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ECOLOGICAL IMPACTS
OF SAMBAR DEER ON RAINFOREST VEGETATION COMMUNITIES – Rohan Bilney (Guest
Speaker at AGM Sunday 2nd December 2007)
As a joint author
of the only paper published on the ecological impacts of Sambar deer,
(Observations of the Ecological Impacts of Sambar in East Gippsland, Victoria
with reference to destruction of rainforest communities, Peel,B., Bilney, R.J.,
and Bilney, R.J. (2005)), Rohan was well placed to present this most interesting
and relevant discussion.
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Some of the
factual data presented included;
·
sambar was introduced to
Australia from S E
Asia in the 1860’s,
·
first reported in Wonnangatta in 1951,
·
distribution is mainly east of
Melbourne in
forested areas,
·
population estimated to be at least 40,000 to 70,000 in
Victoria,
·
listed as ‘Protected Wildlife’ under state legislation,
Rohan indicated
that despite being particularly wide spread, the ecological impacts of Sambar
deer have been poorly studied although they are known to cause damage in other
countries (eg New Zealand, Sri Lanka, India.) |
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Impacts identified
in East Gippsland
include;
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·
browsing and antler rubbing,
·
alteration of forest structure and complexity,
·
creation of paths,
·
increased erosion,
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destruction of regeneration works,
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provision of food source for wild dogs,
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agricultural damage, such as spreading weeds and destroying
crops |
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Numerous
photos of the significant damage caused by deer were presented,
demonstrating the extent of the impacts on rainforest and other native plant
species. In respect of rainforest communities, Rohan indicated that such
communities provided a suitable living environment for deer, with shelter,
protection and palatable species readily available. It was noted that
significant damage had already occurred in many significant and sensitive
rainforest locations.
In
recognition of the impacts and as a means of developing management and
control programs, sambar deer have now been recognised as a ‘Potentially
Threatening Process to Biodiversity’ under the Flora & Fauna Guarantee Act
1988. This means that an ‘Action Statement’ will be prepared with input from
various interest groups and experts. |
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It is hoped that
this process will result in the development and implementation of appropriate
management programs aimed at mitigating the ecological impacts of Sambar deer.
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