The Serengeti National Park, in northern Tanzania,
is an amazing natural resource that is, not surprisingly, a UNESCO World
Heritage Site.
The Park occupies nearly 15,000 square
kilometres that comprise treeless savannah plains and the magnificent Ngorongoro
Crater (which has a diameter of 27 kilometres). At the eastern edge of the
Serengeti is the Olduvai Gorge where Louis and Mary Leakey made some important
discoveries of early hominid remains in the 1950s and 1960s. The name Serengeti
means “wide land” in the Masai language.
The stars of the show in the Serengeti are
the animals. The population includes a million wildebeest, 150,000 Thompson’s
gazelles, 1,000 elephants, 7,000 giraffes and 3,000 lions, as well as 500
different bird species.
The days of big game hunting are
fortunately long gone in the Serengeti, although there have been problems
associated with illegal poaching of elephants and rhinos. Instead, safari tourism
is now a vital source of revenue for Tanzania. The Serengeti has also been a
happy hunting ground for makers of wildlife documentaries who have been able to
bring to TV screens all over the world their vivid portrayals of African big
cats hunting their prey, jackals and vultures performing their clean-up
operations, and the lifecycles of elephants, hippos and many other species.
Much has been learned over the years about
the behaviour of species because it has been possible to study them in an
environment that is both natural and protected. It is now on record, for
example, that hippos spend much of the day in water to protect their skins from
the hot sun, but emerge at night to feed and may travel as much as ten
kilometres to find suitable grazing.
Similarly, the movements of elephants have
been studied closely as they migrate in family groups in search of food and
water. Given that a fully grown elephant needs to eat around half a ton of
vegetation every day, they can cover enormous distances in their travels,
especially during the dry season.
As mentioned above, the Serengeti has not
been without its problems. Economic crises during the 1970s, coupled with an
increasing demand (especially in Asia) for elephant ivory and rhino horn, led
to poaching on an almost industrial scale. It was estimated that at one time
there were only 100 elephants left in the whole of the Serengeti, and only two
rhinoceroses. Fortunately, the situation has improved since then and the
populations of these two iconic species have recovered. That said, the problem
has not disappeared and park rangers still need to maintain constant vigilance.
It is to be hoped that this wildlife
paradise will continue for the foreseeable future to offer sanctuary to its
many animal and bird species, some of which have been driven to extinction
elsewhere.
© John Welford
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