Everything about The Atlantic Forest totally explained
The
Atlantic Forest (
Mata Atlântica in
Portuguese) is a region of
tropical and subtropical moist forest,
tropical dry forest,
tropical savannas, and
mangrove forests which extends along the
Atlantic coast of
Brazil from
Rio Grande do Norte state in the north to
Rio Grande do Sul state in the south, and inland as far as
Paraguay and the
Misiones Province of
Argentina.
The Atlantic Forest region includes forests of several variations.
- The coastal restingas are low forests which grow on stabilized coastal dunes.
- The coastal forests, also known as Atlantic moist forests, are evergreen tropical forests with structures.
- Inland are the interior forests, also known as the Atlantic semi-deciduous forests, where many trees drop their leaves during the dry season.
- Further inland are the Atlantic dry forests, which form a transition between the arid Caatinga to the northeast and the Cerrado savannas to the east.
- Montane moist forests occur in the Serra do Mar and across the mountains and plateaus of southern Brazil, and are home to Araucaria and evergreen trees of the laurel (Lauraceae) and myrtle (Myrtaceae) families.
- Shrubby montane savannas occur at the highest elevations.
The Atlantic Forest is unusual in that it extends as a true
tropical rainforest to latitudes as high as
24°S. This is because the
trade winds produce precipitation throughout the southern winter. In fact, the northern
Zona da Mata of northeastern Brazil receives much more rainfall between May and August than during the southern
summer.
The Atlantic Forest is now designated a
World Biosphere Reserve, which contains a large number of highly
endangered species including the well known
marmosets and
golden lion tamarins. It has been extensively cleared since colonial times, mainly for the farming of
sugar cane and for urban settlements. The remnant is estimated to be less than 10% of the original and that's often broken into hilltop islands.
The Amazon Institute is active in reforestation efforts in the northeastern state of Pernambuco, Brazil. During 2007, Joao Milanez and Joanne Stanulonis have planted 5,500 new trees in the mountains commencing with Gravata, adding to the precious little, ancient forest left.
During
glacial periods, however, the Atlantic Forest is known to have shrunk to extremely small
refugia in highly sheltered gullies, with most of the land area more recently occupied by the characteristic Atlantic Forest being occupied by
dry forest or even
semi-desert. Some maps even suggest the forest actually survived in moist pockets well away from the coastline, where its endemic rainforest species mixed with much cooler-
climate species. Unlike refugia for
equatorial rainforests, the refuges for the Atlantic Forest have never been the product of detailed identification.
Ecoregions
Tropical and subtropical moist broadleaf forests
Araucaria moist forests
Atlantic Coast restingas
Bahia coastal forests
Bahia interior forests
Caatinga enclaves moist forests
Paraná-Paraíba interior forests
Pernambuco coastal forests
Pernambuco interior forests
Serra do Mar coastal forests
Tropical and subtropical dry broadleaf forests
Atlantic dry forests
Tropical and subtropical grasslands, savannas, and shrublands
Campos Rupestres montane savanna
Mangroves
Bahia mangroves
Ilha Grande mangroves
Rio Piranhas mangroves
Rio São Francisco mangroves
Further Information
Get more info on 'Atlantic Forest'.
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