Professor Corey Bradshaw explains the unfolding “Extinction Cascades” on Nature Bats Last.

Professor Corey Bradshaw from Flinders University was this months guest on Nature Bats Last.

The audio of the episode is embedded here:

“Dr. Bradshaw is the Matthew Flinders Fellow in Global Ecology at Flinders University, where he directs the Global Ecology Laboratory and is also Chief Investigator of the ARC Centre of Excellence for Australian Biodiversity and Heritage. He heads the Flinders Modelling Node of the latter organization. Professor Bradshaw has published some 300 peer-reviewed scientific articles, 11 book chapters and 3 books. His book titles include The Effective Scientist, published by Cambridge University Press and, from Chicago University Press and co-authored by occasional guest on this show Professor Paul Ehrlich, Killing the Koala and Poisoning the Prairie. In total, his work has been cited more than 20,000 times. Bradshaw is co-Head of the Ecology Section of the Faculty of 1000 and a Fellow of the Royal Society of South Australia. He was awarded the 2017 Verco Medal from the Royal Society of South Australia, a 2017 Rockefeller Foundation ‘Bellagio’ Writer’s Fellowship, the 2010 Australian Ecology Research Award from the Ecological Society of Australia, the 2010 Scopus Young Researcher of the Year, the 2009 HG Andrewartha Medal, and a 2008 Young Tall Poppy Science Award. He is regularly featured in Australian and international media for his research. The Professor’s blog has been visited more than 2.3 million times.” Quoting  Professor Guy McPherson

Links to Professor Bradshaw’s published works are embedded here, his personal blog with a subscription option is Conservation Bytes 

“More than 99% of all species that have ever existed have gone extinct”. See the short presentation at the top of the Professor Bradshaw’s blog for more on that diamond of information and lets get over our human hubris and invincibility.
We have previously discussed on the show Professor Bradshaw’s work with Professor Paul Ehlich. That episode is embedded in the following link: Professor Paul Ehrlich returns to Nature Bats Last
Until recently I assumed that at least Tardigrades would get through the extinction bottleneck. That has recently be called into question as we discussed on the show and  below;
“Tardigrades are tough little critters. When conditions get nasty, they can dry out, reconfigure their bodies and enter suspended animation – called dessication – for years. You can throw virtually anything at them: frozen temperatures, zero oxygen, high pressures, the vacuum of space, cosmic radiation, and even being boiled.”

“But new research has shown these tiny organisms may have a weakness – long-term exposure to high temperatures, even in their dessicated state. The longer the temperatures are maintained, the lower the tardigrades’ chances of survival.”
Tardigrades Are Basically Indestructible, But Scientists Just Found Their Weak Point

In the following embedded Flinders University presentation Professor Bradshaw jokes that his colleagues describe him as Dr or Professor Doom. This subtle form of gas lighting has stoked scientific reticence as the extinction event accelerates, discouraging the less courageous scientists from telling you what they really think is unfolding. Professor Guy McPherson and I admire Professor Bradshaw’s courage, professionalism and scientific integrity. BRAVE | There’s No Plan(et) B – What you can do about Earth’s extinction emergency.

Carl Sagan Extinction is the rule.

Professor Bradshaw and I discussed the Great Barrier Reef in Australia. Embedded below is the trailer to a new documentary titled “Murder On The Reef”

All my time at sea over 16 ‘blue water’ passages and hundreds of races taught me the importance of the “Precautionary Principal”. The prudent skipper needs a wide margin of error. Caution and prudence seems to have been cast to the wind as the dominant culture grinds the living planet into dust.
Next months guest will be Jeff Gibbs, director of “Planet of the Humans” recently censored off You Tube for daring to question the renewables sector.

I'm an anti-imperialist, environmental activist and blue ocean sailor, who is passionate about the earth and all it's inhabitants without favour. Brace for imminent impact as we bare witness to the non-linear unraveling of the biosphere and habitability disappearing for most if not all complex life on the only habitable planet we know of. To quote President Niinistö in North Russia: ‘If We Lose the Arctic, We Lose the World’. Folks we have lost the Arctic.

Posted in Abrupt Climate Change, Corey Bradshaw, Extinction Cascades, Extinction Rebellion, Jeff Gibbs, Nature Bats Last, Professor Guy McPherson, Professor Paul Ehrlich, The Great Barrier Reef
43 comments on “Professor Corey Bradshaw explains the unfolding “Extinction Cascades” on Nature Bats Last.
  1. Haiku Blue says:

    All in your tribe to educate are so informative. Much gratitude !

