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Tigers, White tigers, Siberian
tiger, Bengal tigers, Cats
My Favorite Wild Animal.

Most Bengal tigers live in
India, and some range through Nepal, Bangladesh, Bhutan, and Myanmar.
Their esimated population is approximately 3,250-4,700 tigers, with
roughly 333 in captivity, mostly in zoos in India. White tigers are
basicaly a color variant of the Bengal tiger and are rarely found in
the wild.
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Tigers in the Wild:Bangladesh,
Bhutan, India, Myanmar and Nepal
Tigers
are an Asian species, found from the frozen tundra of the Soviet Far
East, south to the humid jungles of Malaya and Indonesia, and west to
the hot, hardwood forests of India. There are five living subspecies;
three others are already extinct. Current estimates put the world
population of wild tigers at about 5,000-7,000, the most numerous
race being the Bengal race, distributed among some 18 tiger reserves
and sanctuaries of India (and a half-dozen in Nepal and Bangladesh),
accounting for over two-thirds of all wild tigers.
Every once in a great while, a
white tiger appears in the wild. White tigers differ from ordinary
orange tigers (if a tiger can be referred to as ordinary) in having ice-blue
eyes, a pink nose, and creamy white fur with chocolate stripes.
White tigers are not albinos; their color is caused by a double
recessive allele. A Bengal tiger with two normal alleles or one
normal and one white allele is colored orange. Only a double dose of
the mutant allele results in white tigers.
How frequently do white tigers
appear in nature? No one knows. But we do know that in the last 100
years, only about a dozen such white tigers have been seen in India
(white forms have never been reported for any of the other
subspecies). During this same century, the Bengal tiger population
has dropped from 40,000 to a low of 1,800 tigers, and approximately
100,000 have lived and died, suggesting that as few as one in every
10,000 tigers is white.

The white tiger collection in
North American zoos traces its ancestry to a single white male known
as Mohan, captured in 1951 in central India. It did not take long for
the Maharajah who captured him to figure out that the only way to
produce additional white tiger cubs was to breed Mohan back to his
daughter, who gave birth to the first generation of captive-born
white tigers in this century. One of these granddaughters, Mohini,
was bred with her uncle and half-brother, an orange male called
Sampson. It was through Mohini that the white tiger line came to the
United States through the National Zoo in Washington D.C., From
there, two of Mohini's offspring, a brother and sister, were bred at
the Cincinnati Zoo and their daughter, Kesari, founded the Cincinnati
white tiger line.
In Cincinnati, the inbreeding
continued. Bhim, a white son of Kesari, was mated to his sisters
Kamala and Sumita, and so on. Altogether, the average inbreeding
coefficeint of the white tiger lineages is much higher that that of
either Sumatran of Siberian tigers managed by the tiger SSP which is
methodically working towards minimizing the average inbreeding
coefficient of its captive population. This translates into a
healthier population and decreases the probability of a number of
reproductive and disease problems associated with inbreeding.

An SSP is a breeding strategy
followed by participating zoos that is designed to maintain small
self-sustaining populations of endangered species in captivity. Every
breeding recommendation is designed to minimize the average
inbreeding coeffcient of the population and to equalize the genetic
representation of each wild-caught animal ("founders" of
the captive population). With some 63 such species blueprints in
hand, zoos are increasingly becoming last-ditch refuges for
endangered species, as a kind of biological (rather than biblical)
Noah's ark. Already on board are several species now extinct in the
wild that survive only in zoos, including Pere David's deer and Asian
wild horses, and three additional species, the California condor,
Arabian oryx, and black-footed ferret, are currently making their way
back into the wild thanks to captive breeding.

The white tiger controversy
among zoos is a small part ethics and a large part economics. For
example, the tiger SSP has condemned breeding white tigers because of
their mixed ancestry (most have been hybridized with other subspecies
or are of unknown lineage) and because they serve no conservation
purpose. Owners of white tigers say white tigers are popular exhibit
animals and help increase zoo attendance and, at $60,000 each,
revenues as well. The same story can be applied to the selective
propagation of melanistic leopards, white lions, king cheetahs, and
other phenotypic aberrations.
However,
there is an unspoken issue that shames the very integrity of zoos,
their conservation programs, and their message to the visiting
public. To produce white tigers or any other phenotypic curiosity,
directors of zoos and facilities must continuously inbreed, father to
daughter, to granddaughter, and so on. At issue is a contradiction of
fundamental genetic principles upon which all SSPs for endangered
species in captivity are based. White tigers are an aberration
artificially bred and proliferated by a few zoos, private breeders,
and circus folks, who do this for economic rather than conservation reasons.
Tigers
Tiger
/ Tiger Animations
/ Fake
Tiger Images /
White Tigers
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