My PhD

On the 7th July 2021 I had my PhD Viva – I passed with minor corrections which were mainly typos – I have now corrected all of these and re-submitted the thesis for final approval. I am now a Doctor!

Some of you may be interested in what I have written so I am making it available as a download pdf in case you wish to read it!

Rather like the situation on Dartmoor’s Commons my PhD may prove contested and controversial – either way here it is – I have told it as I have seen it.

To download my PhD press here.

Re-wetting and slowing the flow on Holne Moor

Went on a long walk yesterday around Holne Moor with one of the owners of the Common, Kevin Cox. It was a glorious day weather-wise and Kevin showed me some of the works that have recently been carried out as part of the Natural Flood Management project based around the Mardle and some of the Upstream Thinking interventions. Some of the works have been carried out by contractors and some have been implemented by the Holne Moor Commoners. Here are a few photographs to give you an indication of what has been carried out.

Willow dams installed in a former tin mining gulley
Willow sticks planted to create small areas of new woodland
Woody dams in a gurt
Timber dams
Looking down upon a re-wetted area of valley mire – I remember standing at that mire a couple of years ago with a couple of Holne Moor Commoners discussing the possibility of re-wetting this mire!
Recently installed dams slowing the flow and re-wetting the mire
This is what valley mires could look like in the future

An uplifting day, augmented by my first ever adder sighting on Dartmoor and a fly past from a male Emperor Moth.

Congratulations to all involved with this project, I know it has not been an easy path to this point but these co-operative works should act as an exemplar demonstration of what can be achieved to all across the moor.

Gorse fire near Jurston

I was just thinking yesterday that I was surprised that Dartmoor hadn’t seen a wildfire in this recent period of tinder dry weather and then last night ……..

So today I decided to go and have a look at the site. Compared to the February fire which I wrote about here this was a gorse fire and was much smaller. It would appear that the fire service were able to access the area as it is by a road and were able to contain it. Good work. I would estimate that this fire covered an area of around 4-5 hectares.

You can clearly see the blackened remains of gorse bushes and purple moor grass – referred to on Dartmoor, after its Latin name, as Molinia. This photograph is looking south towards Hameldown.

The conditions have been very dry in recent weeks and there was a reasonably cold winter from the north last night. Such a combination dries out the vegetation and makes it very vulnerable to combustion.

This is what the vegetation looks like immediately adjacent to the fire site, a mix of European Gorse and Western Gorse, interspersed this the dry lanky white leaves of Molinia. This area also contained quite a lot of heather bushes (Calluna vulgaris). The hill-farmers on Dartmoor describe vegetation like this as a huge ‘fuel load’.

A fire like this occurring in late April is unfortunate as many birds will have started to breed and many less mobile animals such as amphibians and reptiles are not quick enough to escape, I did find a dead frog but nothing else. Dartmoor was lucky last night, this fire could have been much more extensive had it been in an inaccessible location like the last one near Tavy Cleave.

An unfortunate incident but not a disaster in my view, given the rain today, I suspect fresh growth in the fire site will quickly emerge as many of the plants found here are fire resistant. It is also early in the breeding season so perhaps some species can try again.

The cause of this fire remains a mystery, I have seen some speculation that it might have been a portable BBQ as the tell tale scorch marks were found nearby on some short grass, maybe, but it was pretty chilly last night in Exeter, and it would have been even chillier at Jurston Cross – not ideal weather for a BBQ in my opinion!

With the rest of spring and summer ahead of us, more ‘wildfires’ on Dartmoor are a real concern so it is good to see that the DNPA are clearly warning the public of the risks and pointing out that open fires and BBQs on Dartmoor are prohibited ………..

Photo by Charlie Elder

English Pastoral – An Inheritance by James Rebanks

If you are interested in the future of our upland landscapes – then this is a really important book. It is the second book written by James Rebanks and follows on from his extremely successful and popular first work – The Shepherd’s Life (2015) which detailed the tradition and culture involved with being a Lake District sheep farmer. In all my talks and lectures on hill-farming on Dartmoor I use this Rebanks’ quote as it seems to capture the essence of how hill-farmers across the country view themselves.

Our farming way of life has roots deeper than five thousand years into the soil of this landscape. Taking my sheep down those lanes is what people have done here since the land was first settled. That is what these lanes are for, to let the little farmsteads access the mountain grazing. I am walking in the footsteps of my ancestors, and living a life they lived.

