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Gharials are a species of crocodile – only about 200 are thought to be living in the wilds of Nepal.
With a far more slender snout than other crocodiles, these animals are easily spotted.
Continue reading “What do we do when an endangered species starts killing critically endangered species? Tiger kills gharials”Yesterday, I wrote about the last lions of Nigeria. In Nigeria, there are just 2 populations of lions totalling 35-40. While this is good for the places that the lion has survived, this is highly unlikely to be able to survive long-term. With human assistance, and translocating lions regularly these populations might eventually recover.
There is one place where west African lions might stand a chance without human help and this is W-Arly-Pendjari (WAP) protected area complex that straddles Benin, Burkina Faso, and Niger and which holds 90% of West Africa’s lions. This is because all other populations are like that in Nigeria – to small to be capable of surviving longterm without human help. While the WAP complex can be lost amongst the brown on this map – if you look at the intersection of Benin Burkina Faso and Niger, you cannot miss it.
Importantly, this population is still 37% of the size of the Indian lion population. In other words, this is the last stronghold of the West African lion; the West (and central) African lion is one of the remaining relict populations of the Asiatic lion – the other one being the Indian lions of the Gir national park.
Should the Asiatic lion be renamed? It is usually referred to as the Indian lion, but with more than 1 in 4 remaining wild Asiatic lions living in Africa, this does not seem right. What is more, while over the last few decades West African lions have not done wonderfully, there is far more available habitat in West and Central Africa than there is in India, or indeed in Asia.
Perhaps more importantly, the Barbary lion, long thought extinct, appears to be the same species as the Asiatic lion and the West African lion. In other words, the Barbary lion was the genetic bridge between west Africa, and India. before its extinction, these two populations would have been permanently linked. What does this mean? Well, it is vastly simpler to move lions from one wild place to another than to train and release captive lions. If we can fortify the remaining West African lion populations, perhaps we can also allow some of these animals to be moved to other parts of the Lion range – thereby ensuring their long-term survival.
I have written about Bonobos in the past, I hope that readers are aware of this species. In brief, Bonobos (often known as Pygmy chimpanzees) are a separate great ape species. These two species split about 1 million years ago as the Congo river formed and became an impenetrable boundary between them intermixing again.
Found only in the DRC and the last of the great ape species to be discovered, Bonobos should be of great interest to humans.
Continue reading “In April, for only the second time a group of Bonobos torn from the wild was rereleased: future?”Around much of the world, as the various European countries expanded their empires, one of the first things that Europeans did, was to create reserves to protect the wildlife, and required the local people to move out.
In many of these places, the local tribes were forcefully thrown of their land, and begrudgingly given small areas often with little value compared to where they lived before.
Now there is a difficult issue: those people who are living their lives in the same way that they have lived for thousands of years, are often fantastic for the reserve. However, in many places these people will turn to harvesting the wildlife in a totally different way, leading to many local extinctions.
The Caspian tiger once lived in 12 countries, from the west in Turkey, to the east in central Asia. Seemingly, across this range, they did not have consistent populations but the tigers lived on the shores of lakes in the region, with 15-20 valleys being their strongholds.
On the whole, the Caspian tiger lived in relative harmony with humans up until the Russian invasion. The Russians brought with them, the custom of keeping livestock, which brought the humans into direct competition with the tigers. As a result, Russia started paying a bounty for every tiger killed. This was incredibly successful, such that by the 1940 they were exterminated. The hunting was banned in the 1940s but too late to save these tigers.
After this, the tigers former home was taken over and converted into farmland, so the few that survived the hunting, soon lost what home was left.
In the 1990s as Russia fell, WWF started working to help the ecosystem recover. As a result in the late 2000s a satellite analysis was carried out on the area, and one area stood out – a delta of the Lli river in Kazakhstan. It was found that if the prey base was first helped to recover (animals such as boar and deer) then this area could easily support tigers.
Now, it is true that the Caspian tiger went extinct 70 years ago. However, recent genetic analysis has shown that the Caspian and Amur tigers are not distinct enough to be classed separately – they are essentially one subspecies, with a large range. It is true that Caspian tigers tend to have had shorter fur, but tigers are able to adjust in this way, so tigers that are moved to warmer climates will grow less fur and be able to thrive.
Given Kazakhstan being the most advanced of the countries in the area, with relatively high living standards, they should be able to carry out the plan. The delay until 2026 is to allow time for the prey base to build up to sensible levels.
