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Completed MSc and
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The status,
distribution and
feeding ecology of
elephants in Bwindi
Impenetrable
National Park,
south-western
Uganda. MSc thesis
Dennis Babaasa
(1994) |
The
ecological importance of the African elephant (Loxodonta africana)
in both savannah and forest ecosystems supports its designation as a
“keystone species”. The wide spread decline of Africa’s elephant
populations and the destruction of suitable habitat has led to several
studies aimed at finding suitable management options for saving
Africa’s largest terrestrial animal. In Uganda despite some studies of
savannah elephants, little is known about the elephants in forests such
as Bwindi.
This study
aimed to estimate the number of elephants in Bwindi and to describe their
movements, distribution and feeding habits. This information will
clarify the influence the animals have on the forest and indicate
whether the population is recovering from past declines. The study also
aimed at generating baseline data for more detailed ecological studies
that would help in the conservation of Bwindi elephants. The methods
used included following fresh elephant trails (0-5 days old), signs of
elephant feeding were determined directly by sight i.e. plants broken
and leaves stripped from branches by elephants. Spoor data was used in
differentiating between individual elephants and assessing age of the
animals.
Approximately 22 elephants were estimated to be in Bwindi a decline from
the previous estimates. The majority were younger than 15 years. This
may reflect recovery following heavy poaching in the 1970s.
Elephant
locations and trails were entered on a map to determine their
distribution and seasonal movements. Elephants only occurred in an area
of 186 square kilometers in the southern sector of Bwindi. The Bamboo
zone was the most preferred habitat during the wet season likely due to
shoots of the young bamboo (Arundinaria alpina) which are
consumed in large numbers. Chrysophyllum dominant mixed forest
around Mubwindi swamp was the most frequented habitat during dry
periods. The overall impact of the elephants on the forest seems to be
small because of their low numbers and there is little habitat
modification as compared to other places.
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