    Sent from Yahoo Mail on Android

    Liked by 1 person

  2. Kevin Hester says:

    “Funding dried up after inconvenient truths”.
    One of the reasons why so few scientists are prepared to tell the truth, the whole truth and nothing but the truth is access to research funding. Recent guests on Nature Bats Last including Professors Paul Ehrlich and Dr Andrew Glikson from the ANU are near the end of their careers and have the courage to call it as my co-host Professor Guy McPherson and Sam Carana from the Arctic News Blog do.
    Another reason is no scientists wants to get tarred with the ‘Doomer’ label as we discussed with our most recent guest on the show Professor Corey Bradshaw.
    Scientific reticence has ensured that the dominant culture has been able to kick the can and the biosphere off the cliff.
    “Schellnhuber said in a recent interview that the IPCC report stating we could stay below 1.5°C of warming was “slightly dishonest” because it relies on immense negative emissions (pulling CO2 out of the air) which was not viable at global scale. He said 1.5°C was no longer achievable but it was still possible to stay under 2°C with massive changes to society.”
    Professor Hans Joachim Schellnhuber in this article is playing ‘fast and loose’ with the actual level of warming we have already experienced. If you go back to 1750 as a baseline we are already past 2C.
    At the edge of extinction only a handful of courageous scientists and researchers like me are willing to tell you the truth.
    I’ll be surprised if this set of living arrangements survives 2 more melt seasons in the Arctic, that equates to about 18 months.

    https://voiceofaction.org/collapse-of-civilisation-is-the-most-likely-outcome-top-climate-scientists/?fbclid=IwAR3pi1FUqdWIJN7EihsRUE1-eu6HDOrSZ113Rr4Pdw4_qT-sZvrZ-2GOT34

    Like

  3. Kevin Hester says:

    Two of the authors of this latest paper Geraldo Ceballos and Paul Ehrlich are former guests on Nature Bats Last.
    I expect the crisis to escalate faster than this paper implies because of the ‘Extinction cascades’ that we discussed with Professor Corey Bradshaw on the show.
    Does anyone else want to write to Geraldo Ceballos and let him know that we are in the 7th great extinction?
    https://www.pnas.org/content/early/2020/05/27/1922686117?fbclid=IwAR0nKRxc3POMfsFdfv9ofwKJk8wRiKTIOdcu_xiKnHTpFwbvDnrmuGjV0b4

    Like

  4. Nikki says:

    From cascade to avalanche

    Liked by 1 person

  5. Kevin Hester says:

    ‘Emergence of cascading dynamics in interacting tipping elements of ecology and climate’
    PDF
    https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.200599

    Like

  6. Kevin Hester says:

    “Humans wiping out wildlife at an ‘unprecedented’ rate, WWF report finds
    Agriculture and the illegal wildlife trade are the main drivers as WWF calls on people to eat less meat.”

    https://www.nbcnews.com/news/world/humans-wiping-out-wildlife-unprecedented-rate-wwf-report-finds-n1239726?fbclid=IwAR0PdtW9WrZNejcGxFHHeNU__x_g9kYgnMiIVbJ67jYPU9dqC-tFmiwppN4

    Like

  7. Kevin Hester says:

    Professor McPherson’s latest peer reviewed paper cites the work of Professor Bradshaw;
    https://guymcpherson.com/2020/12/peer-reviewed-paper-near-term-loss-of-habitat-for-homo-sapiens/

    Like

  8. Kevin Hester says:

    Don’t be surprised if this is part of an extinction cascade. These migratory birds fill an important role in the food chain and seed disbursal.

    https://www.theguardian.com/environment/2020/dec/26/mass-die-off-of-birds-in-south-western-us-caused-by-starvation-aoe?fbclid=IwAR1YeyMzeowaJ9BGcyu3yxojKj-KkcsqgzKneEi1z9KyJ0MiHonVhNIflsI

    Like

  9. Kevin Hester says:

    “From this study, we can conclude that active tardigrades are vulnerable to high temperatures, though it seems that these critters would be able to acclimatise to increasing temperatures in their natural habitat,” Neve said.

    “Desiccated tardigrades are much more resilient and can endure temperatures much higher than those endured by active tardigrades. However, exposure-time is clearly a limiting factor that constrains their tolerance to high temperatures.”

