Pollinators, Predators and Parasites. The Ecological Roles of Insects in Southern Africa. ClarkeScholtz, JennyScholtz and HenniedeKlerk. Struik Nature (Penguin Random House South Africa), Cape Town. 2021. pp 448. ISBN (print) 978‐1‐77584‐5553 (hardback, RRP R590), (ePub) 978‐1‐77584‐6321 (eBook, RRP R399).

2021 ◽  
Author(s):  
Tim R New
2014 ◽  
Vol 14 (2) ◽  
pp. 559-575 ◽  
Author(s):  
B. J. Abiodun ◽  
A. M. Ojumu ◽  
S. Jenner ◽  
T. V. Ojumu

Abstract. Cape Town, the most popular tourist city in Africa, usually experiences air pollution with unpleasant odour in winter. Previous studies have associated the pollution with local emission of pollutants within the city. The present study examines the transport of atmospheric pollutants (NOx and HNO3) over South Africa and shows how the transport of pollutants from the Mpumalanga Highveld, a major South African industrial area, may contribute to the pollution in Cape Town. The study analysed observation data (2001–2008) from the Cape Town air-quality network and simulation data (2001–2004) from a regional climate model (RegCM) over southern Africa. The simulation accounts for the influence of complex topography, atmospheric conditions, and atmospheric chemistry on emission and transport of pollutants over southern Africa. Flux budget analysis was used to examine whether Cape Town is a source or sink for NOx and HNO3 during the extreme pollution events. The results show that extreme pollution events in Cape Town are associated with the lower level (surface – 850 hPa) transport of NOx from the Mpumalanga Highveld to Cape Town, and with a tongue of high concentration of HNO3 that extends from the Mpumalanga Highveld to Cape Town along the south coast of South Africa. The prevailing atmospheric conditions during the extreme pollution events feature an upper-level (700 hPa) anticyclone over South Africa and a lower-level col over Cape Town. The anticyclone induces a strong subsidence motion, which prevents vertical mixing of the pollutants and caps high concentration of pollutants close to the surface as they are transported from the Mpumalanga Highveld toward Cape Town. The col accumulates the pollutants over the city. This study shows that Cape Town can be a sink for the NOx and HNO3 during extreme pollution events and suggests that the accumulation of pollutants transported from other areas (e.g. the Mpumalanga Highveld) may contribute to the air pollution in Cape Town.


2021 ◽  
pp. 166-193
Author(s):  
Mark Lawrence Schrad

Chapter 6 examines the history of Britain’s colonization of South Africa as a clash between imperialists like Cecil Rhodes—who wielded liquor as a tool to get indigenous leaders drunk and sign away rights to their land—and native African tribal leaders. Rhodes’s greatest obstacle in his planned Cape Town–to-Cairo railroad were the prohibitionist leaders of Bechuanaland (present-day Botswana)—King Khama, Sebele I, and Bathoen—who in 1895 went so far as to travel to England to plead to Queen Victoria and the Colonial Office to maintain their sovereignty against white incursions and their prohibition against white liquor. Harnessing British temperance networks and building goodwill, the Bechuana kings emerged victorious: Bechuanaland would remain a protectorate, but not folded into Britain’s Cape Colony, foiling Rhodes’s machinations.


Zootaxa ◽  
2007 ◽  
Vol 1414 (1) ◽  
pp. 1-62 ◽  
Author(s):  
AHMED S. THANDAR

Collections of holothuroid echinoderms received from the Natal and South African Museums, the Universities of Cape Town and Witwatersrand and that present in the former University of Durban-Westville, contain several new species and many others that are new to the fauna of southern Africa, south of the tropic of Capricorn. A paper describing and/or recording several dendrochirotids and a dactylochirotid, from a portion of these materials originating from the east coast of southern Africa, has already been published. The current paper describes and/or reports on several new species and records of aspidochirotid, molpadid and apodid holothuroids, also from the east coast, extending from Inhaca Island, off the coast of Maputo (Mozambique), to the Port St. Johns-East London area (South Africa), the subtropical zoogeographic province. A few other species have been included if they represent juvenile material, or considered extensions of ranges (bathymetric or otherwise) of previously known species, or confirmation of a species previously recorded from a single locality in the region under consideration, or for the provision of taxonomic data that was excluded for some previous published records. Of the 30 species treated, four are new to science and seven are new records for the southern African region. The new species are Holothuria (Lessonothuria) tuberculata, H. (Theelothuria) duoturriforma, H.(T.) longicosta and H. (T.) pseudonotablis, whereas the new records include Stichopus cf. monotuberculatus (Quoy & Gaimard), Actinopyga bannwarthi Panning, A. lecanora (Jaeger), Bohadschia marmorata (Jaeger), H. (Vaneyothuria) integra Koehler & Vaney, Molpadia triforia (Cherbonnier) and Protankyra autopista (Marenzeller).


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