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Saturday, March 20, 2010

The Amazon

The Amazon: The World's Largest Rainforest


The Amazon River Basin is home to the largest
rainforest on Earth. The basin -- roughly the
size of the forty-eight contiguous
United States -- covers some 40% of the South
American continent and includes parts of eight
South American countries:
Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guyana,
and Suriname, as well as French Guiana, a department of France.

Reflecting environmental conditions
as well as past human influence, the Amazon
is made up of a mosaic of ecosystems and vegetation
types including rainforests, seasonal forests, deciduous
forests, flooded forests, and savannas. The basin is
drained by the Amazon River, the world's largest river
in terms of discharge, and the second longest river in the
world after the Nile. The river is made up of over 1,100
tributaries, 17 of which are longer than 1000 miles, and
two of which (the Negro and the Madeira) are larger, in
terms of volume, than the Congo (formerly the Zaire) river.
The river system is the lifeline of the forest and its history
plays an important part in the development of its rainforests.

Lion King (Sinharaja)

Lion King (Sinharaja) Tropical Rain Forest, Sri Lanka


A UNESCO Biosphere Reserve, a world heritage site (1989)

To keep up with the Joneses. This time around,

it would be Indiana Jones with temperature at 20-34

degrees centigrade, humidity at about 87% & annual rainfall of

5000 mm in the 15 million year old Sinharaja Tropical Rain Forest

also known as Lion King Tropical Rain Forest of Sri Lanka, a

living world heritage site. Sinharaja meaning Lion king in Sinhala

is believed to have been the last redoubt of the Sri Lanka's lion.

Lion King Sinharaja Tropical Rain Forest has something for

every one with diverse activities & interests: to the nature lover, to

the photographer, to the artist, to the ecologist & to the scientist.

IUCN International Union for the Conservation of nature &

Naural Resources- Technical evaluation of Sinharaja Reserve states t


hat "Sinharaja is the last extensive primary lowland tropical rain forest

in Sri Lanka. It holds a large number of endemic species of plants &

animals, & a variety of plants of known benefit to man".

Pocketed between two sizeable rivers
The tropical island of Sri Lanka is well forested, with more t

han 18899 acres (6648ha) of hilly virgin, uninhabited woodland

in the Sinharaja Forest alone. Pocketed between two sizeable

rivers, namely river Kalu Ganga from the north & river Gin

ganga from the south of the numerous rivers of this paradise

like tropical island of Sri Lanka, no larger than state of

Virginia, is a virgin tropical rainforest of enormous e

cological significance, a treasure trove of biodiversity. The wet

zone rain forest, with a breadth of 3.7 km north to south stretches

21km west to east over the hills, along the ridges & across

the valleys ranging in altitude 200m to 1300m. This narrow

strip of undulating terrain is drained by an intricate network

of streams, which flow into the two rivers.

The Portuguese, the Dutch & the British, the spice merchants.
The first records on Sinharaja date back to Portuguese &

then Dutch. Sinharaja is home to the spice Cardamom

Elattaria ensal. I needn't complete my sentences: they loved our

spices while we hated & waged war against them. The forest was

first mapped by British who made it a Crown Property in

1840. The first survey was done by Naturalist George

Henry Thwaites in the 1850s, recording many plants

found in Lion King Sinharaja Rain Forest.

People Power
Though Lion King Sinharaja Rain Forest was

declared a forest reserve as far back in 1875, heavy

logging began in 1971 resulting in a people’s protest

against the misguided government directive that allowed

felling of timber. In 1978 Sinharaja was declared a

national reserve & inscribed on the UNESCO World Heritage List in 1988. People Power Prevails!!!! Long live People Power.

Live & Let Live
The conversation project making a provision for limited use

of the forest recourses to meet the local needs of the

inhabitants of the surrounding villages was launched in the

run up to the status of UNESCO World Heritage List. Among

the variety of resources made available for limited

use are Kitul palm (Caryota urens) for

honey & jaggery (solidified honey);

Weniwal (Coscinium fenestratum) for

Ayurveda Medical treatments;

rattan (wewal Calamus), used in making

baskets & chairs;

cardamom Elattaria ensal (as spice); Shorea sp.