In his second book he describes his journey as he attempts to de-intensify his farming practices to bring wildlife back to his farm. The last 40 years or so has seen an era of conflict between hill-farmers and conservationists, the latter essentially blaming the former for unsustainable grazing regimes which have seen upland habitats and wildlife plummet in their abundance, quality and value. Hill-farmers, in their defence, argue that all they have done is follow government agricultural and environmental policy in an attempt to approach financial viability and produce food for the nation.

This is a timely book, farming and hill-farming in particular, are at a crossroads, we are about to leave the European Union, new trade deals have yet to be agreed, the Basic Payment Scheme which has subsidised farming in recent years is being phased out and a new and as yet unspecified Environmental Land Management Scheme (ELMS) is to be introduced to support farming in return for environmental improvements. It is a time of change and great jeopardy for hill-farming, but nevertheless there are opportunities and glimmers of hope for those who can read the runes.

The book is divided into three long but sub-divided chapters and it is beautifully written. The first chapter, Nostalgia, looks back to when Rebanks was a young boy and fell in love with hill-farming under the tutelage of his grandfather – a man deeply rooted in traditional hill-farming practices, at the point in time when new more intensive farming practices were becoming widestread, practices which Grandfather Rebanks rejected.

By the end of that year, though, I had fallen in love with that old farming world. My grandfather had achieved what he had set out to do: I was no longer a boy hiding from the farm; I was a true believer.

The second chapter, Progress, details his farming life as an adult, working for much of it with his father in an era when hill-farming was changing from the traditional to the modern. This period sees, for example, the introduction and widespread use of inorganic fertilisers, the switch from cutting hay to silage and the use of pesticides along with major changes to the farmland landscapes and their associated wild animals and plants. There are some interesting insights into how farming practices changed and how this impacted on the curlews that formerly bred in the small fields.

Throughout this chapter it is clear that both Rebanks and his father were unhappy about the impacts that their more intensive farming  practices were having on the land and its wildlife. There is a revelatory section where an old but traditional farmer Henry dies and his land is split up and sold to others, the soils in his fields are tested for nutrient levels and general soil health and it transpired his soils were amongst the healthiest in the district. His traditional methods of mixed farming and field rotations along with the use of animal manures had protected and enhanced his soils without the need for artificial fertilisers and lime.

My father found this news a revelation. It shook him, because it said something about what the new farming was doing to the land. The most traditional farmer in the district had the healthiest soil……. My father knew the truth lay in Henry’s soil.

Rebanks discusses how the quest for ever cheaper food has degraded the environment and made farmers price takers, whilst at the same time had distanced consumers from the process of food production and how land was being managed.

This was business-school thinking applied to the land, with issues of ethics and nature shunted off to the margins of consciousness. There was no room for sentiment, culture or tradition, no understanding of natural constraints or costs. The modern farming mindset didn’t recognise these external things as relevant. This was farming reduced to a financial and engineering challenge, rather than being understood as a biological activity.

And so, his quest begins to try and transform his farming practices to benefit nature whilst still producing high quality local food.

The science of what has happened is chilling, and the fact that the loss of nature is escalating is evening more terrifying. ….. As farmers we now have to reconcile the need to produce more food than any other generation in history with the necessity to do that sustainably and in ways that allow nature to survive alongside us. We need to bring the two clashing ideologies about farming together to make it as sustainable and biodiverse as it can be.

The third chapter, Utopia, sets out how Rebanks is attempting to reconcile these two clashing ideologies, by fencing off river and stream banks, ‘re-wiggling’ water courses, ceasing to use inorganic fertilisers, substantially reducing pesticide use, planting trees, re-instating hedges and by re-introducing Belted Galloway cattle to his landscapes. These are impressive changes and achievements and perhaps unsurprisingly are accompanied by a flourishing of wildlife and soil health on his farm.

Rebanks suggests that his farming friends ‘crudely’ divide into three categories: a third have begun to change their farming and are ‘committed to trying to be good ecological stewards’, another third are ‘open to change but have limited room for manoeuvre as they are in the financial realities of trying to run a profitable business’, and the final third are ‘deeply sceptical – or still true believers in the intensive post-war model of farming’.

James Rebanks is a significant figure, he is this country’s most famous hill-farmer, this book clearly shows that he is in the ‘public money for public goods’ camp and that nature can be successfully blended into the cultural landscapes narrative of a World Heritage Site.

This is a must-read book for everyone interested in our upland landscapes: conservationists, ecologists, policy makers AND hill-farmers. Dartmoor’s recent history is similar to that of the Lake District in some respects but different in others: the in-bye land has seen agricultural improvement and intensification but significant areas of its common land is now substantially under-grazed. I have consistently suggested to Dartmoor’s hill-farmers that they need to ‘follow the money’ as the new ELMS emerge, English Pastoral sets out one way to achieve that.

