Sunday, December 14, 2014

Kanneliya Forest Reserve - Sri Lanka

Kanneliya forest which is a part of Kanneliya-Dediyagala-Nakiyadeniya (KDN) forest complex is located in the south-western part of Sri Lanka about 35km northeast of the city of Galle.  The total extent of the KDN is 10,867 hectares and the extent of Kanneliya forest is 6,100 hectares. The history of Kanneliya is a fascinating story of endurance of the nature. It is a forest which was able to resurrect as the most extensive surviving block of low land rainforest next to Sinharaja, after heavy selective logging operations continued nearly for four decades.

The Forest department declared Kanneliya Forest as a Forest Reserve in 1934. Later in early 90’s it was designated as a conservation area. Kanneliya-Dediyagala-Nakiyadeniya forest complex was declared as an International Biosphere Reserve under the Man and Biosphere Program of UNESCO in the year 2004. Kanneliya Forest Reserve has been identified as a suitable area for in situ conservation of Crop Wild Relative species.

The Kanneliya forest reserve is accessible by Koralegama – Kanneliya road. It is minor motor able road off Udugama- Hiniduma main road this road leads to the Kanneliya forest and ends just before the main entrance of the forest at Nannikitha Ela. A bridge has been constructed to cross the Nanikita Ela. An old logging road continues from that point.

The general landscape of KDN complex consists of ridges, valleys and low altitude isolated hills. The mean annual rainfall varies from 3500- 4500mm with an average annual rainfall of about 4445mm mainly during the southwest monsoonal period from mid-May to the end of September. The mean monthly temperature is around 27◦ C, with a diurnal range of 4-5◦ C. Maximum temperature occurs from mid-March to mid-May.

The KDN complex is considered as one of the floristically richest areas in South Asia. It is categorized as a lowland wet evergreen forest. These forests show a luxuriant growth with the characteristic multistoried structure and diversity of species. The natural vegetation of KDN forests is dominated by Shorea- Dipterocarpus- Mesua association (Na-Dun association). Dipterocarpus (Hora family) dominates the forest structure composition of Kanneliya. As a result of past logging, much of this forest remains today as a secondary forest. However, the species richness and diversity of flowering plants are still relatively high in the forest.

There are 301 floral species in Kanneliya. These include trees, shrubs and herbs of which 52% has been identified as endemic to Sri Lanka, 15 species as being globally threatened and 26 species as being nationally threatened. The Kanneliya forest is notable for having the highest percentage of endemic woody species (60 per cent) of any single wet zone forest.
The relatively undisturbed and complex environment of KDN forests provides a home to a richly diversified fauna with a high degree of endemism. A total of around 220 faunal species with 41 endemics have been recorded from the KDN forest complex and adjacent forests.
The KDN forest complex provides an ideal place to observe wet zone forest birds including majority of the endemic birds in the island within a range of diverse habitats such as heavily forested areas, riverine forests, disturbed areas, and peripheral village home gardens. The stratification of the forest vegetation has also created diverse habitats for birds and it has enabled the formation of mixed species foraging bird flocks. These flocks sometimes comprise of 30-35 species of birds are a spectacular sight which add colour to the forest environment.
The most recent studies show that around 120 bird species have been recorded from KDN forest complex. This includes 14 of the 23 endemic species in Sri Lanka. Birds of the KDN forest complex vary in size from the tiny Pale Billed Flower pecker to the very large Black Eagle and range from those found in the under growth such as Dark- fronted Babbler to canopy dwellers such as Red Faced Malkoha.
Several species of toads, frogs, tree frogs are found in the KDN forest complex, including a number of rare endemic amphibians such as Nannophrys guentheri, Ramonella palmata and Icthyophis glutinosus. 
A variety of butterflies can be seen in this forest due to the richness of the flora. These include two endemic species namely the Bird Wing and the Ceylon Rose.
A rich array of geckos, skinks and lizards and serpents are found in the area. The largest serpent in Sri Lanka, the Indian Python can also be found in KDN forests.
One third of the fresh water fish fauna in Sri Lanka is endemic and the tributaries of Gin ganga which originates from Kanneliya forest harbour most of these fish species. They distributed along the different parts of streams according to the state of water currents and the substrate condition. Majority of the land molluscs found in the KDN forest complex is endemic.
Several species of small mammals are also found in the area, and the Sambar being the largest herbivore. Leopard, the largest carnivore in Sri Lanka can also be observed. Giant squirrel and Purple faced monkey are some of the commonest mammals present in Kanneliya.
KDN forests are important hydrologically as they protect the headwaters of major rivers in southern Sri Lanka, Gin Ganga and Nilwala Ganga. Kanneliya forest is ranked among the most important natural forest in the southern Sri Lanka as it has a very high number of streams. These streamslets lead into 3 major streams which are river tributaries of the “Gin ganga’.  Two picturesque waterfalls originate from one of the tributaries, Anagi-mala-ella and. Naran-Gas-Ella.
There are 78 villages surrounding the KDN forests. Of these, 24 villages are immediately adjoining the forest complex. This includes 16 villages adjoining Kanneliya. The rural economy of villages around KDN complex is based primarily on tea and paddy small holdings. The homesteads are cultivated with crop mixtures. Some villagers are engaged in small scale cottage industries based on Kitul palm, rattan and bamboo Villagers depend on the forest for fuel wood, small wood and more specifically non wood forest products including medicinal herbs. There are three hermitage type temples within these forests and it is evident that the villages have had close religious associations with the forest complex.
There are several nature trials within the forest designated to give first hand experiences to eco tourists who are eager to expedite this treasure trove of nature.
·         Anagimala Ella (Waterfall)
·         Wavul Lena (Bat Cave)
·         Narangas Ella (Waterfall)
·         Lihinigal Lena (Cave)
·         Kabbale Kanda Peak and Access  
      Source - Sri Lanka Forest Department










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