A to Z: a multiplicity of Ms

M

MAGNETITE

As mentioned previously, in the 1850s a seam of iron rich ironstone was discovered in Rosedale. Also known as lodestone, magnetite had long been a valued mineral because of the amount of iron ore it contains, so much so that it is often magnetic.

Rosedale - copyright Colin Dilcock, NYMNPA

The discovery in Rosedale led to the rapid development and expansion of the mining and calcining industry there and in the wider area. There were great expectations …

“Professor Phillips delighted and informed the company by his description of the ‘Ironstones of Cleveland’ … The Rosedale band at its richest points, yielded 50 per cent [ore] and in many places 42 per cent. The Rosedale stone was magnetic and contained phosphorous, it was not merely magnetic, but it had an inherent magnetic polarity … There must spring up over the Cleveland district, through the working of the iron ore, great towns, with a numerous and active population; and, as a result, the moorland would be brought under cultivation and this once dismal tract of 20 square miles would rejoice in all the material means that could promote human happiness and prosperity…”

From a meeting of the British Association for the Advancement of Science at Leeds, as reported in the Manchester Courier and Lancashire General Advertiser, 2 October 1858.

However the actual magnetite seam was soon exhausted leaving the industry exploiting poorer ironstone and slowly declining into the 20th century. The magnetite proved to be rather a flash in the pan.

This Exploited Land of Iron logos

MESOTROPHIC LAKES

There are very few natural lakes in the North York Moors due to geology and climate, which makes Lake Gormire on the south western edge of the National Park even more remarkable. In the last Ice Age a hollow was formed by a meltwater channel between the edge of the moving Vale of York ice sheet and the edge of the North York Moors gritstone escarpment. The channel damned up and the lake left behind divided into two bodies of water – Gormire and the much smaller, Buttermere.

These are mesotrophic lakes – containing a narrow range of nutrients in medium concentrations. This type of lake chemistry is rare and becoming rarer as lakes are effected by artificially increased levels of nitrogen and phosphorus and so become eutrophic. Lake Gormire is surrounded mainly by semi natural woodland and fed by springs and so largely circumvents the risks of artificial diffuse pollution and nutrient enrichment.

Because of their chemistry Mesotrophic lakes can support higher levels of diversity of macrophytes (algae), aquatic plants, invertebrates and fish. The fen (‘mire’, ‘mere’) plants around Gormire/Buttermere reflect the acid soil, so there is Marsh cinquefoil Potentilla palustris, Common skullcap Scutellaria galericulata and Tufted loosestrife Lysimachia thyrsiflora, as well as Bog bean Menyanthes trifoliata and Water horsetail Equisetum fluviatile. Gormire is particularly popular with noisy water birds, mating toads and freshwater leeches, all exaggerating the primeval sense inside this Ice Age hollow.

Lake Gormire from Cleveland Way, north of Sutton Bank - copyright Mike Kipling, NYMNPA

Lake Gormire and the area around it is a designated Site of Special Scientific Interest. The cliff slope woodland above Lake Gormire is the Garbutt Wood Nature Reserve managed by the Yorkshire Wildlife Trust.

MILKY WAY

The Milky Way is a galaxy of billions of stars and planets sometimes partly visible to the naked eye as a milky looking band of light in the night sky.

Milky Way and Perseid Meteor Shower Sutton Bank - copyright Russ Norman Photography.

We’re in the middle of the Dark Skies Festival 2017 here in the North York Moors National Park. The dark skies over National Parks make it easier to see the lights of the galaxies around us. This February is particularly good for viewing Orion and also a very bright Venus.

February 27 1920   The mysterious stars

…Later in the evening a half-moon shone in a filmy sky across which, from S.E. to N.W., ran a Noë-ship of thin white clouds. A soft mist hung in the far valleys, but the nearer moory slopes loomed clearer. In the pastures the furze bushes were startlingly like huge black beasts grazing on the rimmed herbage. No sounds broke the utter silence of the moonlit hills; the wind had almost died away, but as I stepped over the little rill from Thunderbush Farm [Commondale], I heard its faint, musical ripple.

The ever-mysterious stars flashed through the interspaces of the filmy clouds and circled silently above the dim earth. Sirius flashed due south whilst mighty Orion hung high above the moor edge, his glory somewhat dimmed by the moon. What would life have been without the stars?”

A Man of the Moors: Extracts of the Diaries and Letter of Frank Elgee.

MINI-BEASTS

We use the term mini-beasts for the tiny invertebrates that go without notice until they’re looked at under the microscope and a menagerie of marvel and dread is revealed.

Identifying and counting river invertebrates is a very useful way of assessing the health of a river at a particular spot. Certain species indicate good water quality and others, poor water quality; a change in species/numbers indicate a change in water quality e.g. a pollution incident. There is a national programme of riverfly monitoring led by the Riverfly Partnership. Results are recorded centrally and indications of a potential incidents are reported to the Environment Agency. The National Park run a number of local Riverfly Monitoring Workshops for volunteers – the next one is 1 March.

MOSCHATEL Adoxa Moschatellina

Moschatel is a perennial unobtrusive plant which likes the damp, shady conditions found along woodland edges and on shaded hedge banks. It flowers between March and May, producing five lime green flowers on top of a leafless stalk, four flowers face outwards and one flower faces upwards, forming a cubic which has led to the plant’s other common name – Townhall Clock. The plant grows along the ground through rhizomes with the flower stalks growing up through its leaves to only c. 15cm tall. It is a common plant but easy to miss – look out for it in early spring before it gets hidden by taller plants.

