Monday, August 25, 2008

Vanishing Species - The Sangai

An Article by Mohan Pai

The Sangai
Cervus eldi eldi

The Sangai, the brow-antlered deer is found only in Manipur and only 162 animals survive.
The Sangai was believed to be almost extinct by 1950. However, in 1953 six heads of the Sangai were found hovering at its natural habitat. Since then, the State Government has taken serious and positive measures for the protection of this rare and endangered species. The Sangai is also the state animal of Manipur and is projected as the social and cultural identity of the state..The Sangai lives in the marshy wetland in Keibul Lamjao National Park( 40 sq km). Its habitat is located in the southern parts of the Loktak Lake, which is the largest freshwater lake in Eastern India. It is also one of the seven Ramsar sites of international importance. The habitat of the Sangai is now a protected area.

The Sangai Forum was formed to protect the Sangai and other wildlife like hog deer, wild boar, Indian otter, civet cat, box turtle, and migratory water birds who have their home in the National Park. Although banned by law, hunting of the Sangai and other wildlife continues. Then again people hunt the deer for its meat. The Loktak Hydroelectric Power Project too has become a threat to the Sangai habitat. A constant high water level is maintained in the lake and this has led to many changes, one of which is the rise in the water level in the Keibul Lamjao National Park during the rainy season. Manipur experiences heavy rains during the monsoon season. So, the Sangai's home is constantly threatened. What happens during the rainy season is that the deer seeks shelter in isolated dry patches in the National Park and poachers lie in wait for such opportunity. Many times the deer drown. One of the duties of the Sangai Forum volunteers is to keep a watch for signs of danger. They organise search parties to locate deer that are in trouble inside the park. They also keep a lookout for the poachers and organise awareness campaigns in villages, stressing on the importance of the Sangai and the need to save it. The villagers are requested to report to the nearest Sangai Forum unit if they have any news of the deer in danger. Forum volunteers also work with Forest officers and forest guards to protect the deer. In January 2003, Sangai Forum volunteers caught two poachers who had killed a Sangai. The poachers were handed over to the local Police Station and a criminal case was filed against them.
Present status:It is reported that there are only around 162 Sangai deer left in Keibul Lamjao National Park.This last natural habitat of the deer - covering a total of 40.5 sq.km with a core zone area of 15 sq.km, is peculiar by itself as it is mostly made up of the floating biomass locally known as Phumdi. The KLNP forms part of the southern portion of the greater Loktak lake, and so the park is within the water body area of the Loktak. It is for this reason that the park has often been termed as the 'only floating national park in the world'.

The Sangai faces a two-pronged danger to its life. Firstly, its habitat is steadily degenerating by reason of continuous inundation and flooding by high water caused as the result of artificial reservoir of the Loktak hydroelectric power project. Secondly, poachers are out there to trap and slay the deer at the slightest opportunity. In February 1998 poachers trapped two Sangai doe inside the KLNP, killing both female.

In 1983 the 103 Megawatt capacity Loktak hydroelectric power project was commissioned with the objective of ensuring rapid development in the State. One failure of the project has been that it has never been able to provide regular power supply to the villages in the Loktak lake periphery. And a very disturbing effect of the project has been its share of harm to the ecology and the environment of the Loktak, threatening the lake ecosystem, the humans and their lands, the wildlife, and all other life forms dependent on the lake for their living.
A maximum high water level of 168.5 meter above MSL is maintained in the Loktak Lake to feed the reservoir for the hydel project. At this level, much of the land on the periphery of the lake had been submerged under water, rendering huge loss of productive agricultural lands and localised fish culture farms. On the other hand, this high water level had wreaked havoc in the KLNP. The high water level, maintained continuously through the year, had disturbed the natural life cycle of the vegetation growth, the through the year, had disturbed the natural life cycle of the vegetation growth, the phumdi, upon which the Sangai thrives. The deer feed on several types of vegetation that grow on the phumdi. The vegetation also provides shelter to the deer and other wildlife in the park.

The life-cycle of the phumdi involves floating on the water surface during season of high water as in the monsoons. In the lean season, when the water level reduces, the biomass come into contact with the lake bed and they secure the required nutrient from there. When the rains come again and they become afloat, the biomass have enough 'food' - the nutrient - stored in their roots and their life continues. What is happening now, according to local scientists who are studying the phenomena, is that with continuous high water in the lake throughout the year much of this process of 'feeding' on the nutrient in the lake bed had discontinued. The result - the biomass are losing weight and getting thinner by the year. Around January last week in 1999, it was reported that a large chunk of the biomass in the northern part of KLNP had broken up into pieces and had drifted freely from the park area. This was a bad sign for the Sangai habitat.
Very recently this year, reports came in about local people cutting up the phumdi into sizeable pieces and then towing away these with dugout canoe for 'selling' to fish culture owners. This is another potential danger to the Sangai habitat. It meant humans are now aiding the process of annihilating the habitat area, supplementing to the rapid degeneration of the habitat.

Conclusion:
The Sangai - a jewel in the crown for Manipur - is one of the most unfortunate animals living in the world today. Human activity - read development process - had caused extensive damage to its last natural habitat, threatening its very existence. Humans continue to hunt and slay the deer on the sly in spite of legislation (Manipur Wildlife Protection Rules 1974) and public outcry. There is no State sponsored conservation programme for securing the safety of the deer and its habitat. Manipur is poised to lose this animal wealth, forever, if timely help does not come now.

