1. The African Elephant-
the Real King of the Jungle
The African elephant is one of the most fascinating
and complex animals. The largest of all land mammals, it is
intelligent, emotional, and sensitive. After humans, elephants
have the largest social network amongst land
mammals. They display advanced social behaviour - such as
celebrating birth and mourning the dead. In the days of mourning,
they protect the body of the dead and pile grass and tree
branches. Just like man, the natural life of an elephant stretches
to about 70 years but some live as long as 80 years.
The elephant's most distinguishing features
include its nose, which is prolonged as a trunk. At its tip,
the trunk has two finger-like projections that it uses to
handle small objects. It also has two upper incisor
teeth that protrude outside the mouth forming its characteristic
tusks. Tusks in males have an average length of 355 cm and
weight of 61 kg. The height and body weight may vary geographically
and individually
but fully mature bulls average a height of about 3m and weigh
5,000 kg while cows average 2.5 m and 3,000 kg.
The colour also varies geographically and
ranges between grey and brown. The elephant is really thick-skinned-
the highly wrinkled skin can be up to 3 cm thick. The ears
-which have the shape of the African
continent - can reach a length of 2m and width of 1.5m. The
elephant is unique in having internal testes, unlike most
other mammals. In females, the two mammary glands hang between
the forelegs, unlike most mammals that have them between the
hind legs.
Among herbivores, the elephants diet is perhaps
the least specialised. Daily fare is vegetarian and ranges
from roots, grasses, leaves, fruit, twigs, seedpods, and tree
bark. The milling action of the two pairs of
huge long, rasp-like molars, and the incredible versatile
trunk, means that the elephant can feed from ground level
up to 6m and eat virtually anything green. The elephant's
molars slide forward and backward rather
than side-to-side, unlike other herbivores.
Thanks to the marvellous dexterity of the
trunk, elephants can pick up nuts, strip off leaves and bark,
break off branches, and uproot shrubs and small trees. Some
bulls master the technique of pushing over mature
trees; this trait makes them very significant habitat modifiers,
wherever they range in Africa.
An elephant consumes about 4% to 6% of its
body weight daily. The average bull therefore munches about
300 kg while a cow takes 170 kg of food per day. Considering
that this is such a huge animal, this is actually modest.
The reason as physiologists will tell you is that compared
to smaller mammals, elephants lose a lot less heat due to
lower surface area to body ratio. The elephant's fibrous dung
shows that digestion is very incomplete- only about 44% of
food is assimilated
compared to 66% for common ruminants.
The elephant's dung is substantial and among
the Maasai peoples of East Africa, it is used to make fire.
Scientists use the same stuff to estimate elephant densities
and distribution, in a method referred to as dung decay method.
The technique is very useful in dense habitats like forests
where sighting of actual elephants may be difficult. Knowing
the rate of decay of elephant dung in all sorts of climatic
conditions, researchers can compute an indirect index of elephant
density from field encounters of dung heaps.
Elephants are organised in matriarchal social
systems anchored on an older female. Males usually live in
separate herds or alone, their rank being determined by seniority
and reproductive condition. Young males are ejected from the
herd as they reach sexual maturity, usually around 14 years
of age. They then suffer the burdens of a celibate life, as
females will not give them the time of day for another 15
or so years.
The basic social unit is a group of related
females consisting of a mother with her mature daughters and
their offspring. Herds range in size from 2 to 24 with members
keeping close together; individuals rarely venture beyond
50 m from the herd. The matriarch sets the tone- in activity,
direction, and rate of movement.
The matriarch typically leads from the front,
while another big female trails at the rear. Sudden loss of
matriarch, say, by shooting, completely disrupts and disorients
the herd. In a remarkable show of loyalty, the herd mills
around and would rather be shot than abandon the matriarch.
At the same time, cows attempt to lift her off her feet and
if she can walk they support her, one on each side. This behaviour
illustrates a highly developed sense of charity and altruism.
Elephant stressed by range compression and
hunting pressure tend to aggregate in large groups, often
composed of reunited clans. In such challenging situations,
temporary groupings of up to 200 elephants,
bulls inclusive, can gather. The animals feed and move along
in an apparently coordinated manner, with the movements of
one group having a contagious effect upon others. Aggregations
are formed mainly during the rains and are associated with
peak mating activity. When elephant movements are unrestricted,
such large herds gather only for migration.