Moschatel at Sieve Dale. Copyright Ami Walker, NYMNPA.

MOTTE AND BAILEY

Historic England suggest there are over 600 motte castles or motte-and-bailey castles in England. These were early medieval fortifications built by the Normans and made up of a large mound of earth/rubble (the ‘motte’) with a defensive palisade and tower on top, and an embanked enclosure with other buildings (the ‘bailey’) adjoining.

A motte and bailey castle could act as a fort when required as well as providing the residence for the local landowner/representative of the King and a centre for feudal power. They were often built on high ground to take advantage of the extra height to dominate the landscape and overlook access routes.

Soon after the beginning of Norman rule in England came the ‘harrying of the north’ – a military campaign to overcome and overwhelm the population in the north of the country and hammer home the idea that the Normans were here to stay. The new motte and bailey castles were a highly visible tool for holding that ground and reinforcing that message.

By the 13th century castle design had moved beyond the basic motte and bailey. Although the timber structures have largely gone, the earthworks are often still traceable in the landscape, and rubble mottes and the remnants of stone towers remain. Many are scheduled. Examples in the North York Moors include Hood Hill, Easby motte, and Foss Castle.

MOTHS

Moths are often considered the poor cousins of butterflies in the Lepidoptera family. The most obvious difference between butterflies and moths are that the former are active during the day whereas moths are mostly (but not all) nocturnal, feeding on the nectar of night blooming/night scented plants. Another difference is that when resting, butterflies usually close their wings whereas moths leave theirs open and this makes it easier to examine their intricate patterning and refined colouring. But as with most ecological questions – what is the difference between butterflies and moths? – there is no obvious answer and always an exception. Moths can be just as colourful, just as beguiling and just as in peril, as butterflies. For more on moth conservation see here.

Shandy Hall, Coxwold has become a location for moth study and reporting over the last few years. The gardens there provide a semi-natural/cultivated habitat for many species – over 400 different species have been recorded in the gardens to date.

Previously on the North York Moors A to Z … A, B, C, D, E, F, G, H, I, J, K, L

Battle of Byland: considering the evidence

Graham Lee, Senior Archaeological Conservation Officer and Ed Dennison, Ed Dennison Archaeological Services Ltd  

Roulston Scar Iron Age Hillfort is a scheduled site in the south west corner of the National Park. Previous investigations by the Landscape Research Centre (in 2013 and 2015) on the north-eastern rampart of the hillfort located a substantial palisade trench cut into the top of the back of this prehistoric rampart. The sharpness of the buried remains and the increased organic nature of the fills suggested a short period of re-use and a date within the historic period for this – it was clearly much later than the established prehistoric use of the site. But no material evidence was recovered which could provide even an approximate scientific date for this significant addition to the defences of the hillfort.

The known event in the locality that could best explain such a major re-fortification of the defences is the Battle of Byland, which took place on 14th October 1322 between the forces of Edward II and Robert the Bruce, resulting in a victory for the Scottish army.

So as a follow-up to these initial investigations, the National Park commissioned archaeological surveyors (Ed Dennison Archaeological Services Ltd), during the first part of 2016, to record the form of the supposed prehistoric earthworks in close proximity to Roulston Scar in the hope that further relevant information would be revealed. Both these earthwork dykes, the Casten Dyke South and the Casten Dyke North, have anomalous features which suggest that they have been remodelled since they were originally built. Parts of their ditch profiles are far too steep and sharp to be prehistoric since earthworks tend to slump and soften with age. It has also been previously suggested that the Casten Dyke South may have been mediaeval rather than prehistoric in origin and could have been specifically constructed for the battle.

Both the Roulston Scar Hillfort and Casten Dyke South have their defences facing north, protecting two large steep-sided promontories of land respectively 24 and 28 hectares in extent which could have served as seemingly strong positions for use as encampments for the English army. Facing south towards them, across a gap of between 880 to 1300 metres, is the Casten Dyke North. So might these earthworks mark the respective positions of the English and Scottish armies in October 1322, before a part of the Scottish army managed to outflank and rout the English forces? 

Casten Dyke North and South - survey areas. Copyright Ed Dennison Archaeological Services Ltd.

Putative plan of earthwork area - annotated. NYMNPA.The surveyors concluded that both dykes lack firm dating evidence but do show evidence of substantial later modifications. The Casten Dyke North more convincingly fits the pattern of a later prehistoric cross-ridge dyke, whilst the Casten Dyke South is clearly unconnected with the prehistoric defences at Roulston Scar and would work better as a medieval or post-medieval boundary, which could – perhaps – either have been first constructed or re-fortified in the early 14th century.

By sealing off the north side of a plateau, and with very steep slopes on all other sides, any English force encamped within would have felt they held a reasonably secure position, particularly if they were augmented by another force close by to the west behind the modified northern rampart of Roulston Scar. The plateau site overlooks Boar’s Gill and Hell Hole, both steep-sided small valleys which would have provided routes up the natural escarpment for the Scots forces seeking to outflank the English army which they ultimately did. If this was the case, then some re-assessment of the battle itself might be required. The traditional narrative suggests that the battle was a hastily organised action, but the use of earthworks would perhaps indicate that it involved more preparation on both sides.