(for flour); dun Shorea sp. (for varnish and incense).

Tropical Forest
The vegetation of Lion King Rain Forest

consists of Tropical Wet Evergreen Forest

& Tropical Lowland Forest, with lofty, very straight

dominant trees being a distinctive feature. It is reputed

to shelter some 120 trees species, including ironwood,

satinwood, teak & ebony. The oldest parts of the rainforest

comprise dense stands of towering trees enmeshed in

exotic tangles of ferns & lianas; the top of the canopy

reaches heights up to 45m with giant Newada trees

among others. Nearly all the sub canopy tree found here

are rare or endangered. The vegetation below the sub canopy

is thick. More than 65% of the 217 types of trees & woody

climbers endemic to Sri Lanka's rainforest are found

in Sinharaja. As the heart of the island's wet zone,

on most days the forest conjures rain clouds that

replenish its deep soil & balance water resources for

a wide area of southwestern Sri Lanka. Sinharaja's

importance lies not just in its pristine nature, but

also in the high degree of endemism of its species.

Carnivorous plants
Among the carnivorous plants is lovely Baduara. The

deep test tube like green flower, Badura, closes its leaf

lid whenever an insect creeps in. The flower ages into fiery red.

Mammals
There are 12 species of mammals to be found in Sinharaja,

of which eight are endemic to Sri Lanka. Kola

Wandura (Purple-faced langur monkey),

Gona (Sambhur), Olu Muwa (Barking deer),

Wild boar (Pus scrofa), rusty spotted cats,

fishing cats are found here. The purple-faced

langur monkey is the most commonly seen of mammals.

There are three species of squirrels: the dusky-striped

jungle squirrel, flame-striped jungle squirrel & western

giant squirrel. Leopard, Badger Mongoose and the Golden

Palm Civet have been occasionally

sighted. Porcupines & Pangolins waddle

around the forest floor.

Birds of many feathers
Lion king Sinharaja Rain Forest is home to a total of

147 species. Among the endemic birds are Ceylon

Lorikeet (Loriculus beryllinus), Layard's

Parakeet (Psittacula calthropae),

Ceylon Jungle Fowl (Gallus Lafayetti),

Spur Fowl (Galloperdix bicalcarta),

Ceylon White-headed Starling (Sturnus albofrontatus),

Ceylon Wood Pigeon (Columba torringtoni),

Grey Hornbill (Ocyceros gingalensis),

Spotted-wing Thrush (Zoothera spiloptera),

Rufous Babbler (Turdoides rufescens),

Brown- capped Babbler (Pelleurneum fuscocapillum),

Ashy-headed Laughing Thrush (Garrulax cinereifrons),

Ceylon Blue Magpie (Cissa oronata),

White Headed Starling (Sturnus albofrontatus),

Green-billed Coucal (Centrophus chlororhynchus),

Red-faced Malkoha (Phaenicophaeus pyrrhocephalus),

Ceylon Hill Mynah or Grackle (Gracula ptilogenys)

and Legge's Flowerpecker (Dicaeum vincens).

Birds not of a feather too flock together when her

poison isn't necessarily mine
An interesting phenomenon in Lion king Sinharaja

Rain Forest is that birds tend to move in mixed feeding f

locks, led by the fearless Greater Racket-tailed Drongo

and the noisy Orange-billed Babbler: It is a mutual

relationship observed among birds, a method by which

they improve the availability of feed. The food of one

species does not necessarily interest another.

Sri Lanka's National Bird
Pedestrian Wali kukula or Sri Lanka Jungle

fowl (Gallus Lafayetti), a very colourful cousin of

domestic chicken, endemic to Sri Lanka is found

strutting about & scratching the ground for food here

in Sinharaja. Sinharaja is an ideal reserve to view

Sri Lanka Jungle Fowl. Sri Lanka Jungle Fowl can

be seen at Kitulgala as well as Ruhuna Yala National Park.


Reptiles & Amphibians
Lion King Sinharaja Rain Forest is home to 21 of

Sri Lanka's 45 endemic species of snake.

