
African Gemsbok
The Gemsbok is a large
antelope of striking appearance with long, spearlike horns. It has a
thick, horselike neck with a short mane and a compact, muscular body.
A defined pattern of black markings that contrast with the white face
and fawn-colored body are prominently displayed in dominance rituals
to emphasize the length of horns and strength of the shoulder.
The
head is marked with black triangular patches and broad black stripes
that extend from the base of the horns over the eyes to the cheeks. A
ring of black encircles the throat and runs down the neck to the
chest. The ears end in a black tip (a black tassel hangs from the ear
tip of the fringe-eared oryx). A narrow black stripe runs along the
spine, and another one separates the lower flank from the white
underparts of the body. The white forelegs have a black ring above
the knee and a black patch below. The black tail tassel reaches to
the hocks.
The oryx's ringed horns are up to 30 inches long,
making them formidable weapons. The female's horns are often longer
and thinner than the male's.
Habitat:
Originally, various oryx species were found in all of
Africa's arid regions. One species that occurred on the Arabian
Peninsula was exterminated recently but has now been reintroduced
into the wild from captive stock. Well adapted to the conditions of
their hot, arid habitats, oryx can live as long as 20 years.
Diet:
Oryx typically feed in early morning and late afternoon and
sometimes on moonlit nights. Their diets consists mainly of coarse
grasses and browse from thorny shrubs. In desert areas they consume
thick leaved plants, wild melons, as well as roots and tubers they
dig out of the ground.
Gemsbock may drink if water is
available but can survive days or even weeks without it.
Plants
growing in arid areas inhabited by oryx have also adapted to the hot,
dry conditions and either store water or have mechanisms to prevent
excess loss. Plants collect dew, gradually releasing it during the
hotter parts of the day. Some plants increase their water content by
25 to 40 percent, so when oryx feed late at night or early in the
morning, it provides them with both food and water.
Predators:
Lion,
wild
dog and hyena.
Reproduction:
The female comes into heat soon after giving birth. The more
frequent estrus cycles enable females to produce calves at 9-month
intervals.