Later warfare

One factor that all previous surveys have largely underestimated is the impact of Second World War activity affecting both earthwork dykes. The 2016 survey found evidence of significant amounts of re-cutting of the dyke ditches, in sections up to 70 metres in length, to provide a very steep (i.e. good defensive) profile together with breaks for access, slit trenches and weapons pits. This has obvious implications for the evidence of a mediaeval battle, as extensive WWII wartime alterations may have obscured earlier alterations undertaken in 1322, particularly if these were done somewhat hastily and piecemeal prior to the battle.

Casten Dyke North and South - areas of 2WW activity. Copyright Ed Dennison Archaeological Services Ltd.The recent survey has greatly increased our knowledge of local activity in the 1940s in addition to that revealed by previous surveys of slit trenches in the area of Kilburn Moor Plantation, around the perimeter of Roulston Scar gliding field owned by the Yorkshire Gliding Club, and those visible on RAF aerial photographs from May 1940 where the slit trenches are revealed by pale lines of upcast from the ditches that were dug or re-cut.

Casten Dyke North and South - 1940 aerial photography of Casten Dyke North. Ed Dennison Archaeological Services Ltd.

Taken together the evidence demonstrates that there is a significant area of WWII military earthworks in this area. They appear to be grouped and so are unlikely to all be exactly contemporary or to serve the same purpose. Some of these earthworks may relate to troop training, but those closer to the gliding field may be a defence against potential enemy landings. So far, only a proportion of the trenches visible on the old aerial photographs have been located and confirmed on the ground, whereas those within Kilburn Moor Plantation have already been subject to detailed survey (by Ed Dennison Archaeological Services Ltd).

Survey detail of Kilburn Moor Plantation trenches. Copyright Ed Dennison Archaeological Services Ltd.

Conclusion

Unfortunately it is still not yet possible to conclusively confirm the site of the Battle of Byland despite the tantalising information we’ve collected so far. Further work would be needed to acquire more information that could attest to this location. With the 700th anniversary of the Battle of Byland coming up in 6 years’ time it could be very timely.

Practical Chemistry

Aside

Following on from our last blog post about lime mortars and traditional buildings – there are a series of upcoming workshops over the next few months on using hot mixed and other traditional lime mortars, aimed at practitioners in the north of England.

Further information – lime-mortar-workshops-january-to-march-2017

Benefiting bees

Roy McGhie – Conservation Project Assistant

Recently my colleague Ami and I went on an organised farm walk near Menethorpe to the south of the North York Moors. The event was led by the Campaign for the Farmed Environment and the theme was habitat management for pollinators. The walk was well attended by local land managers who wanted to know a bit more about the benefits that pollinators provide, and how they might most easily encourage them, in particular on otherwise unproductive areas of their land.

The main focus of our discussion was inevitably bees – our most efficacious pollinators.  We were given copies of an excellent booklet from the Centre of Ecology and Hydrology called ‘Habitat Creation and Management for Pollinators’.

We’ve mentioned bees a number of times before in this blog, but felt it was about time they had their own post because they are so important.

CFE Farm Walk - a pollinator meadow on the farm we visited full of red and white clover and meadow vetchling. Copyright NYMNPA.

In the UK whilst there is only one species of honey bee Apis mellifera (both wild and semi-domesticated), there are about half a dozen common bumble bees and over twenty common species of solitary bees like mining bees, mason bees and leaf cutter bees.

The bee flying season can begin as early as March and extend right the way into October, as long as there is food i.e. nectar and pollen available. Most species of bees can survive over winter if there is somewhere for them to hole up.

Bumble bees on a thistle - copyright NYMNPA.

The anatomy of different bee species varies greatly, and so to assist most species it’s best to have a wide range of flower species from which they can feed. As some of the mining bees have short tongues of only 4-5mm, they need open flowers such as cow parsley and daisies. The garden bumblebee Bombus hortorum on the other hand has a tongue that can extend to around 12mm, so it can feed from flowers with a long corolla (i.e. petals) like foxgloves and honeysuckle.

As well as fragrance, one of the other things that attracts bees to flowers is colour. So its worth considering maintaining colours throughout the season. For example, coltsfoot and hawk’s beard provide yellow colour from about February to June, and then cat’s ear How we see it (left) and how a bee might see it with UV shades visible (right) - Klaus Schmitt.and bristly oxtongue do the same from June to October. Similarly, a successional combination of white deadnettle, oxeye daisy and yarrow can ensure there are plenty of white flowers throughout the year. Interestingly, it is thought that bees can see in ultraviolet, which means how they perceive flowers will be very different from how we do.

Establishing and managing a wildflower meadow is one of the most effective ways of ensuring bees have a suitable habitat. In addition it is thought that on arable farms having a flower-rich margin on at least 1% of the land will provide significant benefit to pollinators, which in turn will improve crop production and quality. Hedgerows can be another useful way to help bees – cutting hedges on a two or even three year cycle will encourage more hawthorn and blackthorn flowers. When new hedges are planted, a greater species diversity (using hazel, field maple, crab apple, holly and willow where appropriate) will also mean that there is more food and nectar available for a longer period throughout the year.