Python (Python molurus) in here is vulnerable.

The most commonly seen reptile is the green

garden lizard, while snakes include the

endemic Green pit viper (venomous) which

inhabit trees, krait (venomous) and

Hump-nosed viper (venomous) which lives on the

forest floor. There are several endemic amphibian

species, including the torrent toad,

wrinkled frog & Sri Lankan reed frog.

Natural trails
The three main natural trails of Lion King Sinharaja

Rain Forest are Waturawa trail

(4.7 km long), Moulawella trail (7.5 km long)

and Sinhagala (Lion Rock) trail (14km long).

At Lion Rock (742 m) we can view the unbroken

tree canopy of an undisturbed forest & various hill ranges.

At moulawella peak (760 m) we can see Sri Pada Adam's Peak

& look over forest canopy. Oh! The leeches are along the trails.

That's a plenty of nuisance. Soap or lighter or salt would do.

Hotels
With the eco tourism in Lion King Sinharaja Rain Forest on the

rise, enterprising new hotels have opened up recently.

The Boulder Garden & Rain Forest Edge are top

flight of boutique hotels that provide a convenient bases.


Sunday, February 21, 2010

snakes

Snakes of North America


FAMILY LEPTOTYPHLOPIDAE (slender blind snakes)

This family of snakes is composed of 50 species in two families.
They are generally regarded as the most primitive snakes, having
a pelvic girdle and vestiglial hind limbs. They have a single lung and
oviduct and are well adapted to their burrowing life style. They
feed exclusively on small invertebrates such as ant and
termite larvae. Leptotyphlopids are oviparous. There are
two species of this family in North America.
Leptotyphlops dulcis
Texas Blind Snake
Leptotyphlops humilis
Western Blind Snake

Tuesday, January 5, 2010

The Low-Country Wet Zone

Sinharaja forest
Sinharaja forest in the low country wet zone. Rising mist in the early morning.

It lies to the south-west of the central hills and comprises of a small area of densely covered low hills. It is generally hot and humid throughout the year with some parts receiving over 200 inches of rain per year. Most endemic species of butterflies are found in this zone.

The Low-Country Dry Zone:

The low-country dry zone occupies about three-quarters of the country. It receives between 25-75 inches of rain, most of which falls towards the end of the year. Elevation ranges from sea level to 500 feet above sea level. It is hot and dry for most of the year. Rice is cultivated extensively under irrigation from man-made water reservoirs that are called tanks. Vegetables are also cultivated in this zone after the monsoonal rains. It does have some tracts of forest and scrub jungle, though vastly reduced from its former size due to new settlements. Most of the butterflies found in this zone are similar to those in South India.

Ecological zones

The distribution of butterflies and dragonflies
is influenced by temperature, rainfall, altitude and the geology
of the land. Sri Lanka has traditionally been divided into five broad ecological zones–the arid zone, the low-country dry zone, the low-country wet zone and the central hill zone with a transitional intermediate zone between the lowlands and the hills. There are also tracts of grasslands which are of secondary origin in the hills that are home to some species of butterflies, though not exclusively. The mangroves and salt marshes are not specific to any species of butterfly but certainly offer excellent habits for some species.

Endemic species

Endemic species and/or subspecies are marked with an asterisk (*).

Zygoptera
Calopterygoidea
Calopterygidae

  1. Neurobasis chinensis chinensis
  2. Vestalis apicalis nigrescens*

Chlorocyphidae (Libellaginidae)

  1. Libellago adami*
  2. Libellago finalis*
  3. Libellago greeni*
  4. Libellago indica

Euphaeidae (Epallagidae)

  1. Euphaea splendens*

Lestoidea (Lestidoideae)
Lestidae

  1. Lestes praemorsus decipiens
  2. Lestes elatus
  3. Lestes malabarica
  4. Sinhalestes orientalis*
  5. Indolestes divisa*
  6. Indolestes gracilis gracilis*

Coenagrionoidea
Coenagrionidae (Cenagriidae, Agrionidae)

