‘Sky islands’ in Africa are producing more new species than anywhere else

Sky islands like this one Mount Lico in Mozambique

Sky islands are found across much of Africa. Our experience of sky islands, occurred within the Udzungwa national park in Tanzania. This national park protects a large portion of the Eastern arc mountains. – a chain of mountains which run across Eastern Tanzania.

Africa started drying out around 5500 years ago, and much changed at this point, including a great expansion of the Sahara. However, what is relevant here, is that in many parts of the continent, this caused the rainforests to retreat. More rain falls on higher ground, so you were left with a situation where the tops of hills and mountains remain forested, but the valleys become savannahs. Perhaps one of the most notable effects of this, was to split the worlds mountain gorillas into two populations, one in the Bwindi impenetrable forest in Uganda and the other in the Virunga ecosystem. At their closest point, these two protected areas are only 20km apart (though driving between the two are likely to take longer, as visitor facilities are not at these points). Unfortunately, this space between the two areas has a large human population. This means that the two mountain gorilla populations were stuck on their respective mountain homes, relatively close together, but with no way to cross the gap between.

Not researched until recently, there is a strip of mountains that runs from northern Mozambique to Malawi’s Mount Mulanje. As with the eastern arc mountains, rainforest was preserved on these peaks. These were finally given scientific attention by an internatiional team in the South East Africa Montane Archipelago study. While archipelagos are usually used to refer to a group of islands, it seems apt here. Among these mountains, there are around 30 fragmented pockets of grasslands and evergreen forests that have been largely cut off from each other.

This is perfect for housing unique collections of species, that have found themselves cut off from other habitat that they once roamed. This study, identified 90 species from amphibians(11), reptiles(22), birds(3), mammals(4), butterflies(39) and freshwater crabs(6), alongside 127 species of plant, not found anywhere else on earth. These sky islands are even being considered for their own ecoregion.

Big or small, it is important to protect these little ecological islands, and it should be possible to have tourists visit to give an extra income to locals.

Electrical and heat battery news roundup

In Finland, a so-called sand battery (it is actually full of crushed soapstone) has been built, which is capable of storing around 100MW of heat. The crushed soapstone is a by protudct of a fireplace production factory nearby. It is true that this heat battery is large, with a height of around 13m and width of 15m, but it can in theory be buried in the ground. It takes 2000 tonnes to fill this heat battery, but this is just 40 waste trucks worth.

It will serve as a thermal battery, with pipes running through it. It can be heated in the Summer when there is cheap or even free power, and then water run through pipes in the material can extract the energy in winter, powering a district heating network – greatly reducing the emissions from heating houses in the whole area (it is estimated that it will reduce emissions by 70%)

The Soapstone leftover, was a wasted product, and before was just thrown away, so this is a far better use. This “sand” battery can hold heats of around 500 degrees for months if required, and is thought to completely eliminate the need for oil in the network heating system. it equates to roughly 1 month of heating requirements in summer, and 1 week in winter. Costing around $200,000, compared to $1,600,000 for the equivalent lithium battery, it is a good deal. While it is true that it would take around 30 of these to keep the town going for a year and it only supports 100 houses and a public swimming pool, but there is huge quantities of similar waste created around the globe, and therefore is capable of doing far more than one would think.

Simulations of the same idea, in Seoul have suggested at up to 39% savings. It is thought, that as the deployment of solar increases, there will be huge amounts of excess power to be pumped into things like this. Some countries have wonderful quantities of excess electricity in the summer, and while we need to ramp up the quantity of solar wild and other zero carbon electricity, this gives us a route to a zero carbon world.

UK scientists created the worlds first diamond battery, capable of giving power for thousands of years. It is made from synthetic diamonds, which contain a radioactive element called carbon 14. The battery makes electricity from this radiation, much in the way that solar panels work. This battery would still be at 50% power after 5000 years. From devices that need powering in your body, to deep in the sea or in space.

At the end of their lives, these batteries can go back to the manufacturers to be recycled. There is much work being done on this, not least looking at other radioactive elements, to increase the power output.

Carbon nanotubes store triple the energy of lithium batteries. New research shows that twisted nanotubes can store high densities of energy – triple that of lithium weight for weight. It is thought that these could power things like medical implants. Of course, this is great, though only adds to the potential long list of things that nanotubes can do if we can learn to reliably create them in the future. In bigger sizes, it is calculated that these carbon nanotubes can store 15,000 times more per unit mass, than steel springs.

These are both areas which I write on, regularly, so check back for more news. I should also note, that these roundup articles should allow a return to focusing on wildlife rather than clean tech soon.