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Vanishing Species - The Wild Boar

An Article by Mohan Pai


Indian Wild Boar
Sus scrofa cristatus

Pic by Ajay Gaikwad

The ‘Varaha’ of the Hindu mythology (the 3rd Avatar of Lord Vishnu) is the Wild Boar of the Indian Jungles.

You would do better to be on your guard against this animal when in the jungle. This is the species that has the guts to challenge even the tiger. With typical pig-like features, an average wild boar rises to a height of 90cm, and weighs more than 100 kg, although some can weigh as much as 225 kg. The most distinctive feature of the wild boar is a pair of elongated canines that grow upward and outward. It wears a greyish-black coat that is scantily covered with thick bristle-like hairs arising from its nape and winding their way to its posterior. The wild boar has an incredible sense of smell, although it has fairly average eyesight and hearing. Its body is well built, but what really makes it stand out is its courage and determination to live and to win the wild bouts. Its thick coat with its layer of fat helps it recover even from the gravest of injuries. It is not an unusual sight to see a herd of 5-6 animals grazing silently in the middle of the forest, but come nightfall, and the herd becomes really confident. Wild boars are known to raid and damage crops of the farmers living on the peripheries of National Parks and Sanctuaries. Amazingly, wild boars do not have any fixed cycle for breeding. But whenever it is the mating season, a fair and formal contest decides the dominant male who gets to mate with the female boar. After a gestation period of four months, the mother gives birth to 4-6 cubs. Thanks to poaching and the loss of habitat, the number of the wild boars is fast decreasing. Once there were 6-7 species found in the sub-continent, but today only two species survive. The widespread Indian Wild Boar(Sus scrofa cristatus and the very rare and recently rediscovered Pigmy Hog (Sus salvanius) which occurs in northern Assam.


Wild boar is considered to be the wild antecedent of the domestic pig of the Indian subcontinent. It belongs to the Suidae biological family, which also includes the Warthog and Bushpig of Africa, the Pygmy Hog of northern India and the Babirusa of Indonesia. Indian wild boars are also quite closely related to peccary or javelina of North, Central and South America.
“These creatures, found all over India, have become very wary and are difficult to photograph because of widespread persecution. They are generally classed by States as vermin because of their habit of raiding food crops, and can be shot by anyone at any time. In addition they are much relished as a meal by tigers and leopards and by lions of Gir forests, though a large boar can be more than a match for a tiger or a lion.These are the same animals that are the quarry in the well-known sport of pig-sticking, which still takes place in north India where there is flat, grassy terrain suitable for horses to gallop over.” -- E. P. Gee.

Physical Traits

The thick coat of the wild boar of India is grayish-black in color and is covered with bristle-like hair. It can grow up to a length of 6 feet and may weigh as much as 440 lb (200 kg). The features of a wild boar are quite similar to that of a pig. It has a prominent ridge of hair, which match the spine. The tail is short and straight and the snout is quite narrow.
The most noticeable as well as most distinguishing feature of the wild boars comprise of a pair of extended canines. These canines grow both upward as well as outward. Indian wild boars possess an acute sense of smell. Even their eyesight and hearing power is fairly strong.
Behavior

Wild boars can be found roaming around in groups, known as sounders. The number of sows, in a characteristic sounder, is two or three and rest of the members are the young ones. A typical sounder comprises of 20 animals on an average. In exceptional cases, the membership of a sounder may go up to 50 also. Adult males join a sounder only during the mating period and for the rest of the year they prefer to stay alone. Indian wild boars are basically nocturnal creatures, which forage from dusk to dawn. When surprised or attacked, they may get aggressive.
Diet

Wild boars eat anything and everything, including nuts, berries, carrion, roots, tubers, refuse, insects, small reptiles, etc. Young deer and lambs may also form a part of their diet.
Habitat

Wild boar is found inhabiting the woodlands of Central Europe, Mediterranean Region (including North Africa's Atlas Mountains) and most of Asia (including India).
Mating Behavior

There is no fixed mating period of the wild boars of India. However, whenever it takes place, it results in a formal contest between the males to decide the dominant male. The winner gets to mate with the female boar. The maturity period is one year and gestation period lasts for four months. A female wild boar usually gives birth in the spring season and the litter normally consists of 4 to 6 cubs.

Status

The population of Indian wild boars is declining at a fast pace. The reasons for this are large scale poaching as well as habitat destruction. At some point of time, Indian sub-continent consisted of 6-7 species of wild boar. However, today only two of them are left.
Subspecies Sus scrofa scrofa (North Africa, Europe, and Asia) Sus scrofa ussuricus (North Asia and Japan) Sus scrofa cristatus (Asia Minor to India)Sus salvanius (Pigmy Hog) - (India) Sus scrofa vittatus (Southeast Asia to Indonesia)

The Pigmy Hog
The Pigmy Hog is so secretive and limited in distribution that it was thought to be extinct until 1971 when an animal was authentically sighted and then specimens were captured. They are diminutive in size, adult male weighing about 9 kg and standing 23 to 30 cm at the shoulder, while adult female weighs about 6 kg. They are shy and secretive, with family groups spending the day burrowed under a nest which they construct of piled-up chopped sedge and grasses hidden in some thicket. They move with lightning rapidity through the thick vegetation and when confronted are bold, aggressive and can inflict severe lacerations with their razor-sharp incisors. The entire world population is presently believed to survive along a narrow foothill belt in the extreme northeastern border of Assam. Recent studies have shown that females produce only one litter a year and that is born in April or May during the dry season.


