‘It is not easy’: how science and courage saved the stunning Australian Alps



National Library of Australia

Philip Gibbons, Australian National University

Most people probably associate the Australian Alps with skiing and snow. Others might think of the Man from Snowy River legend or the engineering feats of the Snowy Hydro-Electric Scheme.

But few people know the region’s history of exploitation and overuse, nor the courage of those who fought to save this precious wilderness area. A new book, Kosciuszko: A Great National Park, tells that important story. The result, by authors Deirdre Slattery and Graeme L. Worboys, is a positive yet cautionary tale.

Today, the park is largely protected – yet threats such as ski tourism, feral horses and the Snowy 2.0 scheme still loom. And climate change has left the region highly vulnerable, as shown by declining snow depths and a massive bushfire that tore through the Snowy Mountains last summer.

The book shows how Kosciuszko National Park is the product of robust science and hard-fought battles by dedicated individuals – battles that continue to this day.

A ranger-guided tour leaving for the Kosciuszko summit in 1964.
A ranger-guided tour leaving for the Kosciuszko summit in 1964.
Gare collection in Kosciuszko: A Great National Park

A long history of occupation

The Australian Alps in southeast New South Wales is the traditional home of three Aboriginal groups: the Ngarigo, Walgalu and Djilamatang people. It is home to Australia’s highest peak, Mount Kosciuszko.

The book describes how squatters with cattle occupied the region from the 1820s. By 1840, the Snowy region had been stocked with 200,000 sheep, 75,000 cattle and 3,000 horses which grazed in the mountains each summer.




Read more:
We need our Alps, so why aren’t we looking after them?


The discovery of gold in 1860 brought another 10,000 people to the Snowy Mountains. By the turn of the 20th century, the mountains were also a playground for recreation. Hotel Kosciusko, with 93 bedrooms, a ballroom, museum, skating rink and tennis courts, catered for an upmarket clientele.

In 1949 the mountains became the site for the Snowy Mountains Hydro-Electric Scheme: 16 dams, 80 kilometres of aqueducts and more than 140 kilometres of tunnels.

By then, the signs of overuse were evident. Soils were eroding, streams became silted and unique alpine flora was diminishing.

Cattle grazing at Club Lake believed to be during the Federation Drought (1897-1903).
Cattle grazing at Club Lake believed to be during the Federation Drought (1897-1903).
Kerry Studio/Costin collection in Kosciuszko: A Great National Park.

The long conservation fight

Tannat William Edgeworth David, a professor at the University of Sydney, was one of the first to document the unique values of the Snowy Mountains and call for their protection.

In the 1800s, the notion that an ice age once gripped Australia was considered preposterous. The book tells how David and colleagues put the matter “absolutely beyond dispute” when they mapped, on Kosciuszko’s main range, the undeniable signature left by glaciers.

In the early 1900s, David urged that the alpine area be preserved:

[I]t would be wise policy, in the interest of people and of science, to reserve from occupation and even from the depasturing of stock, all the highest points of our alpine plateau, so that this floral wonderland may be preserved intact for posterity…

It took almost 50 years before this advice was heeded. Kosciuszko State Park — later Kosciuszko National Park – was proclaimed in 1944. A decade of further scientific research led to the end of summer grazing leases above 1,350 metres in 1958.

One of the first park managers was Neville Gare. As the book notes, Gare quickly learned that feelings over management of the mountains ran deep. Soon after rangers started impounding stock found illegally in the park, an effigy of a park ranger swinging from a hangman’s noose was installed on the veranda of the Jindabyne Hotel.




Read more:
Fire almost wiped out rare species in the Australian Alps. Feral horses are finishing the job


In 1950, Gare resisted a plan by head of the Ski Tourers Association, Charles Anton, to build a network of ski lodges. The book recounts how the tensions culminated at a public function when Anton snipped Gare’s tie in half to “indicate his indifference to Gare’s authority”. Some lodges were later built.

In his unpublished memoir, Gare wrote “it is not easy to conserve something and use it too”. In future years, this observation would prove all too true.

Stock illegally moved into the park after grazing leases ended in 1958.
Stock illegally moved into the park after grazing leases ended in 1958.
Alec Costin in Kosciuszko: A Great National Park

Ongoing battles

Gare and the Kosciusko State Park Trust developed the first formal plan of management for the park in 1965. The park was divided into zones for different uses: wilderness, conservation of exceptional natural and historic features, development, hydro-electricity and tourism.

