Category Archives: Geography

India celebrates Children’s Day 2014


.
Myself By T.V. Antony Raj

.

Doodle4Google - "Natural and Cultural Paradise - Assam" by Vaidehi Reddy.
Doodle4Google – “Natural and Cultural Paradise – Assam” by Vaidehi Reddy.

 

Today, November 14th, India celebrates Children’s Day. I wish all children in India “A Happy Children’s Day!”

In 2009, Google India launched the Doodle4Google competition. It is an invitation for students from grades 1to 10 to design the Google Doodle to celebrate Children’s Day in India. The theme for this year’s competition was “A place in India I wish to visit”. Google received over one million entries from more than 1700 schools across 50 cities in India.

Google India announced Vaidehi Reddy as the winner of this year’s Doodle4Google design contest. She was honoured at an event in New Delhi on November 12, 2014.

The above winning Doodle titled “Natural and Cultural Paradise – Assam” went live on the Google (India) home page today, November 14, Children’s Day.

Nehru and Children's Day

On this Children’s day, India remembers and honours the country’s first Prime Minister Shri Jawaharlal Nehru born in 1889. The children of India fondly called him “Chacha Nehru” (Hindi: चाचा नेहरू)) or Uncle Nehru.

Jawaharlal Nehru always emphasized the importance of showering love and affection on children. He saw in them the future of India.

On December 3, 1949, Jawaharlal Nehru wrote a lovely letter to the children of India. Here are some excerpts from it:

“I like being with children and talking to them and, even more, playing with them. For the moment I forget that I am terribly old and it is very long ago since I was a child.”

“Can you recognise the flowers by their names and the birds by their singing? How easy it is to make friends with them and with everything in nature, if you go to them affectionately and with friendship. You must have read many fairy tales and stories of long ago. But the world itself is the greatest fairy tale and story of adventure that was ever written.”

“Grown-ups have a strange way of putting themselves in compartments and groups. They build barriers… of religion, caste, colour, party, nation, province, language, customs and of rich and poor. Fortunately, children do not know much about these barriers, which separate. They play and work with each other and it is only when they grow up that they begin to learn about these barriers from their elders.”

“Some months ago, the children of Japan wrote to me and asked me to send them an elephant. I sent them a beautiful elephant on behalf of the children of India… This noble animal became a symbol of India to them and a link between them and the children of India.”

“You know we had a very great man amongst us. He was called Mahatma Gandhi. But we used to call him affectionately Bapuji. He was wise, but he did not show off his wisdom. He was simple and childlike in many ways and he loved children… he taught us to face the world cheerfully and with laughter.”

.

RELATED ARTICLES

Advertisements

Are There Snakes in Hawaii?


.
Myself . 

By T.V. Antony Raj

.

Studies show that an invertebrate successfully colonized Hawaii once in every 70,000 years, a plant once in every 100,000 years, and a bird once in every million years.

.

The Hawaiian Hotspots. (Image from Tasa Graphics)
The Hawaiian Hotspots. (Image from Tasa Graphics)

.

Officially and technically, Hawaii doesn’t have any snakes.

Why?

All Hawaiian Islands are volcanic in origin. Over the past 44 million years, the islands rose up from the ocean floor due to erupting volcanoes. Even today, the youngest island, Hawaii, is still growing from under.

.

Hawaii map - Distance from other countries (Source: Padi.com)
Hawaii map – Distance from other countries (Source: Padi.com)

.

Hawaii is the most isolated archipelago in the world. The nearest continent, North America, is over 2500 miles (4000 km) away.

The extreme isolation of the Hawaiian archipelago makes it difficult for plants and animals to colonize its islands. The only way for wildlife species to reach the Hawaiian Islands from the rest of the world is to fly or swim across the Pacific Ocean. Chances of surviving the long journey over Pacific by air or sea is virtually small. It would indeed be a miracle to establish a reproducing population on these islands. Since there are no natural predators and diseases in Hawaii, many native plants and animals needed only a few natural defenses to evolve. Studies show that an invertebrate successfully colonized Hawaii once in every 70,000 years, a plant once in every 100,000 years, and a bird once in every million years. This is why it took over millions of years for a very distinct flora and fauna to evolve in Hawaii.

.

Map of the Pacific Culture Areas (Author : Kahuroa)
Map of the Pacific Culture Areas (Author : Kahuroa)

.

