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Showing posts with label Environment. Show all posts
Showing posts with label Environment. Show all posts

Monday, October 8, 2012

List of Endemic birds Sri Lanka



Sri Lanka is the world famous bird living place which had recorded 427 species, 250 species are resident and 26 species are endemic to the island. Most of endemic birds are living in the wet zone at sinharaja forest which is published as world heritage. List of the endemic birds is given bellow.



English Name

Scientific Name
 SinhalaName
1
Ceylon Junglefowl
Gallus lafayettii (Phasianidae)
Wali Kukula
2
Ceylon Spurfowl
Galloperdix bicalcarata (Phasianidae)
Lanka Haban Kukula
3
Layard's Parakeet
Psittacula calthorpae (Psittacidae)
 -
4
Green-billed Coucal
Centropus chlororhynchos (Cuculidae)
-
5
Sri Lanka Woodpigeon
Columba torringtoni (Columbidae)
Mailagoya
6
Sri Lankan Hanging Parrot
Loriculus beryllinus (Psittacidae)
Lanka Giramalitta
7
Chestnut-backed Owlet
Glaucidium castanonotum (Strigidae)
-
8
Red-faced Malkoha
Phaenicophaeus pyrrhocephalus (Cuculidae)
Wataratu Malkoha
9
Sri Lankan Gray Hornbill
Ocyceros gingalensis (Bucerotidae)
Kendetta
10
Sri Lankan Bush Warbler
Elaphrornis palliseri (Sylviidae)
-
11
Yellow-eared Bulbul
Pycnonotus penicillatus (Pycnonotidae)
Oluwa Rathu Kottoruwa
12
Sri Lanka Blue Magpie
Urocissa ornata (Corvidae)
-

13
Ashy-headed Laughing-thrush
Garrulax cinereifrons (Timaliidae)
-
14
Orange-billed Babbler
Turdoides rufescens (Timaliidae)
Ratu Demalichcha
15
Sri Lanka White-eye
Zosterops ceylonensis (Zosteropidae)
Lanka Sithasiya
16
Sri Lanka Whistling Thrush
Myophonus blighi (Turdidae)
-
17
Sri Lanka Myna
Gracula ptilogenys (Sturnidae)
Lanka Salalihiniya
18
White-faced Starling
Sturnus albofrenatus (Sturnidae)
-
19
Spot-winged Thrush
Zoothera spiloptera (Turdidae)
Lanka Thithpiya Thirasikaya
20
Dull Verditer Flycatcher
Eumyias sordidus (Muscicapidae)
-

21
Legge's Flower pecker
Dicaeum vincens (Dicaeidae)
-
22
The Black-capped Bulbul
Pycnontus melanicterus
Hisakalu Kondaya

Endemic birds Sri Lanka


Giramaliththa


Haban Kukula




Tuesday, August 28, 2012

SInharaja Forest


Sinharaja Forest Reserve is 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 (stream) and Koskulana Ganga (river),
  • south and south-west by the Maha Dola and Gin Ganga,
  • west by the Kalukandawa Ela and Kudawa Ganga
  • east by an ancient footpath near Beverley Tea Estate and by the Denuwa Kanda. Geographic location can be describe as latitude 6°21'-6°26' and , 80°21'-80°34'.


    View Larger Map
Forest was notified as a heritage wilderness area on 21 October 1988 by the Gazette, no 528/14.  Before this act, most of the land of this area has been protected by Waste Land Ordinance on dated 3rd May 1875.  According to the act, total area of this reserve is 18899 acres and 12 perches and those areas are owned by government.

Sinharaja Forest Reserve is a one of the world famous rainforest in Sri Lanka. It’s a one of the world heritage. It was notified as a biosphere reserve as 1978 and notified as world heritage in 1988.  Sinharaja has huge biodiversity. Large numbers of animals, floras, birds and other kind of animals are living in Sinharaja. Among those, lot of floras and animals are endemic to Sri Lanka or Sinharaja. More than twenty endemic birds can be shown in this area.




  • Ceylon Lorikeet
  • Layard's parakeet
  • Jungle and Spur Fowl
  • Ceylon Wood Pigeon
  • Grey Hombill
  • Spotted wing Thrush
  • Laughing Thrush
  • Ceylon Blue Magpie
  • White Headed Starling


Sinharaja is based  on cool climate and it recorded rainfall has reanged from 3600mm to 5000 mm and average temperatures from 18o C to 34 o C according to department of climatology.  Mainly rainfall is based on south west monsoon during May to July months and north – east monsoon during November to January.

