Mountain Gorillas
Mountain Gorilla Conservation
Gorillas on the Rebound
Continuing Threats
How tourism is helping to protect the Mountain
Gorillas?
Dr Dian Fossey
Mountain Gorillas
(The Mountain Gorilla Conservation Fund)
All of the Mountain Gorillas in the world live in the mountains
of Africa. Specifically in Rwanda, the Democratic Republic of
Congo, and Uganda.
Gorillas are the largest living primates on Earth. There are
three kinds of gorillas: 1) Eastern Lowland Gorillas, which
reside in the Democratic Republic of the Congo; 2) Western Lowland
Gorillas which live only in West Africa and: 3) Mountain Gorillas,
which are only found in Uganda, Rwanda and the Democratic Republic
of the Congo.
Gorillas are listed as one of the top 10 most endangered species
on Earth. There are approximately 355 gorillas in the Volcano
and Virunga Mountains of Rwanda and Congo and another separate
group of 300 in Uganda's Impenetrable Forest. There are
no Mountain Gorillas living outside of their native mountain
forest home. Gorillas are protected by international law. Capturing
or killing gorillas and other endangered species is illegal.
There are no Mountain Gorillas living in captivity and very
few Eastern Lowland Gorillas. The gorillas seen in captivity
are usually Western lowland gorillas.
Although Mountain Gorillas have been living in the mountains
of Africa for a very long time they have only recently been
scientifically identified. Captain Robert von Beringe officially
identified them in 1902 and as a result the scientific name
for the Mountain Gorilla is Gorilla Gorilla Beringei. Andreas
von Beringe, grandson, recently visited Mountain Gorillas for
the first time in 2002.
There are no territorial boundaries of families but the family's
range from 2 to 15 square miles. When a silverback leaves a
group he usually spends 3 years waiting for a female to be attracted
to him from another group. Females transfer at least once before
mating at 8 years of age.
The females decide who they are going to allow into their family.
If a gorilla wants to join another group and the females do
not want her in, they will scratch her in the face and keep
her out. If a female wants to leave a group to find a male she
likes better, but the other females like her very much, they
will grab her by the legs and not allow her to leave.
When an adult female is sexually mature she will leave the group
to mate with a silverback outside of her group. She chooses
who she will mate with, but the females of the group decide
if they will allow her into the group. As the head female grooms
the dominant silverback, you can see that this is teaching the
other gorillas by showing them. The length of time spent grooming
a silverback is accomplished by the females in descending order
of when they entered the group.
Female gorillas will wean their young at about 3 years of age
and can be bred between 6 1/2 and 9 years of age. Gestation
lasts 8 to 9 months. Infants stay within 6 feet of their mothers
until 6 months of age. From their birth, infants must use their
hands and arms to hang on to the underside of their mother.
Their shorter legs and stumpy toes are used only around their
mother's stomach. After 4 months of age they begin to
ride on their mother's back.
Female gorillas weigh approximately 350 pounds and adult male
gorillas can weigh approximately 700 pounds. Adult gorillas
can be seven feet tall with an arm span of 8 feet.
They eat 58 different types of plant species, including stems,
roots, leaves, flowers, thistles, ferns, tree wood and bamboo
shoots. Galium vines are favorites as well as berries, fruit
and celery. They occasionally will climb trees.
Gorillas have much larger teeth in the back of their mouth than
humans do so that they can grind foliage, bark and bamboo.
Gorillas are only active part of the day and build nests in
different locations each evening. The nests are built of bulky
vegetation mostly Lobelia and Senecio branches. Nests can be
built on the ground as well as the trees. They start building
nests at age three after sharing their mother's nest.
Gorilla groups spend about 40 percent resting, 30 percent eating,
and 30 percent traveling.
Gorillas are frequently found eating in unprotected garbage
pits, which contain a variety of trash including human toilet
waste. This exposes the gorillas to infection and disease that
is a major risk to this highly endangered species.The Mountain
Gorilla Conservation Fund has been working to construct covered
garbage pits.These pits are designed to keep the gorillas from
getting to the trash.
A major problem that the veterinarians have had is removing
the gorillas from snares that have been set by people. These
snares are set to catch animals for humans to eat, but gorillas
also get caught in these snares. A hole is dug in the ground
and then some branches are put over the top of a rope or wire
snare.The animal dies unless he can have the snare removed and
wound treated. A wire snare can ruin a gorilla's eating
ability by cutting off its fingers.