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Saturday, July 12, 2008

Vanishing Species - The Tiger

An Article by Mohan Pai

Tyger! Tyger! burning bright
In the forests of the night;
What immortal hand or eye
Could frame thy fearful symmetry?
- William Blake

The Tiger is going ...
and it is a crying shame !

2,200 tigers lost in the last 7 years

India has lost 2,200 or more than 60 per cent of its tigers in the last seven years says the latest Tiger Census just released.
The report which did not take the tiger population from the Sunderbans (West Bengal) and Indravati ( Chhattisgarh) into account, has put the total number of tigers in the country at 1,411. The last tiger census carried out in 2001-02 had pegged the total count at 3,642.
Poaching appears to be the main cause for the big cats vanishing in large numbers. Habitat shrinkage and loss of forest cover are the other two factors responsible for the dwindling count in some areas.
Madhya Pradesh has witnesses a massive loss - from 710 animals in 2001-02 to 300 animals in the 2008 census. Orissa and Assam are the other two big losers where the count has plummeted from 173 to just 45 and from 354 to mere 70, respectively. Karnataka has lost 111 tigers and Andhra Pradesh 97.

The Project Tiger initiated way back in 1973, it now appears, has turned out to be an utter and dismal failure. Government’s apathy to the problem in recent years is also an indirect cause for the depletion of tiger population.
The population of tigers is now at a critically low level and the species is in imminent danger of extinction. In animal population, the tempo of decline accelerates after a gradual fall to a low level; once the local population of a species is much reduced its ability to recoup deteriorates progressively, and with the fall in numbers often the factors of depletion gain lethal potency.
There have been a number of crusaders fighting for the cause of the Tiger for several decades now and prominent among them are:
1. Billy Arjan Singh, India’s well-known conservationist who single-handedly carved out the Dudhwa National Park, a forest sanctuary near Nepalese border. He is known for having reared and returned a Tigress ‘Tara’ and two leopards to the wild. His book ‘Tiger Haven’ is a chronicle of his conservation efforts.
2. Fateh Singh Rathore, the uninihibited Rajput who cheerfully risked his life defending the jungles in his charge.
3. Valmik Thgapar, who began as Fateh’s desciple. Since 1976 he has worked with tigers documenting their natural history and campaigning for their preservation. He has written numerous books and article’s on tigers.
4. Ullas Karanth, India’s finest field biologist and the tiger’s most persistent and vocal advocate. He has written two books: ‘The Way of the Tiger’ and ‘A view from the Machan.
5. Bitu Sahagal, editor of Sanctuary Asia, has promoted the cause of Saving the Tiger, now for several decades.

The legendary crusader Billy Arjan Singh with Tara, his controversial pet tigress, at Dudhva.

Excerpts from Chapter 14 of my book “The Western Ghats” published in 2005

Project Tiger
It is believed that there were more than 40,000 tigers in India some 80 years ago. Habitat destruction, rampant poaching and hunting brought about a sharp decline in their numbers. The National census of tigers in 1972 recorded the existence of only 1827 animals.
Considering the alarming endangered status of this majestic animal, the Government of India with support of WWF launched a scheme to protect the tiger called “Project Tiger” with nine sanctuaries declared as tiger reserves.
More tiger reserves were added in due course of time and today there are 28 national parks/sanctuaries under Project Tiger.
The main objective of Project Tiger was: “To ensure maintenance of a viable population of tiger in India, and to preserve, for all time, areas of biological importance as a national heritage for the benefit, education and enjoyment of the people”.
The then Prime Minister of India, Mrs. Indira Gandhi, a strong supporter of the Project, and of conservation in general observed, “The tiger cannot be preserved in isolation. It is the apex of a large and complex biotope. Its habitat, threatened by human intrusion, forestry and cattle grazing, must first be made inviolate”.
Project Tiger is a holistic conservation programme. The tiger cannot be saved in isolation. Saving the tiger involves the maintenance of a viable population of its prey species - the herbivore animals. For the herbivores to survive it has to be ensured that the vegetation of the forests is rich and varied. Thus saving tiger means saving an entire ecosystem.

The project is administered jointly by the wildlife departments of both the states and the centre. Project tiger, initiated in 1973, is one of the most comprehensive conservation efforts ever launched. At the apex of a complete biota, the tiger can be saved, not in isolation, but by making its habitat sacrosanct. Populations of rhinoceros, elephant, swamp deer, gaur and several other species have been preserved in this way.

