Original Research

Destruction of the Phoenix/Hibiscus and Barringtonia racemosa Communities at Richards Bay, Natal, South Africa

P. J. Weisser, C. J. Ward
Bothalia | Vol 14, No 1 | a1151 | DOI: https://doi.org/10.4102/abc.v14i1.1151 | © 1982 P. J. Weisser, C. J. Ward | This work is licensed under CC Attribution 4.0
Submitted: 30 October 1982 | Published: 31 October 1982

About the author(s)

P. J. Weisser, Botanical Research Institute, Department of Agriculture and Fisheries, South Africa
C. J. Ward, niversity of Durban Westville, Department of Botany, South Africa

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Abstract

The destruction of the Phoenix!Hibiscus and Barringtonia racemosa Communities described by Venter in 1972 on the southern shores of Richards Bay is reported. The cause was the artificial openingof a new mouth about 5,5 km south of the original mouth, which increased tidal range and salinity. These swamp communities occupied a narrow band about 6 ha in area behind the Bruguiera gymnorrhiza Community. An estimated 95 % of the communities was affected and only on the landward border were some isolated remnants of species such as Acrostichum aureum, Hibiscus tiliaceus and Phoenix reclinata detected .Young stands of  Phragmites australis, seedlings of  Bruguiera gymnorrhiza and Avicennia marina and epipelic algae are recoIonizing the affected area.

 


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