Pernambuco interior forests

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Pernambuco interior forests
Rebio serra talhada.jpg
Pernambuco interior forest in Pedra Talhada Biological Reserve, Brazil.
Pernambuco interior forests WWF.png
Pernambuco interior forests ecoregion as defined by WWF.
Ecology
Biome Atlantic Forest
Borders
Bird species343 [1]
Mammal species132 [1]
Geography
Area22,792 km2 (8,800 sq mi)
CountryFlag of Brazil.svg  Brazil
States
Conservation
Conservation status Critical/Endangered
Habitat loss95% [2]
Protected0.39% [2]

The "Pernambuco" interior forests (in reality Paraiba and Pernambuco forest/states and not only "Pernambuco") is an ecoregion of the Tropical and subtropical moist broadleaf forests Biome, and the South American Atlantic Forest biome. It lies in eastern Brazil between the coastal Pernambuco coastal forests and the dry Caatinga shrublands of Brazil's interior.

Contents

Setting

The Pernambuco interior forests cover an area of 22,700 square kilometers (8,800 sq mi), extending across portions of Paraíba, Pernambuco, and Alagoas states. They extend from the Curimataú River in the north to the São Francisco River in the south.

The Pernambuco interior forests lie inland from the Pernambuco coastal forests, extending from sedimentary plateaus near the coast up the eastern slopes of the Borborema Plateau. In the northern portion of the ecoregion, the interior forests lie close to the coast, just behind the coastal Rio Piranhas mangroves and Atlantic coast restingas.

Climate

The climate is tropical. Annual rainfall ranges from 1,250 to 1,750 mm, with a dry season from October to March.

Flora

The predominant forest type is the four-tiered (emergent, canopy, understory, and forest floor) Atlantic semi-deciduous forest, with emergent trees reaching up to 35 metres (115 ft). Many trees shed their leaves during the October to March dry season.

Characteristic emergent and canopy trees include Astronium fraxinifolium (family Anacardiaceae), Enterolobium contortisiliquum (Leguminosae), Cordia trichotoma (Boraginaceae), and Tabebuia chrysotricha (Bignoniaceae). The Pernambuco interior forests are home to the largest remaining populations of Brazilwood or Pau-Brasil, (Caesalphinia echinata)

Fauna

Many species are endemic to the Pernambuco interior and coastal forests. Bird species include the buff-breasted tody-tyrant (Hemitriccus mirandae), white-winged cotinga (Xipholena atropurpurea), seven-colored tanager (Tangara fastuosa), and yellow-faced siskin (Carduelis yarrellii).

Conservation and threats

Only 5% of the original forest remains; the rest has been cleared for timber and fuel wood, agriculture, or cattle ranching. Most of the remaining forest remnants are small (1-10 hectares) and species-impoverished.

As of 1997, only three protected areas covered portions of the ecoregion, protecting an area of 90 square kilometers of forest. The Pedra Talhada Biological Reserve, in Quebrangulo, Alagoas, is an important refuge for the endangered and threatened birds of the ecoregion.

See also

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References

  1. 1 2 Hoekstra, J. M.; Molnar, J. L.; Jennings, M.; Revenga, C.; Spalding, M. D.; Boucher, T. M.; Robertson, J. C.; Heibel, T. J.; Ellison, K. (2010). Molnar, J. L. (ed.). The Atlas of Global Conservation: Changes, Challenges, and Opportunities to Make a Difference . University of California Press. ISBN   978-0-520-26256-0.
  2. 1 2 "Pernambuco interior forests". Terrestrial Ecoregions. World Wildlife Fund.