Gorilla Journal 13, December 1996
Should We Consider the Translocation of
Gorilla Populations?
Considering the popularity of gorilla tourism, translocation should have
been given serious thought long ago. By allowing tourists access only
to captive-born animals reintroduced to natural habitats, any ill-effects
tourism may have on the highly endangered gorilla populations can be avoided.
As it is, it may be necessary to use translocation to save natural populations
that have been jeopardized because of tourism.
Growth of human populations surrounding parks and overtaxing the natural
buffer zones protecting endemic fauna and flora, increased water use (bathing
drinking and voiding) within and around the park, and increased exposure
of gorillas to humans from all over the world are all products of tourism
which can have serious health consequences. The case of Gombe stream reserve
where chimpanzees are now crippled by polio (a water born disease) and
suffer yearly bouts of fatal epidemics illustrates the magnitude of this
threat quite well.
Unfortunately, at the moment if we needed to translocate gorillas we have
little of the information necessary to insure long term success. We need
to know more about the qualities of the gorilla's environment and of the
plants and animals that maintain it. Gorillas may not presently be using
all of the environments that may be suitable to them. We must do research
that allows us to predict based on what the animal's needs are, what environments
will support them. In this regard, we must also further research differences
between gorilla populations, and their corresponding needs.
What we know of the social system of eastern gorillas suggest that it
may be best to move them into uninhabited areas as a group together with
a single young solitary male. Into areas already populated by gorillas,
it would be best to introduce young adult females. There are a number
of drugs, with antidotes administered through a dart gun which can subdue
animals for transport. These are relatively safe, if the animal's body-functions
are monitored.
Unfortunately, the money, and subsequent political bureaucracy that gorilla
conservation attracts worldwide seriously challenges coordination and
effective decision making on the part of "true experts". Presently
such coordination may be the greatest obstacle when survival of some gorilla
groups may ultimately depend on translocation.
Esteban Sarmiento
Dr. Esteban Sarmiento is a functional anatomist
in the American Museum of Natural History. His primary research interest
involves the skeletons of hominoids. He has taught in the USA, South Africa
and Uganda.
Juichi Yamagiwa
David Chivers
John E. Cooper
Kelly Stewart and Sandy Harcourt
Translocation
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