Bees are fantastic creatures in their own right. They also provide a number of hugely important direct benefits for our countryside and environment. There are things we can do to encourage bee survival such as sowing appropriate wildflowers and creating habitat stepping stones, allowing what we might think of as typically weeds to flourish (in the right place), creating patches of bare ground in sunny dry spots which will allow solitary mining bees to nest, and leaving tall grass over winter which can provide places for bumblebees to hibernate and nest.

Bees are often in the news these days, mostly because they are in decline – they even need their own national strategy. If we can do our best to make the landscape more friendly, we can help give bees a better chance, and ensure they can continue to play a key role in pollinating our flowers, trees and crops.

Bee on red clover - copyright NYMNPA.

For a local initiative – see B-Lines Ryedale

A to Z: a gathering of Gs

G

GARDENS

The Register of Historic Parks and Gardens of special historic interest in England, was established in 1983 (National Heritage Act) and is managed by Historic England. It currently identifies over 1,600 significant sites across the country, ranging from the grounds of large stately homes to small domestic gardens, as well other designed landscapes such as town squares, public parks and cemeteries. The register aims to “celebrate designed landscapes of note, and encourage appropriate protection” so as to safeguard the features and qualities of these key landscapes into the future. The designation is on a par with scheduling and listing and therefore provides legal protection which means it is a material consideration in the planning process.

Within the National Park we have four entries on the national Register of Historic Parks and Gardens.

Arncliffe Hall – A small 3 hectare site, Arncliffe Hall gardens include two walled enclosures, grass terraces, a summerhouse, and two L shaped canals. The Hall was built between 1753 and 1754 and the gardens and pleasure grounds had been laid out by the 1770s. Alterations have since been made, although the structure of the gardens has remained broadly intact.

The Hall gardens are not open to the public.

Duncombe Park – This 285 hectare park was created in the early 18th century and early to mid-19th century on the site of a medieval deer park associated with Helmsley Castle. It was described as “pleasure grounds” with a curving terrace, blocks of woodland with curving paths and a serpentine ha-ha. It is one of the earliest examples of a ha-ha in the country (around 1718-23) – the walled ditch demarcates between the garden and the thrilling ‘wilder’ landscape beyond without breaking up the important vista. The Park retains elements of both the formal, symmetrical garden style and the later more picturesque “English garden” style.

The Park still contains a large number of veteran trees and is considered the most important parkland in the north of England for dead-wood insects.

The Duncombe Park gardens are open to the public – please see the Duncombe Park website.

Rievaulx Terrace – This 23 hectare site forms a terrace laid out in about 1758 with views of the valley of the Rye and the ruins of Rievaulx Abbey. The layout of the Terrace with the emphasis on unfolding views rather than formal axes was departure at the time and has been described as ‘a landmark in the development of English Landscape style’ and ‘a superlative example of large-scale landscape gardening’. The Terrace was part of the Duncombe Park Estate and the picturesque dramatic ruins of Rievaulx Abbey presented the ultimate landscape Folly.

The Terrace is open to the public – please see the National Trust website.

Mulgrave Castle – A 350 hectare park which was laid out by the first Earl of Mulgrave in the late 18th century and early 19th century incorporating proposals of Humphry Repton (the last great English landscape designer of the 18th century, often regarded as the successor to Capability Brown). A series of drives took in the most dramatic and aesthetic features. The Park makes full use of its ‘wild’ rural setting and encompasses the steep valleys of the Sandsend Beck and East Row Beck, as well as the romantic ruins of the old Castle.

The Park is occasionally open to the public, by invitation.

GEOLOGY and GEOMORPHOLOGY

‘The region forms one of the most natural divisions of Yorkshire possessing its own special physical boundaries’ Frank Elgee, 1912.

The North York Moors stands out from the surrounding lowland landscape to the north and west, stands up against the North Sea in the east, and to the south slopes more gently down into the Vale of Pickering. The North York Moors were originally designated as a National Park because of its landscape. The land forms and land management which result in the changing landscape are a result of the underlying geology.

From Geology of the North York Moors by Alan Staniforth, North York Moors National Park 1990

The geology of the North York Moors is made up largely of layers of sedimentary rock formed under water during the Jurassic Age. The exception is the Cleveland (Whinstone) Dyke which cuts across the area and is an igneous seam forced vertically upwards as molten lava. The last Ice Age, around two million years ago, meant the North York Moors plateau was surrounded on three sides by ice sheets. The effects of the ice itself, and then as it retreated, had huge effects on the land forms along the edges e.g. the western scarp, the Newtondale and Forge Valley glacial meltwater channels. Sedimentary rocks continue to erode over time, due to the wind, rain and the sea, and so the landscape continues to morph – this can be seen most dramatically now along the coastal edge. In a number of places where softer shale rocks have eroded away, the harder sedimentary rocks remain as outcrops e.g. Bridestones.

Formed under water sedimentary rocks contain the fossilised remains of animals and plants deposited on the sea floor which is why this area is so well known for fossils. There was a thriving industry on the coast in the 19th century where dealers were happy to supply real, and not so real, fossils and other historic artefacts to collectors.

