Javan Rhinoceros/ Rhinoceros sondaicus:
(Rhinoceros sondaicus): Rhino from the Greek dictionary means "nose" while ceros, means horn. In addition, sondacius
refers to the Sunda (Java) islands in Indonesia, (Latin –icus)
indicates a locality.
The Javan rhino is the rarest of the rhino species with fewer
than 100 animals surviving in only two known locations, one in
Indonesia and the other in Vietnam. Rhinos have been poached from
these small populations in recent years and much more intensive
protection is needed if this species is to survive.
Height:The Javan
rhinoceros is 1.5 - 1.7 m (5 - 5.5 ft) tall at shoulder and its single
horn is about 25 cm long.
Weight: The Javan rhinoceros weigh up to 900 - 1,400 kg (2,000 -
3,000 lbs).
Distribution: The Javan Rhinoceros used to be found in Malaya,
Burma, Thailand, Indochina, Java, Sumatra and Northern India. But
due to the loss of habitat and uncontrolled poaching, there are only
about 40 - 60 rhinos surviving in Ujung Kulon National Park on the
island of Java in Indonesia and 10-15 more rhinos Cat Loc Nature
Reserve in Vietnam. There are currently no animals reported to be in
captive.
Javan Rhinos favour dense lowland tropical rainforest with a good
supply of water and plentiful mud wallows. Some animals have also
been recorded in rainforests that are above 1,000 m.
Appearance: The Javan rhinoceros is of a dusky grey colour with a
single horn. The Javan rhinoceros has a skin thathas a number of
loose folds giving the appearance of armour plating. Although this
species is very similar in appearance to the closely related Great
Indian Rhinoceros, it is slightly smaller, with a much smaller head
and less developed folds of skin on the neck. Recent research done
have shown that horns may be absent in females. The Javan rhinoceros
is also unlike its Sumatran cousin as its body is not covered with
hair.
Behavior: The Javan rhinoceros has many same similarities with
the Sumatran rhinoceros in terms of behaviour. Like its cousin, it
is a solitary animal with the exception of mothers and their young.
The Javan rhinoceros is also well-known for its marking behavior and
although mostly a browser, the animal will also graze.
Diet: The Javan rhinoceros like the Sumatran rhinoceros, is a
herbivore. It feeds on shoots, twigs, young foliage and fallen
fruit. It can feed on food up to 50 kilograms of food daily.
Lifespan: It is estimated that a Javan rhinoceros can live for
about 35 to 40 years.
Reproduction: Female Javan rhinoceros become sexually mature at
ages of 3 to 4 while the males become sexually mature at 6
years.
Gestation period of Javan rhinoceros is
approximately 16 months, and the interbirth interval of one calf is
every 4 to 5 years. The single offspring is active soon after birth,
being suckled by the mother for at least one and perhaps two years. Till now, no defined mating season by the
Javan rhinoceros has been observed.
Why it is Endangered: Loss of habitat and massive poaching are
the two main reasons for the Javan rhinoceros to be critically
endangered today.
The two small Javan Rhino populations inVietnam and Indonesia are
extremely susceptible to poaching, disease, or natural disaster. The
populations are probably also prone to inbreeding depression and
genetic erosion.
Poaching occurs mainly for body parts, especially the horn, which
are believed to have medical abilities. The body parts of the Javan
rhinoceros is used in traditional Asian medicines.
For example, in South Korea, the horn is used primarily for the
treatment of a variety of ailments ranging from epilepsy, fevers,
strokes and even AIDS. A reputable Taiwanese doctor recently argued
that rhino horn was irreplaceable in medicine, a statement that was
supported by a survey of medical practitioners. It is also said that
the horn of the Javan rhinoceros is more medicinally effective than
that of the African rhinoceros.
Conservation: Probably less than 75 Javan rhinoceros
roam the Earth today. In addition, both remaining Javan Rhino
populations are found in protected areas, and it has been said that
this would ensure that the Javan rhinoceros would not go extinct.
Today, between 23 and 60 Rhinos are present in Ujung Kulon National
Park, Java.
A small population estimated at between 8 and 15 animals was
recently discovered in Vietnam. In vietnam, it has been proposed to
link the 35,000ha area of Javan Rhino distribution in Vietnam with
the adjoining 45,000ha Nam Bai Cat Tien National Park to increase
the chances of reproduction among the Javan rhinoceros.