Should Dartmoor be a temperate Rain Forest or a cultural landscape? Discuss ..

I gave a 20 minute talk yesterday at Butterfly Conservation’s conference on the future of the south west’s uplands where I very briefly summarised the findings of my PhD research. I’m interested in why people disagree about the way that Dartmoor is managed and grazed and I’m looking at it from the perspective of the various stakeholder narratives. Is Dartmoor overgrazed or undergrazed? Should it be richer in wildlife? Should much of it be rewilded? Should the blanket bog, valley mires and wet heath be re-wetted? What about the historical landscape – should it be re-grazed so that the monuments become visible again within the landscape? What is to be done about the Molinia (Purple Moor Grass) jungle and the Western Gorse encroachment? What about the hill-farmers’ narratives? Lots of questions, lots of viewpoints and lots of disagreement.

My talk prompted this exchange on Twitter today following an initial tweet from Farming Wilder.

Followed by a response from George Monbiot – arguing that a temperate rain forest should be re-established.

But what of the existing wildlife interest?

A comparison of Dartmoor to the Amazon ….

The case for a varied but cultural landscape….

Is this the beginning of a compromise?

Nobody is actually happy with the status quo but …

Not all Dartmoor hill-farmers will agree with this but some evidently do …

An interesting social enterprise …

With the parlous state of hill-farm economics, the spectre of Brexit, continuing climate change and atmospheric nitrogen pollution, the status quo is untenable and change and new ideas are needed. This exchange suggests a possible alternative, there are of course many others such as a 21st century return to ‘Levancy and Couchancy’ (only keeping the number of animals on the Commons that you can feed over winter from the meadows on your home farm –  growing hay and silage organically) and a new Transhumance (summering of animals on the Commons and then ‘finishing’ of them in the lowlands).

To be continued ……

 

 

Heather beetle damage on Dartmoor 2019

I have been very surprised how much Heather Beetle damage there is on Dartmoor this year. The Heather Beetle larvae hatch in June and then feed on the young leaves and shoots. As a result the affected parts of the heather plant turn orange brown.

Heather Beetle damage. It is very characteristic and eye catching.

Last week I walked from Rowtor on Okehampton Common up the military road to Observation Post 15 and then down to Ockerton Court. All the way along the track there are signs of extensive damage to the heather plants – I would estimate that over 90% of plants are affected.

Work carried out in the north of England and in Scotland suggest that the larvae are active until the end of August when they drop down into the litter and pupate into adult beetles. Despite three separate searches on Okehampton Common, the Forest of Dartmoor and Headland Warren Common I only managed to find three larvae and one adult beetle.

Here is a Heather Beetle larvae on Okehampton Common eating the few remaining green leaves of the plant.

I suspect that the absence of larvae and adults during my searches in the first week of August means that the larvae have already dropped into the litter and are beginning to pupate – as a result larvae and adults are not visible. However the very extensive areas of damaged heather indicates that they have been very active in June and July.

It is possible for the heather to recover from this attack and I will be monitoring it to see if it does. However parts or all of the heather plant can be killed. When this happens the shoots turn from orange brown to grey.

This is mature heather at Ockerton Court which has been killed by Heather Beetle

In this image the areas of dead heather (darker brown bits) are being over run by Purple Moor Grass (Molinia caerulea) – the bright green shoots of this year’s growth and the light brown leaves from last year. Molinia is unable to replace heather whilst the heather is alive but can and does do so when it is dead.

Heather Beetle is a seriously under-recorded species on Dartmoor – the National Biodiversity Network database has just one record and the is from Fingle Woods and not from the high moor!

There is clearly a need to gather more records ….

There is anecdotal evidence nationally that Heather Beetle attacks are getting worse and it has been suggested (based on research from the Netherlands) that the severity and frequency of Heather Beetle outbreaks is linked to the levels of atmospheric pollution – particularly nitrogen levels.

Dartmoor receives high levels of nitrogen deposition as a result of its high rainfall – Natural England have reported that Dartmoor receives 24kg / ha / annum of nitrogen (as NOx) which is damaging the blanket bog and mires. This high level of nitrogen deposition may also be responsible for the high levels of Heather Beetle damage.

Heather Beetles are a natural part of the moorland wildlife community and historically damage to heather was limited except in the ‘outbreak’ years. Last year when I was walking the Commons in July I also noticed extensive areas of affected heather – at this point in time heavy attacks appear to be frequent – maybe even annual.

There are implications for wildlife, conservation and hill-farming as a result of these serious Heather Beetle attacks.

