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The Diquís Delta or Térraba-Sierpe Delta, located on Costa Rica’s south Pacific coast, is one of the most important of Central America from the biological and cultural perspective.


The largest area of this delta belongs to the Very Humid Pre-montane Forest transition to Tropical life zones, which was replaced largely since 1940, initially by banana plantations and later by other agricultural crops such as the African palm and rice, as well as with forest plantations of introduced species like teak, melina and eucalyptus. Currently there are a few original forest fragments, mainly restricted to the steep hillside of mountains and the surrounding parts of riverbeds. There are expanses which were once used in agriculture and left abandoned; in these grow what is known as thick scrubs (tacotales) by the process of regeneration or secondary forests, in different stages of development.

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Nature 360°

This resource aims to show the area known as Diquis Delta , where you can activate various information sheets of the  natural ecosystems and species found at the site.



Geological History


The oldest rocks in Costa Rica have about 200 million years and are found in the northwest and west.


Southern Costa Rica is geologically younger. about 48 million years ago , on a substrate or regional base called " Complex Nicoya " they began to form other rocks , whose original sediments were deposited in deep water and then more recent , in continental coastal environments.



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