Before humans set foot in the Hawaiian paradise, there were no large animals to eat plants. Harm to the flora and fauna on the islands began about 1500 years ago when settlers started arriving from Polynesia. Mammals such as pigs, dogs, goats and plants brought by them literally devastated many native ecosystems.

It is illegal to own snakes or transport snakes of any kind to the Hawaiian islands. Anyone possessing a pet snake has to face jail up to 3 years and $200,000 in fines. In Hawaii there no natural predators for snakes and large lizards, therefore, if allowed, could pose a threat to Hawaii’s ecosystem by competing with native animals for food and habitat. Some snake species prey on birds and their eggs, and hence could pose a threat to endangered native birds.

Blind Snakes

Hawaii doesn’t officially have snakes. However, there is one snake that does live in Hawaii, the Blind Snake (Ramphotyphlops hatmaliyeb) likely an import from the Caroline Islands in Micronesia, an area north of the equator and far west of Hawaii.

.

.

Addison Wynn, a herpetologist at the Smithsonian’s National Museum of Natural History who studies the blind snakes on the Caroline Islands says:

They eat termites and small ants, and there are about 240 or so known species in the world. They spend their lives burrowing so their head is blunt and pointed to push their way through the soil. Their rudimentary eyes can only differentiate between light and dark and exist as pigment spots underneath scales on their head.

These new species extend the known range of blind snakes some 2,000 kilometers out into the Pacific Ocean, into areas where we didn’t know they occurred or could ever occur. We just didn’t expect to find blind snakes out there (Caroline Islands) in the middle of the ocean.

Some other studies that the blind snakes found in Hawaii could have come there from far off the Philippines, about 5300 miles (8530 km) away.

So, other than the blind snakes, it is widely assumed that there are no snakes in Hawaii. Sadly, this is not true. According to a few reports, people have seen some snakes in Hawaii.

.

Ornate Tree Snake

The Ornate Tree Snake captured at Hickam Hickam Air Force Base. (Photo by Dr. Allen Allison, Bishop Museum
The Ornate Tree Snake captured at Hickam Hickam Air Force Base. (Photo by Dr. Allen Allison, Bishop Museum)

.

On May 23, 2013, military personnel at the Hickam Air Force Base captured a foot-long mildly venomous Ornate Tree Snake (Chrysopelea ornate) in a maintenance bay near the airfield.

Since the Ornate Tree Snakes are able to spring from tree to tree, they are also known as ornate flying tree snakes. These snakes are native to South East Asia and related to the brown tree snakes which have devastated the ecosystem in Guam by virtually wiping out the native forest birds. Their diet consists of lizards, mice, bats and birds.

.

Boa Constrictor 

This was a snake found ran over on the mainland. (Photo: National Parks Service)
This was the five-foot long boa constrictor found run over on Pali Highway (Photo: National Parks Service)

.

On September 22, 2013, a motorist ran over a five-foot long Boa Constrictor on the Pali Highway. Several inspectors of Hawaii Department of Agriculture (HDOA) went directly to the area where the snake was found. However, they did not find evidence of any other snakes. Russell S. Kokubun, chairperson of the Hawaii Board of Agriculture said:

Any snake found in the wild in Hawaii is of serious concern. Boa constrictors may grow up to 12 feet, which is particularly troubling for nearby residents and for the environment.”

.

Rainbow Boa Constrictor 

A non-venomous rainbow boa constrictor
A non-venomous rainbow boa constrictor

.

At about 7 am on November 5, 2013, Victor Palmeri, found a live two-and-a-half foot long non-venomous Rainbow Boa Constrictor on the Nuuanu Avenue sidewalk fronting the Kukui Plaza condominium. Native to Central and South America, rainbow boas can grow up to six feet long. Rainbow boas are known for their attractive iridescent sheen on their scales in the sunlight. Their diet consists of rodents, lizards, aquatic animals, and birds.

It is not known at this time how these snakes found their way to Hawaii.

.

.

Add this anywhere

Islands in the Gulf of Mannar: Part 3 – Islands and Islets of Sri Lanka


.
Myself By T.V. Antony Raj

.

The island nation of Sri Lanka in the Indian Ocean has several small offshore islands and islets as well as islets in its various bays and lagoons.

I have listed below, in alphabetical order, most of the known islands (and islets) lying in the waters of the Gulf of Mannar on the western coast of Sri Lanka. Please note that this list is not comprehensive.

