Theses and Dissertations
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Browsing Theses and Dissertations by Subject "381.180968257"
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Item Open Access An assessment of coping strategies in the marketing of produce by street vendors(2015-01-30) Munzhelele, R; Chauke, P. K.; Pfumayaramba, T. K.This study was aimed to investigate patterns and causes of changes of terrestrial small mammal species diversity, richness and abundance with increasing elevation in the Soutpanberg Mountains. Capture mark recapture method was conducted at five altitudinal sites ranging from 1000-174 7m above sea level in the southern slopes of the western Soutpansberg. Data on different environmental variables (Microhabitat and climate) were collected. Twelve small mammal species was recorded, of these two species of shrew, nine rodents and one species of Sengi. Three rodent species e.g. Micaelamys namaquensis, Aethomys ineptus and Rhabdomys pumilio were the most abundant species occurring in almost all altitudinal sites. Six models were built to test influence of different environmental variables on small mammal. Akaike's information criterion (AIC) was used to assess the best model that explained variation in species richness, diversity and abundance. Model has shown that variation small mammal species richness and diversity was attributed to rockiness of the area. Small mammal species richness significantly increase with increase in altitude, species diversity also increase with altitude but it was not statistically significant dominance of R. pumilio at high altitude. Rock cover significantly influences the variation of three small mammal species (Rhabdomys pumilio, Aethomys ineptus and Elephantulus myurus). Analysis of variance (ANOVA) was performed to test if there any significant difference of four small mammal (A. ineptus, M namaquensis, R. pumilio and E. myurus) body mass with changes in altitude. Altitude significalty influences variation of A. ineptus body mass but not in way predicted by Bergmanns' Rule. The results have shown that all four small mammals tested did not conform to Bergmann rule.Item Open Access Hedonic price analysis of tomatoes sold by hawkers in the Vhembe District of Limpopo Province, South Africa(2017-05-18) Sigidi, Khumbudzo Zelda; Anim, F. D. K.; Pfumayaramba, T. K.study aimed to determine factors that influenced the price of tomatoes sold by hawkers on the roadside market. The study also aimed at determining whether any socio-economic characteristics of hawkers who sold tomatoes had significant impact on the price paid my consumers. The study was conducted in the Thulamela local municipality under Vhembe District of Limpopo, South Africa. A stratified random sampling technique was used to select participants for this study. A sample size of 198 hawkers were drawn randomly. Structured questionnaires were administered through face-to-face interview. Descriptive statistics, correlation matrix, multiple linear hedonic regression and stepwise linear regression were used to analyse collected data. With regards socio-economic characteristics, only age was found to have significant impact on the market price received by hawkers. Smooth appearance, rough appearance, round shape, oval shape, and red and yellow colour tomatoes had a significant impact on the average market price. It is therefore recommended that attribute such appearances, colour, shapes and sizes of tomatoes should be considered when selling tomatoes at both retail and farm level. This will result in more purchase of tomatoes that will eventually contribute to increase in household income and reduction in poverty.