbabwe. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200005 |
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| Conradie, Beatrice; Piesse, Jenifer; Thirtle, Colin G.. |
| This paper examines the appropriate level of aggregation for the construction of total factor productivity (TFP) indices. The dataset covers the magisterial districts and statistical regions of the Western Cape for the years 1952 to 2002. Over these five decades agricultural production in the Western Cape grew twice as fast as in the country as a whole but this average masks substantial regional variation. Results show that TFP growth was negative in the Karoo, moderate in the Swartland, Overberg and Southern Cape, and generally above 2% per year in the Boland and Breede River Valleys, where there is extensive irrigation. |
| Tipo: Journal Article |
Palavras-chave: Total factor productivity; Western Cape; South Africa; Agribusiness. |
| Ano: 2009 |
URL: http://purl.umn.edu/49162 |
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| Van Eck, Lisa. |
| This paper investigates social democracy and the “developmental state” model as development alternatives for South Africa. This research is significant as it enhances the developmental debate in South Africa that is indispensable in light of South Africa’s poor socio-economic performance. A comparative-historical study is conducted, as well as an analysis of the socio-political situation in South Africa to determine each model’s compatibility with South Africa. State autonomy is assumed essential. Liberal democracy and the authoritarian “developmental state” model are rejected on theoretical and compatibility grounds. Social democracy is therefore investigated. It is concluded that this model is theoretically stronger, yet ideologically squeezed, and its... |
| Tipo: Journal Article |
Palavras-chave: Social democracy; Developmental state; South Africa; Political Economy; Public Economics. |
| Ano: 2010 |
URL: http://purl.umn.edu/107457 |
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| Abu, Orefi; Kirsten, Johann F.. |
| Abstract This paper investigates the competitiveness of small and medium-scale maize milling enterprises in South Africa from estimates of a translog stochastic cost frontier model. Results suggest that small and medium-scale maize mills in South Africa are cost-inefficient, operating at 59 percent and 30 percent higher cost than the best practice respectively. This implies that, on average, about 59 percent and 30 percent of the costs incurred by small and medium-scale maize mills respectively can be avoided without a reduction in maize meal output. Given this empirical estimates, if small and medium-scale maize milling enterprises in South Africa are able to reduce cost by 59 percent and 30 percent on average respectively, these mills could become... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Maize milling; South Africa; Cost efficiency; Stochastic Frontier Approach; Agribusiness; Agricultural and Food Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/51304 |
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| Cusmano, Lucia; Morrison, Andrea; Rabellotti, Roberta. |
| From a development perspective an investigation of the changes that have occurred in the wine industry is of particular interest because it provides evidence on how emerging economies have been able to acquire significant shares of the international market in a dynamic sector. Based on novel empirical evidence as well as secondary sources, this paper shows that emerging countries with diverse institutional models and innovation strategies, have been driving the process of technological modernization and product standardization. Newcomers in the wine sector have responded particularly effectively to changes in consumption habits, and in aligning emerging scientific approaches with institutional building efforts and successful marketing strategies. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Wine; South Africa; Chile; Italy; Emerging economies; Agribusiness; Institutional and Behavioral Economics. |
| Ano: 2009 |
URL: http://purl.umn.edu/48299 |
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| Registros recuperados: 102 | |
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