Excerpts from Chapter 13 of my book “The Western Ghats” published in 2005

Natural Extinction of Species

Despite, the seemingly complex and stable nature of ecosystems, a large number of animals which roamed the earth in early geological periods have become extinct. Extinction is a natural phenomena in the evolution of animals. Certain species disappear gradually as they are unable to withstand the competition from those that are better adapted. Sometimes a whole group of animals have become extinct as had happened with dinosaurs at the end of Cretaceous period, some 70 million years ago. Many mammals like mammoths and mastodons have also become extinct. Countless other forms of animals and plants have flourished and disappeared. We know about them from fossil records preserved in the crust of the earth. Extinction is irreversible. This has been part of the evolutionary process which has produced more advanced forms of life - a process that has occurred over a vast span of time over millions of years. The greatest contribution of Charles Darwin, who propounded the Theory of Evolution, in his logical explanation for evolutionary changes and appearance of new form of life - natural selection - the success of those organisms that are capable of adapting to the environment, to survive and reproduce.
Extinction of species has taken place over millions of years, long before the advent of man. Primitive man lived in harmony with nature and did not cause the extinction of animal species. However, the spread of civilization across the world and the progressive exploitation of Nature have had an adverse impact on wildlife. Hunting for animals, alteration of the environment, habitat destruction, pollution of the land, air and water, the human population explosion - all these have been responsible for the extinction of animal species in recent times. Since the 17th Century about 120 mammals and 150 birds have become extinct. The rate of extinction due to human interference has accelerated since the dawn of industrial age. In India, the Cheetah, the lesser one-horned rhinoceros, the pink- headed duck and the mountain quail have become extinct in the last one century. Many mammals and birds have become rare and endangered and many a natural range diminished in size with increasing deforestation, often confining the animals to small territories.

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Thursday, July 10, 2008

Vanishing Species - Asiatic Wild Ass

An Article by Mohan Pai



ASIATIC WILD ASS
(Equus hemionous khur)


Only about 2,000 Wild Asses are now surviving in India.

The Asiatic Wild Ass belongs to the family Equidae, and is a close relation of the Horse and the African Zebra. Within the subcontinent it is found only in the Little Rann of Kutch and probably only became extinct in Baluchistan within past forty years. It has a larger cousin, the Kiang, living on the high plateaus of Ladakh and Tibet. The Asiatic Wild Ass stands about 115 cm at the shoulder, therefore considerably taller than the domestic donkey. The male is larger and sturdier than the female. They live in mixed troops of 10 to 30 animals except for 2 or 3 months after the young are bornWhen the mares accompanied by the foals live apart and the stallions keep singly or in scattered twos and threes. Their typical habitat is the flat salt desert around Dhrangadhra and Jhinjuwada in the Little Rann of Kutch which gets inundated during the monsoon, leaving exposed little ‘islands’ or bets of slightly raised ground supporting scanty grasses which comprise the principal food of this animal. The Wild Ass is fleet of foot, being capable of attaining a maximum speed of 50 kmph over a considerable distance.

The Rann of Kutch, Gujarat is the only habitat for this endangered sub-species of the Asiatic wild ass (Equus hemionus khur) and most of the population survives in the Wild Ass Sanctuary in Little Rann of Kutch.They are chestnut brown and white in colour with a dark stripe, made up of dark brown mane which runs along the animal’s back ending with its tufted tail. The area is a saline desert with extremely sparse cover of vegetation. In the past, the habitat supported a thriving population of wild asses. However, due to extensive changes in the land-use around the Rann of Kutch, there has been an increase in the conflict of interests between man and the wild ass. Epidemics of surra and South African Horse Sickness also considerably decimated their population in 1950s. Their total population had dropped to less than 1,000 animals in 1962.

The Wild ass is an endangered mammal, and is classified as such by the World Conservation Union (IUCN). The current official population of this mammal is about 2000. This population is confined mostly to the Little Rann of Kutch, a unique salt desert-wetland ecosystem which also contains several other rare species.

Though a large area of 4900 sq. km. of the Little Rann of Kutch had been declared a wildlife sanctuary, the study by researchers from the Wildlife Institute found that the Wild ass mostly uses the fringes of the vast desert area, including the fallow and wasteland which abounds in the adjacent villages. This is precisely the habitat where Sardar Sarovar Narmada Project (SSP) irrigation canals proposed to extend around the last habitat of the Wild Ass, will cause drastic land use and vegetational changes, including conversion into permanent cultivation, replacement of native vegetation which is favoured by the Wild ass into unpalatable weed, and waterlogging/salinisation. In addition, the existing Wild ass movement between the Little Rann of Kutch and the Great Rann (to its north), where a small population of the species exists, will be cut off, "causing genetic isolation". All these factors, says the study, "would have dire consequences for the long-term survival of the species".

The other main threat faced by the sanctuary is the illegal salt mining activity in the area. 25% of India's salt supply comes from mining in the area. The transportation of salt leads to noise and air pollution. Another major threat to the animals is due to the 217 km² firing range of the Indian army located within the sanctuary. Other threats faced by the sanctuary are poaching and proliferation of chemical factories in the region.

Pic: Courtesy: shunya.net

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Vanishing Species - Indian Pangolin

An Article by Mohan Pai

INDIAN PANGOLIN
Manis crassicaudata

The Scaly ant-eater.

The pangolin or scaly ant eaters are curious animals. Unlike other mammals the pangolin is characterised by the presence of large overlapping scales on the body which act like protective armour. These scales are considered as modifications of the hair or spines flattened into scales. The underside of the body has some coarse bristle-like hair which can be seen in-between the scales. Pangolins are nocturnal in habits, spending the day in their burrows, which are long tunnels ending into a large chamber. Burrows may be fairly deep (6 m) in loose soil. The entrance of the burrow is closed with earth when animal is inside. It walks slowly with the back well arched and sometimes stands up on its hind feet with the body inclined forward.
The food of pangolins consists of various kind of ants and termites. The termite mound is torn open by the powerful claws and the pangolin thrusts its long tongue, lubricated with saliva into the passages and withdraws it with white ants adhering to it.

