Cheetah Acinonyx jubatus
The Cheetah, with its strange mixture of dog-like and cat-like features,
is one of the world’s most popular cats. Famous for being the fastest land animal, their speed has been
estimated at about 110 km/hour for a brief
period. This kind of speed is only possible over open ground, thus they are limited in their range.
The fur has a background
colour of light golden yellow, covered with small, round, black spots on the cheeks, forehead, crown, neck, and
limbs. The tail, spotted above and pale below, has three to six black rings near the end, and a white
tip.
One of their most distinctive
features is the black line, or tear stripe, running from the eye to the corner of the mouth. The ears are black,
but tawny at the base and edges. They have a mane-like black stripe
running the length of their back. In some animals this stripe is highly pronounced, and the body spots flow
together to produce stripes and blotches. Animals with this coat pattern are called King Cheetahs.
Distribution
Once ranging over most of Africa’s open areas and the grasslands of India,
Pakistan, Russia, Iran and the Middle East, the majority of these cats are
now found in east and southern Africa. Cheetahs have lost 76% of their historic range in Africa, and their
population is currently estimated at less than 15,000.
Where large-scale ungulate
migration patterns are still intact, wide-ranging solitary females – average home range of 800 km2 –
pass through small temporary territories of around 50 km2, held by small groups of males. In areas
where prey is non-migratory, males and females have overlapping home ranges that are similar in
size.
On the Serengeti plains,
densities range from 0.8/100 km2 to 1.0/100 km2, but they can congregate seasonally,
bringing densities up to 40/100 km2.
In 1993, a remnant population
was found in Egypt. These northern cats are smaller and stockier than their southern cousins. They also have
unusually large ears, and a pronounced, square muzzle. The coat colour is lighter, and the black markings
muted.
These cats are found in the
Sahara Desert and savannahs of north and west Africa. Their population is small and fragmented, and researchers
estimate they number less than 250 animals.
Ecology
HB Length: 121-145 cm (48-57")
Tail Length: 63-76 cm (25-30")
Height: 75-85 cm (29-33")
Weight: 36-59 kg (79-130 lbs) |
The Cheetah shows many adaptations for fast running. Long
legs and a flexible spine permit a long stride length for extra speed, exposed claws act like running spikes, and
large nostrils assist breathing and cooling off during and after a sprint. Their canines are relatively small,
leaving a larger nasal aperture between the roots for more air intake following the chase. They have a relatively
larger heart, lungs, adrenal glands and air passageways as well. Their feet are equipped with hard pads that have
ridges, possibly acting like anti-skid treads. The long tail is essential as a
counterbalancefor turning.
Cheetahs rely on
stalking to within about 30 metres of their prey,
and then a short sprint of 20 - 60 seconds. When they catch up to a fleeing animal, they attempt to knock it off balance with a swipe of
a front paw. Actually, they
are trying to hook it with the
enlarged front dew claw which is located up off the ground on the inside of the front leg. Larger hoofed
animals are taken by cooperating groups of males, usually litter-mates. Cheetahs apparently do not require
fresh water, obtaining enough moisture from their
prey.
These cats hunt more often in the daytime than the other
carnivores in their range, for a number of reasons. First is the need to see the terrain during high speed chases;
second, they can eat their prey with less chance of disturbance from nocturnal carnivores. In the Saharan
mountains, where larger predators no longer survive, the Cheetahs hunt during the cooler night
hours.
Females are solitary and appear not to be territorial.
They tend to follow the prey animals and will overlap with other females in the same area. Related young males form
groups of two to four and occupy small territories. These coalitions defend their territories against other males
for all or most of the year. Coalition males appear to live longer, healthier lives and so may have more years for
breeding than solitary males.
Reproduction
Unlike most cats, Cheetahs do
not have a regular breeding season. Cubs may be born in any month. The average litter size is three, but the
range is from one to eight. The gestation period is 90 - 98 days, with the birth size 150 - 300
grams. Their eyes open
around four to 11 days of age. The cubs are kept hidden in dense grass or under bushes until five or six
weeks of age. The blue grey ruff or mane running down their back probably aids in
camouflaging them during this
time. Weaning occurs around three months. Males do not take part in the rearing of the cubs, and are actually
predators on the young. Many other carnivores will kill young Cheetahs, including hyenas,
LionsPantheraleo,
LeopardsPantherapardus,and
eagles. Less than one third of a litter is likely to survive to adulthood.Normally living to a
maximum of 11 years, record longevity has been recorded at 17 years.
Conservation
Ten to twelve thousand years
ago, the Cheetah suffered a massive die-off. Prior to this, there had been many different species, but only a
small number of the modern species survived. It is from this remnant population that all Cheetahs alive today
have descended. As a species, they are genetically identical, with only 2% genetic variation compared with 10%
or more in other cats. A skin graft from any Cheetah will grow normally on any other Cheetah in the world, while
a graft from any other cat will wither and die. The potential for a virus to wipe out large numbers is high
because of the lack of variation in disease resistance.
Habitat loss and
fragmentation, conflict with people and depletion of their prey species are the most serious threats to the
survival of the Cheetah in Africa. Competition with larger carnivores also leads to Cheetahs achieving higher
densities outside of protected areas.See also Asiatic Cheetah page.
Cheetahs are classified as
Endangered (2008).
See also The Cheetah
Conservation Fund
Photo copyright Peter
Cromer
Range map IUCN Red Data List
(2008)
Updated 2011
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