Geology shaped in prehistory continues to affect the more recent history of the North York Moors. The sedimentary rock groups include elements which have been quarried and mined, and vestiges of these industries can still be seen today. These minerals, valuable enough at one time or another to encourage exploitation, have included jet, coal, alum, and ironstone; as well as limestone and whinstone for building materials. The needs of the industrial revolution led to advances in geology/geomorphology because it was financially important to be able to understand and identify where the best mineral seams could be most easily accessed. The latest minerals of the North York Moors area to be valued are potash and polyhalite. Oil and gas (created by fossilisation) are also present in the sedimentary rock stratification.

GOLDEN-RINGED DRAGONFLY (Cordulegaster boltonii)

Female adult golden-ringed dragonfly - from yorkshiredragonflies.org.ukThis particular dragonfly species favours watercourses and waterbodies in upland heathland areas, including the North York Moors. One of the places it can be seen is the Yorkshire Wildlife Trust’s Fen Bog Nature Reserve.

The majority of the life of a dragonfly is spent as a nymph living in water and predating on other creatures including fish. The short lived adult emerges from the larval stage when it leaves the water, begins to breathe and breaks out of its old skin. Adult dragonflies are a spectacular summer sight in England where native wildlife is seldom flashy, because of their unusual size and their eye catching bright colours.

GOLDEN PLOVER (Pluvialis squatarola)

Golden Plover - copyright Mike Nicholas

The Golden Plover is a wading bird. A wader is any species of longish legged bird that feeds in shallow water. The Golden Plover is one of a number of wader species that breed on the North York Moors – the other main species being Lapwing, Curlew and Snipe. Golden Plover spend spring and summer on the moorland and along the moorland/farmland edge (inbye). They are a ground nesting bird preferring shorter managed vegetation so they can see approaching predators. Like most ground nesting birds they are often more easily heard than seen.

The major moorland area of the North York Moors National Park is an internationally important habitat for Golden Plover and because of this Golden Plover population (as well as its Merlin population) the area has been designated as a Special Protection Area. Our most recent Moorland Breeding Wader survey (2014) found the highest densities of Golden Plover on record in this area.

Goldilocks Buttercup - copyright Sam Witham, NYMNPAGOLDILOCKS (Ranunculus auricomus)

The Goldilocks Buttercup (sometimes known as Wood Buttercup) is a small low growing straggly plant that flowers in April/May. It has bright yellow flowers with uneven misshapen looking petals. It is often found in Ancient Woodlands sites growing in moist glades, on hedge banks and along shrubby margins, and as a ‘calcicole’ it thrives on chalk, limestone and other basic soils.

There are orphan Goldilocks within Helmsley Churchyard. To the north of the churchyard is Beckdale which is still wooded and here the plant grows alongside the beck – just downstream the same beck runs through through a culvert in the Churchyard. The Goldilocks could be a surviving remnant from woodland on the site over 1,000 years ago.

GOOSEBERIES

The Egton Bridge Gooseberry Society has maintained the competitive northern tradition of showing and comparing the heaviest gooseberries grown, since approximately 1800. The Egton Gooseberry Show is held every year on the first Tuesday in August – and is all about this deliciously juicy cultivated fruit.

The wild relation (Ribes uva-crispa) can be found occasionally in old hedgerows.

GOTHSIllustration by Abigail Rorer from Dracula - www.foliosociety.com

The Goths, or Visigoths, were a Germanic Tribe largely responsible for the fall of the Western Roman Empire. But it’s not that type of Goth that congregate in Whitby at least twice a year. Our Goths are those who celebrate the darker side of existence and share an appreciation of the morbid and the beauty of horror, and you couldn’t meet a nicer bunch of people. They are drawn to Whitby because of its association with Dracula, a personification of the Gothic. Hopefully on their way over the moors to Whitby they enjoy the dark brooding skies and the grim lonely landscapes of the North York Moors.

GRASSLAND

2014-06-30 Species Rich Grassland at Sutton Bank - Red Clover, Quaking Grass, Fairy Flax - by Kirsty Brown, NYMNPAGrasslands are extremely important habitats supporting a wide range of plant and animal species. A large part of our grassland habitats resource has been lost in the National Park, like elsewhere in the country, through agricultural intensification where land has been ‘improved’ by using fertiliser and re-seeding to increase productivity and make a better living. Species rich unimproved grasslands still exist in the National Park, though they are now often small and isolated remnants of habitats that used to be widespread – in 2012 it was calculated that of the 45,000 hectares of grassland in the North York Moors only approximately 1,150 hectares were species rich grassland. These small areas hang on where their location or terrain has made it difficult to intensify management, for example on steep banks and in awkward field corners. Roadside verges can also retain valuable grassland flora.

In the Tabular Hills, along the southern edge of the North York Moors, diverse species-rich calcareous grasslands can still be found. However, these grasslands are at risk; under grazing can lead to scrub encroachment, whereas over grazing can cause erosion and loss of vegetation structure and plant species. Lowland Calcareous Grassland* is a priority habitat that the National Park seeks to conserve, restore and where possible create.

Locally, there is a lot more good quality, semi-improved grasslands in the North York Moors which despite being species rich, do not qualify as a species rich priority habitat because they don’t reach the abundance threshold. Instead these grasslands are classed as ‘good quality semi-improved or degraded grassland of high species richness’, or ‘semi-improved grassland of moderate species richness’. These grasslands are often farmed but just aren’t ‘improved’ to the level of other fields.