  1. Agriocnemis femina femina
  2. Agriocnemis pygmaea
  3. Mortagrion ceylonicum*
  4. Onychargia atrocyana
  5. Cercion malayanum
  6. Enallagma parvum
  7. Aciagrion occidentale
  8. Ischnura aurora aurora
  9. Ischnura senegalensis
  10. Ceriagrion cerinorubellum
  11. Ceriagrion coromandelianum
  12. Pseudagrion malabaricum
  13. Pseudagrion microcephalum
  14. Pseudagrion rubriceps ceylonicum*

Platycnemidae

  1. Copera marginipes

Platysticidae

  1. Drepanosticta adami*
  2. Drepanosticta austeni*
  3. Drepanosticta brincki*
  4. Drepanosticta digna*
  5. Drepanosticta fraseri*
  6. Drepanosticta hilaris*
  7. Drepanosticta lankanensis*
  8. Drepanosticta montana*
  9. Drepanosticta nietneri*
  10. Drepanosticta sinhalensis*
  11. Drepanosticta starmuhlneri*
  12. Drepanosticta submontana*
  13. Drepanosticta subtropica*
  14. Drepanosticta tropica*
  15. Drepanosticta walli*
  16. Platysticta apicalis*
  17. Platysticta maculata*

Protoneuridae

  1. Disparoneura ramajana*
  2. Elattoneura oculata (formerly bigemmata)*
  3. Elattoneura caesia*
  4. Elattoneura centralis*
  5. Elattoneura leucostigma*
  6. Elattoneura tenax*
  7. Prodasineura sita*

Anisoptera
Aeshnoidea
Gomphidae

  1. Anisogomphus solitaris*
  2. Burmagomphus pyramidalis sinuatus*
  3. Cyclogomphus gynostylus*
  4. Megalogomphus ceylonicus*
  5. Paragomphus henryi*
  6. Heliogomphus ceylonicus*
  7. Heliogomphus lyratus*
  8. Heliogomphus nietneri*
  9. Heliogomphus walli*
  10. Macrogomphus lankanensis*
  11. Macrogomphus annulatus keiseri*
  12. Microgomphus wijaya*
  13. Gomphidia pearsoni*
  14. Ictinogomphus rapax

Aeshnidae

  1. Anax guttatus
  2. Anax immaculifrons
  3. Anax indicus
  4. Hemianax ephippiger
  5. Gynacantha dravida
  6. Anaciaeshna donaldi

Libelluloidea
Corduliidae

  1. Epophthalmia vittata cyanocephala*
  2. Macromia flinti*
  3. Macromia zeylanica*

Libellulidae

  1. Hylaeothemis fruhstorferi*
  2. Tetrathemis yerburyi*
  3. Brachydiplax sobrina
  4. Cratilla lineata calverti
  5. Lathrecista asiatica asiatica
  6. Orthetrum chrysis
  7. Orthetrum glaucum
  8. Orthetrum luzonicum
  9. Orthetrum pruinosum neglectum
  10. Orthetrum sabina sabina
  11. Orthetrum triangulare triangulare
  12. Potomarcha congener
  13. Acisoma panorpoides panorpoides
  14. Brachythemis contaminata
  15. Bradinopyga geminata
  16. Crocothemis servilia
  17. Diplacodes nebulosa
  18. Diplacodes trivialis
  19. Indothemis carnatica
  20. Indothemis limbata sita
  21. Neurothemis intermedia intermedia
  22. Neurothemis tullia tullia
  23. Rhodothemis rufa
  24. Sympetrum fonscolombei
  25. Trithemis aurora
  26. Trithemis festiva
  27. Trithemis kirby kirby
  28. Trithemis pallidinervis
  29. Onychothemis tokinenesis ceylanica
  30. Palpopleura sexmaculata sexmaculata
  31. Rhyothemis triangularis
  32. Rhyothemis variegata variegata
  33. Hydrobasileus croceus
  34. Pantala flavescens
  35. Tramea basilaris burmeisteri
  36. Tramea limbata
  37. Tholymis tillarga
  38. Zyxomma petiolatum
  39. Aethriamanta brevipennis
  40. Macrodiplax cora
  41. Urothemis signata signata
  42. Zygonyx iris ceylonicus