Ecoregions of South America

The Atacama Desert region, stretching over a formidable 1,600 km along the Pacific coast of Chile, is not merely a geographical marvel but an intricate mosaic of history, ecology, and adaptation. Beyond its arid expanses lies the Atacama Desert Ecoregion—an ecological classification that extends its influence across adjacent areas.

The Caatinga is a vast and unique semiarid biome that covers northeast Brazil and is home to various ecosystems, making it the largest dry forest region in South America. This region is characterized by its arid, thorny, and seasonal vegetation, which provides habitats for more than 2,000 species. Recognized as a biodiversity hotspot, the Caatinga faces significant threats, primarily due to land conversion for agriculture and cattle ranching.

The Cerrado, South America's largest savanna region and the most extensive ecoregion in the Americas unfolds across central Brazil, extending its natural wonders into northeastern Paraguay and eastern Bolivia. This savanna, boasting unparalleled biological richness, is a global treasure, home to 5% of the planet's animals and plants and harboring an extraordinary menagerie of life.

The Gran Chaco, or simply Chaco, is a large and intriguing region in eastern Bolivia, western Paraguay, northern Argentina, and a small section of Brazil. It is an alluvial plain with diverse ecosystems, including South America's second-largest forest after the Amazon. There are two main ecoregions, the Humid Chaco and the Dry Chaco, which differ in climate, vegetation, and ecology.

Stretching across the expansive landscapes east of the Andes Mountains in northwestern South America, the Llanos, also known as Los Llanos, emerges as a vast tropical grassland plain of remarkable ecological diversity. Nestled within the borders of Colombia and Venezuela, this ecoregion of flooded grasslands and savannas paints a vivid portrait of natural grandeur.

The Pantanal is the world's largest tropical wetland, predominantly situated in the Center-West Region of Brazil. This vast seasonal floodplain, however, also stretches into northeastern Paraguay and southeastern Bolivia, creating a stunning ecological masterpiece. Its diverse landscapes and vibrant ecosystems are genuinely captivating.

The Magellanic Steppe is a distinctive biome within the broader Patagonian Desert, characterized by its unique vegetation and landscape features. It is named after the famous explorer Ferdinand Magellan, who navigated the region during the early 16th century. This steppe is a significant component of the arid Patagonian ecosystem, stretching across southern Argentina and Chile.