This zoning was radical thinking at the time but has since been widely adopted in park management across Australia.

The plan of management for Kosciuszko National Park has been frequently amended to accommodate more tourism facilities, and the threat of further development is ever-present. As the authors note, further pressure is also coming via Snowy 2.0, a A$5 billion proposal to expand the current hydroelectric scheme.

Climate change is also a threat. Rising temperatures have triggered a 15% decline in the annual maximum snow depth, relative to the 1961-90 average.

Skiers at Perisher Valley
Climate change is reducing the snow depth in the region.
Perisher/AAP

Climate change is also making the threat of bushfires worse. In January, the massive Adaminaby Complex fire burned through more than 93,000 hectares in the Snowy region, affecting swathes of bush. It also devastated populations of several threatened species, including the corroboree frog and the stocky galaxias fish.

And the lethal chytrid fungus, introduced to Australia, has pushed the park’s southern corroboree frog to the brink of extinction.




Read more:
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In 2018, the NSW government declared feral horses in the park a protected species. The population has quickly grown to about 19,000, representing a considerable threat to several species.

The book reminds us that today, as throughout history, Kosciuszko National Park needs protecting. And key to that are courageous, committed individuals – and robust science.The Conversation

A scenic view of the Snowy Mountains
The Snowy Mountains are protected, but threats remain.
Schopier/Wikimedia

Philip Gibbons, Professor, Australian National University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Double trouble: this plucky little fish survived Black Summer, but there’s worse to come



Tarmo A. Raadik

Mark Lintermans, University of Canberra

This article is part of Flora, Fauna, Fire, a special project by The Conversation that tracks the recovery of Australia’s native plants and animals after last summer’s bushfire tragedy. Explore the project here and read more articles here.


On a coastal holiday last summer, I was preoccupied. Bushfires were tearing through southeast Australia, and one in particular had me worried. Online maps showed it moving towards the last remaining population of a plucky little fish, the stocky galaxias.

I’ve worked in threatened fish conservation and management for more than 35 years, but this species is special to me.

The stocky galaxias was formally described as a new species in 2014. Its only known population lives in a short stretch of stream in Kosciuszko National Park in New South Wales. A single event could wipe them out.

On January 2 the bushfires forced my family and I to evacuate our holiday home. As we returned to Canberra, I was still worried. Fire maps showed the stocky’s stream virtually surrounded by fire.

A few days later, I prepared for an emergency rescue.

Fire tore through south east Australia in January, threatening the stocky galaxias.
Victorian government

In critical danger

The stocky galaxias is the monarch of its small stream; the only fish species present. I’ve been trying to protect the stocky galaxias before it was even formally recognised.

Over the last century or more, the species has seen off threats from predatory trout, storms, droughts and bushfires. Snowy 2.0 is the latest danger.

It’s listed as critically endangered in NSW and is being assessed for a federal threatened listing. Before the fires, there were probably no more than 1,000-2,000 adults left in the wild.




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As the fires burned, I knew we had to move quickly. I wanted to collect up to 200 stocky galaxias and take them away for safekeeping.

Rainfall after bushfires is major threat to fish, because it washes ash and sediment into streams. Storms were forecast for the afternoon of January 15. So early that morning, myself and two colleagues, escorted by two staff from the NSW National Parks and Wildlife Service, drove to the stocky galaxias stream.

A colleague and I waded in and began electrofishing. This involved passing an electrical current through water, stunning fish momentarily so we could catch them.

The author and his colleagues used electrofishing to catch the fish.
Mark Lintermans

After 45 minutes we’d collected 68 healthy stocky galaxias. Woohoo! Further downstream we collected 74 more. By now, fire burned along the stream edge. We packed the fish into drums in the back of my car and drove out.

We headed to the NSW Department of Primary Industries’ trout hatchery at Jindabyne, where we measured each fish and took a genetic sample. I felt immensely relieved and satisfied that we’d potentially saved a species from extinction.

The fish have been thriving in the hatchery building. Stocky galaxias have never been kept in captivity before, but our years of field work told us the temperatures they encountered in the wild, so holding tanks could be set up appropriately.




