Madagascar succulent woodlands

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Madagascar succulent woodlands
Madagascar baobab.JPG
Ecoregion AT1312.svg
Ecology
Realm Afrotropical
Biome Deserts and xeric shrublands
Borders Madagascar dry deciduous forests, Madagascar subhumid forests and Madagascar spiny forests
Animals Standing's day gecko, flat-backed spider tortoise
Bird species Appert's greenbul
Mammal species Malagasy giant rat, Madame Berthe's mouse lemur, Verreaux's sifaka, narrow-striped mongoose
Geography
Area79,700 km2 (30,800 sq mi)
CountryMadagascar
Elevation0–600 metres (0–1,969 ft)
Coordinates 22°36′S44°36′E / 22.600°S 44.600°E / -22.600; 44.600 Coordinates: 22°36′S44°36′E / 22.600°S 44.600°E / -22.600; 44.600
GeologySands, sandstone, limestone, metamorphic, and igneous basement rocks
Climate type Hot semi-arid climate (BSh)
Soil typesSandy
Conservation
Conservation status Critical, endangered
Protected4.63% [1]

The Madagascar succulent woodlands are a xeric shrublands ecoregion in southwestern and central western Madagascar. Native plants survive in the arid climate and long dry season with adaptations like succulent leaves, water storing trunks, photosynthetic stems, and dropping leaves during the dry season. The ecoregion is threatened by various human activities.

Contents

Geography

The succulent woodlands are found in the southwest and centre-west of Madagascar, in the rain shadow region that receives less moisture than the east and the Central Highlands. The climate is tropical and dry, with rainfall ranging from 575 to 1,330 mm per year, and a marked dry season from May to October. [2]

To the north, the succulent woodlands make a transition into the Madagascar dry deciduous forests, while to the south they border the even drier Madagascar spiny thickets, and to the east the Madagascar subhumid forests. They are bounded on the west by the Mozambique Channel. [2]

Flora

The vegetation is similar to the dry deciduous forests to the north, but includes more dry-adapted, xerophytic species. Forests and open-canopied woodlands, reaching 15 metres (49 ft) in height, contain trees and shrubs of the families Burseraceae, Euphorbiaceae, Fabaceae, and Sapindaceae. Notable endemic and near-endemic plants include two species of baobab, Adansonia za and A. grandidieri (near threatened and endangered, respectively), the endemic tree hazomalany ( Hazomalania voyronii ), and succulents in the genus Pachypodium . [2]

Fauna

Between 60 and 90 bird species and eight lemur species are found in the ecoregion and a number of mammals, frogs, and reptiles are endemic to the area. [2]

Native mammals include the red-tailed sportive lemur (Lepilemur ruficaudatus), large-eared tenrec (Geogale aurita), lesser hedgehog tenrec (Echinops telfairi), and Verreaux's sifaka (Propithecus verreauxi verreauxi). Endemic mammals include the narrow-striped mongoose (Mungotictis decemlineata), Malagasy giant rat (Hypogeomys antimena), and endangered Madame Berthe's mouse lemur (Microcebus berthae), [2] the world's smallest primate. [3]

Native limited-range birds include the red-capped coua (Coua ruficeps), Appert's greenbul (Xanthomixis apperti), white-breasted mesite (Mesitornis variegatus), and long-tailed ground roller (Uratelorinis chimaera). [2]

Threats and conservation

The Madagascar succulent woodlands are threatened by burning, logging (which impacts species such as the endemic tree Hazomalania voyronii), cattle and goat farming, and hunting of several mammals. [2]

4.63% of the ecoregion is in protected areas. Protected areas include Zombitse-Vohibasia National Park, Kirindy Mitea National Park, Andranomena Special Reserve, and Beza Mahafaly Special Reserve. [1] [2]

The Menabe Antimena protected area, located in the west of the ecoregion, includes the northern portion of the Kirindy Forest. Large areas have been illegally logged, burned, and converted to maize fields, which threatens the area's wildlife, including Madame Berthe's mouse lemur. [4]