  1. The heather plants themselves are either killed or remain stunted
  2. The species of wildlife which feed on heather shoots are also impacted – this includes moth species such as the Emperor Moth and the Fox Moth, whose hairy caterpillars are important prey items for one of Dartmoor’s iconic and successful birds – the cuckoo.
  3. Heather has long been a conservation indicator for the condition of Dartmoor’s Commons and historically grazing levels were reduced significantly to reduce overgrazing pressures to conserve heather.
  4. Heather is also a winter food for sheep on the Commons, if the amount of heather generally is significantly reduced as a result of Heather Beetle attacks it put pressure of the remaining plants that have survived.

Ironically it is thought that the severity and frequency of Heather Beetle attacks has increased because the nitrogen has made the young shoots and leaves more nutritious, it is also reported that sheep preferentially graze the new shoots too for the same reason.

There is a dearth of information on Heather Beetle issues on Dartmoor but from my own observations this year and last it is a potentially serious and widespread problem. However it would also appear that the problem is not universal across the moor. I searched for it in the heather stands around the Warren House Inn  and found Heather Beetle attacks to be minor – perhaps this level of damage is the natural level – whereas the levels seen on Okehampton Common, the north part of the Forest and on Headland Warren Common are the outbreak levels.

It seems to me that there is a clear need to better understand the Heather Beetle situation on Dartmoor, this would be in the interests of Natural England, the Dartmoor National Park Authority and the Dartmoor Commoners Council. The time to survey for the impacts of Heather Beetle is July and August. Maybe a bit of ‘Citizen Science’ could come to the rescue?

I would also be interested to hear from people who have found the characteristic orange brown stands of heather this year on Dartmoor.

I’ve written before about Heather Beetles and this link takes you to my blog which contains further information and some references you can download.

A Black Fox Running

I was passing Waterstones in Exeter on Saturday and saw a window display for this book.

If you love Dartmoor and wildlife I suspect that this book is for you. I’m halfway through it and am spell bound.

Here is what Waterstones have to say about it – it will give you an idea of what to expect .

A beautiful lost classic of nature writing which sits alongside Tarka the Otter, Watership Down, War Horse and The Story of a Red Deer

This is the story of Wulfgar, the dark-furred fox of Dartmoor, and of his nemesis, Scoble the trapper, in the seasons leading up to the pitiless winter of 1947.

As breathtaking in its descriptions of the natural world as it is perceptive its portrayal of damaged humanity, it is both a portrait of place and a gripping story of survival.

Uniquely straddling the worlds of animals and men, Brian Carter’s A Black Fox Running is a masterpiece: lyrical, unforgiving and unforgettable.

The 25 year Environment Plan – the wait is over

After months of waiting the Plan has finally been published and launched by the Prime Minister. So ….. has the wait been worth it? Of course this is just a plan BUT if it is delivered an awful lot to do with the environment will change for the better. There will of course be those who say it doesn’t go far enough here and opportunities have been missed there – they will probably be right too. BUT, my goodness who would have thought a plan such as this would have been published during the Paterson or Leadsom eras? I’m not going to systematically review the document I’m just going to pull out a few bits and pieces that caught my attention and made me smile.

You can download and the the 25 year plan here and I recommend you do 

To start with I wonder whether the cover of the report contains a Defra joke? This is Mam Tor in the Peak District with the sun rising in the background (at least I assume it is rising). It is owned by the National Trust who are developing plans to encourage hen harriers and peregrines back into the area. A new dawn is breaking …. hang on …. that was somebody else.

Back to Gove, he repeats in his introduction this –

We will support farmers to turn over fields to meadows rich in herbs and wildflowers, plant more trees, restore habitats for endangered species, recover soil fertility and attract wildlife back. We will ensure broader landscapes are transformed by connecting habitats into larger corridors for wildlife, as recommended by Sir John Lawton in his official review.

In the main report we are told again that subsidies are on the way out.

£3.2bn is spent in the UK under the CAP. £2.59bn of this is spent under ‘Pillar 1’ – the ‘basic payment scheme’ (BPS). This pays farmers according to the amount of land they own, rather than the outcomes they achieve. It concentrates money in the hands of those who already have significant private wealth, without improving environmental outcomes.

And that the ‘greening’ measures have failed and that only a fraction of the money has been spent on things that make a difference.

There have been efforts to improve this by ‘greening’ one third of BPS payments – but scholars have recently found these to be largely ineffective. Just £0.64bn – 20% of the total – is spent on environmental stewardship programmes under ‘Pillar 2’.

The principle public good ….. that is progress!!

After a period of stability to ensure a smooth transition, we will move to a system of paying farmers public money for public goods. The principal public good we want to invest in is environmental enhancement.

