Ecoregions of Argentina

The Paraná Flooded Savanna ecoregion is a vast area that spans across the floodplains of the middle and lower Paraná River, along with its tributary, the Paraguay River. This region is home to diverse flora and fauna, crucial for maintaining the ecological balance in Argentina and Paraguay. This region's intricate network of waterways and lush marshlands provides a secure habitat for countless plant and animal species.

The Patagonian Grasslands ecoregion is situated in the southern part of Argentina. It is an example of nature's resilience in challenging conditions. This area falls under the biome of temperate grasslands, savannas, and shrublands, which spans across the Neotropical realm. The region is a testament to the stunning beauty and biodiversity of the southern landscapes of Argentina.

The Semi-arid Pampas ecoregion, nestled in Argentina's heart, spans the Buenos Aires, Pampa, San Luis, and Cordoba Provinces. Forming part of the vast Pampas lowland plains region, this temperate grassland landscape is situated between the Humid Pampas grassland to the east and the drier Argentine Espinal grassland to the west; the Semi-arid Pampas boasts a unique blend of flora and fauna, and geological features.

Nestled along the eastern slopes of the Andes mountain range, the Southern Andean Yungas ecoregion stands as a lush and mesic haven amidst the arid surroundings of southwestern Bolivia and northwestern Argentina. This tropical and subtropical moist broadleaf forest ecoregion, part of the larger Yungas ecosystem, offers a unique and biodiverse landscape.

The Southern Cone Mesopotamian savanna, also known as the Argentine Mesopotamian grasslands, is an ecosystem in northeastern Argentina. It combines woodland and grassland, with trees widely spaced apart, allowing for a continuous layer of herbs. Despite its ecological significance, the Southern Cone Mesopotamian savanna is one of the least protected ecoregions in Argentina.

The Uruguayan savanna, also known as the Brazilian-Uruguayan savanna, stretches across the southern region of the Brazilian state of Rio Grande do Sul, encompasses the entirety of Uruguay, and extends into a small portion of Argentina along the Uruguay River. This ecoregion, characterized by subtropical grasslands and savannas, offers a mosaic of habitats, including medium-tall grasslands, gallery forests, palm savannas, and submontane forests.

The Valdivian temperate forests ecoregion is located in the Southern Cone of South America. It covers a narrow strip between the western slope of the Andes and the Pacific Ocean. The forests are characterized by their dense understories of bamboo, ferns, and evergreen trees.