a couple of updates (from last year - I just happened to come across them while looking for something else; I can't find anything more recent to see any results). The second article has a cool photo of one of the long-beaked echidnas at Taronga.
Cookies must be enabled. | The Australian
Scientists begin hunt for giant echidna in West Kimberley after research suggests it may not be extinct
Cookies must be enabled. | The Australian
16 June 2014
A CHANCE rediscovery in London’s Natural History Museum has reversed thinking that the world’s largest egg-laying mammal, the Western long-beaked echidna, is extinct and led scientists to question whether it may be alive in Western Australia.
The skin and skull of an echid*na that lived in northwestern Australia was found by Smithsonian Natural History Museum curat*or Kristofer Helgen, who is normally based in Washington but was visiting London, among drawers of untagged specimens.
Dr Helgen’s rediscovery has sparked an Australian hunt for the monotreme, via collection and analysis of echidna droppings and DNA-matching from skins, to see if it survives in more remote parts of the Kimberley.
Until now, fossil evidence of the 10kg mammal, which grows to one metre long, was from Australia’s megafauna period, at least 10,000 years ago. Aboriginal rock art paintings of the animal, in Arnhem Land, are estimated to be 5000 years old.
But living-memory accounts from indigenous women in the region point to a larger echidna being hunted alongside the common short-beaked mammal two generations ago.
The London skull was initially thought to have been sourced from the highlands of western New Guinea, where the species is critically endangered.
South Australian Museum and University of Adelaide School of Earth and Environmental Sciences professor Stephen Donnellan said $50,000 in funding had been secured last month to analyse DNA captured from the skins of Kimberley and New Guinea specimens to determine their genetic relationship.
Australian Wildlife Conservancy scientists and West Australian Environment Department rangers were collecting the highly distinctive echidna scats from the West Kimberley region.
“If we don’t find (long-beaked echidna DNA) in the scats we collect, we still can’t say it’s not there,’’ he said. “However, if we do confirm its presence, then it becomes an important addition to our monotreme fauna.
“The DNA sequences of short- and long-beaked echidnas are like chalk and cheese. There’s at least 15 to 20 million years’ divergence.’’
Scientists begin hunt for giant echidna in West Kimberley after research suggests it may not be extinct
16 June 2014
GIANT echidnas weighing 10kg and growing to a metre long could be roaming a remote area of Western Australia, scientists believe.
The western long-beaked echidna was thought to have been extinct in Australia for thousands of years.
But now researchers are on the hunt for the animal in the West Kimberley after Dr Kristofer Helgen discovered a specimen in the collections of the Natural History Museum in London and realised it was taken from the wild in Australia in 1901 — long after it was believed to have died out.
The finding has been supported by an account from a 90-year-old Aboriginal woman who in 2001 told one of Dr Helgen’s team how she had hunted the larger echidnas.
The researchers said they were “sufficiently convinced by the tags and information” on the London specimen “to regard it as evidence for the survival of the long-beaked echidna in the Kimberley region into the early twentieth century”.
And they added: “We hold out a small optimism that long-beaked echidnas might yet dig burrows and hunt invertebrates in at least one hidden corner of Australia’s north-west.”
Now staff from Australian Wildlife Conservancy and the West Australian Environment Department are collecting and testing echidna scat from West Kimberley to try to find DNA evidence of the animal, The Australian reports.
South Australian Museum and University of Adelaide School of Earth and Environmental Sciences professor Stephen Donnellan told the paper: “If we don’t find (long-beaked echidna DNA) in the scats we collect, we still can’t say it’s not there.”
The only place the western long-beaked echidna is known to exist is in New Guinea, where the small population is listed as critically endangered.
Further research will compare the DNA from the Australian remains and the New Guinea creatures to establish their genetic relationship.