Showing posts with label Biodiversity. Show all posts
Showing posts with label Biodiversity. Show all posts

Monday, December 4, 2023

Did capitalist corner-cutting kill the Thylacine?

 


(Above: Original Image by Daniel Eskridge on Flickr Commons)
Written by: Leo A. on 5 December 2023

Amidst the ongoing crisis of environmental destruction across Australia, countless species of plants, fungi, animals and so on are rapidly becoming threatened with extinction. In order to save as many of these as possible, it is important to have as accurate as possible an “inventory” of threatened species. Some organizations, most notably the International Union for the Conservation of Nature (IUCN), attempt to do exactly this. However, as we described in a previous article, capitalist interests' interference results in many species which should be officially considered vulnerable, endangered, or critically endangered, appearing on no such lists. 

These “hidden threatened species” can be grouped into multiple categories. In some cases, a species may not be well-studied enough for its appropriate conservation status to be known, and may remain in this situation for an extended period of time, resulting in the species either being labelled “data deficient” or being given an inaccurately “secure” official status. Alternatively, a species may not be “registered” at all, either because its existence is genuinely unknown, or because the body of evidence supporting the species’ existence is not yet considered absolutely conclusive. Finally, a species may not be listed as threatened as it may already be erroneously considered extinct. 

The difficulty in assessing hidden threatened species lies in the fact that, while all of these categories make theoretical sense and have plenty of historical precedents, due to the problem’s very nature there are no officially-recognised present-day examples. But while we cannot know with certainty how many hidden threatened species are in Australia or what those species are, we can at least find clues that could lead us in the right direction. And a research study published in March may have revealed one such clue for a species falling into the lattermost category – an animal which likely persisted
beyond its “official” date of extinction (the scientific term is that it is a ‘Lazarus Taxon’). 

When considering the extinction of Australian wildlife, the most “iconic” example which comes to mind is the Thylacine, Thylacinus cynocephalus, also sometimes known as the Tasmanian Wolf or Tasmanian Tiger. Prior to the British conquest, this marsupial was populous across the island of Tasmania, co-existing with other unique wildlife and the Indigenous people since prehistoric times. But when colonizers first arrived in Tasmania in 1803, they began an act of ecological genocide. The largest flowering trees on Earth, the giant mountain ashes, were mostly cleared. The Tasmanian emus were hunted into extinction within a few decades. 

Areas of otherwise-unprofitable forest were cut down to allow the grazing of sheep, and the Thylacine came into conflict with sheep farmers. Whether any sheep really fell victim to Thylacines is unknown, but the claims of predation by some sheep farmers were on such a scale as to be physically impossible. Like most politicians in every capitalist state, the Tasmanian officials were self-serving cowards with knee-jerk reactions. To be seen as doing something, they offered bounties on Thylacines from 1830 to 1909. During those years, 2184 bounties were paid. 

Deliberate extermination attempts, snaring, trapping, capturing, and habitat damage reduced the species’ population to extreme rarity. Many specimens were caught for zoos around the world, but no concerted attempt was made to captive-breed them. The last Thylacine in captivity died on September 7, 1936, at Hobart Zoo, apparently from cold, as it had been locked out of its sleeping quarters. 

The species was officially declared extinct fifty years later in 1986. 

If that was where the story ended it would already be a tragedy. However, using a detailed statistical analysis the new study sheds light on a darker conclusion to the animal’s story – that at the time the Thylacine was declared extinct, there were likely still a few left in the Tasmanian wilderness. In other words, that the Thylacine could’ve still been saved from extinction had the right decisions been made, but was instead simply given up on. 

The study used a sample of one thousand, two hundred and thirty-seven unconfirmed records of Thylacines in Tasmania between 1910 and 2019. While no-one ever reports sighting a Dodo, Passenger Pigeon, Quagga or Moa in the present day, alleged observations of Thylacines continued well past the 1930s. Of course, we should not immediately jump to the conclusion that these observations were all genuine. As a remarkable example of convergent evolution, the Thylacine closely resembles some dog breeds, and as such some observations may be the result of misidentification. Some others may be the result of deliberate dishonesty. 

But these reported sightings come not just from laypersons, but also from some very credible witnesses such as zoologists and wildlife rangers. That alone doesn’t conclusively prove anything, since even experts can make mistakes, so the new study takes a very different approach. Rather than rely on the legitimacy of any specific observations, it applied a mathematical model which accounts for uncertainties to estimate the most likely time in which the animal went extinct. Several different scenarios were calculated – in some, observations by experts are given more “weight” in the calculations, in others, only specific types of evidence is counted, and so on. 

