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The land bridge was completed 2.8 million years ago, when the Isthmus of Panama was formed, linking the two continents for the first time in tens of millions of years. The resulting Great American Interchange of animals and plants shaped the flora and fauna of the Central America bioregion. [2]
Vertebrates of Panama (4 C, 19 P) Pages in category "Fauna of Panama" The following 121 pages are in this category, out of 121 total.
The Isthmus of Panama. The Isthmus of Panama (Spanish: Istmo de Panamá) [1] is the narrow strip of land that lies between the Caribbean Sea and the Pacific Ocean, linking North and South America. It contains the country of Panama and the Panama Canal. Like many isthmuses, it is a location of great geopolitical and strategic importance.
Central America is distinct from the remainder of North America in being a tropical region, part of the Neotropical realm, whose flora and fauna display a strong South American influence. The rest of North America is mostly subtropical or temperate, belongs to the Nearctic realm, and has far fewer species of South American origin.
Armadillos are small mammals with a bony armored shell. Two of twenty-one extant species are still present in Panama; the remainder are only found in South America, where they originated. Their much larger relatives, the pampatheres and glyptodonts, once lived in North and South America but went extinct following the appearance of humans.
Its fauna and flora are distinct from the Nearctic realm (which includes most of North America) because of the long separation of the two continents. The formation of the Isthmus of Panama joined the two continents two to three million years ago, precipitating the Great American Interchange, an important biogeographical event.
In other phytogeographic systems, Central America is a region of Northern America, with the bi-coastal Isthmus of Panama region a distribution ecotone of Northern and Southern America. Note that Mexico is not included in this region, but within Northern America under Flora of Northern America .
This is a list of ecoregions in Panama as defined by the World Wildlife Fund and the Freshwater Ecoregions of the World database. Tropical and subtropical moist broadleaf forests [ edit ]