Category: News

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Analysis has found that 1/3 of land set aside for restoration is worse than before in Australia

Large parts of Australia look like the above photo, beautiful in a rugged way, but quite useless for the survival of many of Australia species. Australia has a wide range of habitats, which means that there are many areas which need to be protected.

The problem is, according to this study, declaring an area protected appears to be having little change on what is happened.

1/3 of all land that is set aside for restoration and conservation, has got worse rather than better. Given the fact that so many species are just hanging on to existence, this could be very bad news.

In one area that was studied, the majority of the area was cleared paddock – a serious problem for the koala and grey-headed flying fox which called the area home.

In particular, the idea of this scheme is so called biodiversity offsetting – if you are to clear wildlife habitat, you protect a similar sized area elsewhere.

Continue reading “Analysis has found that 1/3 of land set aside for restoration is worse than before in Australia”
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Tigers have been successfully released into a part of Russia that they were lost from 50 years ago

Two of the released tigers in a part of Russia not been seen for 50 years – photo credit ANO WSC

Tigers once roamed Russia from East to West, but by the mid 19th century, the population had fallen to just 1000. However, the question is what was it like originally? Well, one thing we have found out in the last decade, was the fact that the Caspian tiger never existed, this was instead, merely the most westerly population of the Amur tiger. The scary thing about this, is it suggests that the Amur tiger would have roamed possibly millions of square miles of land – and presumably have existed in huge numbers, perhaps over 100,000, though the decline in these numbers is likely to predate modern humans (our ancient pre homo-erectus ancestors were incredibly efficient at killing mega-fauna, thought to be responsible for much of the worlds extinct mega fauna).

While parts of the western end of the tigers range are now well populated by humans, there are still vast areas ready for the tigers return – such as countries like Kazakhstan. This move is perhaps less of a jump forwards – never-the-less, tigers have not been seen in this new area for 50 years.

The Amur tiger population dropped very low, which means that these 6 initial translocations are well suited to form an initial core for the new population, though to retain genetic diversity, it will be necessary to translocate tigers back and forth for the next few decades, until both tiger populations are more safe.

We are a long way from the Pri-Amur tiger population being viable in the long-term, but this reintroduction is a good first step. I hope to see an acceleration of these reintroductions (it was a decade ago that translocation into Kazakhstan was discussed, and this has not yet happened). Is this just the first step in allowing the Amur tiger to return to former haunts, or will this be the only step? Time will tell, but at its worst, this should double the habitat, and potentially the population of the Amur Tiger, and is therefore healthy.

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EJC has ruled against Austria on wolf hunting

Wolves have only recently returned to Austria, with an estimated 80 wolves spread throughout the country. It is perhaps not surprising therefore, that animal welfare activists, took the government to court, when it set cull numbers at 20, or 25% of the population a year.

The Austrian government had pointed to a condition in the 1992 EU directive on protecting wildlife, which states that wolf hunting to prevent financial damage can only be done if the population is in a favourable conservation status – something certainly not true in Austria. This condition can only apply to a wolf population which is stable.

I would also suggest that plans to kill 25% of the population each year, should also damage this, but this is a discussion for another day – when the population is far larger than it currently is. Other countries like Holland have similar sized wolf populations, and so this ruling could be applied in a variety of places.

Regional governments have absurdly argued that the wolf is no longer endangered in Austria, and that therefore its protection should be reduced. had the government listened would a ruling similar to the USA have come forward? Such that open season could be declared?

It is a good thing that wolves are so good at holding on, as we have spent much of our time attacking.

It is funny to think, that it is estimated our relationship with wolves (in the form of domesticating them as dogs) likely goes back to a similar point to the advent of growing crops, and well before the time that we started to keep livestock.

Given our fondness of dogs has deeper roots than our fear of wolves, it seems odd, that wolf persecution ever really got underway. It is true that wolf populations do need handling, but their existence is more good than bad. Places like the UK where they are missing, show this (when looked at the situation rationally)

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Stored carbon dioxide ( the so-called Carbon dome) could become a giant battery, but will batteries kill it?

Huge carbon dioxide stores, with the gas held at high pressure (and therefore liquid, have been shown to be able to hold vast amounts of energy, and the ability to be released on demand.

Energy Dome’s CO2 Battery system has currently been show to be able to store and generate up to 24.5 megawatts (MW) of power (with 12 acres expected to be able to store up to 200MW), which sounds very impressive…. but…. current battery power means that 1 MW of battery can fit in a 20 by 40 foot container, which means that 1 acre could theoretically take 200MW of batteries.

When first thought of, it was thought that this would allow energy done to store energy at a cost of roughly $200 per kwh. At the time, lithium batteries cost $300 per kwh, however this has halved to just $150.

In other words, lithium batteries (and this assumes no breakthrough in sodium batteries or something else) are cheaper, smaller, simpler and safer – so why would you look to create another form of electricity storage, that is worse on so many levels.

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Our behaviour may be still pushing the Northern right whale to extinction – entanglements may use as much energy as rearing all young

The Northern right whale was hunted to the brink of extinction – with less than 500 left when hunting ended. To put this in perspective, only 300 Southern right whales were left when hunting stopped, it is thought that there are now 3000-4000 Southern right whales.

Now, it is true that historically the Southern right whale is thought to have numbered as 55,000-70,000 individuals, suggesting that the current population is 3-5% of historic numbers.

However, the current estimate for the Northern right whale population is 386. While has the Southern right whale population grown over 1000%, and in the same time, the northern right whale population declined?

What is different?

