Biosphere Reserves: PARANÁ DELTA

It is a vast area in the southeast of the Paraná Delta, in the Municipality of San Fernando (Argentina), which due to its natural and social characteristics deserved the international category of Biosphere Reserve granted by UNESCO, through the Man and the Environment Program (MAB). The area is constituted by a large mosaic of natural environments, scattered across many islands that form this delta. There are areas modified by humans and native landscapes. The objective of this protected area is to make conservation and resource use compatible.

The islands of the Paraná Delta owe their existence to the large amount of sediment carried by the water of the Paraná. The sediment banks are colonized by reeds, ceibos, marshes, and other species that contribute with their roots to consolidate the islands that are subsequently colonized by other species.

It is divided into three main regions: the Upper Delta, the Middle Delta, and the Lower Delta or in formation, and it is considered a "transition zone" between Mesopotamia and the Pampas plain. Species from both regions, associated with wetlands, converge in the Paraná Delta. Many of them were hunted to extinction: the jaguar reached Buenos Aires and is the origin of the name of the Tigre party. The marsh deer still finds refuge in the Paraná Delta.

You can find a documentary with a lot of information about the Delta at: https://www.youtube.com/watch?v=EDJ6gepbZGY&frags=pl%2Cwn