Lot of kind of  fauna are living within this forest.  Preliminary list of the those,


  • Mammals
  • Birds
  • Reptiles
  • Amphibians
  • Fishes
  • Butterflies


Percentage of endemism is high among those all kind of faunas. When the consider of the birds, 20 of species can be seen in the forest out of 23 species endemic to Sri Lanka. Endemism among mammals and butterflies also greater than 50% . when the consider about threatened animals, those are leopard, Indian elephant .

According to the studies did by the Silva, 1985, there are two villages inside the forest. Those are situated in the south west area and north western sector of the reserve. Currently more than 5000 peoples are living in those villages. Their main occupation is related for the forest. Small number of peoples cultivate tea or rubber. At present visitors are few in numbers, mostly they are naturalists. Small entrance fee is charged for a person and it valid for a 6 pm of this day. Currently entrance  fee for a local visitor, 40 rupees, for a foreigner, 200 rupees. Accommodation facilities are made for the visitors and currently farther developing.

Monday, August 27, 2012

Environment of Sri Lanka


Sri Lanka is a small island economy with a land area of 65,525 sq km, and located between 5. 54'and 9.52' north latitude of the equator and 79 39' and 81 53' east longitude. The climatic pattern of Sri Lanka is determined by the generation of monsoonal wind patterns in the surrounding oceans. Four basic seasons based on rainfall exist. These are, the south - west monsoonal period during May to September; an inter-monsoonal period during October–November; the north-east monsoonal period from December to February; and another inter-monsoonal period lasting from March to April.

Rainfall is monsoonal, convectional and digressional. 55% of the island's rainfall comes from the monsoons. The mean annual rainfall ranges between 900mm to 6000mm, with an island wide average of about 1,900 mm, which is about two and a half times more than the world annual mean of 750mm. The average rainfall varies from below 1000 mm in the arid regions of the dry zone (North West area and the southeast corner of the island), to over 5000 mm in the wet season in south west of the country. Thus on the basis of the rainfall regimes, the country is divided into three broad climatic zones



Climate Zone of Sri Lanka

These are designated as the Wet Zone, Dry Zone and the Intermediate Zone. Sri Lanka is further divided into 24 agro-ecological regions based on rainfall expectancy, altitude, soil class, and landform.


The physiography of Sri Lanka comprise of three pen plains or erosion plains made up of a central highland massif, rising in tiers from a low gently undulating plain surrounding it and extending to the sea, (the lowest peneplain). Rising from the inner edge of the lowest peneplain, in a steep step of about 300 meters is the middle peneplain with a maximum elevation of about 800 m above sea level. Within it and rising from it in another step of 1000 to 1300 m is the highest peneplain at a general level of about 2000 m above mean sea level, but rising in places to 2300 to 2700 m (P.G. Cooray, 1984, Introduction to the Geology of Sri Lanka). 

A major part of the country is made up of Precambrian crystalline rocks, which constitute 90% of the land area (i.e., the Highland Complex, Vijayan Complex and Wanni Complex), with Miocene limestone sedimentary deposits extending from Puttalam to the Jaffna Peninsula. There are Jurassic deposits in Tabbowa and Andigama of the North-western province, and quaternary deposits in the coastal area (i.e., sand, sandstone, clay and gravels, and coral reef). Inland deposits of coral debris and gem-bearing gravels are mainly found in Sabaragamuva Province

There are 103 natural river basins with catchments ranging from 9 to 10,448 sq. km. Seventeen river basins have catchment areas of over than 1000 sq. km. The Mahaweli river, which is the longest river (3352 km), has the largest catchment area (10448 km ). Out of the 103 river basins, some are perennial flowing continuously throughout the year. The ephemeral rivers flow only during or immediately after periods of precipitation, and their flow is less than 30 days per year. The flows of the intermittent streams occur during certain times of the year and their seasonal flow usually lasts longer than 30 days per year

The mean annual temperature is approximately 27.5 C in most parts of the island's low-lying areas, while it 0 is around 18 C in the higher altitudes of the central part of the country. The average relative humidity varies from 70% during day to 95% in the night. Sri Lanka's varied climatic conditions and topography have given rise to a unique biological diversity. Biodiversity, which means diversity of life forms and the variety of systems in which life exists, is defined at three levels, namely, species diversity, genetic diversity and ecosystem diversity. It is significant that more than 35% of the flora are endemic to the country, while more than 65% of those found in the wet zone are endemic. Standing out among the fauna are 59 endemic species of land/fresh water crabs, while more than 50% of land snails, amphibians, and reptiles are endemic. The majority of the endemic species are found in the wet zone.

