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East Australian Rain-forests: A Case-study in Resource Harvesting and Conservation
Published online by Cambridge University Press: 24 August 2009
Extract
Human interactions with rain-forest on the Australian continent have played, and will continue to play, a vital role in their distribution and survival. The presence and significance of rain-forest in Australia lies in the evolutionary history of the Australian plate since the break-up of the Gondwanan supercontinent. Its continued survival and distribution illustrates and encapsulates the history of plant evolution and biogeography in Australia.
Since human arrival in Australia at least 40,000 years ago, human interactions with rain-forest have been marked by a number of phases — ranging from Aboriginal use of rain-forest resources to the impetus given by the hunt for the prized Red Cedar, and from the early European settlement on the east coast of Australia in the midto late-19th century to the wholesale clearing of rain forests for agricultural settlement and dairying in the late 19th century. In more modern times, human interactions with rain-forest have focused on adapting forest management techniques to rain-forest logging, restructuring the native forest timber industry in the face of mechanization, changing markets and resource constraints, convulsions as a result of conservationist challenges in Terania Creek and Daintree, and finally the implications of conserving rain-forests in the context of natural processes including fire, climate change, and the impact of human visitors and their recreation.
The course of the controversies over rain-forest conservation in Australia has meant that rain-forest logging either has been dramatically curtailed or is in the process of generally ceasing. The protection of rainforests from logging and forestry operations in the future seems secure, given the widespread community support for rain-forest conservation. Threats to rain-forest conservation in the future are likely to be found in more subtle processes: the impact of fire regimes on the spread and contractions of rain-forests, the impacts of exotic species such as Lantana (Lantana camara) and Camphor Laurel (Cinnamomum camphora), the impacts of human uses through tourism and recreation, the diminution of the viability of isolated pockets by ‘edge effects’, and the damage to the remaining stands on freehold property by conflicting land-uses.
Overlying all of these potential threats is the impact of global climate change. Climate change since the Tertiary has reduced the once widespread rain-forest communities of Australia practically to the status of relicts in refugia. Will the remaining rain-forests be able to withstand the projected human-induced climate changes of the future?
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