Cape Floristic Region

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Cape Floral Region Protected Areas
UNESCO World Heritage Site
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Location South Africa
Includes
Criteria Natural: (ix), (x)
Reference 1007bis
Inscription2004 (28th Session)
Extensions2015
Area1,094,742 ha (2,705,170 acres)
Buffer zone798,514 ha (1,973,170 acres)
Coordinates 34°10′00″S18°22′30″E / 34.16667°S 18.37500°E / -34.16667; 18.37500
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Location of Cape Floristic Region in South Africa

The Cape Floral Region is a floristic region located near the southern tip of South Africa. It is the only floristic region of the Cape Floristic Kingdom, and includes only one floristic province, known as the Cape Floristic Province.

Contents

The Cape Floristic Region, the smallest of the six recognised floral kingdoms of the world, is an area of extraordinarily high diversity and endemism, and is home to over 9,000 vascular plant species, of which 69 percent are endemic. [1] Much of this diversity is associated with the fynbos biome, a Mediterranean-type, fire-prone shrubland. [1] The economical worth of fynbos biodiversity, based on harvests of fynbos products (e.g. wildflowers) and eco-tourism, is estimated to be in the region of R77 million (~US$5 million) a year. [1] Thus, it is clear that the Cape Floristic Region has both economic and intrinsic biological value as a biodiversity hotspot. [1]

Location and description

Extent of the Greater Cape Floristic Region
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The region occupies less than 0.5% of Africa's land area but supports approximately 20% of its plant life.

Home to the greatest non-tropical concentration of higher plant species in the world, the region is the only hotspot that encompasses an entire floral kingdom, and holds five of South Africa's 12 endemic plant families and 160 endemic genera. Covering 78,555 km2, Cape Floristic Region hotspot is located entirely within the borders of South Africa.

It is one of the five temperate Mediterranean-type systems on the hotspots list, and is one of only two hotspots that encompass an entire floral kingdom (the other being New Caledonia)[ citation needed ].

The Region covers the Mediterranean climate region of South Africa in the Western Cape in the southwestern corner of the country, and extends eastward into the Eastern Cape, a transitional zone between the winter rainfall region to the west and the summer-rainfall region to the east in KwaZulu-Natal.

Flora

Fynbos in the Western Cape Flora at Cape Peninsula.JPG
Fynbos in the Western Cape
A 360 degree photograph of fynbos in the Groot Winterhoek region of the Western Cape about 18 months after a fire. New plants can be seen in various stages of growth following the fire. The infertile white soil that fynbos tends to grow in can also be clearly seen. Fynbos 18 months after fire - 360 degree photo.jpg
A 360 degree photograph of fynbos in the Groot Winterhoek region of the Western Cape about 18 months after a fire. New plants can be seen in various stages of growth following the fire. The infertile white soil that fynbos tends to grow in can also be clearly seen.

Most of the region is covered with fynbos, a sclerophyllous shrubland occurring on acid sands or nutrient-poor soils derived from Table Mountain sandstones (Cape Supergroup). Fynbos is home to a diverse plethora of plant species including many members of the protea family (Proteaceae), heath family (Ericaceae), and reed family of restios (Restionaceae). Other vegetation types are sandveld, a soft coastal scrubland found mostly on the west-facing coast of the Western Cape Province, on tertiary sands. Renosterveld is a grassy shrubland dominated by members of the daisy family (Asteraceae), particularly renosterbos (Elytropappus rhinocerotis), graminoids and geophytes, occurring on the base-rich shaley soils of the coastal forelands. Small pockets of Afromontane forest (Southern Afrotemperate Forest) can be found in humid and sheltered areas.

According to Takhtajan (1978), the following families are endemic or subendemic to the region: Grubbiaceae, Roridulaceae, Bruniaceae, Penaeaceae, Greyiaceae, Geissolomataceae, Retziaceae ( Retzia ) and Stilbaceae. [2] [3] Rooibos is produced out of this region.

Vegetation types

List of vegetation types of the Cape Floristic Region: [4] [5]

Ecology

The World Wide Fund for Nature divides the Cape floristic region into three ecoregions: the Lowland fynbos and renosterveld, Montane fynbos and renosterveld and the Albany thickets.

The fynbos ecoregions are designated one of the Global 200 priority ecoregions for conservation. Conservation International declared the Cape floristic region to be a biodiversity hotspot.

It is thought that the Cape Floristic Region is experiencing one of the most rapid rates of extinction in the world due to habitat loss, land degradation, and invasive alien plants. [6]

World Heritage Site

Biodiversity hotspots of the world showing the Cape Floristic Region (number 12) Biodiversity Hotspots 2015.svg
Biodiversity hotspots of the world showing the Cape Floristic Region (number 12)

In 2004, the "Cape Floral Region Protected Areas" were inscribed as a World Heritage Site. The site includes eight representative protected areas:

Related Research Articles

<span class="mw-page-title-main">Fynbos</span> Shrubland and heathland ecoregion of southwestern South Africa

Fynbos is a small belt of natural shrubland or heathland vegetation located in the Western Cape and Eastern Cape provinces of South Africa. This area is predominantly coastal and mountainous, with a Mediterranean climate and rainy winters. The fynbos ecoregion is within the Mediterranean forests, woodlands, and scrub biome. In fields related to biogeography, fynbos is known for its exceptional degree of biodiversity and endemism, consisting of about 80% species of the Cape floral kingdom, where nearly 6,000 of them are endemic. This land continues to face severe human-caused threats, but due to the many economic uses of the fynbos, conservation efforts are being made to help restore it.

<span class="mw-page-title-main">Kogelberg</span> Mountain range in South Africa

The Kogelberg is a range of mountains along the False Bay coast in the Western Cape of South Africa. They form part of the Cape Fold Belt, starting south of the Elgin valley and forming a steep coastal range as far as Kleinmond.

<span class="mw-page-title-main">Wildlife of South Africa</span> Flora and fauna of the country

The wildlife of South Africa consists of the flora and fauna of this country in southern Africa. The country has a range of different habitat types and an ecologically rich and diverse wildlife, vascular plants being particularly abundant, many of them endemic to the country. There are few forested areas, much savanna grassland, semi-arid Karoo vegetation and the fynbos of the Cape Floristic Region. Famed for its national parks and big game, 297 species of mammal have been recorded in South Africa, as well as 849 species of bird and over 20,000 species of vascular plants.

<span class="mw-page-title-main">Renosterveld</span> Vegetation type and plant community of the Cape Floristic Region

Renosterveld is a term used for one of the major plant communities and vegetation types of the Cape Floristic Region which is located in southwestern and southeastern South Africa, in southernmost Africa. It is an ecoregion of the Mediterranean forests, woodlands, and scrub biome.

<span class="mw-page-title-main">Biodiversity of Cape Town</span> Diversity of the natural environment of Cape Town

The Biodiversity of Cape Town is the variety and variability of life within the geographical extent of the City of Cape Town metropolitan municipality, excluding the Prince Edward Islands. The terrestrial vegetation is particularly diverse and much of it is endemic to the city and its vicinity. Terrestrial and freshwater animal life is heavily impacted by urban development and habitat degradation. Marine life of the waters immediately adjacent to the city along the Cape Peninsula and in False Bay is also diverse, and while also impacted by human activity, the habitats are relatively intact.

Swartland Alluvium Fynbos is a critically endangered vegetation type that occurs on the high plains and mountains in the far south-west of the Western Cape, South Africa.

<span class="mw-page-title-main">Lourensford Alluvium Fynbos</span> Vegetation type that is endemic to Cape Town, South Africa

Lourensford Alluvium Fynbos is a critically endangered vegetation type that is endemic to Cape Town. Though closest to Fynbos, it has characteristics of both Fynbos and Renosterveld vegetation and is thus actually a unique hybrid vegetation type.

<span class="mw-page-title-main">Kogelberg Sandstone Fynbos</span> Vegetation type endemic to the far south of the Western Cape, South Africa

Kogelberg Sandstone Fynbos is a critically endangered vegetation type occurring in the far south of the Western Cape, South Africa.

<span class="mw-page-title-main">Peninsula Shale Renosterveld</span> Vegetation type found only in South Africa

Peninsula Shale Renosterveld (PSR) is a unique vegetation type that is found only on the slopes of Signal Hill and Devil's Peak in Cape Town, South Africa. It is critically endangered and exists nowhere else.

<span class="mw-page-title-main">Swartland Shale Renosterveld</span> Vegetation type endemic to the Western Cape, South Africa

Swartland Shale Renosterveld is a critically endangered vegetation type of the Western Cape, South Africa.

