Flora and Fauna: Argentine Biogeography

El Sur del Sur
The Southernmost South

ARGENTINE BIOGEOGRAPHY

NEOTROPICAL REGION

It corresponds almost exactly with what is known as "Latin America", spreading from the Sonora Desert, in the frontier between USA and Mexico, up to the southern limit of continental South America. A narrow band at both sides of Argentina and Chile southern Andes, as well as Isla Grande in Tierra del Fuego and the remaining southern islands are not encompassed by it.
The large continental mass of South Americ kept separate from the remaining continents for several million years, which brought about the peculiar isolated development of the biota which caracterizes it.
According to various differentiating features, the Neotropical Region has been divided into five Domains (Caribbean, Guyanese, Amazonian, Chaco and Patagonian-Andean), the three last ones being within the Argentine territory.

ANTARCTIC REGION

Antarctic Region. 18 k document.

It includes the southern end of South America, New Zealand and Antarctica. These three masses of land used to be linked, corresponding to the southern part of the Gondwana supercontinent. Despite the distances which today separate one from the other, the three members of the regions have flora and fauna affinities.

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