Sri Lanka's tropical rain forest, the Sinharaja is a UNESCO World Natural Heritage Site. One of the few virgin forests left in the world. Visitors are required to obtain permits from the Wildlife Department in order to visit this sanctuary. Streams, springs, rivers, waterfalls, leopard, monkeys, butterflies and moths, rare trees, valuable shrubs and medicinal herbs are all found within its green canopy. A trek along prescribed paths would provide nature lovers with a never to be forgotten experience of sights and sounds.
The largest mammal in the forest is the rarely spotted leopard, also infrequently glimpsed are the rusty spotted and wild fishing cats. Sambhur, barking deer and wild boar browse on the forest floor. The more common troops of purple-faced langur monkeys will chatter and move through the trees above you, but you're more likely to hear them than actually see them. There are also rats, shrews, giant squirrels, porcupines, civets, mongooses, venomous snakes, 20 species of birds and 45 species of reptiles!.
IUCN Management Category II (National Park), Biosphere Reserve, Natural World Heritage Site - Criteria ii, iv
Geographical Location Situated in the south-west lowland wet zone of Sri Lanka, within Sabaragamuwa and Southern provinces. It is bounded on the north by the Napola Dola and Koskulana Ganga, on the south and south-west by the Maha Dola and Gin Ganga, on the west by the Kalukandawa Ela and Kudawa Ganga and on the east by an ancient footpath near Beverley Tea Estate and by the Denuwa Kanda. 6°21'-6°26'N, 80°21'-80°34'E
Date and History of establishment -Notified a national heritage wilderness area on 21 October 1988 (Gazette No. 528/14). Most of the area was originally declared a forest reserve on 3 May 1875 under the Waste Lands Ordinance and notified in the Ceylon Government Gazette No. 4046, dated 8 May 1875, while the rest was notified a proposed forest reserve in the early 20th century. Sinharaja Forest Reserve, comprising the existing and proposed forest reserves, was declared a biosphere reserve in April 1978, and inscribed on the World Heritage List in 1988.
Area- According to Gazette No. 528/14, the total area of the national heritage wilderness area is 18,899 acres and 12 perches (7,648.2ha). The area of the biosphere reserve and World Heritage site as cited in the respective nominations is 8,864ha, of which 6,092ha is forest reserve and 2,772ha is a proposed forest reserve.
Land tenure- State
Altitude- Ranges from 300m to 1,170m (Hinipitigala Peak).
Climate- Based on meteorological records gathered from in and around Sinharaja over the last 60 years, annual rainfall has ranged from 3614mm to 5006mm and temperatures from 19°C to 34°C. Most precipitation emanates from the south-west monsoons during May-July and the north-east monsoons during November-January. Conditions are dry in February
Flora- The vegetation of Sinharaja may be described either as a tropical lowland rain forest or tropical wet evergreen forest.some striking characteristics of the forest are the loftiness of the dominant trees, the straightness of their bole, the abundance of regeneration and the diversity of species. Average height of the trees varies between 35m - 40m.some individuals rise even upto 50m.The vegetation of Sinharaja is that of humid wet evergreen forest type with a high degree of endemism. In fact some families such as Dipterocarpaceae show an endemism more than 90%. The untapped genetic potential of Sinharaja flora is enormous. Out of the 211 woody trees and lianas so far identified within the reserve 139 (66%) are endemic. Similarly, high levels of endemism are perhaps true for the lower plants like ferns, epiphyts as well.out of 25 general endemic to Sri Lanka 13 are represent in Sinharaja. The Total vegetation density, including trees, shrubs, herbs and seedlings has been estimated to be around 240,000 individuals per hectare, of which 95% comprise individuals of the ground layer bellow 1m in height.The density of trees, lianas above 30 cm girth at breast height, ranges between 600 - 700 individuals per hectare while the number of merchantable individuals of trees of girth grater than 150cm ranges between 45-55 individuals per hectare.
Fauna- Studies on the fauna of Sinharaja have revealed that there is a high degree of endemism among the butterflies, fish, amphibians, reptiles, birds and mammals are greater than 50%. There have been reports of sightings of a few animals in the eastern Secter.The most common deer species is the Sambhur The Monk deer and Barking deer are also found within the reserve. Leopards are very seldom sighted, but their frequent presence has been confirmed by tracks and other signs. Badger Mongoose and the Golden Palm Civet have been occasionally sighted. The most commonly seen primate is the Purple - faced Leaf Monkey.Although the elephants said to be common in the past, there have not been reports of sightings during the last 15 years.Out of the Birds recorded in the western sector of the reserve, 72% were resident non-endemic and 13% migrants. One of the most interesting and colorful spectacles to be found in the in the Sinharaja is the presence of mixed species of foraging bird flocks, a phenomenon commonly found in rain forests total of 100 such flocks were systematically observed, and studies have revealed that some flocks contained 48 species including 12 endemic species. The rare endemic birds to be seen in Sinharaja are the Red-faced Malkoha, the Sri Lanka Blue Magpie, the Ashy-headed Barbbler, and the White - headed Starling and the Green ・billed Coucal the rarest of Sri Lankan birds. The Agamids are the best represented group of reptiles, the most common being the Green Garden Lizard. Of Special significance are the sightings of Calotes Liolepis an arboreal species, the rearest of all agamids found in the island .The only Tortoise recorded in the reserve is the Hard - shelled Terrapin, while of the species of skinks, the spotted skink can be seen often. Among the snakes The Green Pit Viper and Hump-nosed Viper are commonly found in this forest and are endemic to Sri Lanka.
The amphibians are fairly well represented in the reserve and nine endemic species have been identified. The endemic Torrent toad and the common house toad. In most streams and marshes, the Wrinkled frog and The Sri Lankan Reed frog is also found in Sinharaja. Ramanella palmata a rare endemic species is the only microhylid recorded so far while the yellow-banded Caecilian is the only apodan recorded.