    The research has been published in Scientific Reports.

    https://www.sciencealert.com/tardigrades-are-practically-indestructible-but-climate-change-could-be-their-weak-point?fbclid=IwAR1uBL3WpY8JT3glkNYhFqeOec6KQl0mRYdi3nwjjjgcxcsnNADLIm-U8iM

    Like

  10. Kevin Hester says:

    Less and less I feel like a lone voice crying in the wilderness.
    The unfolding extinction crisis is more obvious by the day.

    https://www.bbc.com/news/science-environment-56160756?fbclid=IwAR1HmL_oY2zfaY_lc4k3ur12p4u2K_otJg21d-6pG3v68OEj7A5UAQCoyKc

    Like

  11. Kevin Hester says:

    Losing this species either entirely or to a large degree will have a negative effect on many of the other species in the marine food web. Their faeces provide fertiliser that is metabolised by species lower down the food chain.
    This is how extinction cascades unfold. Lose one, begin a chain reaction.

    https://blog.therainforestsite.greatergood.com/emperor-penguins/?utm_source=trs-trsfan&utm_medium=social-fb&utm_content=link&utm_campaign=emperor-penguins&utm_term=8818614&fbclid=IwAR0GP3LroJcbUdl_X-EKcDhiJyIOQAuZb62-vRAKqCAeYx6aTVFITVwLop4

    Like

  12. Kevin Hester says:

    “Freshwater fish are under threat, with as many as a third of global populations in danger of extinction, according to an assessment.”

    “Populations of migratory freshwater fish have plummeted by 76% since 1970, and large fish – those weighing more than 30kg – have been all but wiped out in most rivers. The global population of megafish down by 94%, and 16 freshwater fish species were declared extinct last year.”

    https://www.theguardian.com/environment/2021/feb/23/global-freshwater-fish-populations-at-risk-of-extinction-study-finds?fbclid=IwAR0SgPC4jBX0V7aD9v_yEp3Kh3qJdrKt-8rp3rSG8TrbUo38eEi3psIXjsg

    Like

  13. Kevin Hester says:

    “But the loss of a key urchin predator, the sunflower sea star, due to sea star wasting disease left the kelp forests of Northern California without any predators of sea urchins, which are voracious grazers of kelp.”
    The loss of one species can trigger an extinction cascade as Professor Corey Bradshaw described in his paper on the subject.

    https://phys.org/news/2021-03-collapse-northern-california-kelp-forests.html?fbclid=IwAR3CRijbSMaLNep5Ogu85laSW5vWb4fKHmjkCSbxqdhJcfS7WroX_QVluQs

    Like

  14. Kevin Hester says:

    This video was made 6 yrs ago, there have been plenty of extinction cascades since.

    Like

  15. Kevin Hester says:

    “All complex life depends on oxygen. It’s the support system for aquatic food webs. And when you start losing oxygen, you have the potential to lose species,” said Kevin Rose , author and professor at Rensselaer Polytechnic Institute. “Lakes are losing oxygen 2.75-9.3 times faster than the oceans, a decline that will have impacts throughout the ecosystem.”
    https://eurekalert.org/pub_releases/2021-06/rpi-wll052821.php?s=04&fbclid=IwAR20DPnNpsgAG16cy8FpKPJAQBcIY3V4T9AGFTFKkhKHcNVfmdkXiEhTViw

    Like

  16. Kevin Hester says:

    Courtesy of Shannon Rooney:
    “We know animals can die when temperatures rise to extremes they cannot endure. However, our research suggests males of some species can become infertile even at less extreme temperatures.”

    “This means the distribution of species may be limited by the temperatures at which they can reproduce, rather than the temperatures at which they can survive.”

    https://phys.org/news/2021-05-infertility-underestimating-badly-climate-animals.html?fbclid=IwAR3jrXGv7AgPXl5L7Ajped8agIZW7dR8nfT1XuzHKYNvNIrVq0i5Zz04G7M

    Like

  17. Worldwide existential threat even though the link was about AUS… And nothing changes but for the worse!

    Worldwide ecocide. This is insane.

    In this country our ‘new’ (ancient old corrupt neoliberal corporate right winger) ‘oh so progressive climate-aware’ president who was elected because…he wasn’t Trump….is doing exactly what I predicted he would do because I based my thinking on HIS GODDAMNED PUBLIC RECORD of what he supported and what he actually did over the past decades.

