Showing posts with label T. Show all posts
Showing posts with label T. Show all posts

Friday, August 29, 2008

Sumatran Tiger

Sumatran Tiger


The Sumatran tiger (Panthera tigris sumatrae) is a subspecies of tiger found on the Indonesian island of Sumatra. The wild population is estimated at between 400 and 500 animals, occurring predominantly in the island's national parks. Recent genetic testing has revealed the presence of unique genetic markers, which isolate Sumatran tigers from all mainland subspecies.

Characteristics
The Sumatran tiger is the smallest of all still existing tiger subspecies. Male Sumatran tigers average 234 cm (7 feet, 8 inches) in length from head to tail and weigh about 136 kg (300 pounds). Females average 198 cm (6 feet, 6 inches) in length and weigh about 91 kg (200 pounds). Its stripes are narrower than other subspecies of tigers' stripes, and it has a more bearded and maned appearance, especially the males. Its small size makes it easier to move through the jungle. It has webbing between its toes that, when spread, makes Sumatran tigers very fast swimmers. It has been known to drive hoofed prey into the water, especially if the prey animal is a slow swimmer.

Sumatran Tigers commonly prey on larger ungulates, like wild boar, tapir and deer, and sometimes also smaller animals, like fowl, and fish. Orangutans could be prey, but since they spend a minimal amount of time on the ground, tigers rarely catch one.

Wikipedia

Tuesday, December 4, 2007

The Sumatran tiger (Panthera Tigris Sumatrae)

Wild Sumatran tigers have survived within the isolated and somewhat continuous political environment of the Island of Sumatra. This has afforded researchers, such as The Sumatran Tiger Project team, an opportunity to study these animals’ genetic status in their natural habitat over an extended period of time. As a result, important first-hand field data has been generated which is relevant to all the surviving tiger subspecies.

Tigers eat mostly sambar, chital, Red deer, Swamp deer, Rusa deer, and Wild pigs. Occasionally, however, they will kill a rhino or elephant calf. About one in ten or twenty attempts to catch prey is successful. Unlike the cheetah, the large tiger cannot outrun most of its prey. Instead, it relies on the element of surprise by hiding in the tall grass and ambushing it prey.

The Sumatran tiger represents a uniquely hopeful opportunity for the survival of an individual subspecies of tiger in the wild. Specifically, the animal is isolated geographically to the island of Sumatra in Indonesia. This is important for many reasons. First, the animal has been genetically isolated. This offers felid biologists the opportunity to study the effects of such genetic isolation on a particular subspecies, unlike other surviving subspecies, which until the beginning of the last century, could roam among and between the realms of neighboring subspecies.

Unlike the cheetah and lion, the tiger does not live in open areas. They rely on ambushing their prey, which requires something to hide them. As a result, they prefer to live in moderate to dense cover.

Sumatran tigers are especially well represented in zoos around the world, most of which participate in sophisticated global conservation breeding programs. More than 270 Sumatran tigers are now documented in formal studbooks and are involved in captive breeding programs aimed at preserving their genetic uniqueness. This captive population is occasionally supplemented by wild Sumatran tigers, which are captured when they come into conflict with their surrounding human populations, or are rescued from situations that preclude them from living in the wild. Thanks to the presence of a one-of-a-kind research facility at Taman Safari on the island of Java, these tigers and their extremely rare genes can be preserved instead of being exterminated like most other problem tigers. Through an important scientific, community and political collaboration, these tigers have been spared so that their precious genes may bolster breeding programs for the Sumatran subspecies.

After a gestation period of about 103 days, the mother tiger gives birth to 2-4 cubs. The cubs weight about 2.2 pounds each, are totally blind, and completely helpless. The mother raises them alone, since the male tiger does not stay with any one of his several mates. The mother hunts and periodically returns to her den to feed her cubs. Later, the cubs will join her on the hunt and will learn the art from their mother.

The Sumatran tiger represents a uniquely hopeful opportunity for the survival of an individual subspecies of tiger in the wild. Specifically, the animal is isolated geographically to the island of Sumatra in Indonesia. This is important for many reasons. First, the animal has been genetically isolated. This offers felid biologists the opportunity to study the effects of such genetic isolation on a particular subspecies, unlike other surviving subspecies, which until the beginning of the last century, could roam among and between the realms of neighboring subspecies.

