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Before Europeans arrived, Grizzly bears were relatively common in California, with an estimated population of 10,000, around 20% of the USA population at the time.
Continue reading “Hyper-carnivorous extinct California Grizzly bears were actually mostly vegetarian – before Europeans arrived”Octopus can appear extremely intelligent, as a result of their intelligence being quite specific. They are superb problem solvers (and are capable of watching other octopus and learning through this), very capable escape artists (in an aquarium, an octopus was shown leaving its tank, and entering the neighbouring tank to catch fish at night) and have a phenomenal ability to change their body colour and texture to match the background.
Their brain setup, is completely different to mammals similar to humans, as their brain is spread through their body.
It should be noted, that an octopus can grow at 5% a day, which means that they are a very efficient way to create meat. Still, I would be very hesitant to eat them regularly (and obviously, any octopus that you might consume must come from populations that are being harvested in sustainable ways).
I would argue that farming highly intelligent octopus for food may not be great, but is much better than hunting wild octopus for food.
What do you think?
The quiet bays in the Melanesian archipelago are perfect for the sea grass meadows, which in turn means that it is fantastic for dugongs – animals also known as sea cows. Just a few years ago, these animals were a regular sight. Growing up to 4m long and 400kg, just a few years ago, it would not be an unusual day when you would see one of these animals in both the morning and afternoon. Now they are rarely seen.
Officially, they are only classed as vulnerable (one of the lowest forms of endangered), but given how long it has been, it is unclear how the population is doing. However, unfortunately, given fishermen (and other people on the wate), are encountering them so rarely, it is likely to have got worse. Dogongs in this area behave differently to Australia where they have huge seagrass meadows, so this full survey is certainly required.
Read more: Just how endangered is the Vanuatu dugong? First survey since 1988 underwayIt would be another area, where a growth in the ecotourism industry (ethical – not damaging the animals or stressing them) could be fantastic. Many surveys done on sea mammals, take on tourists to reduce their cost. Personally, I will always look for a research boat, as they want to be there, and will not go out if there is no chance of sightings.
The next-door population of New Caledonia was recently downgraded to endagered, and the east African population is classed as critically endangered.
Globally, the threats to these animals include gill-net fishing, boat traffic, coastal development and even hunting. Unfortunately, climate change is also a threat – rainstorms are becoming far more common, and these are damaging the seagrass, alongside cyclones.
Currently, it is estimated that the world looses 7% of its seagrass meadows each year. This should be concerning, as sea grass has a roughly equal ability to draw down carbon dioxide to land rainforests – so the more we loose the harder it will become to halt global warming. It should also be noted, seagrasses grow more healthily with dugongs present – help keep seagrass beds healthy by grazing on them, which controls their growth and disperses their seeds. This process is called “cultivation grazing”. The benefits on seagrasses include growth control (rapid growth can be bad for the long-term survival of the seagrass), disperse seeds (often with some ‘fertilizer’, which can help the seeds grow particularly well- and like various plants and elephants, seeds that have gone through a dugongs digestive tract is more likely to grow than those that do not), Improve genetic diversity (dugongs move between areas of the meadow, and take seeds with them) and help recovery after cyclones (by connecting areas of the meadow, reseeding meadows in danger from elsewhere where they are doing alright).
Unfortunately, this makes the dugong a keystone species – therefore, its loss would have a very negative impact on the whole ecosystem. Other species that rely on seagrass including sea turtles, manatees, a wide array of fish, many sharks are born in the seagrass, including lemon sharks nurse sharks, and bull sharks. A wide array of birds are similarly reliant.
Elephants hunting used to be a common activity. This was banned in Kenya in 1973 and in Botswana in 2014. The trade in Elephant parts was banned in 1989.
For many years, however, conservationists have called for rich countries to ban imports of hunting trophies on a country by country basis. This is for a simple reason – a reserve like the Kruger, has a real issue with a growing elephant population, yet at the same time Nigeria has only 400 elephants left. Tanzania has seen a reduction of elephants of 63%, while Mozambique has seen a reduction of 34%.
This new ruling suggests that imports are only allowed from populations which are large enough to support the loss. Now, I would be interested as to how this is worked out. For instance, could I buy a tiny parcel of land, on the edge of a large reserve, and allow any elephants that step on my land to be hunted?
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)
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”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”
These 3 groups do not intermix, and only very seldom, interbreed. These populations are found in the Southern Pacific, Northern Pacific and the North Atlantic and Mediterranean.
This naturally means that the great white sharp is far more at risk of extinction, than if all the great white sharks in the worlds oceans could interbreed.