Gorillas exhibit behaviors similar to humans. They are curious,
they can be bored, they can be bold, they can be annoyed, they
can have pleasure, they can be excited, they can be afraid,
they can worry, they can show affection, they can be thoughtful
or they can be hostile. Gorillas like to study people to see
if they are friendly.
Communication between gorillas is accomplished by stomach rumbling
which means they are contented, a pig grunt of harsh staccato
grunts used when disciplining or complaining. A roar or scream
is given when a gorilla is threatened. A loud hoot or roar is
given when silverbacks are interacting. This is done by chest
beating and thrashing of trees. When gorillas are afraid they
send out a powerful odor from their glands. Interactions between
social units by silverbacks accounts for over 60 percent of
all wounds on gorillas. Gorillas can recover amazingly well.
They live in cohesive social units known as groups. Typical
groups consist of 1 dominant silverback, which is a sexually
mature male that is 15 years old, that is the group's
definite leader and weighs at least 400 pounds or twice the
size of a female. A least one blackback, which is a sexually
mature male between 8 - 14 years and remains with the group
if he does not challenge the dominant silverback. If he does
not dominate, blackbacks will leave the group to establish their
own group. There are several sexually mature females over 8
years old who are usually bonded to the dominant silverback
for life; several immature young adults and juveniles over 3
years; and several infants from birth to 3 years. An adult male
is called a silverback. He gets his silver fur when he is between
10-13 years old.
Group size can number over 40 individuals. The long period of
association with the parents, elders and siblings offer the
gorilla a unique and serene family bonding. Some gorillas have
been identified to live over 40 years.
The Mountain Gorilla Conservation Fund is proud to work with
these amazing animals.
Mountain Gorilla
Conservation
(American Wildlife Foundation (AWF))
Reason to Hope
The Virunga Heartland features the last remaining habitat of
one of the world's rarest primates, the mountain gorilla
(Gorilla beringei beringei). This charismatic animal is the
flagship species for the conservation of the entire array of
wildlife and habitat that make up this unique part of the planet.
AWF has been working to protect mountain gorillas for several
decades, funding important research and working to ensure the
survival of the mountain gorilla since the late 1970s. This
important work has continued in spite of extraordinary circumstances.
The human suffering during the Rwandan civil war of the 1990s
was incalculable, but without the intervention and continued
support of AWF and its partners, the victims of war might also
have included the mountain gorilla. Thanks to the bravery and
dedication of park rangers - some 70 of whom lost their lives
- the Virunga mountain gorillas survived the war and the more
recent conflicts in the DRC.
Gorillas on the Rebound
In fact, the population of mountain gorillas has grown in the
past decade. The first census of the Virunga population in 15
years showed an increase of 17 percent in the gorilla population
in the Virungas. Together with the 320 living in the Bwindi
Impenetrable National Park in Uganda, the total number of mountain
gorillas is now approximately 700. In 2004, the unprecedented
birth and survival of gorilla twins provides all involved in
gorilla conservation with a renewed sense of hope.
Continuing
Threats
Despite reasons for optimism, death and extinction are constant
threats for the mountain gorilla. Historically, mountain gorillas
have been threatened by poaching, loss of habitat from population
pressures, civil unrest and spread of disease. And as human
populations get closer to gorilla habitats, the gorillas are
at greater risk of contracting human diseases, from flu-like
problems and pneumonia to ebola.
Fortunately, conservation efforts initiated by the International
Gorilla Conservation Program (IGCP), a coalition of the African
Wildlife Foundation, Fauna and Flora International and World
Wide Fund for Nature, have helped to ensure that the gorilla
population will endure. Through a variety of methods, including
transboundary collaboration, ranger-based monitoring, community
development, anti-poaching activities and habitat conservation,
IGCP and its conservation partners are helping the mountain
gorillas to make a comeback.
The IGCP, in collaboration with AWF, works with local people
to benefit both the gorillas and the community. One program
teaches hygiene and sanitation to improve health while another
works with the locals to develop new business opportunities.
One of these initiatives is the community gift shop in Rwanda,
which sells locally made handicrafts and food items. As much
as 80 percent of the profits will go to fund other community
projects while the remaining 20 percent will be reinvested in
the shop. AWF is also working with the local people and the
private sector to design and construct a community-owned tourist
lodge that will substantially benefit the local people who share
their backyards with gorillas and other wildlife.
Funding research to protect these magnificent animals and conserve
their homeland is vital. Despite the good news of a growing
population, mountain gorillas are still critically endangered.