Pangolins have no teeth. They are particularly attracted by the leaf nests of the big red ants. Pangolins can climb walls, they climb trees in search of tree ants. Pangolins roll into a ball for defence and exhibit enormous muscular power that defies any ordinary attempt to unroll them. Probably stronger carnivore can prey upon them. Habitat destruction and killing for so called medicinal purposes have considerably reduced the population of the pangolin.

The name Pangolin is derived from Malayan phrase ‘Pen Gulling’ meaning ‘rolling ball’, while the term Pholidota came from a Greek word meaning ‘scaled animals’. They are also known as Scaly Anteaters because of their food habits.

General Characteristics

Elongated tapering body, covered with large overlapping scales, except on snout, chin, sides of face, throat, belly and inner surface of limbs. Scales may be regarded as hair or rather as spines enormously enlarged and flattened. The movable scales with sharp posterior edges attached at the base to the thick skin from which they grow. The shape and topography of scales change with wear and tear. Colour varies from different shades of brown to yellow. White, brown or even black bristle like hair covering the scale less areas. Eyes small, with thick heavy eyelids. Limbs with five clawed digits, hind leg Longer and stouter than fore leg. Tail thick and tapering, tongue long, upto 25 cm. Skull oblong or conical, without teeth. Female with two mammae in the thoracic region.

Distribution

Indian Pangolin occurs sporadically throughout the plains and lower slopes of hills from south of the Himalaya to Kannyakumari, excepting the north-eastern region. It also occurs in Pakistan.SriLanka andprobably in Bangladesh. Indian Pangolin occupies different types of tropical forests, mainly moist, dry deciduous, wet to semi-evergreen, thorn as well as grassland. It is also recorded from degraded wasteland near human habitation. Chinese Pangolin mainly inhabits subtropical broad-leaved forests and tropical wet, semi-evergreen and moist forests. Both the species are nocturnal. During the day, pangolins are found curled in burrows with many sealed outlets of loose earth. Burrows are usually made under large boulders or rocks. The depth of the burrow varies, depending on the soil type, 1.5-1.8 m in rocky soil and 6 m or more in loose soil. Though terrestrial in habit, they are excellent climbers, using ‘caterpillar locomotion’, with the firm grip of forefeet on the tree. The tail provides auxiliary support. The pangolins are highly specialized in their feeding habits. They feed mainly on eggs, young ones and adults of termites and ants by digging the termite or ant nests. Before digging the termite or ant nests, they utilize their sense organs, smell rapidlyaround the area to select the most suitable spot to start with and feed rapidly by extending protrusible, long, thin, copiously lubricated tongue into the galleries of nests. Eggs are relished more than the adults. Pangolins are particularly attracted by the leaf nests of large red ants, which hold the swarms of adults and their eggs. A close correlation exists between the range of distribution of M. pentadactyla and the abundance of termite species, Coptotermes formosanus. In captivity, pangolins are fed with milk, meat and eggs. Due to absence of teeth, food is directly taken into the Stomach and grinded with the help of strong musculature and pebbles collected during feeding.

Pangolins are timid and inoffensive. For defence they tackle their head towards belly and curl up under the broad scaly tail so that all the vulnerable parts of the body are protected. Squirting of an aromatic liquid from the anal region has been reported as another method of defensive mechanism. Male and female are found to occupy the same burrow with the young, but very little is known about the breeding habits. Breeding season varies from January to March in Deccan plateau, with the rare records of births during the month of July.

Threats

The flesh of pangolins is relished by some tribal communities and scales and skins are found in trade. Hunting, during ‘Shikar Utsav’, on a particular day of the year in eastern states also poses a serious threat. Owing to uncommon appearance, unusual apathy of the common people towards pangolins is another threat. Rapid loss and deterioration of habitat, steady increase in the agrarian economy combined with improved irrigation and random use of pesticides appear to be the most serious threat resulting in decline of pangolin population in the country.

Status and Conservation Measures

Both the species of pangolins of India are listed as Lower risk threatened (Lrnt) by IUCN. As per Red Data Book of Indian Animals (Z.S.I 1994), M. crassicaudata is considered vulnerable and M. pentadactyla as insufficiently Known.

A Centre for excellence in Pangolin Research, Conservation and Monitoring studies has been set up at Ajmer in Rajasthan.

Pic 1 by: Pankaj Sharma


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Tuesday, July 8, 2008

Vanishing Species - The Asian Elephant

An Article by Mohan Pai

The Asian Elephant
Elephas maximus

A magnificent beast and the largest land mammal, has a very special place in the Indian psyche.

India has been the main habitat of the Asian elephant. In spite of a drastic reduction in their numbers over the last century, India still has the highest population of the Asian wild elephants (about 25,000). The beast was tamed and domesticated and has been a part of the country’s religious, cultural, social scene for more than 5,000 years. The animal is inextricably linked with our history and lore. The seals of ancient Harappan civilization of the Indus valley(3000-2000 B.C.) depict figures of elephants.

One of the most venerated gods of the Hindu pantheon in India today is the elephant-headed Ganesha, the remover of all obstacles. Gajalaksmi, the elephant goddess is always shown with two elephants forming a triangular canopy with their trunks for goddess Lakshmi.

