Wednesday, April 2, 2014

Lessons from the Forests of Madagascar


By Liliana Usvat
Blog 168-365


Country
Area of Country
Original Forest
Present Forest
Annual Rate of
(sq km)
Cover (sq km)
Cover (sq km)
Deforestation (sq km)
 Madagascar
 590,992
 62,000
 10,000
 2,000


When Madagascar was colonized (1500-2000 years ago), the original extent of its eastern rainforest was 11.2 million hectares (ha), in 1950, only 7.6 million ha remained . In 1985, 3.8 million ha of forest covered the eastern rainforests of Madagascar, only 50% of the rainforests existing in 1950 still remained . Between 1950-1985, the average rate of clearance was 111,000 ha (1.5%) per year. Approximately 90% of all Madagascar's forests have been destroyed.

Madagascar is the fourth largest island in the world and biologically is regarded as one of the richest areas on Earth; species richness per unit area is especially high compared to similar areas in Africa . Madagascar accounts for 2% of Africa's land mass, but survives 10,000 species of plant life, 80% of which are endemic, meaning they are found nowhere else in the world . All of the world's lemurs (primates), which are all endangered, can be found in Madagascar . 


Madagascar is home to some of the richest rainforests on Earth.


Madagascar's lowland rainforests have been preserved generally better than the high central plateau, presumably due to historically less population density and longer distance to the capital city via marginal highway.

There has been widespread slash-and-burn activity in the lowland rainforests, reducing certain forest habitat and applying pressure to some endangered species. Slash-and-burn is a method sometimes used by shifting cultivators to create short term yields from marginal soils.

When practiced repeatedly, or without intervening fallow periods, the nutrient-poor soils may be exhausted or eroded to an unproductive state. These habitat loss impacts are especially significant because of the inherent biodiversity and high endemism of these rainforests.

An interesting feature of these rainforests is the presence of Pachypodium habitats, often associated with xeric islands created by locally efficient drainage.
 
It is estimated that only a third of the original lowland forest remains intact. Seven percent of the lowland forests that remain are protected in national parks and reserves, including Masoala National Park, Mananara Biosphere Reserve (including Verezanantsoro National Park), Ambatovaky Special Reserve, and Zahamena Integral Nature Reserve and National Park. It is not a world heritage area.

Apparently there are some "scientist" that are paid to test how the rainforest can recover from controlled burns. And the found that after the third consecutive burn of a forest the land became a savana. and the forest cannot recover. You need people to be paid to figure it out? Instead of paying them to figure it out how to reverse deforestation.....

The consequence of the systematic destruction of the forest in Madagascar the land cannot be used for agriculture because the floods and landslide. Is Maya all over again. For the benefits of few that make profit at the expense of the cutting trees for profit and burning the forest for agriculture.

Fauna
The lowland forests represent a great reservoir of diversity and endemism. Nearly all of Madagascar's endemic mammal genera are represented there, including all five families of lemurs. 
 

Fifteen species and subspecies of lemurs are endemic and near-endemic to the ecoregion, including the Aye-aye (Daubentonia madagascariensis), the Hairy-eared Dwarf Lemur (Allocebus trichotis), both species of ruffed lemurs (Varecia variegata, V. rubra), the Indri (Indri indri), the Eastern Woolly Lemur (Avahi laniger), the Diademed Sifaka (Propithecus diadema), Milne-Edwards' Sifaka (P. edwardsi), the Golden Bamboo Lemur (Hapalemur aureus), the Greater Bamboo Lemur (Prolemur simus), the Gray-headed Lemur (Eulemur cinereiceps), the Collared Brown Lemur (E. collaris), and the Red-bellied Lemur (E. rubriventer). As well as lemurs the forest are home to seven endemic genera of Rodentia, six endemic genera of Carnivora and several species of bat.
 (Delalande's Coua)

A famous extinct species was Delalande's Coua (Coua delalandei) which has not been seen since the 19th century.

Facts about Madagascar
 
  • At 587,000km2 (226,640 sq mi), Madagascar is the world's fourth largest island - about the size of Kenya or France.
     
  • The highest mountain is Maromokotro at 2876m.
     