Bulls of advanced age are the most sedentary
of all elephants. They hang around swamps where they can find
the soft vegetation still forgiving of their worn out teeth.
Elephants spend 16 hours daily feeding, with peak activity
in the morning and afternoon, and around midnight. They sleep,
sometimes lying down - for 4-5 hours daily. They can go for
several days without drinking, during which they range for
up to 80 km away from water.
But they drink and bath daily by choice, with
bathing coming after drinking. A mature bull may drink 100
litres at a time and up to 227 litres a day. A need for extra
sodium in the diet is met by visiting mineral licks - where
elephant excavate pits and even caves with their tusks- or
by drinking saline water.
Elephants very much love contact, as is typical
of social animals and primates. Family members stand touching
while resting or drinking. And they lean and rub their bodies
together, often touching one another
with their trunks in various contexts. In a greeting ceremony,
a lower ranking animals insert its trunks tip into a senior's
mouth. This practice enhances social harmony as it enables
elephant of different rank and
relationship to come close together amicably.
Mothers often guide calves by gripping their
tails, and older calves follow holding the mother's tail.
A touch, an embrace, or a rub with a foot reassures, while
a slap disciplines a calf. In courtship, elephants may
caress each other and twine their trunks; playing at fighting
elephant trunk- wrestle. The trunk as an olfactory organ is
used for tracking and for males to check female's readiness
to mate. The temporal gland
near the eyes is active in all African elephants when exited
or anxious, staining the cheeks below the orifice of the gland.
Trumpeting is the sound of excitement, produced
by blowing through the nostrils hard enough to make the trunk
resonate, while holding it straight down or curved slightly
backward. The sound can be modulated,
from a short blast given by a startled animal, to a prolonged
reverberating cry of frustration and rage. Then, it is combined
with growling and screaming in threat displays. Trumpeting
can also signal alarm or a cry for help; it is also voiced
during the intense greeting ceremonies.
Females first conceive at age 10-11 years.
Thereafter, the interval between calves ranges from 4 to 9
years, depending on nutrition and population density. Gestation
is close to 22 months and twins are very rare. Mating and
births are most frequent during the rains.
The bond between a mother and her offspring
is very close and can endure for 50 years. Mothers water and
wash calves by gently squirting water over them and then scrubbing
with their trunk. In times of drought a mother will regurgitate
water from her stomach and spray it to cool her calf. Even
at nine years, a calf may spend over a half the time less
than 5m from its mother. A calf may be weaned as early as
1-2 years, but
often nurses for 4 or more years. Related cows suckle one
another's calves and some cows may continue lactating through
their childbearing years.
Elephants were once common throughout Africa,
even in northern Africa when the Romans reigned. Today, they
are mainly found in Eastern and Southern Africa, where water
and trees occur. But their range and number have shrunk with
increasing human population, development,
and poaching. As recently as the early 1980's, an estimated
1.3 million elephants survived.
But greatly accelerated poaching had already
begun, fuelled by a rise in the price of ivory and political
and civil instability in various parts of Africa. This brought
about easy access to firearms and poachers went
unpunished. By the end of the decade, elephant population
over much of eastern Africa had declined by up to 80%, both
outside and inside the parks.
The rapid catastrophic decline in numbers
means that the survival of the African elephant is less than
assured. The main pressure emanates from first, competition
for habitat with humans and second, the ivory trade. Richard
Leakey, one time head of Kenya Wildlife Service has recently
promoted the view that drying up of habitats caused by global
warming will be the ultimate challenge.
Conservationists shocked at the fate of the
deceptively indestructible elephant in eastern and central
Africa have advocated for the complete ban of the ivory trade.
In 1989, the Convention on International Trade in
Endangered Species (CITES) listened to them and imposed a
moratorium in international trade in ivory. This led to such
serious erosion in demand that poaching declined and numbers
set on recovery.
Obtaining of a permanent ban in ivory trade
is not easy. In Southern Africa good wildlife management practices
has led to an excess of elephants, relative to habitat carrying
capacity. These nations have untiringly lobbied for a lifting
of the ban. In 1996, CITES invoked a restricted lifting of
the ban for Zimbabwe, Botswana and Namibia with unhappy results.
Poaching resumed in Kenya, Zambia, Ghana and other African
countries. The problem is that it is not easy to tell apart
legal and illegal ivory.
