Ecological Region

The Humid Chaco ecoregion occupies the lowlands of the Paraná River, covering portions of northeastern Argentina, the center of Paraguay, and small areas in southwestern Brazil. The natural vegetation is a mosaic of grasslands, palm savanna, and forest.

The humid pampas occupy the plains in the east of Argentina. They are one of the highest human-populated areas in Argentina, taking up most of the province of Buenos Aires. Horizontal plains and very soft undulations with low peaks characterize the relief of this area.

The Juruá-Purus Moist Forests are in northwestern Brazil, south of the upper Amazon River. The ecoregion covers the valleys between the upper Amazon to the Purus River. It is part of the Amazon Biome and is mainly covered with evergreen tropical rainforests with a dense high canopy.

The Leeward Islands dry forests ecoregion covers small areas of the Leeward Islands in the eastern Caribbean, characterized by moderate relief and rainfall. Unfortunately, much of this ecoregion has been drastically reduced due to deforestation.

The Leeward Islands moist forests ecoregion covers the specific areas of those islands, situated within the Leeward Islands chain in the eastern Caribbean, characterized by rugged, volcanic mountains covered in a moist tropical forest.

The Leeward Islands xeric scrub ecoregion covers the dry non-forested areas of the Leeward Islands in the eastern Caribbean. The ecoregion is present mainly on the low elevations of the peripheries of the islands.

The Lesser Antilles mangroves comprise coastal margins of islands at the southeastern edge of the Caribbean Sea from Anguilla in the north to Grenada in the south. The most significant mangrove areas are in Antigua and Barbuda, Guadeloupe, Martinique, and the US Virgin Islands.

The Magdalena Valley dry forests are located between the Eastern and Central cordilleras of the Colombian Andes, along the dry inter-Andean valley formed by the Magdalena River, which flows north through the Andes to the Caribbean Sea.

The Magdalena Valley montane forests ecoregion is located in the Andes mountains of central Colombia. The ecoregion covers the higher land on both sides of the valley of the Magdalena River in the Colombian Andes.

The Magellanic subpolar forests are a terrestrial ecoregion of southernmost South America, covering parts of southern Chile and Argentina. Lying west of the Andes Mountains, this temperate broadleaf and mixed forests ecoregion is the world's southernmost forest.