Tasmania's ancient rainforest and alpine flora species face an uncertain future, scientists have warned, after out-of-control bushfires consumed vast tracts of wild bushland.

As authorities downgraded emergency warnings Friday, with wetter weather -- and even some snow -- bringing respite from more than a month of rolling fires, scientists warned they are still assessing the damage to the island's unique environment.

Wildfires have scorched over 205,000 hectares (500,000 acres) in the southwest, centre and northwest of the island -- fuelled, scientists believe, by climate change.

Most of the native eucalypt forests have adapted to frequent burning, but Tasmania is a refuge for ancient species, whose presence dates back millions of years to when Australia was part of a supercontinent called Gondwana.

Located in the Tasmanian Wilderness World Heritage Area, these species are more accustomed to ice ages than bushfires, and include the slow-growing Pencil Pine, King Billy Pine and Cushion Plant.

They require a "cool, very permanently wet and fire-proof" environment, David Bowman, Professor of Environmental Change Biology at the University of Tasmania, told AFP, after a trip to inspect the burnt wilderness.

"It's like a bonsai garden gone berserk" he said describing the species. "Some of the trunks of these pencil pines are 1,000 years old, but they're clonal, so they have been there for 10,000 years."

"They're resilient to ice ages but when you warm the climate they are completely toast."

While scientists remain hopeful that rainforests were wet enough to repel the worst fire damage, climate models show a trend towards greater drying of western Tasmania and an increase in the dry lightning thunderstorms responsible for sparking the recent blaze.

Nick Earl, Climate Research Fellow at the University of Tasmania, and his colleagues warned in a recent paper that climate change may permanently alter the viability of these ecosystems.

"Some regions of the west coast of Tasmania used to have very little to no risk of bushfires as they were always damp. However, this is no longer the case, resulting in species coming under threat," they wrote.

"Endemic species like Pencil Pine, Huon Pine and Deciduous Beech may be wiped out by one fire."

This risk has prompted calls for more resources to be made available for remote area firefighting to safeguard irreplaceable ecosystems.

"Pencil pines are really the plant equivalent of the Tasmanian Tiger or the Tasmanian devil," Bowman said.

"They're serious business for us culturally."

Related Links
Forest and Wild Fires - News, Science and Technology

Tweet

Thanks for being here; We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain. With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords. Our news coverage takes time and effort to publish 365 days a year. If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor $5 Billed Once credit card or paypal		SpaceDaily Monthly Supporter $5 Billed Monthly paypal only

Greece too reliant on fire planes: experts
Athens (AFP) Feb 7, 2019
Greece is "excessively" dependent on aerial fire-fighting and suffers from poor coordination, experts said on Thursday in a study of the country's worst fire tragedy that claimed 100 lives in July. The committee of forestry and safety engineering experts from some of Greece's leading universities was ordered formed by Prime Minister Alexis Tsipras after the July 23 wildfire in the coastal resort of Mati. Their report on Thursday said there was a "lack of cooperation" between agencies, "especiall ... read more