God Indra's eight-trunk elephant - Airavat

Vedic God Indra’s vehicle is an eight-trunk white elephant called Airavat. The Buddha himself is considered an incarnation of the sacred white elephant. There is a remarkable manuscript “Gajashastra” (Elephant lore) dated around sixth - fifth century B.C. giving the natural history of elephants. The Aryans who arrived in India around 1500 B.C. realised the value of the great beast and captured elephants in large numbers through kheddah operations (driving entire herds into stockade), the method of capture adopted even in our own times in Kakankote, Mysore until 1971 the year in which the last kheddah was held.
Elephants feature quite prominently in the Vedas as well as the two great epics, Ramayana and Mahabharata, where the elephant is used as a war engine.
When Alexander the Great invaded India in 323 B.C. He faced a formidable array of King Porus’s 200 war elephants and elephants continued to be prized possessions of kings for the next 2000 years.

There is a profusion of elephant images in the sculptures of all the ancient and famous temples of Khajurao, Ajanta Elora, Badami & Pattadakal, Belur/Halebid, Hampi, Tanjore and many other temples in the south.
Elephants, even today are maintained by a lot of Hindu temples, especially in the south. Gurvayur in Kerala maintains several temple elephants which are used in religious processions. The pageant of the caparisoned elephants in the world famous Mysore Dussera is an annual feature that still continues to attract large number of visitors from abroad.
Elephants were the prized possessions of the Indian kings throughout the history of India. They were an integral part of their pomp and pageantry. The Mauryan kingdom maintained a large elephant army of about 9,000 elephants. The passion of the Hindu kings for elephants was passed on to the Muslim rulers who maintained large elephant stables or pil-khanas. The Moguls captured a large number of elephants both for their armies and their sports hunt. Jehangir (1605-1627 AD) reputedly maintained a stock of 12,000 elephants in his army.

There is a profusion of elephant images in the sculptures of all the ancient and famous temples of Khajurao, Ajanta Elora, Badami & Pattadakal, Belur/Halebid, Hampi, Tanjore and many other temples in the south.
Elephants, even today are maintained by a lot of Hindu temples, especially in the south. Gurvayur in Kerala maintains several temple elephants which are used in religious processions. The pageant of the caparisoned elephants in the world famous Mysore Dussera is an annual feature that still continues to attract large number of visitors from abroad.
Elephants were the prized possessions of the Indian kings throughout the history of India. They were an integral part of their pomp and pageantry. The Mauryan kingdom maintained a large elephant army of about 9,000 elephants. The passion of the Hindu kings for elephants was passed on to the Muslim rulers who maintained large elephant stables or pil-khanas. The Moguls captured a large number of elephants both for their armies and their sports hunt. Jehangir (1605-1627 AD) reputedly maintained a stock of 12,000 elephants in his army.

THE DECIMATION

“There was a strange conjunction between wilderness and civilization in these elephants. One moment we saw them as living monuments to the past and symbols of the vanishing forests. The next they evoked visions of the pomp of kings and emperors, and of docile beasts of burden hauling logs out of forests, ironically assisting the destruction of their home. They seem lost between two worlds” -

George B. Schaller in the Foreword to Raman Sukumar’s book “Elephant Days & nights”.

The elephant has been around in India for a considerable amount of time, right from mid-Pliocene, for nearly four million years. Now, they face a precarious existence and a possible extinction in not too distant a future.

Demand for ivory, combined with habitat loss from human settlement, has led to a dramatic decline in elephant populations in the last few decades. In 1930, there were between 5 and 10 million African elephants. By 1979, there were 1.3 million. In 1989, when they were added to the international list of the most endangered species, there were about 600,000 remaining, less than one percent of their original number.Asian elephants were never as abundant as their African cousins, and today they are even more endangered than African elephants. At the turn of the century, there were an estimated 200,000 Asian elephants. Today there are probably no more than 35,000 to 40,000 left in the wild and Indian population is now around 25,000 animals.

By the end of the tenth century, the wild elephant had disappeared from most of the northern Indo-gangetic plains, the river valleys in the southern peninsula, and the coastal tract. The distribution of wild elephant seems to have remained largely unchanged at the end of the Mogul rule, until the middle of the nineteenth century. One population extended along the Himalayan foothills into the hills of the northeast, another large population roamed over the Western Ghats and tracts of the Eastern Ghats, while a third smaller population was confined to primarily Orissa and Bihar.
During the nineteenth century, the British penetrated the hill forests and began cultivating tea and coffee on a large scale. Capturing combined with the clearance of the elephant’s jungle for plantation became a powerful depletion force. They also helped decimate the wild elephant population in these tracts through their sport of hunting ‘big game’. The killing of elephant for sport had not been part of the Indian ethos. One British planter is reputed to have shot about 300 elephants, most of them cows and calves, in the Wyanad district of Kerala. Some of the Indian rules of the princely states in imitation of the colonial rulers, also began hunting elephants for sport. It is estimated that 30,000 to 50,000 elephants were captured or shot in India, largely in the northeast, during the period 1868 to 1980. This figure could be as high as 1,00,000 for Asia as a whole.
The country’s forests have shrunk by over 30% since independence in 1947. Dams have submerged river valleys in the forests , mines have stripped entire hill slopes bare and the burgeoning population has pushed further into the forests. The colonization of the terai moist forests along the Himalayan foothills has separated the elephant population of the northwest and the northeast. Poaching and killing of elephants by ivory hunters (In 1982 over a dozen elephants were shot in the Satyamangala division in Tamil Nadu) has been rampant and seems to continue unabated in spite of the government’s new ivory trade policy. In recent years, the man-animal conflict appears to be on the increase. The elephants raid fields and orchards doing a lot of damage to the crops, often turning violent. The reason for this conflict is very apparent. The fast reduction of their habitats and closing or blocking of their regular corridors has resulted into the elephant encroaching on human settlements that results into both man killing the animal and the animal attacking the man.