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Back to the stream

The captive fish can be used for breeding, but the species has never been captive-bred before and this is not a trivial task.

When they’re reintroduced to the wild, the sites must be free of trout, and other invasive fish like climbing galaxias. Natural or artificial barriers should be in place to prevent invasive fish invasion.

In late March I finally got back to the stocky galaxias’ stream to see whether they’d survived. At the lower stretch of its habitat, the fire was not severe and the stream habitat looked good, with only a small amount of ash and sediment.

Upstream, the fire had been more severe. At the edge of the stream, heath was razed and patches of sphagnum moss were burnt. Again, sediment in the stream was not too abundant. But fish numbers were lower than normal, suggesting some there had not survived.

Stocky Galaxias live in a short stretch of a single stream.
Credit to come

The fight’s not over

The stocky galaxias species might have survived yet another peril, but the battle isn’t over.

Feral horse numbers in Kosciuszko National Park have increased dramatically in the last decade. They’ve degraded the banks of the stocky galaxias’ stream, making it wider and shallower and filling sections with fine sediment. This smothers the fish’s food resources, spawning sites and eggs.

Before the fires, plans were already afoot to fence off much of the stocky galaxias habitat to keep horses out. Fire damage to the park has delayed construction until early 2021.




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Snowy 2.0 threatens to pollute our rivers and wipe out native fish


The biggest long-term threat to the species is the Snowy 2.0 pumped hydro development. It threatens to transfer an invasive native fish, the climbing galaxias, to within reach of stocky galaxias habitat. There, it would compete for food with, and prey on, stocky galaxias – probably pushing it into extinction.

Despite this risk, in May this year the NSW government approved the Snowy 2.0 expansion, with approval conditions that I believe fail to adequately protect the stocky galaxias population. The project has also received federal approval.

Future in the balance

The stocky galaxias is unique and irreplaceable. I want my grandchildren to be able to show their grandchildren this little Aussie battler thriving in the wild.

The damage wrought by Snowy 2.0 may not be apparent for several decades. By then many politicians and bureaucrats now deciding the future of the stocky galaxias will be gone, as will I.

But 2020 will go down in history as the year the species was saved from fire, then condemned to possible extinction.

The Conversation

Mark Lintermans, Associate professor, University of Canberra

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Our field cameras melted in the bushfires. When we opened them, the results were startling



Taronga Zoo

Benjamin Scheele, Australian National University; David Newell, Southern Cross University; Jodi Rowley, Australian Museum, and Michael McFadden, University of Wollongong

This article is a preview of Flora, Fauna, Fire, a multimedia project launching on Monday July 13. The project tracks the recovery of Australia’s native plants and animals after last summer’s bushfire tragedy. Sign up to The Conversation’s newsletter for updates.


In late summer, male northern corroboree frogs call for a female mate. It’s a good time to survey their numbers: simply call out “Hey, frog!” in a low, deep voice and the males call back.

This year, the survey was vital. Bushfires had torn through the habitat of the critically endangered species. We urgently needed to know how many survived.

In late February we trekked into Kosciuszko National Park, through a landscape left charred by the ferocious Dunns Road fire.

We surveyed the scene, calling out: “Hey, frog!”. At ponds not severely burnt, reasonable numbers of northern corroboree frogs responded. At badly burnt sites where frogs had been found for 20 years, we were met with silence. The adults there had likely died.

After completing our surveys we collected melted cameras we’d deployed eight months earlier to monitor water levels in the ponds. Some weeks later, these would reveal just what the frogs had endured.

Northern corroboree frog on burnt moss after the fires.
Ben Scheele

A tiny frog with a big problem

Northern corroboree frogs are tiny – no longer than three centimetres long – and feature distinctive yellow and black stripes. They are listed as critically endangered, but are more abundant than their close relative, the southern corroboree frog.

They’re found only in the high country of southern New South Wales and the ACT. Before last summer’s bushfires, just a few thousand northern corroboree frogs were thought to remain in the wild. Our preliminary post-fire assessment indicates a substantial number might have died where fires were severe.

Caught on camera

Of the frogs’ two key habitat areas in NSW, one was burnt by the fires and one was left untouched. Over the border in the ACT, the fire damage was relatively slight, but the worst came later.