    He is Trump, just a Trump-lite form of that dickweed pansy-ass frat boy Fascist billionaire. Our new president earned his nickname of Senator Mastercard from Delaware…

    His campaign promise of ‘doing something about climate ‘change’ has obviously turned into that secret meeting with the rich that went public where he promised them nothing substantial will change. Guess which promise he has kept?

    The Biden (BUY-dems) administration is now on track to approve MORE OIL & GAS LEASING ON PUBLIC LANDS THAN OBAMA (who was absolutely horrible) OR TRUMP (who was even worse). Looks like Buy-dem has been bought, eh? No surprise there!

    I had arguments with friends of mine over this asshole who became visibly upset with me for the documented information I was giving them because it didn’t fit what they wanted to hear. Trump derangement syndrome? They literally had their metaphorical hands over their ears while yelling LA-LA-LA-LA at me.

    Now it’s my turn to say “I TOLD YOU SO” which will probably piss these democrats off even more. A couple at least have recently (very sad-faced) told me I was correct in my assessment of Biden. The Rethuglican Fascist Party is going to take the government back over soon and with all the vote fraud going on that the Democrats are NOT addressing, there might not ever be another election. Not that we actually have those anyway, ya know? When all you are allowed is to vote for one of two pre-approved candidates funded by they same people it really isn’t an election.

    I have almost finished ‘Dime’s Worth of Difference’ Beyond Lesser Evil Voting’ by counterpunch creators. A couple years old and it nails why voting Democan or Republicrat will NEVER change a damned thing.
    ____

    The US is a Fascist Corporate Oligarchy, classic inverted totalitarianism. And there is nothing going to stop the complete destruction of the biosphere by the Capitalist corporation owners because this is a world-spanning empire with tentacles in damned near every government.

    My oldest friend DP in the Islands has been describing the death of the coral on Windward Side of O’ahu where he’s out on the reefs more than he is on the beach. It’s dead white for a mile offshore or more, And there are no large pollution sources on that side of the island. No factories etc etc. But it’s bleaching anyway. Heat death.

    And here? The logging continues. There aren’t any other jobs for the young low-education I live among. And there really aren’t all that many jobs down in the city for them, either. Automation and offshoring to low wage slave countries works when all you want is higher profits!

    So the on-going clear-cut hills will continue to shed what little rain we get and the aquifers beneath our feet will continue to drain and…nothing will change but for the worse. There are far fewer insects around because I used to be able to look off the porch and see huge clouds of them buzzing around in the beams of sunlight. Not so many anymore, and far fewer species visible like butterflies that are nearly extinct here compared to even ten years ago. I see a couple here and there, solitary ones not the clouds of them one could walk through. I’m noticing a distinct drop at night as there are less moths and other night bugs attracted to the lighted windows. I don’t keep lights on outside at all unless I’m doing something so the property goes very dark after sunset.

    It’s been so hot that the mama robin that built her nest under my porch roof abandoned the three eggs in it. Swallow babies leaped to their death from the birdhouse hanging from another roof. Death of the biosphere.

    sealintheSelkirks

    Liked by 1 person

  18. Kevin Hester says:

    This is exactly how we end up with “Extinction Cascades”.

    Baked barnacles, scorched cherries: the disastrous impact of heatwaves on plants and animals

    https://www.theguardian.com/us-news/2021/jul/31/global-heating-climate-crisis-animals-water-crops?CMP=oth_b-aplnews_d-1

    Like

  19. Read this today on RSN. Being an ocean-born & raised surfer I can’t even picture this. EVERYTHING is dead? Kelp, barnacles, everything in shallow water just cooked to death? Holy shit.

    Baked Barnacles, Scorched Cherries: The Disastrous Impact of Heatwaves on Plants and Animals

    By Gabrielle Canon, Guardian UK

    01 August 21

    https://readersupportednews.org/news-section2/318-66/70741-baked-barnacles-scorched-cherries-the-disastrous-impact-of-heatwaves-on-plants-and-animals

    More than a billion sea creatures across the Pacific north-west perished in this year’s heatwave. And it’s just a taste of what’s to come

    When forecasts foreshadowed the Pacific north-west’s devastating heatwave at the end of June, marine biologist Christopher Harley was alarmed and intrigued.

    Then came the smell, and his feelings somberly shifted…continued at link.
    ____

    Weather has shifted to expected lightning-bearing T storms cloud masses rolling through. Splatters of raindrops but no more than 1/10th of an inch predicted except for short downpours from those massed.