Our grasslands may have been slightly more species poor historically than grasslands elsewhere in the country e.g. the Yorkshire Dales because they are close to acid moorland soils and not surrounded by calcareous geology and consequently do not typically have an abundance of calcareous (limestone) species. However, for this National Park they are still locally valuable habitats supporting a diverse flora and associated species and well worth conserving for biodiversity and landscape reasons. This is one of the main aims of our Habitat Connectivity initiative.

*The North York Moors is mostly under 300 metres altitude which is the approximate dividing line between ‘lowland’ and ‘upland’ habitats.

Previously on the North York Moors A to Z … A, B, C, D, E, F

Catchment Trilogy – Part 2: Discovering the Esk

Alex Cripps – Catchment Partnership Officer

The Yorkshire Esk Rivers Trust (YERT) on behalf of the Esk and Coastal Streams Catchment Partnership* received a funding boost last April thanks to players of a charity lottery. £10,000 was awarded by the People’s Postcode Trust to deliver Discovering the Esk.

The Discovering the Esk project is made up of four initiatives:

  • Salmon in the Classroom;
  • Young Anglers Initiative;
  • Adopt a Stream; and
  • Riverfly Monitoring.

Discovering the Esk brings local people together to care for the catchment environment, and the first year of the project has been a great success!

Salmon in the Classroom literally brings the river into the classroom albeit in a fish tank! Primary School pupils along the Esk Valley learn more about the lifecycle of the Atlantic salmon, river ecology, and the important role they can play in looking after our local rivers into the future.

In 2015 we delivered Salmon in the Classroom at Goathland Primary School and the pupils did a great job caring for the eggs culminating in releasing the young fry back into the Esk in May. This year we will be at Sleights Primary School so it will be the turn of the children there to watch the eggs hatch and the young fry grow until the fish can be released to take their place back amongst the inhabitants of the river.

Through the Young Angler Initiative nine young anglers learnt to fish this year thanks to the dedication of local angling club volunteers (from the Esk Fisheries Association) who ran the fishing sessions. A professional tutor kick started the season with a Taster Day and then returned towards the end of the season to hone our young angler’s growing skills.

As well as the actual fishing our young anglers also got to enjoy the outdoors and to fish at places they had not been to before, and the sessions were an opportunity for to socialise.

Riverfly Monitoring is currently carried out by twenty local volunteers who have now been trained up in the nationally recognised sampling methodology established by the Riverfly Partnership.

The volunteers have learnt how to identify key aquatic invertebrates groups which we know require good clean water to survive. Our current volunteers are now monitoring thirty sites across the catchment to assess the water quality and detect signs of any issues. They do this by taking a 3 minute kick sample (to disturb the river bed and overhanging vegetation) catching the content in a net, and a 1 minute stone search. The sample is then cleaned using river water and put into a tray to settle. Key river invertebrate groups are identified and counted and if the results are lower than expected the Catchment Partnership and Environment Agency  can investigate the area to check for any potential pollution incidents causing the issues.

Our volunteers have been honing their identification skills at refresher workshops, getting to see these beautiful invertebrates up close!

Adopt a Stream is a new initiative recruiting ‘Guardians of the Esk’. We already have a number of people reporting interesting things they see while out and about, but Adopt a Stream ensures that key areas are being checked regularly and that information is collated and applied. Through Adopt a Stream we hope that all the potential barriers to migratory fish sites on the Esk can be adopted, with volunteers ensuring the structures do not become blocked. If they do, the Catchment Partnership can be alerted and can sort them out. We want to make sure the whole catchment is monitored to check for issues such as litter, and to build up a network of people monitoring the local wildlife so we can accrue a picture of what is normal and use it to continually assess the health of the river.

If you might be interested in becoming one of our ‘Guardians of the Esk’ we are holding an Adopt a Stream workshop on Monday 7 March. The monitoring programme is designed to suit everyone’s interests and fit within the time you can commit, so if you have a favourite walk, a regular fishing spot or simply visit the catchment now and again, then we would love for you to get involved. Please contact us.

View of the Esk - copyright Jeff at Aetherweb (aetherweb.co.uk)

View of the Esk. Copyright https://www.flickr.com/people/tall-guy/.

For more information on Discovering the Esk, how you can get involved, and the latest Catchment Partnership news, please have look at the Yorkshire Esk Rivers Trust website.

* The Esk and Coastal Streams Catchment Partnership is jointly hosted by the Yorkshire Esk Rivers Trust and the North York Moors National Park Authority, who work together to improve and care for the Esk and Coastal Streams Catchment.

 

 

National Park Newbie

Kate Bailey – Conservation Graduate Trainee

Kate, Conservation Graduate Trainee - copyright NYMNPAHaving started in September as the new Conservation Graduate Trainee, I have been busy getting out and about in the National Park getting to know my colleagues and my fantastic place of work.

One thing I have been fortunate to get involved with so far has been this year’s National Park Authorities’ Ecologists’ Workshop. The theme of the three day workshop hosted by this National Park was “Improving Habitat Connectivity” and there was a great turn out – ecologists from all 15 UK National Parks attended, apparently the first time this has happened! For a new member of staff it was great for me to hear about how this National Park is working on restoring and reconnecting important habitat networks such as species rich grassland, river corridors and native woodland. It was also a great opportunity to meet people from across the country who are so passionate about conserving our countryside and wildlife.

