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Life-history parameters of white stumpnose Rhabdosargus globiceps (Pisces: Sparidae) in Saldanha Bay, South Africa, with evidence of stock separation
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CG Attwood --- Marine Research Institute, Department of Zoology, South Africa TF Næsje --- , Norway L Fairhurst --- , South Africa SE Kerwath --- Marine Research Institute, Department of Zoology, South AfricaWhite stumpnose Rhabdosargus globiceps were sampled over 24 months in Saldanha Bay on the west coast of South Africa. The species is a rudimentary hermaphrodite, with <1% of mature fish having simultaneously developed ovaries and testes. Spawning activity extended from... -
Growth and survival of the South African scallop Pecten sulcicostatus in suspended culture
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DCZ Arendse --- Department of Agriculture, Forestry and Fisheries, South Africa GC Pitcher --- Department of Agriculture, Forestry and Fisheries, South AfricaGrow-out studies of the scallop Pecten sulcicostatus, endemic to the South African coast, contribute to an investigation of the suitability of this species for commercial culture. Hatchery-reared juvenile scallops were placed in a suspended culture system at 5 m depth... -
Dipeptidyl peptidase-4 inhibitors: their role in the management of type 2 diabetes
Item type: Journal Article • Journal: South African Family Practice • Authors: Gail Mkele [AN0001]The production of glucagon-like peptide 1 (GLP-1), an incretin hormone, has been shown to be abnormally low in patients with type 2 diabetes, suggesting that GLP-1 may be a contributor in the pathogenesis of the disease. New type 2 diabetic... -
Dipeptidyl peptidase-4 inhibitors: their role in the management of type 2 diabetes
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Gail Mkele [cor1]The production of glucagon-like peptide 1 (GLP-1), an incretin hormone, has been shown to be abnormally low in patients with type 2 diabetes, suggesting that GLP-1 may be a contributor in the pathogenesis of the disease. New type 2 diabetic... -
Family versus individual plant selection for stem borer (Eldana saccharina) resistance in early stages of sugarcane breeding in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Marvellous Zhou --- South African Sugarcane Research Institute, South Africa Alfred Mokwele --- South African Sugarcane Research Institute, South AfricaEldana saccharina is an indigenous lepidopteran insect pest and the most damaging stem borer of sugarcane in southern Africa. Breeding for E. saccharina resistance in South Africa started in 1980 by crossing resistant parents (expected to possess resistance genes) and... -
Impacts of alien ‘ecosystem engineers’ overwhelm interannual and seasonal shifts in rocky-shore community composition on Marcus Island, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Sadchatheeswaran --- Department of Biological Sciences and Marine Research Institute, South Africa GM Branch --- Department of Biological Sciences and Marine Research Institute, South Africa CL Moloney --- Department of Biological Sciences and Marine Research Institute, South Africa TB Robinson --- Department of Botany and Zoology, South AfricaThe South African coastline has been invaded by numerous alien species. Rare pre-invasion (1980) and post-invasion datasets (2001 and 2012) exist for Marcus Island, a small land-tied island in Saldanha Bay, South Africa. These snapshot datasets of the island’s intertidal... -
Tweeting on COVID-19 pandemic in South Africa: LDA-based topic modelling approach
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Murimo Bethel Mutanga --- , South Africa Abdultaofeek Abayomi --- , South AfricaThe advent of COVID-19 has disrupted all facets of human lives. As of September 2020, there is no effective viral therapy for the disease, thus necessitating research efforts toward providing solutions to the diverse areas where the pandemic has wreaked... -
Sand knobwood Zanthoxylum leprieurii as a keystone resource for birds in Nigeria: insights from observational counts and proximate analysis
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adewale G Awoyemi --- Forest Center, International Institute of Tropical Agriculture, Nigeria Ademola D Ajayi --- Forest Center, International Institute of Tropical Agriculture, Nigeria Olukunle E Olasupo --- Forest Center, International Institute of Tropical Agriculture, Nigeria Olufemi P Olubodun --- Forest Center, International Institute of Tropical Agriculture, Nigeria Taiwo Adams --- Forest Center, International Institute of Tropical Agriculture, Nigeria Mary Oyegbami --- Forest Center, International Institute of Tropical Agriculture, Nigeria Omobamidele A Awoyemi --- Forest Center, International Institute of Tropical Agriculture, NigeriaThis study investigated the importance of sand knobwood Zanthoxylum leprieurii (family Rutaceae) fruits as a food source for birds in the Tree Heritage Park, Ibadan, Nigeria. We conducted focal observations over three years (2018, 2019, and 2024) during peak fruiting...