Mannar District, Northern Province

  • Kalliaditivu / Galadi doova, 1.71 sq km, 8°56′54″N 79°54′42″E.
  • Mannar Island / Mannaram doopatha, 126.46 sq km, 9°03′10″N 79°49′42″E.
  • Puliyantivu / Kotidoova, 0.90 sq km, 8°57′19″N 79°54′01″E.

Puttalam District, North Western Province

  • Ambanttativu / Sambanda-doova, 0.17 sq km, 8°12′40″N 79°46′06″E. In Puttalam Lagoon.
  • Erumaitivu / Mahisadoova, 0.90 sq km, 8°16′07″N 79°46′44″E. In Dutch Bay.
  • Henativu / Havativu / Haavadoova, 0.78 sq km, 7°58′22″N 79°49′09″E. In the channel between Puttalam Lagoon and Mundal Lagoon.
  • Ippantivu / Ibbandoova, 0.76 sq km, 8°19′49″N 79°48′22″E. In Dutch Bay.
  • Karaditivu / Karadiva, 0.09 sq km, 7°54′42″N 79°48′54″E. In channel between Puttalam Lagoon and Mundal Lagoon.
  • Karaitivu, 8°27′45″N 79°47′15″E. West of Portugal Bay.
  • Mantivu / Maandoova, 0.38 sq km, 7°42′03″N 81°39′43″E. In the channel between Puttalam Lagoon and Mundal Lagoon.
  • Maripututivu / Maliputhu diva, 0.10sq km, 8°10′33″N 79°44′59″E. In Puttalam Lagoon.
  • Mattutivu / Maddu doova, 0.12sq km, 8°13′02″N 79°47′00″E. In Puttalam Lagoon.
  • Neduntivu / Maedundoova, 0.10 sq km, 8°14′06″N 79°46′45″E. In Dutch Bay.
  • Oddakarentivu / Uddakadoova, 0.20 sq km, 8°16′37″N 79°45′54″E. In Dutch Bay.
  • Periya Arichchal / Maha Arakgala,0.32 sq km, 8°17′59″N 79°47′45″E. In Dutch Bay.
  • Periyativu / Mahadoova, 1.10 sq km, 7°56′57″N 79°48′58″E.
  • Pullupiddi / Kotipitiya, 0.11 sq km, 8°11′21″N 79°46′40″E. In Puttalam Lagoon.
  • Sinna Arichchal / Podi Arakgal, 0.16 sq km, 8°17′02″N 79°47′32″E. In Dutch Bay.
  • Udayurputi / Udukurupoththa, 0.42 sq km, 8°10′07″N 79°48′31″E. In Puttalam Lagoon.

Mannar Island

Mannar Island. (Source:- Google Map)
Mannar Island. (Source:- Google Map)

Of these listed islands, Mannar Island is the largest having an area of 48.83 square miles (126.46 sq km). It is a part of Mannar District. It is linked to the main island of Sri Lanka by a causeway.

The island is dry and barren, mainly covered with vegetation and sand.

The main occupation of the people living in the area is fishing.

Major settlements are Mannar and Erukkulampiddi on its eastern coast, and Pesalai on its northern coast. All these towns are connected by the A14 road which leads across the bridge to mainland Sri Lanka.

.

← Previous: Part 2 – The 21 Islands of India

.

RELATED ARTICLES

.

Add this anywhere

Islands in the Gulf of Mannar: Part 2 – The 21 Islands of India


.
Myself 

By T.V. Antony Raj

.

The Government of India has established 18 Biosphere Reserves of India. Nine of these biosphere reserves are a part of the World Network of Biosphere Reserves, based on the UNESCO Man and the Biosphere (MAB) Programme list. This list includes the Gulf of Mannar Biosphere Reserve that covers an area of 4,054 square miles (10,500 sq km) on the south-east coast of India in the Gulf of Mannar.

In addition to protecting the flora and fauna in the region, protection is also given to the human communities who live in these regions, and to their ways of life.

Gulf of Mannar is one of the richest coastal regions in southeast Asia. It nurtures over 3,600 species of flora and fauna. Biological researchers have identified more than a hundred hard coral species. Dolphins, sharks, sea turtles and oysters abound in the gulf. Frequent visitors to the gulf are the globally endangered sea cow (Dugong dugong), a large marine herbivorous mammal. Other endangered species are the dolphins, whales and sea cucumbers. Also, the gulf has six endangered mangrove species endemic to peninsular India.

The Indian coast in the Gulf of Mannar extends from Rameswaram island in the North to Kanyakumari in the South of Tamil Nadu.