Heavy rain after the fires filled ponds with ash and sediment.
Ben Scheele

After the fires, heavy rain in denuded burnt catchments produced water runoff laden with sediment. Some frog breeding habitat was eroded and filled with silt and ash. Once-mossy ponds were now gravel and ash.

In March 2019, we’d set up cameras to take one photograph a day, to monitor water levels in ponds. The fires melted the cameras, and some were also waterlogged. One of the authors, Ben Scheele, took them home and left them in his garage, assuming the footage was lost.

But several weeks later, bored during the COVID-19 lockdowns, he chiselled open the warped casing and removed the memory cards. Amazingly, most still worked.

They contained a fascinating series of photos. Some revealed how a number of ponds largely escaped the fires, only to be destroyed afterwards by flooding.

The series below shows a pond in Kosciuszko National Park. Watch the transition from autumn to deep winter snow, then to dry earth before the fire and its smoky aftermath (when the camera had fallen to the ground):

A frog emergency

Australia is home to around 240 frog species, most found nowhere else in the world.

The expert panel advising the federal government on bushfire recovery has identified 16 frog species likely to be severely affected by last summer’s fires.

All but one was listed as threatened by the IUCN prior to the fires. Importantly, the panel noted not much is known about how Australian frogs respond to fire.

Many Australian frog species have adapted to survive fire. But last summer, fires tore through areas where such events are extremely rare.




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This includes World Heritage rainforests in northern NSW, home to the mountain frog, found nowhere else on Earth. How these frogs will respond to the fires remains to be seen.

For species associated with streams, such as the Barred River frogs, the impacts of fire may not be immediately apparent. Males typically stay near streams and may have escaped the flames, but females spend much time away from streams and may have died. These frogs are long-lived, so it may be many years before population declines are detected.

A stuttering frog after a fire in Gibraltar Range National Park last summer.
Jodi Rowley

A shared fate

The effects of last summer’s fires on frogs are likely to be felt for years to come. For example, regrowing forests use lots of water, which will affect species in forested areas such as the northern corroboree frogs. This compounds a trend towards less rainfall under climate change, which is already driving their decline.

Annual northern corroboree frog monitoring conducted under the NSW government’s Saving Our Species program has been in place since 1998. This, coupled with the fact about half the known sites were fire-affected, puts us in a good position to better understand the species’ responses to fire by comparing burnt and unburnt sites in coming years.




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The NSW government’s Saving Our Species program, and Taronga Conservation Society Australia, have started work on a captive “assurance” population for the species. The project, supported by Commonwealth funding, involves collecting eggs from the wild to safeguard the species’ unique genetic diversity.

Ongoing monitoring of other frog species is also critical. Importantly, anyone can get involved in helping understand frog responses to fire through the FrogID app.

Habitat degradation, climate change and disease threaten frogs globally. In this, they have much in common with humans. Last summer’s severe fires were a direct result of climate change. And of course, COVID-19 has killed more than 500,000 people in recent months.

Perhaps humanity should reflect on the fate we share with wildlife, and act.

David Hunter of the NSW Department of Planning, Industry and Environment contributed to this article.The Conversation

Benjamin Scheele, Research Fellow in Ecology, Australian National University; David Newell, Senior Lecturer, School of Environment, Science & Engineering, Southern Cross University; Jodi Rowley, Curator, Amphibian & Reptile Conservation Biology, Australian Museum, and Michael McFadden, PhD Candidate, University of Wollongong

This article is republished from The Conversation under a Creative Commons license. Read the original article.

NSW election: where do the parties stand on brumby culling?



File 20190321 93063 1k3xosw.jpg?ixlib=rb 1.1
Feral horses have severely damaged the landscape in Kosciuszko National Park.
Travelstine, CC BY-SA

Don Driscoll, Deakin University

The future management of New South Wales’s national parks is one of the issues on the line in Saturday’s state election. Other states will be watching the outcome closely.

Depending on who wins, the outcome for Kosciuszko National Park spans from restoration and recovery to ongoing environmental decay, with feral horses given priority over native species.