Our Monday evening activity was a boat trip out of Whitby – with the possibility of seeing some whales. Unfortunately, we didn’t see any. Everyone joked that it is always the way – as a group of ecologists approach, all the wildlife disappears! However, we had a great trip all the same with a beautiful sunset, topped off with fish and chips – a must if you are in Whitby.

View looking back at Whitby - Ecologists Workshop Sept 2015 - copyright Kate Bailey, NYMNPA

Sunset over land - Ecologists Workshop Sept 2015 - copyright Kate Bailey, NYMNPAComing back into Whitby - Ecologists Workshop Sept 2015 - copyright Sam Witham, NYMNPAWe had beautiful weather for all three days, especially for our field trips on the Tuesday. We visited four sites which illustrate some great examples of restoration in the North York Moors – on moorland, in PAWS and along rivers – always returning to the importance of building a connected landscape within the National Park and beyond.

Glaisdale Moor peatland restoration - Ecologists Workshop 2015 - copyright Kate Bailey, NYMNPA

Lealholm stepping stones - Ecologists Workshop 2015 - copyright Kate Bailey, NYMNPAEsk Valley farmland - Ecologists Workshop 2015 - copyright Kate Bailey, NYMNPA

Arnecliff Woods - Ecologists Workshop 2015 - copyright Sam Witham, NYMNPAArnecliff Woods - PAWS restoration - Ecologists Workshop 2015 - copyright Kate Bailey, NYMNPA

 

 

 

 

 

 

I’m looking forward to getting involved with as many different things as possible to make the most of my time as Conservation Graduate Trainee over the next two years. I’ll be carrying out botanical and bird surveys, monitoring farmland and land management through our Wildlife Conservation Scheme and Traditional Boundary Scheme, and hopefully getting the opportunity to go on lots of interesting training courses as well as learning from my colleagues. All in all, I hope my time with the Authority will give me enough experience and knowledge to pursue the career in conservation that I have always wanted!

Along the riverbanks

John Beech – Land Management Adviser

A couple of weeks ago a demonstration event was held in Bilsdale, organised through the new (Yorkshire) Derwent Catchment Partnership*.

The event, kindly hosted by Mr and Mrs Lang, was held in order to share knowledge and experience when it comes to managing watercourses for wildlife benefits.

Demo Day 9 September 2015 - copyright NYMNPA

Initial discussions between landowners and Partnership organisations focused on  practical application. The Wild Trout Trust led on the practical demonstrations in the river. This included realigning some of the woody debris found in the channel in order to re-direct water flows. There was a lot of talk around the question of responsibility for trees in rivers, and when and where to remove or leave or realign them.

Demo Day 9 September 2015 - copyright NYMNPA

The practical demonstrations also included using natural materials to help stabilise banks in order to lessen erosion. One of the main issues with the Rivers Rye and Seph in Bilsdale is siltation which smothers river gravels and therefore inhibits spawning areas for fish with a knock on effect on fish populations. Riverside fencing and resulting buffer strips can have a significant effect in lessening agricultural run-off into a watercourse and so improve water quality. Creating 6 metre wide grass buffer strips along banks can not only help halt run off and help stabilise the banks with vegetation but also provide excellent habitat linkages adjacent to the river and so enhance connectivity along the river corridors running through a landscape.

Over this summer the National Park Authority has lead on another round of Himalayan balsam control, this time on behalf of the Partnership. This is the 8th year of this programme aimed at eradicating this particular invasive non-native plant at the top of the Rye catchment. Where the programme started, right at the top reaches of the the River Seph, the aim of eradication has almost been achieved, but repeat surveying and the pulling up of any individual plants that remain is vital to make sure this can be finally realised. Himalayan balsam can grow pretty much anywhere but it is particularly rife along watercourses where seeds are effectively spread downstream by the moving water. The main threat of the plant to a riparian habitat is that it tends to out compete native vegetation and then dies back in the winter leaving banks uncovered and subject to erosion.

Himalayan balsam (Impatiens glandulifera) - copyright NYMNPA

Enhancing the river for wildlife is a key goal for all members of the new Partnership. What is essential for delivery is the engagement of landowners and the identification of common objectives, and this kind of event can help with that.

*The Derwent Catchment Partnership includes the East Yorkshire Rivers Trust, Environment Agency, Forestry Commission, Natural England, Yorkshire Wildlife Trust, North Yorkshire County Council, East Riding of Yorkshire Council, City of York Council, Howardian Hills AONB, and the North York Moors National Park Authority.

 

Practicalities of meadow creation

Michael Johnson – Conservation Graduate Trainee

In June I was on a remote farm near Burradon on the outskirts of the Northumberland National Park to attend a workshop run by Flora Locale on Practical Meadow Creation and Management.

Flora Locale Training Day - June 2015 - Michael Johnson, NYMNPAWhat made this workshop different to others I’ve attended was the emphasis that was placed upon the invertebrate population and their place within the ecosystem as a whole. Yes, there was the need to make a living from the land; however, in this case there wasn’t a trade-off with ecological responsibility. The farmer was happy to support the conservation interest of his land and at the same time able to make money.