Pine marten roundup

For any readers who do not know what a pine marten is, the above will give you an idea. It is an arboreal predator (that is, it hunts in the trees). There are a total of 8 species of marten across the world. Historically, this was the second most common predator in the UK, with only the fox being more common.

Unfortunately, its habit of taking chickens lead to it being hunted ruthlessly. At the current time, it hangs on in Wales, and has a significant population in Scotland. In Ireland, the recovery is far further along.

In the UK, one of the reasons that we miss this little predator, is its impact on grey squirrels. Unlike the pine marten, the grey squirrel is not native to the UK, and its presence does much damage, from its impact on trees, and other plants, to the fact that it carries a disease which wipes out the reds rapidly (so they are incapable of living alongside each other). This is a species which I have followed closely, and while other matters have stopped me blogging on this species as often as I would like, it has not stopped me from reading about it, so you will find summaries of a variety of stories below.

 

 

Reintroduction project in Dartmoor: 15 pine martens were released in secret locations within Dartmoor in September. A total of 7 conservation organisations have been involved in this translocation. It is a total of around 150 years since pine martens were last in the area, but the translocated individuals are settling and slowly dispersing across the landscape.

To the right you will find a tiktok video which will give you details on this reintroduction.

@woodland_trust Pine martens are back in Dartmoor! 🎉    This conservation success story is the work of The Two Moors Pine Marten Project which we’re a partner of. 🌳    Site manager David Rickwood explains more. 📽    Learn more at 👉 twomoorspinemartens.org  @National Lottery Heritage Fund   #woodlandtrust #wildlife #britishwildlife #wildlifetok #pinemartens #dartmoor #conservation ♬ original sound - Woodland Trust

While there is no idea where the pine martens came from, they appear to be doing well, and as the video shows, are breeding. While they have not been there long, so there is little evidence yet, it is highly likely that the pine marten arrival will be bad for local grey squirrel populations (a non-native squirrel which does much damage to UK woodland). This is an area of excitment and should be followed closely.

Pine marten spotted on Longleat estate

Pine marten caught on camera trap in Longleat estate in Wiltshire. It is unclear where this individual came from, lying half way between the forest of dean and the new forest (but far from both), but it is thought it has arrived naturally. While red squirrels would not be able to reappear in this part of the country, without help, as all surrounding areas have grey squirrels, should the pine marten survive, it is likley to greatly impact the local popualtion, and create an island, into which red squirrels could eventually return.

Pine marten in the forest of dean

Pine marten were translocated from Scotland into the forest of dean, beginning in autumn of 2019, when 19 were introduced, and a further 35 joined them in the next 2 years. Last summer, there was an estimate of 60 living in the forest, which while not a big increase, it has not fallen.

While the forest of dean covers just over 200 square miles, it is thought that 60 is roughly the carrying capacity. That suggests that the pine martens in the forest of dean need roughly twice as much space as elsewhere, so time will tell if the population can grow beyond this level. Still, it seems likely that this number of pine martens should be able to eradicate the grey squirrel, or at least greatly reduce its number in the area.

The below video shows 3 cubs from around 4 years ago.

 

Pine marten in the forest of dean

Research is being done on whether pine martens can live in timber forests – which account for a lot of forest in Scotland

Some simple changes may well allow timber and pine martens to flourish alongside each other. Across 1 woodland, a number of nest boxes have been added, which appears to be helping. The plantations are also looking at letting some older trees stay standing, as these are where cavities appear, which is the pine martens natural home. This research is being carried out in the forest of Ae and around Castle O’er.

Pine martens have turned up in a London cemetery, in area of England where they have not been seen for 150 years 

The Zoological Society of London ZSL (London Zoo)  already had a project in the area with remote cameras, as it is a stronghold for the hedgehog (unfortunately, another species with a horrific decline in the last 20-30 years). It was just one (and this was in 2022, so may well be gone), but it is exciting that such a small area can house an animal like this.

The Forest of dean, is 80 miles away, which is the nearest population, so it is thought that this might have to be the result of an illegal translocation (they are being translocated, but should be done by professionals, with checks and more.

Pine marten recovery is further along, and helps understand how it will work in England, particularly in cities (not the safe zone once thought)

 Once almost extinct, for similar reasons in the UK (habitat destruction, and persecution) in 1976 they were given legal protection, and at the same time, forestry started to expand once again. The pine marten is how living in around 45% of Ireland.

The red squirrel is recovering as a result. There was a fear that grey squirrels would survive within cities, as pine martens are generally to shy to venture into even large parks within cities. However, what has been found, is that the abundance of squirrels in cities is a mirage – there are only sustained by populations outside the city, therefore, should places like the green belt around London get settled by pine martens, it is likely that the London squirrels would disappear within a few years.