The Asian Elephant

Indian elephant, known with the scientific name of 'Elephas maximus indicus', is a subspecies of the Asian Elephant. It is mainly found in the Indian subcontinent, that to in the scrub forested areas. The other counties where Asian elephants are found include Bangladesh, Bhutan, Borneo, Cambodia, China, Laos, Malaysia, Myanmar, Nepal, Thailand, Sumatra, and Vietnam. Since Indian elephants are very huge and can trample all other creatures, they have no natural enemies. Even lions, hyenas, and tigers attack only the very young elephants and not adults.

Physical Traits

Asian elephants of the Indian subcontinent grow to a height of between 8 ft and 10 ft. Slightly smaller than the African elephant, they weigh as much as 7,000 to 11000 pounds. The feet of an Asian elephant are very large and broad, which enables it to balance its enormous weight quite easily. There are thick soles below the feet, which absorb shock and cushion legs, when the elephant walks and runs. Their length varies between 216 inches and 252 inches.
The huge and beautiful tusks of the Indian elephant only serve as the icing on the cake. These tusks are actually incisor teeth made up of ivory, which may grow up to 5 ft in length. The tusks are used by the elephants in digging for food, clearing debris, and carrying logs. The only other animal that has ivory tusks is the walrus.

Natural Habitat

Though Indian elephants are found everywhere, they prefer the scrub forests of India, with abundant food supply and shady areas. They do not stay at a particular place for more than a couple of days. One of the reasons for this is that their diet is very huge and they have to move to new areas to keep them supplied with food all the times. At times, you find Asian elephants roaming around in the Indian jungles. However, this is possible only if there is a there's a meadow or open space (with grass) around. They also prefer muddy areas in summers, where they can cool off during the hot daytime.

Diet

Asian Elephant is herbivorous and survives on bamboo, berries, mangoes, bananas, shrubs, tree foliage, wood, apples, wild rice and coconuts. Only half of the food eaten by elephants is used by their body. Therefore, it is necessary for them to eat 330 and 350 pounds of food every day. Their diet also consists of approximately 22 to 30 gallons of water per day.

Behavior

The groups (herds) of elephants are matriarchal i.e., a female elephant leads the herd. Males remain isolated and rarely form groups. They usually join the herd only when the mating season approaches. The members of a herd make use of a number of gestures and sounds while communicating with each other. Their sense of commitment towards the other members of the group is very strong. A female elephant protects her young one very fiercely. In her absence, this responsibility comes in the hands of the other females of the herd.

Mating Behavior

Male elephants fight to establish rights over a female herd. Indian elephants reach maturity by the age of twelve. The gestation period is between 630 and 660 days and the number of offspring is only one. The baby elephant is known as calf and usually weighs between 200 and 250 pounds.

Senses

Indian elephants are highly intelligent creatures and have acute senses of hearing and smell. They have large ears and can hear even those sounds that other animals do not. However, elephants have poor vision and their small eyes can see only up to 60 ft. Even though they are huge, elephants can easily balance their weight on two legs, especially while reaching the leaves of a tree. Even their sense of smell and sense of taste is very delicate.

PROJECT ELEPHANT

Realising the indiscriminate slaughter that was taking place, the British in 1873 in Madras enacted the first law to prevent the rampant slaughter of the herds. Six years later, British India as a whole followed suit. But the so called legal killing and poaching continued.
By eighties it was clear as a day light that unless the government comes forward and try and save the animal its future was doomed. The estimated population of elephants in India had dropped to 15,000-18000 animals in 1980s. The Government of India launched the Project Elephant in 1992 to help save the elephant.

The project was predicated on the need to focus conservation action on the Asian Elephant and its habitat, which currently face a number of threats. The main threats included: a) Reduction and fragmentation of habitat and consequent isolation of populations into small and genetically unviable units; b) Conflicts between wild elephants and human populations, leading to loss of human life and property and retaliatory killing of wild elephants; c) Poaching of elephants for ivory and, in some parts of the country, for meat; d) Elephant mortality due to other causes, such as from transmission lines, rail lines, highways etc., passing through the elephant habitat and other natural causes such as floods; e) Inadequate finance, infra-structure and human resources for proper implementation of management priorities at the field level. Project Elephant differs from other wildlife conservation projects such as Project Tiger in that it covers not only the protected areas (national parks and sanctuaries) but also other areas, which constitute the habitat of the wild elephants such as reserved and protected forests and other habitats. The projects covers an area of approximately 60,000 sq kms in 12 states, namely, Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Karnataka, Kerala, Meghalaya, Nagaland, Orissa, Tamil Nadu, Uttar Pradesh and West Bengal. Under Project Elephant, 11 elephant reserves have been identified in the country.

Since the launch of the Project Elephant there are indications of the population faring better.

