'Ecology on steroids': how Australia's First Nations managed Australia's ecosystems
Retrieved on:
Saturday, December 30, 2023
First Nations people please be advised this article speaks of racially discriminating moments in history, including the distress and death of First Nations people.
Key Points:
- First Nations people please be advised this article speaks of racially discriminating moments in history, including the distress and death of First Nations people.
- On October 9 1873, George Augustus Frederick Dalrymple reclined in a boat on the glorious North Johnstone River in the coastal Wet Tropics.
- Dappled paths led to managed patches of open forest, groves of fruit trees, bananas and yams.
- First Nations groups such as Australia’s rainforest people had skilfully managed entire ecosystems over the long term, in what has been termed “ecology on steroids”.
Decoupling landscape from climate change
- The Pleistocene climate was cool and windy, with mega monsoons and long periods of diabolical drought.
- Here, in a magnificent cave system in Arnhem Land, people prepared a meal of native fruits and processed pandanus using an adaptable toolkit.
- This meal took place 65,000 years ago, when savannah stretched all the way to the island of New Guinea.
- The land was not a mindless resource but part of your family – and came with family obligations.
- Everyone, whether you were human, an animal, a plant, a river, fire, the sky or wind, was closely watched.
- The lagoon filled up, nestled in a landscape of moisture-loving shrubs and brushed by relatively cool fires.
- But then, the climate lurched to one of the long periods of horrendous drought instigated by an El Nino weather system.
- Through patch burning, they created a rich landscape of diverse habitat that sustained people and created niches for a wide range of species.
Extinction busters
- From before the last ice age, the ancestors of today’s Martu people would have witnessed great floods rushing down the Sturt Creek into an extensive lake system, Paruku (Lake Gregory).
- These lakes were ten times larger than today’s system, ringed by dunes covered in scrubby vegetation and flammable spinifex.
- Without cultural burning, it took mere years for fuel to build up and large wildfires to incinerate the landscape.
- Over the two decades of Martu absence, ten species of small mammal became locally extinct, including the rufous hare-wallaby, burrowing bettong, bilby, mulgara and brushtail possum.
- What’s more, 14 mammals, three birds and two reptiles became threatened.
- We will need to relearn these ancient techniques of managing country on a broader scale to cope with the changes to come.
- Penny has recently published a book, Cloud Land, with Allen & Unwin based on the Thiaki restoration project.
- Barry Hunter is a Djabugay man and chair of Terrain NRM, a natural resources management group.