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Changes in a Doveton clay loam after 12 years of direct-drill maize production
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.B. Mallett --- , Republic of South Africa P.M. Lang --- , Republic of South Africa A.J. Arathoon --- , Republic of South AfricaAfter 8 years of direct-drill maize production at Cedara on a Hutton/Doveton clay loam (Typic Plinthustult) it was found that the top 120-mm layer had become somewhat denser and that organic carbon levels in the top 20 mm were higher... -
Production and physico-chemical properties of surface casts from microchaetid earthworms in central Eastern Cape
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S.A. Materechera --- Faculty of Agriculture, Republic of South Africa O.T. Mandiringana --- Agronomy Department, Republic of South Africa K. Nyamapfene --- , Republic of South AfricaThe study was undertaken to estimate surface cast production by microchaetid earthworms and to compare the physical and chemical properties of the casts with the surrounding non-cast soil. An average of 104 (range 64–132) and 192 (range 182–222) t ha−1... -
A Double Load to Carry: Parasites and Pregnancy
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: J M Tsoka-Gwegweni --- Department of Public Health Medicine, School of Nursing and Public Health College of Health Sciences, N P Ntombela --- Department of Public Health Medicine, School of Nursing and Public Health College of Health Sciences,Pregnancy drains the body physically, physiologically and immunologically. This burden is aggravated when combined with parasite infection. Intestinal parasitic infections in pregnancy have been associated with serious adverse outcomes, both for the mother and the unborn baby. In this article,... -
The effects of different gold mine tailings on growth, reproduction and avoidance-behaviour of earthworms
Item type: Journal Article • Journal: African Zoology • Authors: Bryan McGuirk --- Unit for Environmental Sciences and Management, South Africa Pieter Theron --- Unit for Environmental Sciences and Management, South Africa Mark Maboeta --- Unit for Environmental Sciences and Management, South AfricaThe mining industry plays a key role in the economic development of South Africa as one of the largest exporters of valuable resources, such as gold, platinum group metals and other metals and minerals. Unfortunately, mining produces large volumes of... -
Genetic structure of bloodworm, Arenicola loveni (Annelida; Arenicolidae) suggests risk of local extinction in the face of overexploitation is lower than expected
Item type: Journal Article • Journal: African Zoology • Authors: CA Simon --- , South Africa J Kara --- , South Africa C Naidoo --- , South Africa CA Matthee --- , South AfricaThe bloodworm, Arenicola loveni, is commonly used as bait by fishers and may be vulnerable to local extinction owing to its K-selected life history strategies and overexploitation. Accurate population data that can inform management is, however, outdated, whereas demand for... -
Untangling the Magelonidae (Annelida: Polychaeta) of southern Africa, including the description of a new species
Item type: Journal Article • Journal: African Zoology • Authors: Kate Mortimer --- Amgueddfa Cymru-Museum Wales, United Kingdom Dylan T Clarke --- Iziko Museums of South Africa, South Africa‘A monograph on the Polychaeta of Southern Africa’ by J. H. Day, published in 1967 and covering over 700 species, was considered an essential reference text for marine biologists. Nonetheless, despite the major contribution it has made, we now know... -
Eunicid polychaete worms used as bait with particular reference to Australia, South Africa and France; the need for development of management plans based on their biology and ecology
Item type: Journal Article • Journal: African Zoology • Authors: Pat Hutchings --- Australian Museum Research Institute, Australia Jyothi Kara --- , South Africa Nicolas Lavesque --- CNRS, Université de Bordeaux, Bordeaux INP, EPOC,Worldwide, bait worms are collected for recreational and subsistence fishing, and fetch high prices in bait shops. While a variety of polychaete families are collected, we focus only on the “Marphysa” group (Family Eunicidae) occurring in rivers, estuaries and protected...