Similar to elsewhere, pine martens have now also been introduced to the Lake district.

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”

The EU restoration plan was postponed in March, yet passed in August – what will it do, and will the UK do something similar?

There is still large areas of wildernesses in places like Romania, but this needs to spread across the continent.

What will it do?

  • Restore at least 20% of the EU’s land and sea areas by 2030 
  • Restore all ecosystems in need of restoration by 2050 
  • Set legally binding targets for nature restoration in terrestrial, marine, freshwater, and urban ecosystems 
  • Maintain and increase urban green space and urban tree canopy cover 
  • Restore at least 25,000 km of rivers into free-flowing rivers by 2030 
  • Plant at least three billion additional trees by 2030 

This plan was dropped in March as a result of Hungary blocking it, as well as Austria and a variety of other groups. It is unfortunate, that often in order to meet an agreement, the environmental rules are often watered down so much as to become meaningless. It was cleared, after Austria changed its mind (it should be noted that the Hungarian MEPs were in favour and it is only the Hungarian government that got in the way – as they often are; unfortunately the leader of Hungary Victor Orban is not helpful, and is often the block for the EU. Whether this will change in the near future is anyones guess.

Still this will have to be implemented across the continent to be useful. Having said this, should it be successful it is likely to have a big impact.

The livestock lobby is fighting against lab-grown meat this is why we must not let them win

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.

Orangutans climb incredibly high – no space for acrophobia

Borneon orangutan mother with her offspring – photo credit stockcake (Photo by <a href=”https://stockcake.com/i/orangutan-treetop-rest_758559_866654″>Stockcake</a>)

Life is hard in the Indonesian rainforest – compared to Africa and South America, there is very little to be found to eat (except in specific areas. As a result, orangutans become solitary, with the only time they are seen together is a mother with young, or a courting couple. Another problem, is demonstrated here – there is so little food to be had, that every food opportunity has to be realized. This has meant that orangutans have become the best climbers (followed by Chimpanzee and then Gorilla), as where ever the food is, it needs to be accessed.

It is true, that with tools, humans can become even better climbers (as can be seen from the image), which is taken from further up the tree than the orangutans have even climbed.

Continue reading “Orangutans climb incredibly high – no space for acrophobia”

Iberian wolf

Iberian wolf

Restricted to the Iberian peninsular, this population, like many other European wolves hit a minimum back in the 1970s, we=here their population fell to just possibly as low as just 100, certainly no more than 500. Thankfully, this population has been allowed to recover, and is now thought to number between 2500 and 3000, though there is a great deal more space for further recovery.

Golden Jackal found in France for the first time

Golden jackals are not native to France, probably as a result of of the presence of wolves. Unfortunately, wolf populations have dropped so low, that their presence is not stopping the spread of animals like this.

In this instance, the female was too young to have arrived on its own, suggesting that not only are golden jackals present, but they are breeding.

We will have to watch this space, and see what is happening. Will the recovering wolf population stop the spread, or are golden jackals going to become a permanent part of west Europe’s fauna?

To read more about golden jackals visit our golden jackal page here

Agile Mangabey

Agile Mangabey

The agile mangabey is an Old World monkey of the white-eyelid mangabey group found in swampy forests of Central Africa in Equatorial Guinea, Cameroon, Gabon, Central African Republic, Republic of Congo, and DR Congo.

Until 1978, it was considered a subspecies of the Tana River mangabey. More recently, the golden-bellied mangabey  has been considered a separate species instead of a subspecies of the agile mangabey.

Similar to other mangabeys, they are active during the day. Although generally tree-living, they do spend a significant portion of their time (12–22%) on the ground, especially during the dry season. It is often heard first, and males have a loud, species-specific call that is believed to be used to space themselves out – in a similar way that wolves operate with howls. Other calls are also used to maintain group cohesion and warn of predators. Group size can be as high as 18 members, led by a single dominant male. Group meetings can be friendly and may involve exchange of members.

Adult males not in groups often travel singly.

Fruit makes up a major portion of the agile mangabey diet. They are known to eat at least 42 different species of fruit. Their tooth structure and powerful jaws allows them to open tough pods and fruits that many other monkeys can not access. Agile mangabeys eat from a number of dominant swamp-forest trees, including Irvingia, Sugar plums when they are fruiting. They also eat fresh leaf shoots from Raffia palm when fruits are scarce. Grass and mushrooms, Invertebrates, bird’s eggs and some vertebrate prey, such as rodents.

As we find links, to help you book to see this species, the links will be added at the bottom of the page.

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