OK nothing specifically about uplands, hill-farmers or Commons but Gove covered them in his OFC speech last week – see here. These topics will be specially covered in the Agriculture Command paper due in the Spring and all will be well! Hill-farmers will be supported and the uplands will be restored.

Incentives ….. and ….. the ‘polluter pays’ – I never thought that I would read that regarding fertiliser and pesticide usage

We will introduce a new environmental land management system to deliver this. It will incentivise and reward land managers to restore and improve our natural capital and rural heritage. It will also provide support for farmers and land managers as we move towards a more effective application of the ‘polluter pays’ principle (whereby for costs of pollution lie with those responsible for it).

Here is the strong influence on Government that the Natural Capital Committee has had. Before the NCC ‘externalities’ were just jargon from economists but now it looks like we will all be using the word to reduce pollution.

Farming can be a powerful force for environmental enhancement but it currently generates too many externalities such as emissions from livestock and pollution from fertilisers and pesticides. Overall, farming is now the most significant source of water pollution and of ammonia emissions into the atmosphere in the UK. It accounts for 25% phosphate, 50% nitrate and 75% sediment loadings in the water environment, which harms ecosystems.

Finally a clear and not tacit admission that atmospheric pollution harms soils and alters vegetation.

By ensuring fertilisers are used efficiently, we can cut the air and water pollution that harms public health and the environment, and reduce greenhouse gas emissions. Poor storage of manure and slurry can lead to the release of harmful chemicals and gases such as ammonia (in 2015, more than four-fifths of ammonia emissions in the UK stemmed from agriculture). This can cause acid rain, combine with pollution from traffic and industry to form smog, and harm soils and vegetation.

A clear indication that peat bogs will be conserved and managed better in the future.

Our peat bogs and fens are important habitats that provide food and shelter for wildlife, help with flood management, improve water quality and play a part in climate regulation. Most peat soils support ecosystems that are sensitive to human activities including drainage, grazing, liming and afforestation. This makes them susceptible to degradation if poorly managed.

If I were still working at Wicken Fen on the National Trust’s Vision or the Wildlife Trust’s Great Fen project I would be very excited about this – opportunities, opportunities, opportunities.

Over the last 200 years, we have lost 84% of our fertile peat topsoil in East Anglia. The fens there could lose the remainder in just 30-60 years given current land management practices and a changing climate. In view of this, we intend to create and deliver a new ambitious framework for peat restoration in England.

Habitat creation on a grand scale …

Through changes in the way we manage our land, we will develop a Nature Recovery Network providing 500,000 hectares of additional wildlife habitat, more effectively linking existing protected sites and landscapes, as well as urban green and blue infrastructure.

Five years ago commissioning a review into National Parks would have been a recipe for their further emasculation – this can only mean they are going to be strengthened and properly funded! Who to chair the review? Dame Fiona Reynolds would be a good choice in my view.

The UK’s first National Parks were created by an Act of Parliament in 1949 following the government’s 1947 Hobhouse Report, which remains the basis for most protected landscape designation in England today.

Now, 70 years on, the Government will commission a review for the 21st Century. This will consider coverage of designations, how designated areas deliver their responsibilities, how designated areas are financed, and whether there is scope for expansion. It will also consider opportunities to enhance the environment in existing designations, and expand on the existing eight-point plan for National Parks to connect more people with the natural environment.

To my eyes much of this plan looks excellent, of course it will only be effective if things happen – that is the next stage.

This tweet which I posted earlier sums up my feelings

There is also an annex which was published alongside the main report – this is also very good – it is full of useful data with url links to the sources. You can download the annex here.

I can’t see the Defra joke though in this image – can you?

Giant Horsefly in Exeter

Last night I found a Dark Giant Horsefly (Tabanus sudeticus) on the wall of the Devon and Exeter Squash Club. This is the largest horsefly in Britain and they don’t get any bigger anywhere else in the world including the tropics.

The body is 24mm long – the orange base to the antennae and dark markings on the abdomen are diagnostic. This is a female – they have gaps between their eyes. In the males their eyes touch.

I’m not sure what it was doing at the Squash Club, I’ve normally seen this species in wild remote places like the Highlands, the Lake District and Dartmoor. I wonder whether it had been affected by yesterday’s heavy rain and took shelter before setting off again in search of cattle and horses.

Here is a photograph of the same species – one I took on Dartmoor a few years ago with a pound coin for scale

This is the same individual showing its mouthparts – it is only the females that bite – little reassurance though as this is a female!

This is the national distribution of the Dark Giant Horsefly – not very common