Madagascar succulent woodlands

Madagascar succulent woodlands
Madagascar succulent woodlands
	Avenue of the Baobabs near Morondava
Ecology
Realm	Afrotropical
Biome	Deserts and xeric shrublands
Borders	Madagascar dry deciduous forests; Madagascar subhumid forests; 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
Area	79,700 km2 (30,800 sq mi)
Country	Madagascar
Elevation	0–600 metres (0–1,969 ft)
Coordinates	22°36′S 44°36′E / 22.600°S 44.600°E
Geology	Sands, sandstone, limestone, metamorphic, and igneous basement rocks
Climate type	Hot semi-arid climate (BSh)
Soil types	Sandy
Conservation
Conservation status	Critical, endangered
Protected	4.63%

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.

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]

References

^ ^a ^b Madagascar succulent woodlands. DOPA Explorer. Accessed 7 September 2022.
^ ^a ^b ^c ^d ^e ^f ^g ^h 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.
^ 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.
^ Ratsimbazafy, Rondro (6 September 2019). "Madagascar forest destruction wiping out humans' tiniest relative". Reuters. Retrieved 9 September 2022.

External links

"Madagascar succulent woodlands". Terrestrial Ecoregions. World Wildlife Fund.

[dopa-1] Madagascar succulent woodlands. DOPA Explorer. Accessed 7 September 2022.

[Crowley2004-succulent-woodlands-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h 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.

[Goodman2003-3] 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.

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