Continue reading “Our behaviour may be still pushing the Northern right whale to extinction – entanglements may use as much energy as rearing all young”
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The smallest elephant in the world is in danger of being lost

There has been much discussion about the history of elephants in Borneo, and whether their loss is a problem

The origin of elephants in Borneo is unknown. Known for hosting the smallest elephants in the world, there are 2 theories as to how the elephants got to the island. The first is that they were released by a ruler in the 17th century (The most rapid population growth ever seen was 7,1% after the end of poaching in a reserve in Tanzania, a population of 30 elephants could become 1000 in just 50 years) – if this was the case, then their loss would not be bad; and the second is that actually the elephants arrived on the islands hundreds of thousands of years ago (as high as 300,000 years).

It is increasingly agreed that the second one of these ideas is likely to be correct. Though having said this, genetic analysis suggests that the whole population started with just 28 elephants.

Just 1000 are found on the island at the current time.

All wildlife on Borneo is at threat, as the palm oil industry continues to demand increasing quantities of prime rainforest be cut down. As this happens, elephants are forced into human areas, in their search for food, and then into conflict.

The Borneo elephant has only recently been assessed by the IUCN red list as a separate subspecies, but it is hoped that this recognition might increase tourism on this species as well as conservation dollars to save this species from its slow slide towards extincion

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Monkey species in Egypt lived on fruit 30 million years ago

It is hard to believe that habitats like this could possible have previously held rainforest which produces enough soft fruit for monkeys like this. Just 10,000 years ago crops were a new thing, in the same way that cows and other livestock farming. Before this, we had to hunt for virtually everything.

The reason that they can work out what monkeys ate, is because they have seen the teeth, and they were not chipped at all, as a result of soft diet. There are thought to have been roughly 5 species of this small monkey family living at the time (30 million years ago). This is new, as formerly it was thought that early primates ate some fruit but also harder foods – clearly they specialized in fruit earlier than we thought.

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The island where the feral species is an elephant

Around the world, there are invasive species – from grey squirrels in the UK, to Macaques on Gibraltar, however, all these pale on comparison to having to live with wild elephants.

The elephants were bought to the Andaman islands in the late 19th century, to work in the timber operation, which continued until the last few decades. Thankfully, much of the forest in the islands survives – with some islands retaining almost 90% forest cover. This means that the elephants might well be able to thrive into the future.

The islands lie 850 miles from the coast of India, which means that while elephants would not have existed natively on the islands, there are many species which would be found in the same area.

Interview Island and North Andaman hosts these elephants – though they need to be watched, as a population of 100 elephants is already small, but if split between 2 islands, humans may well have to be helped to remain genetically varied enough to survive long-term.

While some have suggested that the elephants have damaged biodiversity, with some species having become less common, this ignores the impact of the timber extraction – it is far more likely that this is an impact of the many decades of pulling specific trees out of the forest.

Given the endangered status of the Indian elephant, this population is precious, but whether it can be left where it is long-term is something we do not know. There are still roughly 30,000 elephants in India, but the Andaman island elephants are going to need to be watch, long-term, to make sure that they do not damage species only found in their new home.

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America is following in Europe’s footsteps, with their recovering brown bears – now they are moving into human areas

This is a video of one of the clashes that I am talking about. The Grizzley bear population in 1975 ( in the lower 48 states) was just 700-800 (this excludes Alaska, where the current figure is 30,000) . The lower 48 states population has grown to around 1000 or an almost 50% increase.

There is a problem with this. Both in and out of Alaska (as well as Canada) these bears need space, and so are colonizing land that they previously roamed. Unfortunately, people rapidly forget how to live with animals like grizzly bears, so it is taking some significant work to live alongside these large animals once again.

The problem is, that when those encounters spike, generally authorities panic, and this generally leads to them looking to allow hunting once again. THIS IS DESPITE THE FACT THAT THE POPULATION IS NO-WHERE NEAR RECOVERED AT THE CURRENT TIME.

Continue reading “America is following in Europe’s footsteps, with their recovering brown bears – now they are moving into human areas”
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The Ross ice shelf, in Antarctica, has been found to move

The Ross ice shelf is vast, covering 182,000 square miles, it is only slightly smaller than France, and yet a study has shown, that the whole ice shelf can move 40 cm in just 10 minutes. These were generally caused by slips in the Whillans Ice Sheet, which is one of just a few ice flows into and through the area.

The whole shelf was found to move 6-8cm once or twice a day, triggered by these flows moving. This could be the cause of both icequakes, and fractures running through the ice (fractures are important, as they make it more likely that a section of the ice will break off the edge of Antarctica and head into the ocean. While this ice can, on occasion survive a long time – A23a broke of Antarctica in 1986 and has been floating free for much of the time since (except for a decade or so when it grounded); it was estimated to be 400m thick and weigh in at nearly 1 trillion tonnes.

This is a problem for a simple reason. Unlike the north pole, there is land under the ice in Antarctica. This means that while in the north pole, the ice sheet is already in the sea, so its melting cannot increase sea level, Antarctic ice all does increase sea levels.

The Ross ice shelf is known to have collapsed 120,000 years ago during the last interglacial period, and contains enough ice to raise sea levels by 11.5m (this would also cause another 2m of sea level rise because of the glaciers which would no longer be held back).

A Dutch startup, is trialling mitigating this in the Arctic, by pumping sea water onto the ice. This then freezes, thickening the ice. It is possible that this might work in the short term, however, what is clear, is that the only long-term solution, is to stop burning fossil fuels, so as to halt the heating of the earths climate.

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