A to Z: a slew of Ss

S

SAINTS

A number of saints are associated with the North York Moors. Geographical associations can sometimes be found in the name of parish churches dedicated to particular saints, like St Oswald’s, St Cuthbert’s or St Hilda’s, all Anglo-Saxon celebrities when the north east of England was particularly important for the celtic branch of Christianity before the church in England romanized. Not all saints are Anglo-Saxon, it’s just that quite a lot of them are in Britain, many awarded sainthood before canonization became more centrally organised.

The full name of the church in the village of Oswaldkirk (which means Oswald’s Church) is the Church of St Oswald, King and Martyr. St Oswald (died 642) was a King of Northumbria, the kingdom included most of Yorkshire at one time or another. Oswald converted to Christianity as a young man in exile on the island of Iona, a hotbed of celtic Christianity whilst the rest of Britain was mostly pagan. He regained his kingdom as a Christian and then made it his mission to spread the new religion. He died in battle against pagan Mercians in 642, hence the title of Martyr. His body was supposedly cut up in a pagan ritual, but this meant his body parts were them disseminated across the country, and even onto the continent, as inspirational Christian relics.

St Cuthbert (died 687) was a monk for most of his life, he was the Prior on Lindisfarne before he gave it up to become a hermit on one of the nearby Inner Farne islands. After his death he became a very popular saint widely venerated across the north of England and beyond, probably because of his steadfastness and asceticism as well as his holiness. Over 400 years later he was said to have had an incorrupt corpse when dug up, which always makes an impression. St Aiden (died 651) was the first Prior on Lindisfarne and seems to have had a similar character and calling to Cuthbert, but he ended up partly eclipsed by his successor in the saint popularity stakes. Although there are many St Cutchbert’s Churches round and about the Norht York Moors, but only one within, at Kildale. But there are two St Aidan’s, in Oswaldkirk and in Carlton.

St Hilda (died 680) as an Abbess had status in the Christian hierarchy which gave her authority and influence in her lifetime, her personal qualities meant that continued after her death. She was an advocate of education, and her own wisdom was greatly valued. She was first an Abbess at Hartlepool before re-founding the Abbey of Whitby (not the current ruin), where monks and nuns lived separately but worshipped together. She hosted the important Synod of Whitby in 663/4 at which it was decided that the future of the English church should be Roman. Like Cuthbert, after her death Hilda was widely venerated in the north of England. There are St Hilda’s Churches in Ampleforth, Beadlam, Danby and Hinderwell – which is a derivation of the name Hilda’s well.

The church in Lastingham is named after St Chad but it is St Cedd, his brother, who is buried in the crypt. St Cedd (died 664) was an important person in the hierarchy of the Anglo-Saxon church, as well as founding a monastery at Lastingham he evangelized all over England and was known as the bishop of the East Saxons i.e. Essex. St Chad (died 672) succeeded him as Abbot of Lastingham but spent much of his time converting the re-occuring Mercians in the midlands of England. Both brothers learned their ‘trade’ on Lindisfarne before being sent out by various Christian kings of Northumbria to convert the pagans in the rest of England. There are also St Chad’s Churches in Sproxton and Hutton le Hole.

St Caedmon (died 680) is a particularly local saint, he was possibly a herdsman from Whitby before he became a monk at Whitby Abbey whilst Hilda was the Abbess. He never had a position of authority like the other saints mentioned, he did however have a gift for composing poetry in the vernacular which illustrated Christian stories and ideas, so helping to spread the faith. One thing to note is that there are no churches dedicated to St Caedmon, but he does get to patronise a school in Whitby.

SEGMENTED EMBANKED PIT ALIGNMENTS

Segmented Embanked Pit Alignments (SEPA) are an historic earthwork feature of the north east of the North York Moors, identified by the Royal Commission on the Historical Monuments of England as a specific type of monument in the 1990s. Previously this type of feature had been classed as a double pit alignment – two lines of pits marking a boundary. A SEPA earthwork however is made up of two or three pairs of pits inside two parallel enclosing banks largely made from the spoil from the pits, these are generally in what appear to be conjoined segments. The segmentation suggests development over time rather than a linear structure created in one go as a land boundary.

In each case the SEPAs appear to be aligned with nearby Bronze Age barrows (burial mounds), which suggest the SEPA are Bronze Age too and could have had a related ritual purpose. The alignment of all the SEPAs is north-west to south-east. This alignment seems to have taken precedence to any alignment with the barrows. The parallel banks were oddly low, which means the earthworks were not prominent in the landscape when they were constructed, unlike the barrows.

No similar features have been identified in the rest of Britain. SEPAs are therefore particularly important and all are now scheduled along with their associated barrows. There are three locations of SEPA earthworks – on Middle Rigg, Easington High Moor (SM 1020351), on Danby Rigg (SM 1018782) and on Ugthorpe Moor (SM 1016532 and SM 1016533) – all within ten miles of each other.

SEPA on Middle Rigg, Easington High Moor - the ranging rod is in one of the pits. Copyright NYMNPA.

SHEEP

Sheep are the main stock animal farmed in the North York Moors. According to Defra’s June 2016 agricultural census returns, there were 296,120 sheep in the National Park at that time, five and a half times the number of cattle. Why the pastures, grasslands and moors of the North York Moors are used for sheep is based on current economics and a couple of centuries of custom. Sheep can manage on open moorland for a lot of the year without much input if they’re hefted – which means when a flock keeps to a certain part of an area because of learnt behaviour, rather than needing fencing. But just like there are a variety of different habitats and landscapes in the North York Moors, there are a variety of different sheep breeds and farming methods, and not all North York Moors sheep spend summer amongst the heather.

Blackface sheep on moorland. Copyright NYMNPA.

One of the main breeds in the North York Moors are Blackface. Blackface sheep are hardy and easily hefted, so good on northern hills. Mixing sheep breeds to develop sheep that best suit local conditions and to accentuate their best commercial features is an ongoing endeavour amongst sheep farmers. A mule is a cross breed sheep, mixing the qualities of a Blackface sheep with a more commercial breed either for wool or for meat.

Ram, ewe and lamb are common enough descriptive nouns for sheep, but there are a lot more you’ll need to know if you want to talk sheep with a North York Moors farmer. For instance a tup is another name for a ram, a wether is a castrated male lamb, a hog is an older lamb more than a year old, a gimmer is an older lamb which will be used for breeding.

North York Moors sheep flock. Copyright NYMNPA.

If you want to find out more about sheep, and who wouldn’t – have a look at the National Sheep Association’s very informative website.

SMUGGLING and other criminal enterprises

The North York Moors has high cliffs, sheltered coves and small fishing villages on its eastern coastal edge. So ideal for people with boats in the 17th to 19th centuries  to bring in comestibles whilst avoiding being made to pay custom and excise duties due to the government. This smuggling was never on the scale of that in the south of England because of the distance from the continent, but there were local opportunities for small boats to go out to sea and collect goods from passing ships.

The fact that the terrain of the North York Moors and distance from authority meant it was difficult to collect duties plus the fact that many people didn’t want to pay the duties, together meant organised criminal enterprise was rife. There weren’t very many ways of making money, smuggling was one, as long as you weren’t caught and potentially transported or executed.

Goods were landed, held in coastal villages and farms, and then distributed, all the while the Customs and Excise Officers tried to prevent this with varying enthusiasm and results. The British Government used money from duties to help finance numerous wars in Europe and so always wanted to collect as much money as possible because wars are always expensive. Customs were levied on imported foreign goods (charged at recognised ports) and excise was levied on domestic production.

Such widespread smuggling reached a peak of activity at the beginning of the nineteenth century during the Napoleonic Wars. It wasn’t all brandy, silk and tea however, another comestible which suffered from a high rate of tax was salt, both home produced and imported. The Wagon and Horses Inn, just north of the Hole of Horcum, was surrounded by treacherous and secretive moorland, it was also alongside the main road across the moors connecting the coast around Whitby and the south to Pickering, York and beyond. The name of the inn underlines the importance of the location for transportation, and because of this location it became a criminal hub. Untaxed salt was held at the inn, fisherman from the coast would bring in their fish to be salted and then moved on to be sold. Salted fish could be transported more widely and therefore could make more profit, as long as the salt was untaxed. Everyone knew what was happening and there were frequent raids by Excise Officers. The story goes that on one occasion a single Excise Officer managed to catch the felons by surprise, and he ended up murdered. Elements of stories then got muddled up together. The body is supposed to have been buried under the fire place, a tradition was established that the fire should never be allowed to got out else the devil would arise or the ghost of the murdered man would seek revenge or more prosaically the body might be discovered.

Later the Wagon and Horses was renamed the Saltersgate Inn, the wider site is now called Saltergate. It’s obvious what the first part of the name signifies, and the word ‘gate’ means a road. The Saltersgate Inn recently fell into dereliction, it is due to be demolished and the site redeveloped. So far no body has been found.

SOCIAL CAPITAL

Social capital is defined by Wikipedia as a form of economic and cultural capital in which social networks are central; transactions are marked by reciprocity, trust and cooperation; and market agents produce goods and services not mainly for themselves, but for a common good.

We’ve recently helped a PhD student from Bangor University by putting him in touch with North York Moors Farmers willing to answer questions about what it is that motivates them to engage (or not) with high nature value farming and/or agri-environment schemes.

The research being undertaken is aiming to identify social capital types within farmer groups. It is recognised that there will be significant impacts on farming communities, especially upland livestock farmers, as a result of agriculture policy changes post-Brexit. So having an understanding of how resilient communities are and how able they are to adapt to change will be valuable in the design and potential success of future land management schemes seeking to deliver environmental outcomes. An aim of this research is to try and understand whether high levels of social capital are a driver that encourages a farmer’s participation in high nature value farming and/or engagement in agri-environment schemes? whether a farmer’s participation leads to greater levels of social capital? or are there other drivers that come into play?  Whatever conclusions are drawn from this research, one thing is certain – there must have been some very interesting conversations being had around farmhouse kitchen tables over the past few weeks!

SUNDEW

On particularly wet peaty acidic areas of moorland you might find Round-leaved Sundew Drosera rotundifolia. It grows low to the ground with upright stems and small white flowers in the summer. Sundews use photosynthesis like many plants to make glucose for energy, but plants also tend to need nutrients and minerals usually obtained by their roots from the soil they grow in. But the wet soils on which this species live have few nutrients and minerals because these have leached away. Many plants would find this habitat too inhospitable but Drosera rotundifolia has a proactive solution to supplementing its diet. It has leaves with sticky inward curving hairs in which unsuspecting insects get trapped when they come to look for nectar, and are then slowly digested by enzymes. It is one of a number of carnivorous plants across the world.

Round-leaved sundew, Bransdale. Copyright NYMNPA.

Previously on the North York Moors A to Z … A, B, C, D, E, F, G, H, I, J, K, L, M, N, O , P, Q, R

An exceptional bog

Last year the Land of Iron commissioned an eco-hydrological assessment of Fen Bog(s) by consultants (Sheffield Wetland Ecologists).  An eco-hydrological assessment examines the workings of a water system and its wider ecosystems. Sunday was International Bog Day so to celebrate the complexity and variety of bogs – here is a very very simplified overview of that assessment. Any misunderstanding or misinterpretation is all mine.

View over Fen Bog. Copyright NYMNPA.

Background

Fen Bog(s) is at the top end of the Newtondale glacial channel in the east of the North York Moors. It’s part of the Newtondale Site of Special Scientific Interest (SSSI) and the majority of it is also designated as a Special Area of Conservation (SAC). Most of the site is a Yorkshire Wildlife Trust nature reserve, other parts are owned by the National Park Authority, the North Yorkshire Moors Railway and the Duchy of Lancaster.

Fen Bog(s) is a large peatland/wetland site, and according to the report “is of exceptional biological, palaeo-ecological and telmatological (to do with bogs) interest, especially as there are no comparable examples in the region or, indeed, in most of England”.

The bog happens to be within the boundary of the Land of Iron Landscape Partnership Scheme. The scheme focuses on the landscape area impacted on by the short but intense period of ironstone mining and railway development in the North York Moors. Intriguingly part of the Fen Bog(s) site has been subject to long-term modification since the Whitby–Pickering Railway line (now belonging to the North Yorkshire Moors Railway) was built alongside/across the site. The Partnership commissioned the report in order to get an holistic assessment of the existing data (of which there is a lot), and to identify the gaps and address these through additional field investigations, with the aim of increasing the understanding of the eco-hydrological functioning of Fen Bog(s) in order to help inform future management decisions. This management needs to conserve and restore its environmental value as well as allowing the continued functioning of the railway.

Historical Aspects

The Whitby & Pickering Railway was first opened in 1837, as a single-track, horse-drawn enterprise carrying freight between the two towns. Newtondale connects through the central moorland which largely separates the north and south of the North York Moros. Soon after the line was doubled and substantially rebuilt for steam propelled haulage with services starting in 1847.

Benham (An Illustrated History of the North Yorkshire Moors Railway, 2008) explains that Fen Bog(s) proved a “major headache” for the railway builders and that “Stephenson resorted to the same technique employed at Chat Moss when building the Liverpool & Manchester Railway. This involved stabilising the land by ‘pile-driving’ fir trees into the bog and overlaying them with sheaves of heather bound in sheep skin, together with more timber and moss.” In addition deep drains were dug alongside the railway through the mire to try and keep water off the track. The extensive drainage has tilted parts of the bog. It has also been suggested that it meant the bog turned from a topogenous system (source water mainly from the land) to an ombrogenous one (source water mainly from precipitation) – but the report considers this is unlikely. The railway’s embankments and sidings were built and maintained using railway ash, basic slag, limestone and basalt – all base rich materials imported onto the site which still have an impact.

The summit of the railway is a short distance north of Fen Bog(s), near the former location of the ‘Goathland Summit’ signal box. South of this the railway track skirts the western edge of the wetland, it is built mostly along the steeply-sloping edge so that its upslope side is on mineral ground or shallow peat whilst the mire side is over deeper peat. The railway line has therefore partly obliterated, truncated and drained much of the western edge of Fen Bog(s). Towards the southern end of Fen Bog(s), the glacial channel curves west and the railway here crosses the bog to the other side of the channel, thereby cutting across and separating parts of the Bog(s).

View of North Yorkshire Moors Railway crossing Fen Bog. Copyright NYMNPA.

Methodologies

Peatlands are strongly influenced by hydrology, chemistry, and vegetation.

The Fen Bog(s) report considers the hydrogeology including stratigraphy, surface profiles, and solid, wetland, and superficial (recent) deposits.

It also investigates the water supply in and the drainage out. All the different water features on the site are mapped – as pool, spring or seepage, stream/ditch with visible flow, water flow track, water filled ditch with no visible flow, damp channel, or seasonally wet channel. The main artificial drainage is associated with the railway including the drains on either side of the line, but there is also other historic drainage at the south end of Fen Bog(s) which was done to improve the land for agriculture.

Hydrochemical measurements were taken as part of the assessment to establish the current pH and also the electrical conductivity of the water at different points. There is a lot of variation across the site. It has been suggested that high pH readings i.e. alkaline are caused by leeching slag used in the construction of the railway track. Measurements from the recent assessment suggest that in terms of chemistry any effects of the trackway on the Bog(s) is either historic or localised. Because of the mix of chemistry Fen Bog(s) is classed as a Transition mire and this is reflected in its mix of vegetation (see below). The transition can be geographical or successional, or both.

There are a series of historic water table measurements at two specific points, from the 1970s to 1990s – one in ‘wet’ bog, rich in sphagnum, in the north, and one in relatively ‘dry’ bog, with a lot of heather, in the south. The report suggests the main reason for the more consistently higher water table at the northern monitoring point can be associated with the greater number and penetration of flow tracks across the mire, the number of groundwater outflows and a more consistent supply of telluric water (surface water and groundwater). Groundwater geology is always important in sustaining a high water table.

Looking into Fen Bog. Copyright Louise Cooke, NYMNPA.

Development and status

Much of the depth of peat at Fen Bog(s) is believed to sit in a hollow which decreases at its southern end. It has been suggested this hollow may have been a glacial or post-glacial lake. However it appears as if the mire developed on a dry surface, that is through paludification, and not by infilling a water body (terrestrialisation).

The lower layers of peat cores and sections collected contain the remains of tree species (Birch, Willow and Alder) and other plants (Reeds and Sphagnum) that suggest wet woodland. Then the higher up layers on top contain more plants and silt indicating the formation of swamp and a rise in the water level. This may be a consequence of wetter climatic conditions but also may partly be to do with human activity. There is an increase in non-tree pollen suggesting the removal of trees at the time, and the report postulates that the build-up of water on the site may have been due to it being artificially damned at the southern end. Sphagnum increases in the top level of peat, from c. 1100 AD atleat until the 19th century. The development of a Sphagnum-dominated surface on a reed-monocot swamp requires some isolation of the surface from more base-rich water sources which means the margins with inflow must have remained largely free of Sphagnum and a dome of peat therefore developed in the middle of the bog.

Fen Bog(s) can therefore be considered an embryonic raised bog, which has developed upon a protracted phase of reed–monocot peat that, because of the topography of the trough and the occurrence of marginal inflows, has been susceptible to flooding with telluric water until relatively recently. Because the system has developed across a shallow watershed, it can be regarded as an embryonic ‘sattelmoor’ (saddle bog). The report notes that this assessment is based on the centre and eastern margin of Fen Bog(s) – the western margin has been modified too much by the railway development and associated drainage to be useful as evidence. The modification led to a tilt of the mire’s surface towards the west.

Vegetation over time is the raw ingredients of a bog. The report reviews and updates current NVC vegetation classifications across the Fen Bog(s) site. It’s quite a mosaic. As well as non-mire vegetation such as dry grassland, bracken, dry heath and wet heath, there is also:

  • Weakly base-rich springs and soakways – base rich means a richness of chemical ions i.e. alkaline, a soakway is a narrow track of water flow where little or no water is normally visible. Supports plants such as Bog bean, Broad-leaved cotton grass*, Common butterwort*, and Black bog-rush*, as well as Sphagnum sp. and other bryophytes. Beyond the immediate Fen Bog(s) site there are base-rich springs and weakly base-rich soakways – where soils are acid rather than alkaline so it means the water ends up only weakly or not base-rich at all.
  • Acidic springs and soakways – supports plants such as Common sedge, Yorkshire fog and Marsh violet, as well Sphagnum sp.
  • Ombrotrophic bog – where the main source of water is precipitation. Supports plants such as Common cotton-grass, Cross-leaved heath and Bog myrtle.
  • Minerotrophic Bog – where the main source of water is watercourses and springs. Supports plants such as Purple moor-grass, Common yellow sedge and Carnation sedge.
  • Molinia mire – purple moor-grass dominated vegetation, also supports plants such as SundewsStar sedge and Bog asphodel
  • Nutrient-rich fen – these areas may be influenced hydrochemically either by base-rich springs, or by the base-rich material that make up the railway embankments/sidings. Supports plants such as Angelica, Tufted vetch and Water horse-tail
  • Carex rostrata fen – base-rich mire supporting plants such as Bottle sedge (this is the Carex rostrata), Marsh marigold and Ragged robin.
  • Pools and soakways with Carex limosa – supports plants such as Bog sedge* (this is the Carex limosa), Slender sedge*, and Bog pimpernel.
  • Wet woodland – these remaining woodlands are similar to that which began the formation of peat millions of years ago. Supports plants such as Grey willow, Downy Birch and Creeping buttercup.
  • Reeds and willow scrub – can also be classed as wet woodland. Supports plants such as Narrow buckler fern, Soft rush and Sphagnums.
  • Tall swamp and reedbeds – each at different stages of development with their own characteristics. One site which supports bulrush is presumably mineral enriched from the track ballast but this shows no sign of spreading out into adjacent vegetation without the enrichment. Another site, not yet colonised by willow scrub, supports plants such as Marsh pennywort, Water mint and Branched bur-reed.

* notable uncommon vascular plant species

Another view over Fen Bog. Copyright NYMNPA.

What next?

From the assessment the report goes on to outline the main management issues and to suggest restoration opportunities for the Fen Bog(s) site. These include vegetation control through gazing and fencing, monitoring the spread of reeds (Phragmites), clearing parts of the species poor scrub areas, retaining the wet woodland/scrub habitat, blocking and redirecting specific railway ditches, minimising the introduction of new embankment ballast material, and using engineered solutions to tackle subsidence problems. Interested parties will consider the recommendations and decide what is desirable as well as practically possible, in order to maintain this very important bog site that embodies a clash of natural and cultural heritage.

Postscript: There is a story that a steam locomotive sank into Fen Bog(s) at some point in the past, and remains there today. But this is just a story.

State of our Soils (and Wonderful Worms)

Sam Newton – Natural Heritage Trainee, Land of Iron

Charles Darwin was an undoubted genius, according to most people’s definition – so it should come as no surprise that he was interested in earthworms. He even wrote a book with the catchy title The Formation of Vegetable Mould, through the action of worms, with observations on their habitats.

Cartoon of Charles Darwin in Punch magazine (1881) - he studied worms for many years, even playing music to them!

Earthworms are fundamental. They are ecosystem engineers – a term associated with important ecological outputs, which can often be stalked by controversy because of the affects caused e.g. Eurasian Beaver (Castor fiber). However, everyone can get behind earthworms; they are the only species playing a significant role in pedoturbation and are a major player in pedogenesis.

What are pedoturbation and pedogenesis? Well, they’re words we should all know. They describe the process of mixing between soil horizons resulting in healthy homogenization, and the formation of soils through biogeochemical processes.

Organic rich woodland soil. Copyright Alasdair Fagan, NYMNPA.

Soil is the unconsolidated material on the top level of the earth in temperate climes. In the UK most plants grow in soil. Our soils are under pressure from erosion/loss, compaction and decline in organic matter. In the 2015 bestselling book, What Nature Does for Britain by Tony Juniper, estimated the annual cost from soil degradation is between £900 million and £1.4 billion, while studies suggest soils will be too degraded for production within around 100 harvests. The need for solutions is urgent.

These aren't sandbanks - this is the sediment (soil) runoff from the Thames, as seen from the International Space Station in 2014

Soil health targets are included in the Government’s new 25 Year Environment Plan. Further national measures are planned through legislation during 2018 to manage all soils sustainably, including devising a soil health index, and updating guidance on crop establishment and optimal tillage choice.

Earthworms are crucial for tackling these problems and maintaining the health of soils. Still little is known about earthworms, despite Darwin’s efforts. We know there are 29 species in the UK, split into four groups: composters living in organic rich vegetation, epigeics living amongst leaf litter, endogeics living in the soil, and anecics living in vertical burrows. They all eat (and so recycle) decaying material, help drainage and aeration, and are food for many other species (so crucial for biodiversity). The fact that all four groups and all the species have varying ecology enhances their benefits to the reducing of erosion, compaction and the loss of organic matter, therefore benefiting the entire ecosystem – including us.

It will be very important to increase our understanding of distributions and ecology of each earthworm species, to help us to properly conserve and encourage worms to be a vital partner in such a time of soil health concern.

What is known about worms...all earthworms are hermaphrodites - mating head-to-tail by covering themselves in mucus and exchanging sperm. From Science Learning Hub.

The Earthworm Society of Great Britain and Northern Ireland has information regarding the recording of earthworms, identifying different species, and further facts on their biology and ecology.

The British Society of Soil Science is supporting the advancement of soil science in the UK. The more we understand the resource the more we can do to conserve and enhance it.

A to Z: a rabble of Rs

R

RABBITS

Hares are native to Britain, but rabbits (Oryctolagus cuniculus) are not considered to be native at least not since the last Ice Age. Rabbits, also known as coneys, were introduced first by the Romans and then imported by the Normans in the early medieval period. Rabbits were valued for their meat, fur and skin. On southern facing slopes of the North York Moors, rabbits were farmed from the medieval period through to the 20th century using warrening structures. Warrens were artificially constructed with embankments, ditches and ‘pillow’ mounds. Particularly common were ‘Rabbit-types’ where rabbits were caught through trap doors which released into pits.  These artificial warrens allowed the rabbits to be managed (farmed) efficiently on a large scale.

In the late 18th and early 19th centuries felt from rabbit skins and fur was an important money making product for the south east corner of the North York Moors. Felt was in demand for hats and rabbit was an alternative to beaver. The industry slowly declined with the last warrener working up until the 1920s.  Many warrening sites have been lost as land has been re-used, but some large scale warrening complexes can still be traced in the Forestry Commission owned forests such as Dalby and Wykeham.

Rabbit, Westerdale. Copyright Ami Hudson, NYMNPA.

Wild/feral rabbits are now a particularly successful non-native invasive species, despite there being a number of native predator species.

Ranunculus sp.

As winter is losing its grip, hopefully the photo below will help brighten your day.

Grassland with buttercups. Copyright NYMNPA.

Ranunculus is the plant genus which includes our buttercup species and provides our countryside with vivid displays of yellow during the summer months.  There are lots of different species, and here are but a few found across Britain including the North York Moors, all with sunny yellow flowers.

Meadow buttercup R.acris: Look at a hay meadow in the summer and the chances are that it is this species that is predominant. It is an indicator of moist unimproved grassland, and although it grows in a wide range of soil types it is not tolerant of high nutrient levels. As it can survive cutting and is not palatable to grazing stock, old meadows and pastures are where it thrives best.

Creeping buttercup R.repens: This buttercup can, from a distance, give the impression that you are looking at a species rich hay meadow. The reality can be very different though as this plant is very tolerant of high nutrient levels and disturbed ground and is sometimes considered a problem weed. It is often found around field gateways where poaching and tramping make it difficult for other plants to survive, and in overgrazed fields where it remains untouched by stock and readily out competes less tolerant plants. One of the key differences between this species and meadow buttercup is the presence of rooting runners which allow this plant to spread very effectively and quickly cover bare ground. The species’ method of reproduction (cloning) meant it was used a few years ago for an interesting study into aging meadows. https://www.aber.ac.uk/en/news/archive/2009/june/title-77794-en.html

Bulbous buttercup R. bulbosus: This species prefers much drier conditions and, like meadow buttercup, is an indicator of unimproved grassland with a low tolerance to fertilisers. It is common on well drained neutral or calcareous soils and can be identified by its downturned sepals (when flowering) and a swollen stem base which can be identified by carefully scratching a small amount of soil away from the base of the plant.

But it’s not just buttercups. Also in the same Ranunculus genus, and providing a splash Lesser spearwort. Copyright NYMNPA.of colour in the early days of spring before the other Ranunculs is Lesser Celandine (R.ficaria). This is easily identified by its narrow, glossy yellow petals, low-growing form and heart-shaped mottled leaves. It’s usually noticeable as it is in abundance when other plants are still tentatively emerging from their overwintering.

Finally, brightening up bogs in the summer is Lesser spearwort (R.flammula) which thrives in wet places and can often be found growing with soft rush in unimproved habitats. The flowers look very similar to a buttercup, but it has spear-shaped leaves.

READING ROOMS

In the 19th and early 20th century there was a trend for the better off in society, to provide the means to try and ‘improve’ their local workforce i.e. the not so well off. Rather than people gathering in public houses to drink, debauch and mutter – the idea instead was to provide an opportunity for social, moral, intellectual and spiritual improvement for the local community. ‘…the more he knows, the less hasty, the less violent, and the more correct will be his judgment and opinions’ (from the Manchester Spectator 1849).

The philanthropic benefactors would be local landowners, local business people on the rise, new industrial entrepreneurs, and often the local Church including non-conformists e.g. the Methodists. Individuals or local committees of bigwigs, would gift their local community a Reading Room, first in growing towns and then also in rural villages. Any local community who wanted to think themselves liberal and progressive needed a Reading Room. The provision of a building where men could read instructive newspapers, educational periodicals and improving books promoted the popular ideas of self-improvement and self-help. Reading Rooms were the forerunners of public libraries. It wasn’t all reading – they also hosted useful lectures and respectable entertainments as well.

There are a number of Reading Room buildings remaining in the North York Moors, some still used as community buildings and others converted. It is interesting that a number are clearly connected to industrial populations such as that in Rosedale, but others are located in more rural communities such as Boltby, Lastingham and Runswick Bay.

ROBERT HESELTINE HUDSON

“Rarely does a case, even of murder, excite such an intense interest as that which has been taken by the general public in the charge against Robert Heseltine Hudson, of the wilful murder of his wife and child on Roper Moor, near Helmsley, on the 8th of June last.”

 “Accused was accommodated with a chair and remained remarkably quiet throughout the trial. He certainly had not the look of a murderer. There was nothing dreadful in the dark sallow countenance, nor repulsive in the black hair, eyebrows, and bearded face, with cultivated moustache trimmed in imperial fashion. The eye was steady and the body restful, and an expression of ease and indifference seemed reflected in a faint smile upon the lips which looked more natural than feigned. Hudson, for some reason, had practically nothing to say. He sat throughout the evidence without manifesting any perceptible distress and it was impossible to judge of the man’s inner consciousness from his appearance…What did seem probably to many observers was that Hudson had quietly resigned himself to his fate…”

From the Yorkshire Gazetteer Saturday 27 July 1895

Robert Hudson’s family was from near Helmsley, he went to school at nearby East Moors. His parents then moved the family to Darlington and as an adult Robert Hudson worked in Liverpool, Sheffield and Nottingham. However in May 1895 Hudson, then a house furnisher’s assistant, brought his wife Kate and their son Heseltine who was not yet one, back to where he had started from. They lodged in a house on Bondgate, Helmsley.

Robert Hudson took his family out for walks and drives in the local countryside – it was reported that Mrs Hudson complained that the places they visited were lonely. On 8 June Mr Hudson returned but his wife and child did not. He told his landlady that they had gone to visit an aunt in Hovingham. Hudson then swiftly disappeared on the 3.39 train to York. Suspicions were aroused resulting in a search of the lonely local countryside. After a while a recently dug hole was found under a clump of trees on Roppa Moor. The bodies of Kate and Heseltine Hudson were found together in the hole covered by a thin layer of soil. Their throats had been cut with a carving knife; Mrs Hudson’s hands were terribly injured suggesting she had struggled to stay the knife.

Hudson was tracked down to Birmingham and arrested, he was brought back first to Helmsley to be committed for trial and then taken to York Crown Court. The evidence was pretty overwhelming. Hudson had bought a spade from a Helmsley ironmonger and was seen cycling about with the spade tied to his bicycle. The spade was later found on Roppa Moor. A local man had come across the hole on Roppa Moor a couple of days before it was used as a grave. Various other local people identified him as a man they had seen acting suspiciously on and around Roppa Moor. Soon after the ‘disappearance’ of his wife Robert Hudson was advertising for a new wife “Bachelor, tall, dark, age 27, wishes to meet with lady of some means, with a view to early marriage”. There was also a pocket book in which Mr Hudson had written on 15 June – “One week from the saddest event in my life, at ten to one o’clock, and I am living yet”. The jury considered their verdict for c. 6 minutes. Robert Hudson was found guilty.

