|
Country
Info > Uganda>
Visa Info >
Travel Basics > Uganda
Kingdom >Uganda National Parks
>History & Culture >
Uganda People >
Uganda Gorillas >
Uganda Weather
Uganda
Gorillas
Few
of earth's creatures have captured humankind's attention like the
Uganda gorilla. Although maligned for decades as one of the word's
most ferocious and dangerous beasts, gorillas are now described
as 'gentle giants teetering on the brink of extinction'.
Anatomically, socially, and behaviourally,
humans recognise components of themselves in our largest primate
cousin's physique and lifestyle. Over the past two decades, in-depth
scientific field studies and comprehensive conservation programming
have increased our knowledge of the gorilla, and today individuals
and governments are battling to preserve the and its threatened
forest homes.
Gorillas occur only in Africa. The species Gorilla
gorilla is subdivided into three recognized subspecies: the western
lowland gorilla (Gorilla gorilla gorilla), which occurs in several
countries in west Africa; the eastern lowland gorilla (Gorilla gorilla
graueri), which inhabits remnant forest areas along the eastern
border of Zaire; and the mountain gorilla (Gorilla gorilla beringei),
which occurs only in two separated and extremely small populations
on and near Ugandan, Zairean, and Rwandan borders.
All three subspecies of Gorillas are classified
as endangered; however, where as the eastern and western lowland
subspecies of gorillas are estimated to have populations of about
40,000 and 8,000 respectively, the world population of mountain
gorillas has recently been enumerated at an extremely fragile 600.
DNA analysis of hair samples collected from night nests during these
recent censuses provided scientific evidence linking the Virunga
population of gorillas on the Rwanda/Zaire/Uganda border (309 gorillas)
to the Bwindi Impenetrable Forest gorilla population in Uganda (280
gorillas) approximately 32 kilometres (20 miles) away. This link
effectively doubled the world count of mountain gorillas overnight
and allows Uganda 'boasting rights' to half the world's population
of mountain gorillas.
Mountain gorillas are mainly terrestrial and quadrupedal
- they walk on the soles of their hind limbs, but pivot on the knuckles
of their forelimbs. Gorillas are predominantly herbivorous, feeding
mainly on the leaves, stems and roots of specific plants. Of the
great apes, the gorilla shows the most stable grouping patterns.
Groups are strongly bounded bonded; the same individuals
typically travel togetherfor years at a time. Groups are led by
an adult male or 'silverback'. All males, as they mature, become
silverbacks, developing very distinct characteristics, including
an impressive silver saddle extending across their back from shoulders
to ramp. However, not all silver-backs are successful enough to
ultimately gain leadership of a group.
The size of a gorilla group varies from two to as
many as 35 individuals. Average group size is about nine. In addition,
to a dominant silverback and occasionally one or two subordinates,
the group consists of several adult females, subadults (who will
most likely transfer out of their natal group upon reaching sexual
maturity), juveniles and infants.
Female gorillas mature sexually and about nine years.
Gorillas do not have a distinct breeding season; females cycle about
every 28 days (comparable to a human female). Gestation is about
eight-and-half to nine months. Newborn infants weigh1.8 to 2.2 kolos
(four to five pounds) and are totally depended on their mother.
Infants are weaned at about three-and-a-half years
of age and females, who mature at six to nine years typically give
birth at four- to -five year intervals.
Male gorillas mature at 10 to 12 years, but because
of competition for mates, few will start to breed before 15 years.
|