The farm was managed in order to both maximise profitability in terms of hay production for sale and to create species rich hay meadows by growing species such as Ox-Eye Daisy, Yellow Rattle, Plantain, Lesser Trefoil, Eye-bright and Red Clover which supports populations of native pollinators. The local provenance flower and grass seeds were also harvested and sold on to local collectives, other farmers, and the Northumberland National Park to enhance, restore and create buffer strips and meadow areas elsewhere in the area.

Flora Locale Training Day - June 2015 - Michael Johnson, NYMNPA

The concept of leaving field margins as wild areas on farms is not a new one, yet here there was quite a novel take on the notion – separate fenced off areas within a field that equated to perhaps a tenth of the total field size that were planted some weeks after the initial fields were sown, not cut for hay, not aftermath grazed and just left so that pollinators would have a ready and available food source throughout the season and after the main fields were harvested so as to enhance their potential and give the pollinators more of a chance to survive the winter.

There is the idea of maximising productivity from managing available land intensively; I believe that when considering what makes our land profitable – the role of the pollinators in food and crop production cannot be overlooked in the quest for productivity.

Flora Locale Training Day - June 2015 - Michael Johnson, NYMNPA

There are different ways to create species rich grassland. One is to cut a flower rich hay crop before the plants in it set seed and then spread this ‘green hay’ mix onto harrowed and disturbed ground, and then use aftermath grazing to remove the rank vegetation that is a by-product of the process. Potential problems with this method is that the process is very time sensitive – the time from cutting, collecting, transporting and spreading is very short due to the natural enzymes and chemicals within the decomposing vegetation causing the plant material to heat up and therefore contributing to the seeds denaturing and reducing their germination effectiveness. The addition of livestock to trample the seed into the ground and remove the rank vegetation can contribute to the nitrogen and mineral levels in the soil, making it more fertile and therefore susceptible to encroachment and colonisation by weeds and perennials such as thistle and dock.

I think that the alternative of collecting the seed with a specialist seed harvester from the plants still in situ means these problems are dissipated and lessened; there is no time urgency for removal and transportation, no need for aftermath grazing to separate out the seed and no over fertility issues in adding more nutrients to the soil.

The aim of this post isn’t to nay-say and dispute traditional and existing land management methods, just to highlight another potential option for sustainable land management.

Around the end of apple blossom time

Tricia Harris – Helmsley Walled Garden

As the unseasonal cold weather whips the blossom from the fruit trees, it’s hard to think of summer and apple harvests. But sure enough, if the bees have done their work, the branches will have plenty of fruit for us to collect to turn into pies, chutney and juice by then.

James Grieve Apple Tree - Tricia Harris, Helmsley Walled Garden

Helmsley Walled Garden has over one hundred different apple trees. One particular collection surrounding the community allotments, is the Yorkshire collection. This is a collection of apple trees that have proven to grow well in cooler northern climes. Some, like Acklam Russet, first recorded in the village of Acklam in 1768 have been here for centuries. Others, like Charles Ross, were originally first grown in Apple blossom April 28th 2015 - Tricia Harris, Helmsley Walled GardenBerkshire, but have grown well up here for over 100 years. But whether it’s Keswick Codlin or Ribstone Pippin; Hunthouse or Cockpit, all do well in Yorkshire.

All of these apples were grown for their taste and keeping qualities. Cooking apples such as Lane’s Prince Albert and Alfriston, if stored in a cool, dry place without touching, will keep throughout the winter. The Worcester Pearmain Apple Tree - Tricia Harris, Helmsley Walled Gardenoriginal Walled Garden was created to supply the fruit and vegetables to the nearby Estate House – Duncombe Park – and had plenty of suitable storage space. The current office buildings against the north wall would have had an apple store, a root vegetable store, a grape room plus dark forcing rooms for chicory and early rhubarb. These rooms and the gardeners’ ingenuity, ensured that as required there were supplies of fresh fruit and vegetables all year round.

If you want to find out a bit more about local apples, come and see the local collection here at Helmsley Walled Garden. The Garden will be having an apple day on 3 October when you will be able to try some of them and get to appreciate the subtle differences of taste, smell and texture.

You can also read up on a wide range of apple varieties on websites such as www.orangepippin.com to find out more about Britain’s favourite fruit.

Apples - Orchards of Husthwaite

Traditional Orchards are one of the United Kingdom’s priority habitats. Priority habitats are semi-natural habitat types considered to be the most threatened and therefore requiring conservation action. Traditional Orchards are one of the rarer priority habitat types in terms of area. This composite habitat is defined as groups of fruit and/or nut trees planted on vigorous rootstocks at low densities in permanent grassland; and managed in a low intensity way. An important part of the biodiversity of a Traditional Orchard is the diversity of the fruit itself, valued as something worth conserving and not allowing to be lost for want of trying.

Traditional Orchards are still important for landscape and local heritage, alongside biodiversity. Historically many farmsteads and sometimes villages would have had their own small orchard, you can see this on historic Ordnance Survey maps where little tree symbols are set out in neat rows next to habitation. In the North York Moors Traditional Orchards are mainly still found on the southern edge, in the dales in the Esk Valley, and around Whitby.

Traditional Orchards are an example of a semi natural partly contrived habitat where man has manipulated the natural environment and biodiversity has adapted – perfect little ecosystems producing an end product of value to society. Like many semi-natural habitats, Traditional Orchards need management to survive.

For more information on how to manage a traditional orchard – see here.