In total the results of 16 scenarios were presented. In the somewhat “average” scenario the study chose to emphasize the results of, in which all 1237 records are counted but all are given a low “weight” in the mathematical model, the Mean Time of Extinction (MTE) is in the year 1993, with a 95% confidence interval spanning the years of 1969 to 2017. In the most optimistic scenario, the MTE is in the year 2007, with a 95% confidence interval spanning the years 1975 to 2040, and a probability of the species’ survival in 2023 of thirteen percent. 

We are left with two uncomfortable possibilities. The first is that the extinction of the Thylacine in the wild took place between the death of the last individual in captivity - and most likely the time when it was “officially” declared extinct - and the present day. In other words, the Thylacine could have been saved within the past few decades, but was essentially driven to extinction by the negligence and corner-cutting of wildlife protection policies under capitalism. The IUCN acknowledges this phenomenon in which a species’ proclaimed extinction becomes a self-fulfilling prophecy, referring to it as the ‘Romeo Error’. 

The second possibility is that the total, complete extinction of the Thylacine in the wild not only didn’t happen as early as was previously believed, but hasn’t happened yet at all. Recall again that the likelihood of the species’ survival in 2023 was calculated to be up to thirteen percent. A maximum of thirteen percent is, admittedly, a rather low probability. But is it really so low as to receive the neglect, indifference, and ridicule it’s so far had? The study even went as far as to map out where in Tasmania the last surviving populations of the species may be. 

It is easy to understand why our capitalist politicians lean in favour of sweeping this whole situation – and others like it – under the rug. But the effects of this dismissive attitude trickle down to individual researchers and experts too. A little earlier than the Thylacine study’s publication, in January, another research study tried to explain some of the cognitive biases that can afflict those without anti-environmental motives. While the study primarily focused on the Caspian Tiger (an unrelated animal native to Asia which happens to be in a similar situation to the Thylacine), the following conclusions are equally applicable here: 

“Humans including academics, conservationists, and wildlife managers are hardwired for cognitive biases. Cognitive biases play a role when people assessing a species’ status notice evidence in the first place; how they interpret it, and how they make conclusions during the process of species assessments. The case of the Caspian tiger demonstrates the cognitive bias of the Dunning–Kruger effect in action and the potential implications for conservation. The Dunning–Kruger effect, a phenomenon known in psychology, prevails when people overestimate their competence and underestimate their incompetence in social and intellectual domains. As a result, people not only reach erroneous conclusions and make unfortunate choices, their incompetence prevents them from critically evaluating their own thinking.” 

In other words, people overestimate how thoroughly they know what’s in our biosphere, and as such are hesitant to consider any possibility that could be considered out-of-the-ordinary. This of course is a result of the capitalist narrative that mankind has “conquered” nature and that our environment primarily exists to serve capitalist interests – and not as a system that has existed for billions of years before class struggle even began. 

So how will the environmental conservation issue of hidden threatened species be treated differently in a socialist Australia? An important change is that sufficient effort should be put into properly surveying and recording the contents of our nation’s ecosystems, to ensure that ambiguous situations can be cleared up. This should be implemented alongside other efforts to protect and preserve these ecosystems. In our pre-revolutionary Australia, our efforts will have to be smaller in scope. Much of the environmental activism we are already familiar with indirectly supports hidden threatened species by helping to protect their habitats. And as with all environmental issues, spreading awareness about the problem may also prove beneficial. 

Above all else, we must understand that the more we know – not believe, not assume, not guess, know – about our biosphere, the better we will be at saving our nation’s species from the ongoing mass extinction crisis. 

 

Monday, April 17, 2023

Capitalism’s neglect for threatened species encourages extinction


Written by: Leo A. on 17 April 2023

It’s hardly a secret that the capitalist class cares little about the wellbeing of our natural environment, and in particular the wellbeing of threatened species – those being species classified as vulnerable, endangered or critically endangered. In minds of the capitalists, preserving nature is more bothersome than beneficial, as protecting threatened species can be expensive, and protection rarely delivers any profit for anyone. The past few months have seen several demonstrations of this dangerous mindset at work.

The World Wildlife Fund’s 2022 Living Planet Report has outlined the global consequences, so far, of capitalist destruction of nature. It’s been calculated that within the past fifty years, the populations of wildlife species have decreased by, on average, 69%. And that’s the average, across the entire non-domesticated animal kingdom. For some groups of animals, types of habitats and parts of the world, that percentage is much higher – and of course for recently-extinct species it’s 100%. 
 
This is not the kind of crisis which can be resolved simply by “putting the right people in charge”. While small efforts can and should make some amount of positive change, a capitalist market economy can simply never be sufficiently incentivised to take serious, effective action. Under capitalism it is strategically beneficial to be unethical, in this context environmentally, and the most unethical and exploitative capitalists naturally outcompete all others. 
 