<span class="mw-page-title-main">Cape Winelands Shale Fynbos</span> Vegetation type endemic to the Boland of the Western Cape, South Africa.

Cape Winelands Shale Fynbos is a vegetation type that naturally occurs in the Cape Winelands of the Western Cape, South Africa.

<span class="mw-page-title-main">Durbanville Nature Reserve</span> Piece of protected land next to the Durbanville Racecourse

Durbanville Nature Reserve is a 6-hectare (15-acre) piece of protected land, located next to the Hollywoodbets Durbanville Racecourse in the Western Cape, South Africa.

<span class="mw-page-title-main">Helderberg Nature Reserve</span> Nature reserve in Cape Town, South Africa

Helderberg Nature Reserve is a 398-hectare (980-acre) nature reserve in Somerset West, South Africa.

Blaauwberg Nature Reserve was proclaimed a local and provincial nature reserve in 2007. The reserve has views down fynbos slopes, across the city, to seven kilometres of rocky and sandy coastline and the ocean and beyond. The reserve presents itself as one of the few viewpoints in the world from where you can see two proclaimed world heritage sites, namely Table Mountain and Robben Island.

<span class="mw-page-title-main">Silwerboomkloof Natural Heritage Site</span> Protected valley near the Helderberg Nature Reserve, in Somerset West,

Silwerboomkloof Natural Heritage Site is a small, protected valley (“kloof”), near the Helderberg Nature Reserve, in Somerset West, South Africa.

<span class="mw-page-title-main">Kogelberg Nature Reserve</span> Protected area in the Western Cape province of South Africa

Kogelberg Nature Reserve is a nature reserve of 3,000 ha comprising the Kogelberg Mountain Range, to the east of Cape Town, South Africa.

<span class="mw-page-title-main">Mediterranean forests, woodlands, and scrub</span> Habitat defined by the World Wide Fund for Nature

Mediterranean scrub is a biome defined by the World Wide Fund for Nature. The biome is generally characterized by dry summers and rainy winters, although in some areas rainfall may be uniform. Summers are typically hot in low-lying inland locations but can be cool near colder seas. Winters are typically mild to cool in low-lying locations but can be cold in inland and higher locations. All these ecoregions are highly distinctive, collectively harboring 10% of the Earth's plant species.

The Cape Winelands Biosphere Reserve is located in the Western Cape Province of South Africa approximately 40 km (25 mi) east of Cape Town. The Biosphere Reserve extends from the Kogelberg Biosphere Reserve in the south, northwards along the Cape Fold Belt Mountain Chain and the adjoining valleys constituting the Cape Winelands. The Biosphere Reserve incorporates key portions of the registered Cape Floral Region Protected Areas World Heritage Site. The Reserve was designated in 2007.

The Biodiversity of South Africa is the variety of living organisms within the boundaries of South Africa and its exclusive economic zone. South Africa is a region of high biodiversity in the terrestrial and marine realms. The country is ranked sixth out of the world's seventeen megadiverse countries, and is rated among the top 10 for plant species diversity and third for marine endemism.

References

This article incorporates CC BY-3.0 text from the reference [1]

  1. 1 2 3 4 5 Odendaal, Lizelle J.; Haupt, Tanya M.; Griffiths, Charles L. (10 December 2008). "The alien invasive land snail Theba pisana in the West Coast National Park: Is there cause for concern?". Koedoe. 50 (1): 93–98. doi: 10.4102/koedoe.v50i1.153 . ISSN   2071-0771.
  2. Тахтаджян А. Л. Флористические области Земли / Академия наук СССР. Ботанический институт им. В. Л. Комарова. — Л.: Наука, Ленинградское отделение, 1978. — 247 с. — 4000 экз. DjVu Archived 5 October 2018 at the Wayback Machine , Google Books.
  3. Takhtajan, A. (1986). Floristic Regions of the World. (translated by T.J. Crovello & A. Cronquist). University of California Press, Berkeley, PDF, DjVu.
  4. "Vegetation Types". Archived from the original on 24 August 2013. Retrieved 24 February 2014.
  5. "Vegetation Types". Archived from the original on 4 April 2012. Retrieved 7 January 2011.
  6. South African Press Association (14 August 2014). "Cape is world's extinction capital" . Retrieved 20 August 2014.