Read more:
Low-key NSW election likely to reveal a city-country divide


All political parties have been well informed about the science behind feral horses in the Australian Alps. The peer-reviewed literature shows that:

  • feral horse impacts put multiple species at greater risk of extinction

  • streams and bogs are degraded, threatening water quality, and will require restoration

  • even small numbers of horses lead to cumulative environmental degradation

  • a range of high and low elevation areas are severely degraded by feral horses; it is not clear whether any areas can withstand horse impacts

  • rehoming and fertility control are not effective control methods when horses number in the thousands and are hard to reach

  • aerial culling is humane, effective, and cheaper than other methods.

But despite the clarity of recommendations emerging from research, political parties have taken a broad range of approaches.

A feral horse exclusion fence. But which side of the fence are the major parties on?
Author provided

Liberal/National Coalition

The Liberal/National coalition has pledged to enact its Kosciuszko Wild Horse Heritage Bill, which was passed by the state parliament last year and aims to “recognise the heritage value of sustainable wild horse populations within parts of Kosciuszko National Park”.

This legislation would ensure several thousand feral horses remain in the park, potentially compromising the conservation goals of the park’s management plan.




Read more:
Passing the brumby bill is a backward step for environmental protection in Australia


This month, Deputy Premier John Barilaro said the government would “immediately” reduce horse numbers by 50%, through trapping, rehoming, fertility control, and relocating horses to “less sensitive” areas. Although he appeared to endorse an ultimate population target of 600 feral horses in front of an audience that was receptive to that idea, under pressure from the pro-brumby lobby, he later clarified that the coalition would aim to keep 3,000-4,000 feral horses in Kosciuszko.

Labor

Labor, along with the Greens and the Shooters, Fishers and Farmers party, has pledged to repeal the Kosciuszko Wild Horse Heritage Bill if it wins the election, and has committed A$24 million to restore the national park.

Its six-point national parks restoration plan bans aerial culling, instead proposing to control horses using rehoming, while expanding research on fertility control.

Labor’s plan also mentions active management of feral horses in sensitive ecosystems, and ensuring large horse populations do not starve to death. It plans to achieve these two goals by trapping and rehoming brumbies. Labor also plans to keep a “smaller population” of feral horses in areas within the national park “where degradation is less critical”.

Greens

The NSW Greens has arguably the most evidence-based policy, aiming to reduce horse numbers by 90% in three years, with a longer-term goal of full eradication.

This means national parks would be managed for native Australian species. That is important in NSW, where only 10% of the state has been allocated to protected areas, well below international standards of 17%. They would achieve this reduction using all humane methods currently available, including trapping, rehoming, mustering, and ground-based and aerial shooting.

The Greens would also fund rehabilitation of damaged habitat, and has flagged substantial funding for conservation initiatives.

Shooters, Fishers and Farmers

The Shooters, Fishers and Farmers party supports immediate action to reduce feral horse numbers using humane methods, including ground shooting, but not aerial culling.

The party, which holds one lower house seat and has two upper house members, has announced no plans for restoration of the national park.

Animal Justice Party

The Animal Justice Party, which has just one upper house member in the parliament, has endorsed “non-lethal control measures” in areas that are clearly being degraded by feral horses. It says this should be achieved entirely using fertility control and relocation. The party has also described brumby culling proposals as “horrific” and called for urgent national legislation to protect them.




Read more:
Why do brumbies evoke such passion? It’s all down to the high country’s cultural myth-makers


There is pressure from pro-brumby lobbyists to keep feral horse populations in Guy Fawkes, Barrington Tops, Oxley Wild Rivers, the Blue Mountains, and other NSW national parks. In Victoria, a pro-brumby pressure group will take Parks Victoria to the Federal court later this year to prevent removal of a small but damaging horse population on the Bogong High Plains in the Alpine National Park.

When NSW voters decide the fate of Kosciuszko National Park on Saturday, their verdict could have broader ramifications for protected areas throughout Australia.The Conversation

Don Driscoll, Professor in Terrestrial Ecology, Deakin University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Media Release: Corroboree Frogs


The link below is to a media release concerning the Corroboree Frogs of Kosciuszko National Park in New South Wales, Australia.

For more visit:
http://www.environment.nsw.gov.au/media/OEHMedia14043001.htm

Australia: New South Wales – Kosciuszko National Park


The link below is to a media release concerning the Easter Long Weekend in Kosciusko National Park. There a some real twits out there.

For more, visit:
http://www.environment.nsw.gov.au/media/DecMedia12041202.htm