Some of the positive impacts of the project are :

a) The Mahananda sanctuary in West Bengal today retains elephants throughout the year as against about one month annually at the beginning of the project. b) Elephants displaced from Tamil Nadu in 1985-86 have been accommodated in the forests of Andhra Pradesh and restricted to the Kaundinya sanctuary. c) Human-elephant conflict in Madhya Pradesh resulting from displaced elephants from Bihar has been specifically mitigated. d) Wild elephants straying towards Calcutta in South-West Bengal have been controlled. e) There is a downward trend in the loss of human life from human-elephant conflict in the states of Karnataka, West Bengal and Andhra Pradesh. The major areas of concern yet to be fully addressed under the project include : a) Inter-state co-ordination for succe-sful implementation of the project, particularly anti-poaching efforts. b) Rationalisation of human use of various habitats included within the elephant's range of distribution. c) Problems arising out of displaced and disoriented elephants, resulting from habitat fragmentation and their population growth. d) Genetic isolation of certain populations and imbalance in the sex ratio. e) Control of poaching and illegal trade. These are some of the major priorities, in addition to the on-going efforts which the project seeks to address in the coming years.

The elephant is considered a symbol of fertility, wealth and abundance. The status of the elephant is a good indicator of the health of the habitat. A habitat which is good for elephants is also good not only for its associate species like sambar, cheetal, kakar but also for predators such as panthers and tigers. The habitat will also have to be flora-rich to support animal biodiversity. When the forest is good for all these animals, the eco-system is in good condition, which means the water regime is right and so also the condition of the soil. Because the elephant requires a much larger home range than any other terrestrial animal, it is usually one of the forest species which has to suffer the consequences of habitat fragmentation and destruction. The historical and present day distribution of the elephant in the Indian sub-continent is in many ways a record of the progressive deterioration of the environment in the sub-continent.

References: Elephant Days & Nights by Raman Sukumar, India’s Wildlife History by Mahesh Rangarajan, Wikipedia.

Picture credit: Pic 1 by: V. Ramnarayana

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Vanishing Species - Hoolock Gibbon

An Article by Mohan Pai



Hoolock Gibbon
Hoolock hoolock

Hoolock Gibbon is the only ape to be found in India and is a rare, highly endangered species.

Hoolock gibbon also known as white-browed gibbon, is the most accomplished acrobat of all the apes. A round face with a distinctive white band in place of eyebrows, long arms and absence of tail are the distinguishing features of this ape. Its flexible shoulder joints permit greater freedom of arms movement. Its long hands fasten on to branches like hooks. It seizes the branch with one hand, then it swings forward to grasp the next branch with the other hand, and in this way covers m in a single swing, almost literally skimming through the forest canopy at amazing speed. The most common position is hanging and sometimes swinging to and fro, referred to as ‘the crucifixion pose’.
The gibbon’s arms are very long, allowing the fingertips to touch the ground when the animal stands. On the ground the hoolock has a very characteristic gait. Its nose-bridge is more prominent than that of other apes. The gibbon would look quite human if it were not for the fairly heavy brow ridges and the low, sloping forehead.

Hoolock gibbon inhabits all the 7 states of northeast India from 100 to 1,370 m, and the northern, north- east and northwest limit of its range is the river Brahmaputra (Dibang in Arunachal Pradesh) which acts as a physical barrier for its distribution. It inhabits primary evergreen and less seasonal parts of semi-evergreen rainforests and rarely semi-deciduous forests. Habitat loss jeopardizes its survival and it is hunted in its entire range.

Hoolocks are the second largest of the gibbons, after the Siamang. They reach a size of 60 to 90 cm and weigh 6 to 9 kg. The genders are about the same size, but they differ considerably in coloration: males are black colored with remarkable white brows, while females have a grey-brown fur, which is darker at the chest and neck. White rings around the eyes and around the mouth give their face a mask-like appearance.The range of the hoolock extend from Assam in North-East India, to Myanmar. Small populations (in each case few hundred animals) live also in the eastern Bangladesh and in southwest China. Like the other gibbons, they are diurnal and arboreal, going through the trees with their long arms. They live together in monogamous pairs and stake out a territory. Their calls serve to locate family members and ward off other gibbons from their territory. Their diet consists mainly of fruits, insects and leaves.Young hoolocks are born after a seven month gestation, with a milky white fur. After about six months their fur turns black. After 8 to 9 years they are fully mature and their coat reaches its final coloration. Their life expectancy in the wild is about 25 years.

In India and Bangladesh its range is strongly associated with the occurrence of contiguous canopy, broad-leaved, wet evergreen and semi-evergreen forests. The species is an important seed disperser; its diet includes mostly ripe fruits, with some flowers, leaves and shoots. Western hoolock gibbons face numerous threats in the wild, and are now entirely dependent on human action for their survival. The debilitating threats include habitat encroachment to accommodate ever-growing human populations and immigration, forest clearance for tea cultivation, the practice of jhuming (slash-and-burn cultivation), hunting for food and “medicine”, capture for trade, and the degradation and decline in quality of their forests that impacts fruiting trees, canopy cover and the viability of their home ranges. Isolated populations face the additional threats arising from the intrinsic effects of small populations. Some populations surviving in just a few remaining trees are subjected to harassment by locals and to lack of food, and are attacked by dogs while attempting to cross clearings between forest patches.

Mostly hunted for food, it is also hunted for other purposes such as ornamentation, taboo, religious ceremonies, traditional medicine, etc. without any restriction.It is listed under Schedule I of the Wildlife (Protection) Act, 1972. IUCN SSC–Red Data Red Book records this species in the ‘Data deficient’ category.

Pic 1:Female Hoolock gibbon. Pic by: Dhritiman Mukherjee

Pic 2: "The Crusifixion Pose" by Ritu Raj Konwar

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