In liwonde national park, 4 species of vulture; all considered critically endangered have returned. What has prompted this? Well the reintroduction of lion and cheetah has retires some meat two be put out and this has attached the vultures.
The park is a little over 2000 square miles (5500 square km) and the cheetah population has reached 42.
Lion and cheetah were lost around 2000, and as a result the vultures left.
The problem is that was vultures are the main group cleaning up bodies, without them the bodies started and rotted. This was a perfect breeding ground for various illnesses that threaten the lives of both humans and livestock.
Farmers will often take revenge on livestock killings by poisoning the body. This usually like the lions, along with any scavengers that come along such as jackals and hennas.
However, it can have a decorating impact on vultures. Due to their way of finding near to scavenge, there can often be 20-30 vultures waiting while the lion eats – if a kill is poisened, it can kill every vulture for miles around.
Both lions and cheetah are missing from dozens of countries across Africa and Asia, places they historically roamed. While lions can cause more issues, cheetah cannot generally kill much livestock. As a result, there will be dozens of reserves where cheetah could return, allowing the reserve to start to operate more as it once did. Once this happens, tourists will start visiting and this leads to money which can help the rest of the reserves rejunivatiom. This in turn makes return of lions far easier, as assist from bringing in the funds to compensate livestock losses, it also brings in lots of money – allowing poor farmers to make more money and raise the standard of living for their family.
I wrote back in November about plans to move African cheetah from South Africa to India. Should you wish to read this original article, I have linked it below.
https://seeanimalswild.com/2021/11/17/south-african-cheetah-to-be-introduced-into-india/
There has been an update. The first batch of cheetah will be moved to Kuno reserve, in August, 5-6 Cheetah will be moved to Kuno reserve in the first batch.
Kuno reserve was supposed to be the place that Asiatic lions were due to be moved to before Gujarat claimed exclusive ownership – and therefore refused to translocate the lions. The fact that cheetah are being introduced to Kuno should not rule out lions following, though Gujurat is still behaving badly on this front.
What should we make of this? Well in theory, Iranian cheetah would be far better. Unfortunately the cheetah is doing so badly, that it would be impossible to translocate cheetah to India, without risking eliminating the cheetah in Iran. African cheetah are very similar, and I would argue that a similar animal is better than none filling this ecological niche.
The recovery of wolves bears and lynx over the last several generations in western Europe has been nothing short of astounding.
In the 1960s the population of the iberian wolf did not number more than a few hundred, yet now there are 2500. Similarly, bears got very low but now more than 300 roam – though this still has some way to go. The Iberian lynx was not heavily hunted, yet was still almost wiped out due to human introduced diseases wiping out most of the rabbits in Spain.
France destroyed its wolf population completely, though they are back, having crossed from Italy about 20-30 years ago. Bears were similarly almost wiped out, except a tiny relict population in the Pyrenes. Unfortunately, this population has not done well and is essentially only there because of bear translocations from further east. Similarly, Lynx were eradicated by 1900 though this has been reversed by reintroduction projects. There are a couple of zones where lynx are found (a reintroduction project in Switzerland returned them to part of france), However, there is not going to be more than 130 lynx in the whole country and the population does not seem to be growing.
Italy retained a wolf population, though in the 1970s there was only 70-100 left. Nowadays, 1000-2000 wolves roam the country, and it is roaming members of this population that seeded the population in France. 80-90 bears remain in Italy (the Marsican bear), and while this is a more healthy population than that in France, it is still not enough to be secure. Lynx were eradicated but have been reintroduced, though they are not thought to have established a population that would be secure longterm without continued translocations.
Scandinavia could in some ways be thought of as a strong-point for all three animals in western-Europe, though there are still views that are not helpful. The encouraging thing here, is that the wolf is able to return from Russia. There are no more than 500 wolves in this area, and Norway has a relatively strange view of the wolf, with human hunting elk very popular, wolves are seen as a nuisance and kept at a minimum. Norway has a similar view of the bear, with them being far more common in Sweden. Lynx are widespread in this part of the world.
Why should we champion the return of these animals? They have the capacity to rebalance environments, as well as allowing forests to operate properly – in the UK, as we are missing these predators, replanting forests are often hindered by deer grazing them to much. There are other reasons though. These animals can be a big tourist draw, allowing people to make a good income, often in places where there is little other economic potential. In the UK, return of wolves and lynx would save hundreds of human lives each year by reducing deer collisions on our roads.
