Tuesday 2nd of September 2014

when species are left to rot in a basket case...

ethical duty9

The dramatic ongoing loss of Australian animal and plant species has prompted influential scientists to call on governments to start making tough decisions about which ones to save - and which species should be left to face extinction. 

The proposal to triage Australia's unique species comes from some of the nation's most senior conservation biologists.

It is a radical and controversial shift from decades of hard fought conservation victories aiming to preserve all species and wilderness.

"I'm afraid to tell everybody we're in a terminal situation. We're confronting a whole raft of species about to go over the extinction cliff," said David Bowman, a Professor of environmental change biology at the University of Tasmania.

Professor Corey Bradshaw, director of The Environment Institute's Climate and Ecology Centre at The University of Adelaide, says Kakadu National Park has suffered a 95 per cent decline in mammals.

"Kakadu National Park, our largest national park, is basically a biodiversity basket case," Professor Bradshaw said.

http://www.abc.net.au/news/2014-03-19/australian-species-facing-extinction/5331908

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This is the debate we do not have to have... In the seventies, not long after I came to these warming shores, I was arguing with heads of Museums about the importance of "sub-species" and that of other species that were not "beautiful, sexy, cuddly or in abundance"... In those days during which we had to fight the "creationists" as well,  the "scientists" were facing the same problem of species "triage" due to scientific fund shortage... Nothing new.

The only species we REALLY need to get rid off are the Politicus animalus and the Triagius professorii — all those politicians and stupid scientists who think they have the right to decide on others species' adventure on earth. This of course only happens because human enterprises encroaches more and more on the necessary habitats of other species. Thus in the stupid wisdom, the right wing thinkers think we have to make a choice on which species to to shoot or boot out forever off this planet because of ... COSTS...  Money! Mula! Dosh! Well let's kill off this entity and replace it with ethical understanding of nature and our humanistic stylistic duty to make sure we don't walk on nature's "vulnerables" because our clown shoes are too big. 


Professor Corey Bradshaw should resign from any scientific work and become a real estate agent.


Gus Leonisky

Nature lover

 

the scissors effect in extinction...

...

But are such observations really an indication that mass extinctions are pending? "The critical value has not been reached yet," says ecologist Niklaus Zimmermann of the Swiss Federal Institute for Forest, Snow and Landscape Research. It will only become a problem when weather extremes occur more frequently. "Two hot summers in Europe in a row, such as the one in 2003, would probably have very serious effects," Zimmermann explains.

The warming could bring lasting changes to habitats, adds biologist Kinzelbach. Nevertheless, he warns of over-dramatizing the situation. "Changes in nature are something quite normal," he says. "The desire for stability originates in human fears."

Uncritically blaming climate change for species extinction is dangerous, Kinzelbach adds. Such an approach could transform climate change into a cheap excuse for failing to address pressing problems. "Monocultures, over-fertilization and soil destruction wipe out more species than a temperature rise of a few degrees Celsius," he says.

http://www.spiegel.de/international/world/new-un-climate-report-casts-doubt-on-earlier-extinction-predictions-a-960569.html

 

As my spell-check kindly reminds me of the spelling of scissorS, most extinction do happen because of several factors, one of which presently is and will be global warming. The extinction of the "mega-fauna" was mostly due from the "ascent of humans" and to a variety of other factors including "fast" warming. Some species may not be affected by global warming but some others are and will be such as corals. There, the destruction of the coral life is coming from several sources which are difficult to separate.

Forty years ago, the great barrier reef was more or less "integral". Since then, the barrier ref has seen a decline in its scope that some scientists have calculated at about 60 per cent loss and still going down hill fast. Most corals do not survive in waters above a certain temperature.

The double factors of global warming and acidification of the ocean is directly derived from human extra CO2 emissions. Added to such stress, there is ship water-ballast, effluents and herbicides/pesticides/fertilisers run-offs and dredging dumping clouds of dirt.

Dumping of mud is rarely clean. From my witnessing of dredging in Europe, a lot of the dumped "dirt" ends up as a cloud of muddied water — often destroying the "life' below such as shellfish and fish — not landing as a single plop at the bottom of the ocean. It is also very hard to know how much devastating infestation of crown of thorn starfish are due to some or all of these factors as mentioned above.

Global warming plays a part in extinction of species. It's just we're unable to quantify with exact figures the evidence because stress often needs scissors to be deadly. So as usual, since not a "single" source of destruction can be blamed for extinction, none or few are acted upon efficiently. We fiddle-faddle.

For example, our chemical warfare on the planet should cease immediately. But we're inventing more deadly chemicals.

Presently the up and coming extinction of the elephants in the wild is also staring us the face as poachers and land usage are both stressing the remaining herds. Our lack of understanding of the social interactivity in these animals also has led to a great part in their demise. We need to do more to protect them from ourselves... Eventually, elephants in zoos will also die out because of lack of social interaction.

With our silly deluded government, making fake noises about climate change action and now in a "renaissance mode" to mow down protected forests, what chance has the world got? Tony Abbott is an iddiott...

Read all articles please: 'Coral cover on the Great Barrier Reef is half of what it was 27 years ago.'

 

Gus Leonisky

your local amateur earth scientist