Southern African Sand Forest

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Sand Forest at Nibela Peninsula, Lake St Lucia, KwaZulu-Natal Sand Forest2 Nibela Peninsula 24 05 2011.JPG
Sand Forest at Nibela Peninsula, Lake St Lucia, KwaZulu-Natal

Southern African Sand Forest is a sand forest, or a subtropical forest plant community of the tropical and subtropical dry broadleaf forests biome. It grows on ancient sand dunes in northern KwaZulu-Natal and southern Mozambique. In South Africa these forests are known simply as Sand Forest, while in Mozambique they are known as Licuati Forest. [1] The Southern African sand forest is part of the Maputaland coastal forest mosaic ecoregion.

Contents

Origins

Sand forests are thought to be relics of coastal dune forests, which have been separated from the ocean for more than a million years as the shoreline has shifted slowly eastwards over the millennia. [2] Dunes have accreted on the southeast African coastal plain since the Pliocene, [3] and frequent sand mobilization events during climatic changes have resulted in some reworking of the dunes. [4] The geological history of the region suggests that the current ecosystems here may be of recent derivation and many endemic plant taxa comply with the concept of neo-endemics (recent locally evolved species), and biological evolution (notably speciation) is still in an active phase. [1]

Characteristics

Newtonia hildebrandtii (a characteristic sand forest species) at Nibela Peninsula Newtonia hildebrandtii Nibela Peninsula 24 05 2011.JPG
Newtonia hildebrandtii (a characteristic sand forest species) at Nibela Peninsula
Cola greenwayi at Nibela Peninsula Cola greenwayi2 Nibela Peninsula 25 05 2011.JPG
Cola greenwayi at Nibela Peninsula

Of the 225 Maputaland Centre plant endemic species, 30 are associated with sand forest and 20 are restricted to this vegetation type. [1] Species typical of moist forests, such as ferns and mosses are scarce, and the activities of termites appear to limit the accumulation of leaf litter. [5] Sand forest has a distinct boundary and also exhibits a narrow zone of 1–2 m of nearly bare soil directly bordering it. [1] There are indications that sand forest has allelopathic effects which may bring about this zone of inhibition and this aids in limiting fires spreading from the neighboring savannah into the forest; creating a unique environment for itself. [1]

List of trees (Incomplete)

List references [1] [6]

See also

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KwaZulu-Natal Dune Forest Subtropical forest type from the coastal dunes of KwaZulu-Natal, South Afric

KwaZulu-Natal Dune Forest is a subtropical forest type that was once found almost continuously along the coastal dunes of KwaZulu-Natal, South Africa. This vegetation type develops in sheltered areas behind the littoral zone, where with some protection from the salt wind it may develop with canopies as tall as 30 m. It still exists in protected areas, but much has been degraded by human activity. Coastal dune forest covers approximately 1% of the land area of KwaZulu-Natal, and is a habitat type seriously threatened from human population pressure and development, particularly titanium mining.

<i>Mimusops caffra</i> Species of tree

Mimusops caffra is a species of tree in family Sapotaceae. This tree is found in coastal dune vegetation in Southern Africa from the Eastern Cape, through KwaZulu-Natal to southern Mozambique.

<i>Deinbollia oblongifolia</i> Species of tree

Deinbollia oblongifolia is a shrub or small tree in the family Sapindaceae. It is commonly known as the dune soap-berry and is found in coastal vegetation from the Eastern Cape of South Africa, through KwaZulu-Natal to southern Mozambique and Swaziland. It is named after Peter Vogelius Deinboll (1783-1876), a Danish botanist and plant collector.

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Sand forest Type of subtropical forest region, restricted to ancient coastal dunes.

A sand forest is a type of rare subtropical forest region, distinctive due to its unique combination of plant and animal species, and their restriction to ancient coastal dunes. Sand forests are found in Maputaland in South Africa, as well as parts of the Amazon basin in Brazil, Peru, and Colombia.

<i>Allophylus natalensis</i> Species of flowering plant

Allophylus natalensis, commonly known as the dune false crowberry or dune false currant, is a species of plant in the genus Allophylus native to south-eastern Africa.

<i>Cola greenwayi</i> Species of flowering plant

Cola greenwayi, commonly known as hairy cola or Zulu coshwood, is a species of flowering plant in the family Malvaceae. It was first described in 1956 by the English botanist John Patrick Micklethwait Brenan. It is native to southeastern Africa.

<i>Drypetes arguta</i> Species of tree

Drypetes arguta, commonly known as the water ironplum, is a species of small tree or large bush in the family Putranjivaceae. It is native to tropical East Africa. It was first described in 1920 by the English botanist John Hutchinson, who named it Cyclostemon argutus. It was later transferred to the genus Drypetes.

<i>Microcoelia exilis</i> Species of orchid

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References

  1. 1 2 3 4 5 6 Wayne Matthews. "Maputaland's Tembe Elephant National Park, - a little known reserve with many natural secrets" . Retrieved 22 June 2011.
  2. Duncan Butchart CC Africa (21 November 2006). "Eyes on the wild". Wildwatch.com. Archived from the original on 6 August 2007.
  3. Soil chronosequence development in dunes on the southeast African coastal plain, Maputaland, South Africa Quaternary International Volumes 162-163, March 2007, Pages 111-132 The Soil Record of Quaternary Climate Change. Greg Botha and Naomi Porat
  4. The luminescence chronology of dune development on the Maputaland coastal plain, southeast Africa. Quaternary Science Reviews Volume 27, Issues 9-10, May 2008, Pages 1024-1046 Naomi Porat and Greg Botha
  5. Duncan Butchart CC Africa (21 November 2006). "eyes on the wild". Wildwatch.com. Archived from the original on 6 August 2007.
  6. Pooley, E. (1993). The Complete Field Guide to Trees of Natal, Zululand and Transkei. ISBN   0-620-17697-0.