The Gulf of Mannar Marine National Park is a protected area of India consisting of 21 small islands in the Gulf of Mannar covering an area of nearly 216 square miles (560 sq km). It lies up to 10 km away from the east coast of Tamil Nadu, South India, stretching about 160 km between Thoothukudi (Tuticorin) and Dhanushkodi. It is the core area of the Gulf of Mannar Biosphere Reserve which includes a 10 km buffer zone around the park, including the populated coastal area. The park is endowed with a high diversity of plants and animals in its marine, intertidal and near shore habitats. The park is part of the 87 miles (140 km) long and 15.5 miles (25 km) wide Mannar barrier reef. It lies between 8° 47’ to 9° 15’ N latitude and 78° 12’ to 79° 14’ E longitude.

The Gulf of Mannar Biosphere Reserve comprises the 21 islands of the Gulf of Mannar Marine National Park, with estuaries, mudflats, beaches, forests of the near shore environment, including marine components like algal communities, sea grasses, coral reefs, salt marshes and mangroves.

The 21 islands vary from 0.25 hectares (0.62 acre) to 130 hectares. (321.2 acres). Total area of the islands is 2.41 sq miles (6.23 sq km).  Well-developed coral reefs occur around all these offshore islands which are mainly composed of calcareous framework of dead reef and sand,and have a low and narrow sandy coast.

Indian Islands in the Gulf of Mannar.
The 21 Indian Islands in the Gulf of Mannar.

The islands are listed below, southwest to northeast.

Thoothukudi (Tuticorin) group (Four Islands):

1. Vaan Tivu, 16.00 ha, 8.83639°N 78.21047°E
2. Koswari Island, 19.50 ha, 8.86879°N 78.22506°E
3. Kariyashulli Island, 16.46 ha, 8.95409°N 78.25235°E;
*4. Vilangushulli Island, 0.95 ha, 8.93815°N 78.26969°E.

*Due to excessive coral mining, Vilangushulli Island island is now 1 metre below mean low tide level.

There were two more islands named Pandayan and Punnaiyadi at 8.78075°N 78.19536°E. But these were destroyed during the construction of the new artificial deep-sea Tuticorn Port.

There are numerous other nondescript islands located close to Thoothukudi city. Of these Muyal (or Hare) Thivu and Nalla Thanni Islands attract visitors during weekends and festival seasons.

Vembar group (Three Islands):

5. Uppu Thanni Island, 22.94 ha, elevation 4 m, 9.08921°N 78.49148°E
6. Puluvinichalli Island, 6.12 ha, elevation 5.5 m, 9.10320°N 78.53688°E
*7. Nalla Thanni Island, 101.00 ha, elevation 11.9 m, 9.10667°N 78.57885°E.

*Nalla Thanni Island island was populated recently.

Kilakarai group (Seven Islans):

8. Anaipar Island, 11.00 ha, elevation 2.1 m, 9.15294°N 78.69481°E
9. Valimunai Island, 6.72 ha, elevation 1.2 m, 9.15354°N 78.73052°E
10. Appa Island, 28.63 ha, elevation 6.4 m, 9.16582°N 78.82596°E
11. Poovarasan Patti, 0.50 ha, elevation 1.2 m, 9.15413°N 78.76695°E
12. Talairi Island, 75.15 ha, elevation 2.7 m, 9.18133°N 78.90673°E
13. Valai Island 10.10 ha, elevation 3.0 m, 9.18421°N 78.93866°E
14. Mulli Island, 10.20 ha, elevation 1.2 m, 9.18641°N 78.96810°E;

Mandapam group (Seven Islans):

*15. Musal or Hare Island, 124.00 ha, elevation 0.9 m 9.19912°N 79.07530°E
16. Manali Island, 25.90 ha, 9.21564°N 79.12834°E
17. Manali-Putti Island, 2.34 ha 9.21581°N 79.12800°E
18. Poomarichan Island, 16.58 ha 9.24538°N 79.17993°E
19. Pullivasal Island, 29.95 ha 9.23699°N 79.19100°E
*20. Kurusadai Island, 65.80 ha 9.24690°N 79.20945°E
21. Shingle Island, 12.69 ha, elevation .6m 9.24174°N 79.23563°E.

*Musal (or Hare) and Kurusadai Islands were recently populated. The shallow waters surrounding these islands harbour three species of seagrass that are found nowhere else in India. Representatives of every known animal phylum except amphibians are found on this island.