Will their recovery continue? I hope so, though it seems to very much be an area where progress is two steps forwards and one step back.
Currently, 70% of the land in the UK is given over to agriculture. Of this, just 15% is used to grow crops for human consumption. A further 22% goes towards feeding livestock. The rest is given over to livestock grazing.
This means that we give over 44% of the country to livestock, and a further 15% of the country to feed the livestock.
If growing food in a lab does indeed take off, 59% of the UK would suddenly be freed up – lab grown meat done properly could have a near 0 carbon footprint, and can be created in close proximity to the shop that will sell it -further reducing or eliminating the transport carbon footprint of food.
Now, assuming that this is to happen we would still need to keep some livestock. This would be needed to harvest cells. Never the less, we could still see a reduction of more than 99% of the livestock and land required. I do not believe that I am the only person who would be far happier satisfying my desire for meat, without the climate implications or indeed the fact that animals have to die to satisfy it (I am not a vegetarian, but over the last few years we have made efforts to reduce our meat footprint).
This would free up more than 50% of the country. What could we do with this?
Well my argument is that this land could be given over to rewilding. With this amount of land, we could suck up vast amounts of carbon a year. 50% of the UK is roughly 120,000 square kilometres. Now roughly speaking, forest suck up 500g per square m per year, or 500 metric tonnes per square km. Therefore, the UK could suck up 60 million tonnes a year. Now it is true that this is not huge compared to our emissions and we might have some other uses, never-the-less I am sure that I am not the only person that is frustrated by the lack of wilderness in the UK. Even just 10% of the gained land being given over to rewilding could make great progress in returning wilderness to the UK.
The UK has plans to start reintroducing bison to the UK. While this is very exciting, these are large animals and when they are allowed to roam free they could hurt humans. This is highly unlikely for any one individual, but may occasionally cause significant injury when looked at as a whole.Â
Why do I bring this up? The main reason that wolves have not been reintroduced to the UK, is human fears. It is true that we would likely suffer low levels of predation of livestock, yet the main fear is of attacks on humans. While wolves can act aggressively towards humans on occasion, injury to the human is incredibly rare (the wolf will almost always run before the human gets close enough to be at risk).
Lynx is an even easier animal to suggest. There are no fatal attacks on humans as far as I’m aware, and as forest specialists they are even less likely to take sheep and wolves. What’s more, while a large links watching industry is likely to Spring up, these animals are incredibly hard to see. This means that without going to extreme lengths people are unlikely to encounter them and therefore be scared by them.
Beavers have been given the right to remain. Indeed genetically correct beavers (i.e. European beavers) are multiplying rapidly, and gradually spreading out from where they were first discovered on the River Otter in Devon, with the population thought to number at least 300-500. These animals are being reintroduced all over the place. The Tayside population in Scotland is thought number at least 1000 animals and these is spread across a large part of Scotland though they still have a long way to go. Beavers however, rarely threaten human life and while they can do some damage are easier to accept.
It’s thought that the UK population of boar number at least 4000, with between 1/3 and 1/2 of these living in the forest of Dean. A pair of boar can have as many as 30 offspring in one season- meaning that without regular culling the population could very rapidly explode. They are having very positive effects on woodlands in the areas that they exist, and my hope is that some of the animals could be moved rather than being shot. Boar unlike beavers can certainly be a threat to humans, though again will only hurt people when they feel threatened.
Other species like bears have had trials done, and likely would be far easier than lynx or wolves to live alongside. This is because as omnivores bears spend much of the year eating vegetation. It is true that some bears take to eating many sheep, but this is not common, and it is entirely possible to cull or move animals that take out this habit. Bears could also create vast tourism in areas that they live.
Animals such as pine martens should be given a helping hand. Locally extinct across much of the UK, they should be reintroduced to woodlands up and down the country. Apart from restoring a native mammal, the grey squirrel – an invasive animal which does much more financial damage each year than the pinemartin ever has, would be rapidly removed, this in turn could allow the red squirrel to start to repopulate the UK
I hope that by 2050 all these animals have thriving populations in the UK. If this was the case, then we would have rebalanced the natural world in the UK allowing it to thrive in a way that it hasn’t for centuries. Of course with precious little remaining wilderness we may find that we do not have space for anything more than a handful of some of these species. I believe even this would be of use.
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