An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm, BioScience, Volume 67, Issue 6, June 2017, Pages 534–545; Supplemental material 2 table S1b. However mangroves are being destroyed for the expansion of human settlement and for aquaculture. "Relocating wet zone elephants to dry zone centre: Gentle giants destined to leave Sinharaja?". Evergreen Forest" which, outside of Sri Lanka, is found only locally in the southeast coastal region of India. Thiniya, (Shorea congestifolia) Duna (Shorea stipularis), Duna (Shorea zeylanica) are some of the emergents found in Sinharaja. Our unique geological formation also plays a major role in the diversity of our vegetation.

They are also known as cloud forests. There are some species that are common to both types of forests, but some are found only in the semi evergreen forests. Their structure is also less complex with all trees more or less arranged in a single layer. At higher elevations they change to montane rain forests. The present study was carried out in the Hambantota district in the Southeastern region of the dry zone of Sri Lanka which is characterized by tropical dry evergreen mixed forests and tropical thorn forests. The dry-zone dry evergreen forests most closely resemble the The dry-zone dry evergreen forests are home to most of the Sri Lanka's 6000 Eric Dinerstein, David Olson, et al. These forests are dominated by Palu (Manilkara hexandra) (Sinhala – Palu), Satin (Chloroxylon sweitenia) (Sinhala – Burutha), Drypetes sepiaria, Feronia limonia, Vitex altissima, Syzygium spp., Drypetes sepiaria and Chukrasia tabularis.The scrub and regenerating forests are characterized by Bauhinia racemosa, Pterospermum suberifolium, Cassia fistula and Dichrostachys cineria. They are the following:  The wet patana grasslands, found around and above 1800 m altitude, are best seen in Horton Plains and around Nuwara Eliya. Tropical rainforests are characterised by a multi-storeyed vegetation where the crowns of domin… Mud skipper; a fish who enjoys a walk, the Fiddler crab with one big claw, are some. The southwest region and the central hills of Sri Lanka have the most luxuriant forest cover. The Sri Lanka dry-zone dry evergreen forests are a tropical dry broadleaf forest ecoregion of the island of Sri Lanka.The ecoregion covers an area of 48,400 square kilometers (18,700 sq mi), which includes most of the island of Sri Lanka, with the exception of the islands' southwestern corner and central … Of the twelve endemic genera of flora of the island, eleven are confined to rainforests. The protection of these forests, which are catchments, will ensure that the rivers have water right throughout the year especially during the dry weather. They cover a total of 1.1% of our land area. 93-103. Pollution and siltation affects the quality of the trees Thus we find that the mangroves are fragmented exploited and degraded. The vegetation dwelling tree frogs (Genus Philautus), who lay eggs in crevices and leaves and hatch out as tiny adults, are commonly found. Sri Lanka dry-zone dry evergreen forests Last updated February 23, 2019. The island of Sri Lanka with only a land area of around 65500 sq. Unlike the other forest types in Sri Lanka, rainforest are characterized by 5 main canopy layers as Emergent layer, Canopy, Mid canopy, Understory and Forest floor. They have low trees and thorny undergrowth dominated by thorny shrubs. One of the smallest terrestrial mammals in Sri Lanka, Kelaart’s Long-clawed Shrew (Feroculus feroculus), is found only in the mountains of this eco region while the endemic Pigmy Lizard (Cophotis ceylanica) is found only in cloud and montane forests above 1300 m.Elephants once roamed in Sri Lanka’s Cloud forests, where they formed tunnel-shaped paths through the undergrowth of mainly Strobilanthes spp. Current Status of Asian Elephants in Sri Lanka. kM, is well endowed with the mother Nature's blessings, one can say. They cover all the ecological and climatic regions of the country.The Forest Department is responsible for the forest areas that do not come within the purview of the Department of Wildlife Conservation. The dry patana grasslands, located between 500 – 1000 m elevation, are relatively widespread, occurring in the Uva basin, and around Gampola, Nawalapitiya, Hantana and Rakwana. After the villus are inundated by the flood waters of the rivers, the waters recede and leave behind silt which is rich in nutrients and which has come with the waters from upstream. They grow and increase at the expense of the indigenous species, which as a result die out. These thorny trees are spreading across the Hambantota and Bundala landscape like wild fire and choking up the natural vegetation. Trees are green throughout the year and since there aren’t any significant climatic variations within a year, trees continue to grow all round the year without shedding leaves at a specific time. Comments. (2011). They are periodically inundated by sea water. Deciduous is where the leaves fall off periodically and grow again. Lunumidella (Melia duba), Pihimbiya ( Filicium decipiens) and Hulanhik (Chukrasia)are some of these tree species.These forests cover the extreme Southeastern and Northwestern regions of the country, which have very long dry periods. Journal of the National Science Foundation of Sri Lanka Reading: FLORISTIC COMPOSITION AND MEDICINALLY IMPORTANT PLANTS IN THE UNDERSTOREY OF THE TROPICAL DR... Share: Download. (2017). In the Bundala National Park there are two invasive species. Of the twelve endemic genera of flora of the island, eleven are confined to rainforests. Both these are very similar to those of India’s Western Ghats.Tropical rainforests are characterised by a multi-storeyed vegetation where the crowns of dominant trees form a closed canopy, that covers the full forest, at 25m to 30m on top with with taller species growing to rise up to about 45m. This is mainly to meet the country’s need for timber products.Despite the protection that has been afforded, our forest cover has declined from 80% in 1881 to 24 % in 1992.


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