Next: Part 3 – Islands and Islets of Sri Lanka →

← Previous: Part 1 – Adam’s Bridge

.

RELATED ARTICLES

.

Add this anywhere

Islands in the Gulf of Mannar: Part 1 – Adam’s Bridge


.
Myself 

By T.V. Antony Raj

.

The Laccadive Sea

The Laccadive Sea or Lakshadweep Sea is a body of water that includes the Lakshadweep islands, the Maldives, and Sri Lanka.

Laccadive Sea
Laccadive Sea

.

The International Hydrographic Organization defines the limits of the Laccadive Sea as follows:

  • On the West. A line running from Sadashivgad Lt., on west coast of India (14°48′N 74°07′E) to Corah Divh (13°42′N 72°10′E) and thence down the west side of the Lakshadweep and Maldive Archipelagos to the most southerly point of Addu Atoll in the Maldives.
  • On the South. A line running from Dondra Head in Sri Lanka to the most southerly point of Addu Atoll.
  • On the East. The southeastern coast of India and west coast of Sri Lanka.
  • On the Northeast. Adam’s Bridge between India and Sri Lanka.

The Gulf of Mannar and Adam’s Bridge

The Gulf of Mannar is a large shallow bay, a part of the Lakshadweep Sea between the southeastern coast of India and the West coast of Sri Lanka. The estuaries of the river Thamirabarani of south India and the river Aruvi Aru of Sri Lanka drain into the gulf.

Adam's Bridge separating Gulf of Mannar from Palk Bay
Adam’s Bridge separating Gulf of Mannar from Palk Bay

.

An 18-miles (30 km) long isthmus composed of limestone shoals, and coral reefs, popularly known as Adam’s Bridge or Ramsethu, lies between Pamban Island, off the southeastern coast of Tamil Nadu, India, and Mannar Island, off the northwestern coast of Sri Lanka.

.

Aerial view of Mannar Island and Adam's Bridge.
Aerial view of Mannar Island and Adam’s Bridge.

.

Geological evidence suggests that this bridge formerly connected India and Sri Lanka.

The Rameswaram cyclone of 1964 started with the depression that formed in the South Andaman Sea on December 17, 1964. On December 19, it intensified into a severe cyclonic storm. From December 21, it moved westwards, 400 km to 550 km per day. On December 22, it crossed Vavunia in Sri Lanka with a wind speed of 280 km per hour. On December 22-23 night, the cyclone and moved into Palk Strait and made landfall in Dhanushkodi, India. The devastating tidal waves that were 7 metres high submerged all houses and other structures in Dhanushkodi town. The death toll rose to 1,800.

In the past too, high-intensity cyclones and storms often ravaged the area around Rameswaram in India.

Records from Hindu temples say that Ramsethu was completely above sea level that could be traversed on foot, until a cyclone in 1480 AD submerged it.

A study conducted by the Geological Survey of India indicated that in 1948-49 the southern part of erstwhile Dhanushkodi Township, facing Gulf of Mannar, sank by almost 5 meters due to vertical tectonic movement of land parallel to the coastline. As a result of this, a stretch of land of about half a kilometre wide and 7 km in length, along North-South direction, submerged into the sea together with many roads, residential areas, places of worship, etc.

Now, some sandbanks of the Adam’s Bridge are dry, and the sea is very shallow, only 3 feet to 30 feet (1 metre to 10 metres) deep. This geographical feature of the Adam’s Bridge acts as a barrier to heavy vessels that cruise from India’s west coast to India’s east coast and ships have to take the long circuitous route around Sri Lanka.

The chief seaports on the Gulf of Mannar are Thoothukudi (formerly Tuticorin) in Tamil Nadu, India and Colombo in Sri Lanka. These ports can accommodate deep-draft vessels, but the shallow sea in the Adam’s Bridge region allows only small shallow-draft vessels.

In July 2005, the Indian Government envisaged the Sethusamudram Shipping Canal Project to dredge and scrape out a deep channel to open a direct shipping route for heavy vessels to ply from the southeastern Gulf of Mannar to the northeastern Bay of Bengal and avoid the long trip around Sri Lanka. However, environmentalists have warned that the project could cause grave damage to the sea life of the Gulf of Mannar and the Palk Strait, and thereby affect fisheries in both the southeastern coast of India and the west coast of Sri Lanka.

.                                                                     Next: Part 2 – The 21 Islands of India →

.

RELATED ARTICLES

.

Add this anywhere