Every week, I am trying to bring you a different
antelope that I saw on safari and this week it is the turn of the beautiful
Common Waterbuck. Some of the shots were
taken at Game Haven and others were taken at Majete, both games parks at in
Malawi.
The Waterbuck (Kobus ellipsiprymnus) is a large
antelope found widely in sub-Saharan Africa. It is placed in the genus Kobus of
the family Bovidae. It was first described by Irish naturalist William Ogilby
in 1833. The thirteen subspecies are grouped under two varieties: the Common or
Ellipsen Waterbuck and the Defassa Waterbuck.
The head-and-body length is typically between 70–93 in and the average height is between 47 and 54 in. A sexually dimorphic antelope, males are taller as well as heavier than
females. Males typically weigh 437–578 lb and
females 355–472 lb. The coat colour varies from brown to grey. The
long, spiral horns, present only on males, curve backward, then forward and are 22–39 in long.
The Waterbuck is of a robust build. The shaggy coat is
reddish brown to grey, and becomes progressively darker with age. Males are
darker than females. Though apparently
thick, the hair is sparse on the coat. The hair on the neck is, however, long and
shaggy. When sexually excited, the skin of the Waterbuck secretes a greasy
substance with the odour of musk, giving it the name "greasy kob". This secretion also assists in water-proofing
the body when the animal dives into water.
The facial features include a white muzzle and light eyebrows and lighter insides of the ears. There is a cream-coloured patch (called "bib") on the throat. Waterbuck are characterised by a long neck and short, strong and black legs.
The principal differentiation between the two types is
the white ring of hair surrounding the tail on the rump, which is a hollow
circle in the Common Waterbuck but covered with white hair in the Defassa Waterbuck. It is known as the 'toilet seat' antelope and that made it easy for me to ID!!
Waterbuck are slower than other antelopes in terms of
the rate of maturity. While males become sexually mature at the age of six
years, females reach maturity within two to three years. Females may
conceive by the age of two-and-a-half years, and remain reproductive for
another ten years.
In equatorial regions, breeding takes place throughout the year, and births are at their peak in the rainy season. However, breeding is seasonal in the Sudan (south of Sahara), with the mating season lasting four months. The season extends for even longer periods in some areas of southern Africa. Oestrus lasts for a day or less.
Mating begins after the male confirms that the female
is in oestrus, which he does by sniffing her vulva and urine. A resistive
female would try to bite or even fight off an advancing male. The male exhibits
flehmen, and often licks the neck of the female and rubs his face and the base
of his horns against her back. There are several attempts at mounting before
the actual copulation. The female shifts her tail to one side, while the male
clasps her sides with his forelegs and rests on her back during copulation,
which may occur as many as ten times.
The
gestational period lasts for seven to eight months, followed by the birth of a single
calf. Twins are rare. Pregnant females isolate themselves and into thickets as
parturition approaches.
Newborn calves can stand on their feet within
half-an-hour of birth. The mother eats the afterbirth. She communicates
with the calf by bleating or snorting. Calves are kept hidden for two to
three weeks or even two months.
At about three to four weeks, the calf begins following its mother, who signals it to do so by raising her tail. Though bereft of horns, mothers will fiercely defend their offspring from predators.
The Waterbuck lives to 18 years in the wild and 30 years in captivity.
I hope you enjoyed this post about the Common Waterbuck.
Thanks for visiting.
Many thanks for
leaving your kind comments on my post