Wild Sumatran tigers have survived within the isolated and somewhat continuous political environment of the Island of Sumatra. This has afforded researchers, such as The Sumatran Tiger Project team, an opportunity to study these animals’ genetic status in their natural habitat over an extended period of time. As a result, important first-hand field data has been generated which is relevant to all the surviving tiger subspecies.

Thursday, October 18, 2007

Malayan Tapir (Tapirus Indicus)

Malayan Tapir (Tapirus Indicus)
Proboscis Monkey.

The Malayan tapir is found in Southeast Asia in the following countries: southern Burma, Thailand, the Malay Peninsula, and Sumatra. The Malayan tapir occurs in the Sundaland & Eastern Indonesian Archipelago Mangroves, Sumatran-Nicobar Islands Lowland Forests, and Sumatran Montane Forests.
The Malayan tapir weighs about 250 - 300 kg (550 - 660 lb). It utilizes various forested habitats, including swamp, lowland, montane and hill forest and prefers dense primary rainforest. Its diet includes grasses, aquatic plants, leaves, buds, soft twigs and fruits of low-growing shrubs. The Malayan tapir is primarily nocturnal. It travels long distances in search of food, habitually using the same paths. It climbs steep slopes well. Since it likes to bathe and wallow, it is often found around water and forms steps in river banks leading into the water. The Malayan tapir is found in lowland areas in the dry season and moves into mountainous areas with the rainy season. It is usually solitary, except for a female with young.
The Malayan tapir has historically been known from Myanmar and Thailand south through the Malay Peninsula to Sumatra. It still occurs throughout its historical range. However, it has been depleted throughout this range due to capture for the live animal trade, overhunting, and habitat loss, with remnant populations surviving in isolated habitats.
Found in tropical lowland and highland rainforest where there is a permanent supply of water. They tend to shelter in forests and thickets during the daytime, but come out at night to forage on grasslands or near water.


Malayan tapirs have a large stocky body with a prominent proboscis. Adults of this species have a dramatic color pattern, with a black front half of body, white sides, and black hind legs. As dramatic as this color pattern seems to our eyes, it camoflages them well in the shady forest, especially in nights when the moon is out. Eyes are oval and not very mobile. The forefeet have four digits, each of which ends in a hoof. The fourth toe does not touch the ground, so footprints show the imprints of three digits. Hind feet have three digits. This species does not have a mane.
Mating, which occurs in April and May, is characterized by a heated courtship ritual. When sexually excited, tapirs make wheezing and whistling sounds, and attempt to sniff each other's genital regions, often resulting in their going round in circles. They may bite at one another's ears, feet, and flanks. After a gestation period of at least 390 days, one young is born. At birth, young weigh up to 10 kg, which is the heaviest of any tapir species. The young of this species grows more quickly than those of congenerics. When born, tapirs have a spotted and striped coat rather in contrast to the dramatic black and white pattern seen in the adults. Females have offspring every other year. Sexual maturity is reached at about three years of age, and the lifespan is thought to be about 30 years.
Interesting fact:
Malaysian tapirs are nocturnal and solitary, with the exception of mother-offspring pairs. When they encounter one another in the wild, tapirs are aggressive. They communicate with whistling sounds and scent-marking urine. Tapirs are shy and crash off into the bush when humans are around, but will bite if cornered. They are also good swimmers, runners, and hill climbers.
Tapirs are among the most primitive large mammals in the world. Their closest relatives are the horses and rhinoceroses.
The Malayan tapir is a vegetarian non-ruminant. The diet consists of grasses, leaves, aquatic plants, and twigs. Salt is well liked by tapirs, which will go out of their way to find it. Foraging is often done on a repeated foraging route, often with their nose to the ground. Often tapirs forage in a zig-zag fashion. The fleshy proboscis is commonly used as a finger to grab almost out-of-reach leaves and grasses and pull them into the mouth. The stomach is simple, and the intestine has a short cecum.
Tapirs have been known to damage food crops.
Malayan tapirs are hunted for food and sport in non-Moslem regions of their distribution.
Malayan tapirs are classified as endangered by the IUCN and USDI. They are on Appendix 1 of CITES. Habitat destruction and overhunting are the two main factors contributing to their endangered status. Habitat destruction has mainly been a result of agriculture and and increase in cattle grazing.
Natural enemies include humans and tigers.



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