These areas appear to be bounded by great ocean currents, which are rarely crossed. This is a problem, as if an individual population is lost, it makes it far more likely that distinct genetic information could be lost with it – take the Mediterranean great while shark population, which has seen a dramatic population decline from historic numbers, estimated at between 52% and 96% (areas like the Maramara sea, are known to have lost 96% of their population) depending on which study you read.
This makes local conservation far more essential, and we need to be careful to not loose any individual populations. There has been a great deal of worry for the great white shark population around South Africa, as they pretty much vanished in 2017, but appear to have returned in 2024. The disappearance of the great white was attributed to 2 orca which had become expert in hunting and killing these sharks – it should be remembered, that while great whites are often at the top of the food chain, they are hunted for food by orca. Whether these orca have gone back to eating something else, hence the great white shark return, is a question that does not appear to have been answered as yet.
European Goshawks were extinct in Britain at the end of the 19th century (and remained rare for over half a century) but in the last 50 years have made an incredible comeback. In the new forest, in the south of England, there are thought to be hundreds of pairs living wild.
In Thetford forest in Norfolk, an estimated 52% of the goshawks diet was grey squirrel. While it is true that they will also take red squirrels, these are generally better at escaping. More importantly, it is thought that Goshawks could be used to stop the grey squirrels population from growing any further.
As I have written before, the pine marten is also important for the recovery of the red squirrel, as it is far more successful at hunting grey squirrels, and they generally do not cohabit in any part of the country.
This will likely not eliminate the direct need for grey squirrel population to be culled by humans, far from it, but may well help towards the idea of giving red squirrels breathing room.
Continue reading “Could the recovery of the Goshawk save the red squirrel?”Livestock takes up roughly 20% of the worlds land, or around 50% of the worlds agricultural land. Astoundingly, around 1.3 billion people around the world are involved in the livestock industry.
The worlds remaining land wilderness, takes up just 25% of the worlds land – should we move toa system of growing meat in labs, we could almost double the amount of space for wildlife, which would allow many of the worlds endangered species to recover.
Apart form saving so much of the worlds wilderness, and wildlife, why should we do this? Well, firstly, the fact that people want things to stay as they are, is not new. Every new invention has lead to a change in the lives of many people – before farming came into existence, all the healthy men of each village (and in places, many of the healthy women) would have spent the majority of their time hunting. Looking at the natural world, animals like lion and leopard split their time between hunting and resting, with little else (apart from reproduction) being thought of.
As electric cars started to appear, the vast majority of car companies tried to stop their progress. Indeed, many spent their time buying inventions and smaller companies, just to kill their electric car program. This was not because they were intrinsically afraid of the electric car, but because they were afraid that if adopted, they might have a smaller market share than they did with the internal combustion engine car. As tends to happen in this situation, however, many of these companies are thought likely to go out of business in the next 2 decades (and it took a start-up, Tesla to fully make electric cars work – even now, many are still trying to go back). The same can be said for the factory production line, and many many others.
The problem is that livestock farming is only second to the fossil fuel industry, in terms of its contribution to climate change, so if humanity is to survive, it needs to change dramatically.
Why should we be worried about saving the worlds wildernesses? I think that a great deal of the population feels that we should save them for their own intrinsic value, but there is more than that. Rainforests around the world are the engine that supplies much of these areas rain, and without the rainforest often the area will collapse into desert.
Some suggest that we should all go to a plant-based diet, and certainly this would do what we want (though it should be noted, that this leaves the livestock industry in the same place – indeed, the livestock industry as it currently is, must have its days numbered, as humanity cannot afford its carbon footprint or it will continue our descent into climate breakdown). The only alternative to this is to produce the dairy and meat through other means; and these means are multiplying around the world, as it is recognized that there is a lot of money available for those who solve it early.
These range from growing meat on a scaffold from cells taken from a live animal. This idea is rapidly growing in popularity, though some think that this is a dead end, and instead a lot of people are looking at brewing microbes, which can be made to have a taste and texture that will make them indistinguishable from the real thing. This would also allow the unhealthy parts like fat to be not grown. It avoids the need for a lot of land, needs no fertilizer and greatly reduces the amount of fresh water needed (some can use salt water).
Protectionism is not restricted to farmers, with many governments getting in on the act, and in the EU a new group is pushing for a continent wide ban.
I think that these things will be developed somewhere, and we will miss out, if this happens in places like China (they have a great incentive, as their population eats little real meat, but as the wealth of people are increasing, they are demanding to eat a diet more like the west. For most of us, we are going to be watching from the sidelines, in terms of what happens next, but we can write to our representatives, and make sure that livestock owners are not the only voices that they hear.
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