Trade in ivory encourages poaching in vulnerable
countries. In the short to medium term, it appears that a
moratorium in ivory trade holds the key in protecting the
elephant. The bloody ivory trade, though more
limited than earlier, continues and a 2005 report funded by
Care for the Wild International and Save the Elephants, found
that London among other major cities, is one of the worlds
principal markets.
Excess elephant numbers puts great pressure
on the human communities living close by. They destroy food
crops, trees and sometimes even injure and kill people. The
argument for limiting elephant numbers in some
locations is difficult to challenge. In addition to periodic
culling, this can be achieved by non-lethal methods such as
translocation, expanding parks and contraception.
In August 2005, an exercise got underway to
relocate elephants so as to enhance biodiversity and save
a unique coastal forest in the Shimba Hills National Reserve
of Kenya. Here, the population had shot above the estimated
capacity of 200 to about 600. This undertaking by the wildlife
authorities in Kenya will be the largest elephant translocation
the world has ever seen. The plan is to move out 400 elephants
from Shimba Hills to Tsavo East National Park.
At the same time the concerns of local farmers,
who have increasingly complained that the elephants are not
good neighbours as they destroy crops will be addressed. This
unprecedented operation is so huge that some have called it
"Noah's Ark Two". It is the only option in Kenya,
where it is illegal to hunt or cull wildlife. The mechanics
involved are straightforward- the animals are first tranquillised
and then loaded into special trucks. But considering the massive
size of the animals and the numbers involved, the logistics
are far from straightforward.
Elephants have more profound impact on the
environment than any mammal, besides man. The beneficial effects
include opening up thick forests for regeneration through
a process ecologists refer to as gap ecology. In this dynamic,
they bring in more light and enable some light dependent plants
to sprout and flourish while bringing food within reach of
smaller browsers.
However, the negative effects of destroying
trees-, which has been spectacular in many African parks -
sometimes, overtake these benefits. In Murchison Falls (Uganda)
and Tsavo (Kenya), for instance, woodland was transformed
in to grassland, to the great detriment of elephants themselves
and many other wildlife species, particularly the black rhino.
Strategies for saving the elephant can only
be devised with mans acquiesce to share the living space and
a very clear understanding of the life of the elephant- habitats,
ranging patterns, food needs, birth and death patterns and
social life. Fortunately, the African elephant has come under
very close study in recent years. In Kenya's Amboseli National
Park, Cynthia Moss has since 1972 undertaken the longest running
African elephant field research project.The Amboseli Elephant
Research Project (AERP) http://www.elephanttrust.org/
Shas collected copious amounts of data on
the world of free-ranging African elephants. One Amboseli
matriarch -Echo, is the star of the film trilogy "Echo
of the Elephants". Cynthia Moss and her research collaborators
have singled out more than 1,400 elephants, many of
which they call by name. For her labours, she is recognised
as the worlds' leading authority on the African elephant.
Time magazine has featured her in their "Heroes for the
Planet" series.
Elephants can be dangerous and travellers
are warned to avoid close contact except under very safe circumstances.
While incidences are very rare, elephants have been known
to shatter vehicles and even
aircrafts into pieces. Such aggression is mostly confined
to females with young calves, but injured bulls are also very
dangerous and have been seen blocking roads and easily attack
if provoked.
Its is always advisable to let elephants -
much like other animals - have the right of way while on a
game drive. Ironically, very small animals like birds and
mongoose reportedly scare this giant. Folk wisdom has it that
they are so fearful of chameleons that on seeing one, the
mighty elephant, usually so tranquil and dignified will make
a hasty run for dear life!
For travellers and animal lovers, elephants
are among the most treasured species of Africa's wildlife.
There are a good number of elephant hot spots throughout Eastern
and Southern Africa. In Eastern Africa, you
will find plenty of them at Amboseli and Maasai Mara in Kenya,
and Tarangire and Ruaha in Tanzania. In Southern Africa, you
are best advised to head for Kafue in Zambia, Mana Pools and
Hwange in Zimbabwe; Chobe and Moremi in Botswana; Kruger in
South Africa and Etosha in Namibia. You
can get close to the African elephant by taking an African
Wildlife Safari.
In eastern or southern
Africa. On such a safari, you will of course also see the
other wildlife Africa is famed for. You will see that on the
basis of character, strength and intelligence, the elephant
stands head
and shoulder above so many other animals. You may even come
to share my opinion that the elephant is the real king of
the jungle, and not that overrated pretender - the lion.
NOTE:
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