Environmental crisis in Australia 

The end of November brought to light what environmental groups have called a “tangled mess of inaction” as the federal environmental department confirmed that 372 recovery plans for 575 threatened species and ecosystems, representing 89% of all active recovery plans, will reach their legislative use-by date by the end of this year. 355 of those 372 plans expire at the end of April. Past governments have failed to meet the requirements to update recovery plans every five years, and this is the result. The fact “inaction” and “under-resourcing” were cited among the causes of this blunder demonstrates how much, or rather how little, the capitalist class cares about these species. 
 
This January a new study showed that among the 134 known species of cartilaginous fish (sharks and rays) which inhabit reef ecosystems, nearly two thirds are threatened with extinction and 14 are already critically endangered. Sharks and rays don’t always have the best reputation, of course, but I’ve personally dived with Stingrays in the past and I can verify that they are not only non-confrontational, politely moving out of the way so long as they have time to do so, but they’re even somewhat adorable. Certainly not the kind of animal that deserves to disappear from our waters. 
 
‘Hidden’ threatened species 

An important factor that must also be considered when discussing wildlife conservation is that the official number of threatened species is almost certainly just a fraction of the total. As mentioned previously, capitalists find it strategically bothersome to preserve nature, and as such there are a number of techniques that may be in place to artificially reduce the official number of threatened species from their actual total. First, a species may be misleadingly given a deceptively “comfortable” conservation status that doesn’t accurately reflect the situation it’s in. Second, a species may be prematurely declared extinct while a small handful hang on in remote areas, thus ending efforts to protect it. Third, a species may not be sufficiently evaluated to be given a conservation status, and a proper assessment of its status may be continuously postponed, leaving the seriousness of its situation uncertain. Fourth and finally, a species may not be “on the list”, so to speak, at all. This can either be because no-one has seen the species before, or because the body of evidence in support of the animal’s existence is officially considered insufficient to warrant further investigation. 
 
This last point is often overlooked. People tend to be under the false assumption that the process of discovering our natural biosphere was some historical thing that ended at some point in the past. This is quite far from the truth. In fact, according to a research study published less than a year ago in late April of 2022, within the “Australasia” biogeographic realm (which encompasses Australia plus some surrounding islands such as New Guinea), in addition to the 122 species of land mammal officially known to exist there are probably around 19 left awaiting formal recognition. And that’s just land mammals – marine mammals, birds, non-avian reptiles, amphibians, fish, invertebrates, fungi, plants and so on almost certainly also contain currently “unregistered” species. 
 

We cannot expect Australia’s (or for that matter, the world’s) environmental crisis to improve under a capitalist system. We should of course support and encourage what environmental efforts can be allowed under this system, but the longer the capitalist class is allowed to rule, the worse the crisis will get, the more species will go extinct, and the harder it will be to eventually recover in the future. Under socialist leadership, Australia will have a much easier time taking proper measures to protect every at-risk species in our rainforests, rivers, reefs, and so on.  

Saturday, July 17, 2021

Webinar: Our laws need to work for nature!

 Written by: Nick G. on 17 July 2021


(Above: the critically endangered Regent Honeyeater has suffered through habitat loss)

From the First Peoples to the most recent migrants, Australians are acutely aware of the unique nature of this continent’s flora and fauna

.Unfortunately, the history of colonial occupation and aggression has had a devastating effect on the natural environment. This is on top of the colonial genocide directed at First Peoples in the course of the unsettlers’ attempted dispossession of Country.

After the colonial period, free competition capitalism developed into the stage of huge monopolies controlling the vast regions of the Second and Third Worlds by the export of capital. Massive multinational corporations scrambled to exploit both the natural world and people’s labour power.

Their increasingly destructive rape of the environment created its own opposite, a powerful people’s movement determined to protect what was left of our biodiversity.

In March, 2018 we wrote a lengthy report on struggles to protect birdlife from corporate greed. It can be accessed here, and also on p. 18 of our downloadable book Fight capitalism’s destructive impact on nature. 

We have also taken a stand against the watering down of the provisions of the Environmental Protection and Biodiversity Conservation (EPBC) Act and wrote a submission to a parliamentary review of the Act.

In recent days, Birdlife Australia conducted a webinar on strengthening our national environmental  laws.

The session was recorded and is available here on Youtube.

Participants talked about proposed changes to the EPBC Act that would weaken environmental protections. 

It was a great display of grass roots Australians struggling in their own area of interest and expertise against the big corporate world.

They know that since colonisation, about 100 of Australia’s unique flora and fauna species have been wiped off the planet. The rate of loss, which is as comprehensive as anywhere else on Earth, has not slowed over the past 200 years.

Twenty-two species of birds have become extinct following the beginnings of the process of unsettling this continent’s peoples and wildlife.

Birdlife Australia has called on people to write to their MP demanding the strengthening of environmental laws.

Ultimately we must ensure the extinction of the system that allows the private pursuit of capital accumulation – capitalism – if we are to ensure the survival of our planet and its biodiversity.