    It was 82’F at 1am last night as the calendar turned over to the first day of August. It is 82’F right now at 3:30pm. Today is the lowest temperature I’ve recorded since 17June…

    sealintheSelkirks

    Liked by 1 person

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

Kevin Hester

Kevin Hester is currently living on Rakino Island, a small island in the Hauraki Gulf near Auckland, New Zealand, monitoring the unravelling of the biosphere and volunteering at the Rakino Island Nursery is currently developing a proposal to create a marine reserve near by. The Island has no grid tied electricity or reticulated water.  I catch my own water from the roof and generate my electricity from the ample solar radiation on the island.

My Submission to the Ministry of the Environment
Kevin Hester, Dropping Anchor in an Exponential World
Follow Kevin Hester on WordPress.com
Blog Stats
  • 366,115 hits
Categories
Tags
2C 4C 5C 6th Great extinction 16 Ocean Passages Abrupt Climate Change Acidification of Oceans Alaska North Slope Alberta AMEG Anecdotes of Neil Finn and My Life "Colliding" Anthropogenic Climate Disruption-ACD Anthropogenic Emissions Anti-Nuclear Appearances Arctic Methane Emergency Group Arctic News Blog Assassination Atlantic Meridional Overturning Circulation-AMOC Atmospheric CO2 Australian Greens Bill McKibben Bleaching Event Brush Fire Canada Catastrophe Cenozoic Era China Chris Hani Chris Mooney Climate-Exodus Climate Change Research Centre CO2 Warming Coral Reefs Coral Sea Cory Morningstar CounterPunch Cruise Industry Dahr Jamail Deep Green Resistance Donald Trump Dr. Guy McPherson Dr. James E Hansen Dr. Mike Joy Draught Dr Natalia Shakova East Timor Ecocide El Nino Endangered Dolphins Eric Draitser Extinction Radio Feedback loops First Blue-Ocean Event in Arctic Forestry Fort McMurray Fukushima Daiichi Gaia Gene Gibson Geneva Conventions George Perkins Marsh Going Dark Great Barrier Reef Green Movement Guests Gulf Steam Gulf Stream System Habitat Habitat Wars Harold H. Hensel Heatwave Mass Casualties Imperialism India Interviews Invitations IPCC IRA Ireland Irish Freedom Movement Isis Jack Williams Jason Box Jennifer Hynes Joanna Macy John McMurtry John Pilger John Schramski Karl Marx Katharine Hayhoe Katie Goodman Kevin's New Webpage Kevin Trenberth Larissa Waters Limits to Growth Livestream Malcolm Light Mangroves Mark Eakin Mass Marine Death Max Wilbert Mean Air Tempature Michael C. Ruppert Michael E Mann Mid-East Middle East Mike Sliwa Monarch Butterflies Most Abnormally Warm Month Recorded. Nafeez Ahmed Naomi Klein Nature Bats Last Nelson Mandela New Webpage New Zealand North Africa November Speaking Tour with Guy McPherson Novosibirsk Reservoir Nuclear Nuclear War Overdevelopment-Overpopulation-Overshoot P.M. Kohn Key-Eco Terrorist Palaeocene-Eocene Thermal Maximum--PETM Patsy O'Hara Paul Beckwith Paul Craig Roberts Paul Ehrlich Pauline Panagiotou Schneider Paul Street Perfect Storm permafrost Peter Sinclair Phytoplankton PM John Key Podcast Pollution PRN Professor Paul Beckwith Prof Guy McPhersons Abrupt Climate Change Tour NZ 2016 Psychopathic Records of Air Tempatures Relief Analysis Richar Vivers RobertScribbler Robin Westenra Runaway Abrupt Climate Change Runaway Global Warming Russia Sam Carana SeeMoreRocks Blog Siberia-Yamal-Taimyr Sinn Fein South African Communist Party South Florida Corals South Pacific Storms of Our Grandchildren-James E Hansen Subsea Methane Sustainability Syria Syrian Conflict Temperature Anomalies TEPCO The Collapse of Industrial Civilisation The Pain You Feel Thom Hartmann Tipping Points Tour NZ 2016 Transport Truthout Umkhonto we Sizwe United Nations Updates US Presidential Elections War Crimes Warmest February on Record Warmest Russian Winter Warnings Water Vapor Weather Channel wet-bulb temperature World War
Social
%d bloggers like this: