On the Central South African Tribes from the South Coast to the Zambesi.

1881 ◽  
Vol 10 ◽  
pp. 2
Author(s):  
Emil Holub
Keyword(s):  
South African ◽  
South Coast ◽  
The South ◽  
Central South

Hypoglossum imperfectum nov. spec. (Rhodophyta, Delesseriaceae), from the South African South Coast

2001 ◽  
Vol 44 (2) ◽  
Author(s):  
H. Stegenga ◽  
R. J. Anderson ◽  
J. J. Bolton
Keyword(s):  
South African ◽  
South Coast ◽  
The South

scholarly journals Ground-dwelling spider assemblages in contrasting habitats in the central South African Grassland Biome

Koedoe ◽  
2018 ◽  
Vol 60 (1) ◽  
Author(s):  
Charles R. Haddad ◽  
Vivian P. Butler
Keyword(s):  
South African ◽  
Early Spring ◽  
Vegetation Composition ◽  
The South ◽  
Pitfall Trapping ◽  
Game Reserve ◽  
Digitaria Eriantha ◽  
Grassland Biome ◽  
Contrasting Habitats ◽  
Central South

Background: Ground-dwelling spider assemblages in shrublands and cultivated pastures in the South African Grassland Biome have never been comprehensively studied.Objectives: Epigeic spiders were collected in eight different habitats in the Amanzi Private Game Reserve in the Free State to determine assemblages of different vegetation types.Methods: Three of the sampled habitats were contrasting low-lying shrublands; three were contrasting hill aspects (northern slope, southern slope and plateau) in the Buddleja saligna–Searsia burchellii–Olea europaea africana subcommunity; one habitat was cultivated Digitaria eriantha pastures, and the last habitat was an area in and around a freshwater dam. Spiders were sampled by pitfall trapping in early spring (Sept. 2012), mid-summer (Jan. 2013), mid-autumn (Apr. 2013) and mid-winter (July 2013).Results: A total of 2982 adult spiders were collected, representing 129 species and 33 families. Ammoxenidae was the most abundant family (40.85%), followed by Gnaphosidae (21.26%), Zodariidae (10.80%) and Salticidae (10.26%). Gnaphosidae was the most species-rich family (24.81%), followed by Salticidae (13.18%), Lycosidae (11.63%) and Zodariidae (6.20%). Spider activity densities and species richness did not differ significantly between habitats, although significant seasonal fluctuations were detected. The three hill aspects and cultivated D. eriantha pastures had the most distinct assemblages, while those of the three low-lying shrublands and freshwater dam showed considerable overlap.Conclusions: Our results indicate that the aspect of hills has a significant effect in shaping spider assemblages, while the vegetation composition of shrublands is not strongly influential. The unique spider assemblages of cultivated D. eriantha pastures can be attributed to the absence of woody plants.Conservation implications: This was the first study to investigate ground-dwelling spider assemblages in shrublands and cultivated pastures in the South African Grassland Biome. Our study confirms that hill aspects, shrublands and pastures harbour very different spider faunas. When identifying land for potential expansion or establishment of protected areas, conservation planners should ensure that the greatest diversity of vegetation units are included to optimise the conservation of biodiversity.

Aphanocladia ecorticata nov. sp. (Rhodophyta, Rhodomelaceae) from the South African south coast

2004 ◽  
Vol 47 (2) ◽  
Author(s):  
Herre Stegenga ◽  
Robert J. Anderson ◽  
John J. Bolton
Keyword(s):  
South African ◽  
South Coast ◽  
The South

scholarly journals Tufa stromatolite ecosystems on the South African south coast

2014 ◽  
Vol 110 (9/10) ◽  
pp. 1-8 ◽  
Author(s):  
Renzo Perissinotto ◽  
Tommy G. Bornman ◽  
Paul-Pierre Steyn ◽  
Nelson A.F. Miranda ◽  
Rosemary A. Dorrington ◽  
...  
Keyword(s):  
South African ◽  
South Coast ◽  
The South

scholarly journals The relative importance of shallow and deep shelf spawning habitats for the South African chokka squid (Loligo reynaudii)

2012 ◽  
Vol 69 (4) ◽  
pp. 563-571 ◽  
Author(s):  
Michael J. Roberts ◽  
Nicola J. Downey ◽  
Warwick H. Sauer
Keyword(s):  
South African ◽  
South Coast ◽  
Depth Range ◽  
Relative Importance ◽  
Shelf Edge ◽  
The South ◽  
The West ◽  
Spawning Grounds ◽  
Egg Capsules ◽  
Spawning Habitats

Abstract Roberts, M. J., Downey, N. J., and Sauer, W. H. 2012. The relative importance of shallow and deep shelf spawning habitats for the South African chokka squid (Loligo reynaudii). – ICES Journal of Marine Science, 69: 563–571. It is well known that the spawning grounds of chokka squid Loligo reynaudii lie along the shallow inshore regions of South Africa's south coast. However, egg masses have been found in deeper water on the Agulhas Bank, and hydroacoustic targets deemed to be large aggregations of spawning squid have been identified. The aim of this study was to investigate the extent, depth range, and importance of deep spawning. Trawl data collected during demersal research surveys between Port Nolloth on the west and Port Alfred on the south coast were examined for egg capsules. No spawning was found on the west coast. Data showed that chokka squid preferred the eastern Agulhas Bank for spawning. Spawning occurred not only inshore but also on the mid-shelf extending to depths of 270 m near the shelf edge. Squid egg biomass markedly decreased beyond 70 m, suggesting delineation between the inshore and offshore spawning grounds. Total egg biomass calculations for depths shallower and deeper than 70 m indicated the coastal area to be strongly favoured, i.e. 82 vs. 18%. These results contest the commonly accepted notion that L. reynaudii is an inshore spawner and redefine the spawning grounds to extend across the shelf.

scholarly journals The South African estuarine specialist Codium tenue (Bryopsidales, Chlorophyta) discovered in a south-western Australian estuary

2015 ◽  
Vol 58 (6) ◽  
Author(s):  
John M. Huisman ◽  
Rainbo R.M. Dixon ◽  
Felicity N. Hart ◽  
Heroen Verbruggen ◽  
Robert J. Anderson
Keyword(s):  
South Africa ◽  
South African ◽  
Western Australia ◽  
South Coast ◽  
The South ◽  
Inlet System ◽  
Australian Estuary ◽  
Western Australian

Abstract, previously known reliably only from estuarine habitats in South Africa, is recorded from a similar habitat in the Walpole and Nornalup Inlet system, on the south coast of Western Australia. The Australian

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