We must not be complacent. The slow rate of reproduction among
mountain gorillas makes the challenge of keeping the population
stable a difficult one. With continued international cooperation
and funding, AWF and its partners will continue to protect this
fragile species.
How tourism is helping
to protect the Mountain Gorillas?
There are strong arguments for and against tourists visiting
Gorilla families. Namely as Gorillas are very close genetically
to humans they are susceptible to human diseases but do not
have the resistance like we do. Hence there are certain rules
and regulations which must be followed by tourist groups when
visiting the Gorilla families - these are Internationally recognised
guidelines which are adhered to in DR Congo, Rwanda and Ugandan
Wildlife Authorities and rangers. These guidelines aim to minimise
the actual and potential impact on gorilla families.
However, tourism helps raise international awareness of the
need to protect mountain gorillas by taking issues out of the
"conservation and academic worlds" and into a wider
public awareness schema. A percentage of the money spent trekking
the mountain gorillas is spent on conservation efforts to protect
their existence. Further, Rwanda, Uganda and DR Congo benefit
as a result of tourism - most people visiting these countries
do not just come to see the mountain gorillas but spend time
in other parts of the country - this creates an industry
of its own, supporting local economies and increasing employment
opportunities for local people.
Areas that your money goes toward include;
- Active Conservation: includes frequent patrols
in wildlife areas to destroy poacher equipment and weapons,
firm and prompt law enforcement, census counts in regions of
breeding and ranging concentration, and strong safeguards for
the limited habitat the animals occupy
- Theoretical conservation seeks to encourage growth
in tourism by improving existing roads that circle the mountain,
by renovating the park headquarters and tourists' lodging,
and by the habituation of gorillas near the park boundaries
for tourists to visit and photograph
- Community based conservation supports African
ownership, provides education on the personal as well as environmental
benefits of preserving protected areas, and encourages local
people to take pride in and assume some of the responsibility
for the protection of their parks
Dr. Dian Fossey (1932-1985)
Dian Fossey Gorilla Fund (DFGF)
Dr Dian Fossey was murdered by an unknown attacker in her cabin
at the Karisoke Research Center in the Virunga Mountains in
1985. The attacker hacked her to death by what investigators
believe to be a machete. They entered through a hole in the
wall prior to the attack. No arrests have ever been made, but
local authorities believe it to be poachers who were at odds
with Dian and her anti-poaching brigade of but a few soldiers.
She died after 22 years of dedication to protecting the critically
endangered Mountain Gorillas.
Dian Fossey arrived in Africa in 1963 and after her first encounter
with the mountain gorillas and her meeting with Dr Louis Leakey
she was determined to dedicate her life to working with mountain
gorillas. After a brief visit back to the US she moved to Congo
and then Rwanda in 1966 to embark on her life studies.
In 1967 she established the Karioke Research Centre in Rwanda.
The centre was between two volcanic mountain ranges, Mt Karisimbi
and Mt Visoke on the border to DR Congo. She later housed her
anti-poaching patrols there as headquarters to stop the slaying
of gorillas. The research center also brought in other scientists
to study different aspects of the gorillas biology.
Her pioneering work with the gorillas has forever changed the
ways animals are studied in the wild. Her observations of gorillas
behavior, dispelled myths about the mountain gorillas violence.
She sat unharmed, within a few feet of them almost everyday
for 22 years.
She also noted many vocalistics and behavior patterns within
their each family of gorillas she had observed. Dian became
very involved with one particular gorilla, Digit, who was later
beheaded by poachers.
Dian set up the Digit Fund (now the DFGF) to attract international
support for gorilla conservation. In 1974 she received a Ph.
D. in zoology.
Dian's biggest challenge was stopping the active poaching
of mountain gorillas. The poachers would kill mountain gorillas
and cut off their heads, hands and feet in order to sell.
She also was threatened to be kicked out by the government because
she suspected involvement with the poachers and Rwandan government.
She continuously had to legalize her paper and work permits
to further her work.
Dian Fossey's murder remains a mystery. Although she may have
died protecting the critically endangered mountain gorillas
her work still continues through several agencies and funds
established in her honor. Several books have been written about
her life and research. The film "Gorillas in the Mist" played
an integral part in highlighting public awareness about the
mountain gorillas.
In
a 40-50 year lifetime, a female mountain gorilla might
have only 2-6 surviving offspring. This slow reproduction
makes this species even more threatened. Click
here to learn more about efforts to saving the critically
endangered Mountain Gorillas. |
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