Thursday, August 16, 2012

Waterfalls of Sri Lanka


Sri Lanka is one of waterfall paradises of the world. Sri Lanka has many waterfalls. Majority of them include to Nuwaraeliya district and Badulla Districts. Maximum number of waterfalls is available in central province. Highest waterfall of Sri Lanka is Bambarakanda Waterfalls(241m). Bambarakanda, Diyaluma, Dunhinda, Ravana, Bomburu Falls, Ravan Falls, Mana Falls and such several waterfalls at Badulla district. Garandi Falls, Abardeen Falls, St. Clair falls, Devon Falls, Kurundu Oya falls, Ramboda falls and several beautiful falls at Nuwaraeliya District. Bopath Ella falls, Kalthota Duwili Falls and Sinharaja Falls are available at Rathnapura district.

Highest five waterfalls of Sri Lanka    

1. Bambarakanda falls(241m)
2. Kurundu Oya falls (189m)
3. Diyaluma falls (171m)
4. Lxapana falls (115m)
5  Raththna falls (111m)

Details of 100 waterfalls in Sri Lanka

Waterfall Name
Height in meters
Height in feet
Aberdeen Falls
98
322
Ahupini Ella
30
101
Aggara Falls
25
83
Aggara Sub Falls
25
83
Alagiyawanna Falla
4
13
Alawala Devin Panna Falls
45
149
Alawatthagoda Falls
11
37
Alakola Falls
60
205
Allapita Falls
30
100
Ahas Bokku Falls
30
100
Alupola Falls
80
264
Ambanganga Falls
12
40
Anagimala Falls
46
151
Andawala Falls
40
132
Athamala Falls
52
171
Baba Pallam Falls
6
20
Baker's Falls
20
66
Bandura Falls
12
40
Ballamala Falls
52
171
Bambarakanda Falls
263
863
Bomburu Ella Falls
50
166
Bandigewatta Falls
24
80
Bopath Ella Falls
30
98
Dambora Falls
10
34
Dansinanshin Falls
100
341
Delta Falls
60
197
Dessford Falls
20
66
Devon Falls
97
318
Dehena Falls
74
244
Dehigala Falls
30
100
Dehikada Falls
12
40
Dehigolla Falls
30
100
Diyaluma Falls
220
722
Dellawa Dooli Falls
30
100
Demali Falls
105
348
Devagiri Falls
90
297
DivithuraFalls
10
34
Diyakerella Falls
45
149
Dotulu Falls
83
273
Doturugala Falls
30
100
Diyawini Falls
60
205
Doovili Ella
40
131
Dunhinda Falls
63
207
Dun Falls
125
413
Eli Hatha Falls
100
341
Ellepola Falls
18
60
Elgin Falls
25
82
Galdola Falls
100
328
Garandi Ella
100
200
Gartmore Falls
20
66
Galwala Falls
23
76
Gerandi Gini Falls
100
341
Helboda Falls
60
205
Huluganga Falls
75
247
Glassaugh Falls
20
66
Galoruwa Falls
30
100
Glain Falls
10
33
Handapan Ella
200
656
Handun Ella
30
98
Hunnas Falls
60
197
Illumbekanda Doowili Falls
40
132
Jodu Falls
45
149
Kalupahana Falls
10
33
Kirindi Ella
116
381
Kothmale Mahakandura Falls
10
33
Kurunduoya Falls
206
676
Kaluwala Falls
38
125
Kotapola Falls
54
178
Kaluwawetuna Falls
30
100
Laxapana Falls
129
423
Lihinihela Ella
200
656
Lankagama Doowili Falls
23
75
Lankagama Kekuna Falls
11
37
Lankagama Uran Wetuna Falls
20
66
Lovers Leap
30
98
Madanagiri Falls
70
230
Mahakandura Falls
120
394
Mannakethi Ella
60
197
Mapanana Falls
148
486
Meemana Ella
60
205
Mapalalla Falls
45
149
Nakkawita Falls
100
328
Nalagana Falls
40
132
Nanuoya Falls
60
197
Okandagala Falls
63
207
Oolu Ella
200
656
Puna Falls (Ganandi Falls)
100
328
Pandioya
45
149
Pundalu Oya Falls
100
328
Ramboda Falls
109
358
Ranmudu Falls
45
149
Rathna Falls
101
331
Ravana Falls
25
82
Sampath Ella
30
98
St. Clair's Falls
80
262
Surathali Falls
60
205
Seetha Kotuwa Falls
57
197
Sri Pada Falls
75
246
Yaka Andu Ella
60
197

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