See also

Related Research Articles

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<span class="mw-page-title-main">Madame Berthe's mouse lemur</span> Species of mammal

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<span class="mw-page-title-main">Narrow-striped mongoose</span> Species of carnivore

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<span class="mw-page-title-main">Zahamena National Park</span>

Zahamena National Park is a national park of Madagascar. Established in 1997, it covers an area of 423 square kilometres (163.32 sq mi) out of a total protected area of 643 square kilometres (248.26 sq mi). It is part of a UNESCO World Heritage Site, Rainforests of the Atsinanana, inscribed in 2007 and consisting of 13 specific areas located within eight national parks in the eastern part of Madagascar. In 2001, Bird Life International assessed avifauna of 112 species of which 67 species are exclusively endemic to Madagascar.

<span class="mw-page-title-main">Zombitse-Vohibasia National Park</span>

Zombitse-Vohibasia is a national park in the Atsimo-Andrefana region of south-west Madagascar. It is 147 kilometres (91 mi) north-east of the town of Toliara, the site of the nearest airport, and the Welcome Office is at Sakaraha 10 kilometres (6.2 mi) from the park entrance. The park covers a surface of 36,308 hectares on three sites; the forest of Zombitse and the sites of Isoky Vohimena and Vohibasia. The Bara people and Mahafaly people are the main ethnic groups in the area.

<span class="mw-page-title-main">Andranomena Special Reserve</span>

Andranomena Special Reserve is a wildlife reserve in Menabe Region, western Madagascar, near the city of Morondava and the rural commune of Bemanonga.

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<span class="mw-page-title-main">Mikea Forest</span>

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<span class="mw-page-title-main">Kirindy Forest</span>

Kirindy Forest or Kirindy Private Reserve is a private park situated in western Madagascar, More precisely, the reserve is situated 50 km northeast of the town of Morondava. The Forest goes through two apparent seasons throughout the year, the dry season from March to December and the rainy season from December to March.6. The forest is home to a wide variety of both Fauna and Flora. Ranging from Lemurs to geckos. Many species of trees are also growing in the forest with a wide variety of endemic trees. The forest was earlier operated based on an experimental sustainable timber harvesting scheme, which has not left indelible scars on the region. It is said in Malagasy cultures that the forest was named Kirindy because Kirindy means in malagasy "dense forest with wild animals". As it is located in the northern area of the Kirindy Mitea National Park, the forest is also known as "Kirindy Nord", meaning northern Kirindy. Before being renamed Kirindy, the forest was called the Swiss people's forest, "la foret des Suisses" as a Swiss company owns the piece of land.

<span class="mw-page-title-main">Berthe Rakotosamimanana</span> Malagasy primatologist and paleontologist

Berthe Rakotosamimanana was a primatologist and palaeontologist from Madagascar.

References

  1. 1 2 Madagascar succulent woodlands. DOPA Explorer. Accessed 7 September 2022.
  2. 1 2 3 4 5 6 7 8 Crowley, H. (2004). "114 – Madagascar Succulent Woodlands". In Burgess, N.; D'Amico Hales, J.; Underwood, E.; et al. (eds.). Terrestrial Ecoregions of Africa and Madagascar: A Conservation Assessment (PDF). World Wildlife Fund Ecoregion Assessments (2nd ed.). Washington D.C.: Island Press. pp. 417–418. ISBN   978-1559633642. Archived from the original (PDF) on 2016-11-01.
  3. Goodman, S.M.; Ganzhorn, J.U.; Rakotondravony, D. (2003). "Introduction to the Mammals". In Goodman, S.M.; Benstead, J.P. (eds.). The Natural History of Madagascar. Chicago, London: The University of Chicago Press. pp. 1159–1190. ISBN   978-0226303062.
  4. Ratsimbazafy, Rondro (6 September 2019). "Madagascar forest destruction wiping out humans' tiniest relative". Reuters. Retrieved 9 September 2022.