  • The island was created when it separated from the Indian subcontinent 80-100 million years ago.
     
  • 250,000 species are found here, of which 70% are found nowhere else in the world.
     
  • Of the estimated 14,000 plants native to Madagascar, 90% are found nowhere else in the world.
     
  • With 26 endemic families and more than 470 endemic genera, Madagascar is one of the richest places on Earth for higher level endemism.
     
  • Of the 50 different kinds of lemurs, 10 are critically endangered, 7 are endangered and 19 are considered vulnerable.
     
  • There are 7 species of baobab trees in Madagascar compared to only one in all of the rest of Africa.
     
  • The Toliara coral reef, off Madagascar's southwestern coast, is the 3rd largest coral reef system in the world.
     
  • Recent surveys indicate that coral diversity is higher in Madagascar than in any of the East African states or the Red Sea
     
  • The region also has the most extensive mangrove coverage in the Western Indian Ocean.
     
  • Analysis of satellite imagines indicates that forest cover has decreased by almost 40% from the 1950s to 2000. This forest destruction and degradation threatens thousands of species with extinction. Experts now predict that Madagascar has already lost 90 % of its original forest cover.
 What Can be done.

1. Stop the destruction of the forest
2. Replant the land that cannot be used using seeds still available.
3. Extend forested area 
4. Allocate land to people that live there and teach them how to use permaculture to regenerate the forest.
5.Invest in tourism that bring money to the country
6. Build roads and infrastructure
7.Research and preserve the plants and animals existing there.
8.Build hotels that bring tourism that respect the land and bring income to the people that live there so they do not need to use the land for farming and are forced to destroy the forest for the benefits of international corporations.
9.Invest in people education, energy, infrastructure, buildings.

Biodiversity and National Parks

Madagascar is among the top countries known for their "megadiversity" and features an extraordinarily high number (circa 12,000) of endemic plant species. 

The Rainforests of the Atsinanana are a serial property comprising six components.  They contain globally outstanding biodiversity and have an exceptional proportion of endemic plant and animal species.  The level of endemism within the property is approximately 80 to 90 percent for all groups, and endemic families and genera are common.  The serial property comprises a representative selection of the most important habitats of the unique rainforest biota of Madagascar, including many threatened and endemic plant and animal species.

Cause of Deforestation


Most of the plant and animal life in Madagascar are the world's most endangered species. Slash-and-burn agriculture on poor soil, is the major reason for deforestation, which causes habitat destruction leading to species endangerment.

 As a result, Madagascar is the world's most eroded country, with large amounts of sediment flowing into the rivers and collecting in coastal areas. The Eastern rainforest of Madagascar is highly biodiverse and extremely valuable to both humans and animals, however this is the case for all rainforests; they all need to be protected.

Scars of bald earth, exposed by slash-and-burn deforestation, encroach on the forests of northeastern Madagascar. Economic pressures have driven the government to exploit one of the most biologically rich areas on Earth for cultivation of coffee beans. Are the banks behind it?

A rainforest is a tropical biome chacterized by regular rainfall (exceeding 100 inches -- 250 cm -- per year), and a high canopy consisting of a dense ceiling of leaves and tree branches formed by closely spaced evergreen trees. - See more at: http://www.wildmadagascar.org/overview/rainforests.html#sthash.EAHN8kq4.dpuf
Well over half of Madagascar's species are found in these forests which lie on the east coast of the island. - See more at: http://www.wildmadagascar.org/overview/rainforests.html#sthash.EAHN8kq4.dpuf
Well over half of Madagascar's species are found in these forests which lie on the east coast of the island. - See more at: http://www.wildmadagascar.org/overview/rainforests.html#sthash.EAHN8kq4.dpuf
Well over half of Madagascar's species are found in these forests which lie on the east coast of the island. - See more at: http://www.wildmadagascar.org/overview/rainforests.html#sthash.EAHN8kq4.dpuf
Well over half of Madagascar's species are found in these forests which lie on the east coast of the island. - See more at: http://www.wildmadagascar.org/overview/rainforests.html#sthash.EAHN8kq4.dpuf

No comments: