The rain forest or tropical rain forest is the largest terrestrial ecosystem abundance of animals and plants (quantity and diversity ) of Costa Rica . In Costa Rica occupies 5.5% of the territory . It is full of life , many species of birds, insects , poisonous frogs , monkeys .
The rainfall is 1800-4000 mm annual average and high temperature. The dry period ranging from 0-2 months. It is an evergreen forest with a very high density .
It is divided into different strata 4-5 . The understory is abundant predominantly evergreen species . The mean canopy height can reach 30 to 40 feet high. In undisturbed forests can find more and 150 arboreal species . In Costa Rica is located in the lowlands ( coastal plains ) in the northern zone and the Caribbean , along with those of the center and south of the Pacific as major regions , but there are many fragmented areas throughout the country. The region Upala , San Carlos and the upper parts of the Nicoya Peninsula are representative. We present a cold transition area on the Pacific of the Cordillera de Guanacaste Tilaran and between Athens and Santiago , and in the valley of Turrialba . Also located an area of cold - wet transition northwest of Limon in San Carlos and around Caño Upala and Black . The forests on the Pacific slope of the mountain ranges are mainly atmospheric association due to a longer dry season caused by the effect of " rain curtain " .
This forest is typically composed of multiple layers , with large species , semi-deciduous or evergreen . Canopy trees reach 40 to 50m tall, wide and high - tops unbranched the first 25 or 35m, less than 100 cm in diameter at breast height ( dbh ) , and supports thin , tall and smooth . Usually colored crust . The next layer , the understory , has trees 30m tall, narrow glasses . Palms abound , especially Sheelea rosrata , except in the transition area cold . Between 8 and 20m high trees found in the lower stratum , with round or conical cups , leaves often have elongated tips or apices . The shrub layer consists of broadleaved species , abundas dwarf palms and lianas or vines and epiphytes and vines.
The vegetation is represented by bromeliads , mosses , lichens and orchids , as well as countless trees such as laurel (Cordia aliodora ) caobilla ( Carapa guianensis ) , oak coral ( Terminalia amazonia ) , golden fruit (Virola koschnyi ) ojoche ( Brosimum alicastrum , cedro maria ( Calophyllum brasiliensis ) and botarrama ( Vochysia ferruginea ) .The animals that can be found in this ecosystem are varied : Green Basilisk ( Basiliscus plumifroms ) , green iguana ( Iguana iguana) , two-toed sloth ( Choloepus hoffmanni ) , three-toed sloth ( Bradypus variegatus ) , red-eyed frog ( Agalychnis callidryas ) , howler monkey ( Alouatta palliata ) , coati ( Nasua narica ) , among others. The big cats of Costa Rica are found here, such as the puma ( Puma concolor ) , jaguar ( Panthera onca ) , jaguarundi (Puma jagouroundi ) , ocelot ( Leopardus wiedii ) and ocelot ( Leopardus pardalis) . The large number of exotic birds is awesome as well as butterflies and reptiles , such as the American crocodile ( Crocodylus acutus ).
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