[Home]   [Full version]  

Aussie northern savanna 'largest, most intact on Earth

Aug 14 ,Space & Earth science


A new book on Northern Australia by four of the country’s leading scientists reveals the region has the largest and least damaged tropical savanna in the world, and calls for a new approach to development and conservation to ensure it remains one of the last great natural places.

The Nature of Northern Australiais the result of almost three years of exhaustive research. Authors Dr John Woinarski, Professor Brendan Mackey, Professor Henry Nix and Dr Barry Traill detail ‘how the country works’, and provide a roadmap for planning future economic growth and conservation of the North’s irreplaceable ecological systems.

The study used latest satellite imagery to identify that the more than 1.5 million square kilometre area of Northern Australia – stretching from Cape York Peninsula and Gulf Country in Far North Queensland, across the Northern Territory Top End to the Kimberley in North West Western Australia – is one of the last remaining great natural areas on Earth alongside the Amazon rainforests and polar wilderness of Antarctica.

“Only an hour west of Cairns a great ‘sea’ of savanna stretches across the top of Australia west to the Indian Ocean. In other parts of the world, tropical savanna is in decline due to land clearing, unsustainable grazing regimes and over population, but this vast area of Northern Australia is remarkably intact,” co-author Professor Brendan Mackey from The Australian National University said.

The North is a place where natural ecological processes continue to function well, maintaining a healthy landscape, Professor Mackey said. “This healthy landscape is necessary to sustain people and industries in Northern Australia. Elsewhere in the tropics and the rest of Australia, we have impaired the health and functioning of our lands and waters.”

The Nature of Northern Australia calls for investments in the management of the North; using the emerging carbon economy associated with extensive natural vegetation to provide investment and employment; and recognising management skills of all land managers, including Indigenous Australians.

Source: ASU

Related stories:

Measures to help species cope with climate change?
Many species must move to new areas to survive climate change. Often, this seems impossible. Species stranded on mountain tops in southern Europe that are becoming too hot for them, for instance, are unlikely to be able to reach northern Europe unaided. So should WE step in to help?
Penguins setting off sirens over health of world's oceans
Like the proverbial canary in the coal mine, penguins are sounding the alarm for potentially catastrophic changes in the world's oceans, and the culprit isn't only climate change, says a University of Washington conservation biologist.
Woolly-Mammoth Gene Study Changes Extinction Theory
A large genetic study of the extinct woolly mammoth has revealed that the species was not one large homogenous group, as scientists previously had assumed, and that it did not have much genetic diversity.
Unravelling the mystery of the kitty litter parasite in marine mammals
Researchers at California Polytechnic State University have discovered what may be a clue to the mystery of why marine mammals around the world are succumbing to a parasite that is typically only associated with cats. The key may just be the lowly anchovy, according to research presented today at the 108th General Meeting of the American Society for Microbiology in Boston.
Shorebird numbers crash: survey alarm
One of the world's great wildlife spectacles is under way across Australia: as many as two million migratory shorebirds of 36 species are gathering around Broome before an amazing 10,000-kilometre annual flight to their northern hemisphere breeding grounds.
Making (accurate predictions of) waves
A new review of tsunami hazards concludes that the 2004 catastrophe was far from the worst possible in many Indian Ocean borderlands -- and notes that warning systems to guard at-risk populations are still lagging.
Red sky at night -- astronomers delight
A collaboration of over 50 astronomers, The IPHAS consortium, led from the UK, with partners in Europe, USA, Australia, has released today the first comprehensive optical digital survey of our own Milky Way. Conducted by looking at light emitted by hydrogen ions, using the Isaac Newton Telescope on La Palma, the survey contains stunning red images of nebulae and stars. The data is described in a paper submitted to the Monthly Notices of the Royal Astronomical Society.
Economists: Reduce fish catch now for bigger net profits later
A new and compelling argument for reducing fish harvests – the profit motive – could persuade world fishers to endure the short-term pain of lower catches for the long-term gain of higher returns for their labor, according to authors of a ground-breaking study on fisheries over-exploitation.

News discussion:

Space & Earth science news

[Home]   [Full version]