Robert Hudson did not directly confess to the murders, but he did blame bad company for his predicament and expressed repentance. He was hanged at York Castle on 13 August 1895.

ROMANS (1st to 4th centuries AD)

Following on the heels of trading links the Roman invasion and then entrenchment across most of Britain  started with temporary military installations and infrastructure including connecting roads to maintain control. This was overtaken with more permanent military bases, as well as the establishment of towns, industrial centres and civilian farmsteads. Romanisation of society was backed up with military might, but at the same time the lure of Roman luxuries, the value of Roman technologies, and the promise of Roman advancement and power very much helped its spread.

Unlike the Iron Age native population, the Romans weren’t interested in living on the moors part of the North York Moors. Most Roman related remains are along the southern edge, close-ish to Malton and York which were major Roman towns. There are a number of minor “villa” complexes (Romano-British farmsteads) at Beadlam, Spaunton and Blandsby Park and the remains of two forts and a military camp at ‘Cawthorn Camps’.

Romans at Cawthorn, 2010. Copyright NYMNPA.

There is another early fort at Lease Rigg in the north of the North York Moors. This site includes ramparts, barracks, stables, a granary, a praetorium (Officer quarters), and a principia (main building for admin and religion). The forts at Cawthorn and at Lease Rigg are connected by Wheeldale Road/Wades Causeway, which is recorded as a Roman road. Because of the lack of quality it has been suggested it isn’t actually a Roman road at all.

The North York Moors Historic Environment Record includes a number of Roman finds including pottery, tessalie (mosaic tiles), coins, armilla (metal armband), beads, weights, pins, and altars.

There are also a number of Roman signal stations along the coastal cliffs from the 4th century. The best example in the North York Moors is at Goldsborough. There might also have been a signal station at Ravenscar – the evidence for this is an engraved dedication stone identified in the 18th century, but this might have been brought onto the site from somewhere else after the Roman period. The stone reads IVSTINIANVSPP VINDICIANVS MASSIERIV(RR)/(PR) MCASTRVMFECIT A….0. (JUSTINIANUS COMMANDER  VINDICIANUS…PRAEFECT OF SOLDIERS BUILT THIS TOWER AND FORT FROM GROUND LEVEL). Signal stations were built towards the end of the Roman period to guard against the growing threat of Angles and Saxons from the sea. By this time people on the edge of the Roman Empire were having to look after themselves because as the empire contracted it was clear no one was going to come and rescue them. The end of the Roman period fizzled out slowly. Often the new invaders would use the same sites, carefully chosen for their resources and setting. For example there is evidence that Cawthorn Camps was subsequently re-used as an Anglian settlement.

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

Conservation recruits

Abi Duffy – Conservation Trainee and Sam Newton – Natural Heritage Trainee

Abi Duffy, Conservation Trainee. Copyright NYMNPA.I’m Abi Duffy, and I have recently started as a Conservation Trainee. I graduated from the University of Liverpool with a degree in Geography in July 2016 and since then I have been working towards gaining employment within the conservation sector. I am really interested in developing my knowledge and experience in this two year position with the National Park.

Sam Newton, Natural Heritage Trainee. Copyright NYMNPA.My name is Samuel Newton and I have started in the position of Natural Heritage Trainee with the National Lottery funded This Exploited Land of Iron Landscape Partnership Scheme. I have always been interested in the environment, leading to my graduation from Newcastle University with a degree in Ecology earlier this year. I am keen to use this opportunity to gain as much experience as possible of working in conservation.

Our first two months have been both varied and interesting as we’ve been contributing to a wide range of projects. We’ve taken advantage of the end of summer to be out in the field most days surveying.

Water vole surveying

One particularly memorable day was water vole survey training, for which we headed up to Fylingdales. This surveying entails walking a stretch of stream looking for signs of Water vole (Arvicola amphibious). The most obvious signs are droppings, which are ‘tic tac’ shaped and tend to be green, and are used for territory marking. Where droppings are flattened and more have been deposited on top this creates a ‘latrine’. We also looked for piles of nibbled grass, with a 45° cut angle at the end – characteristic of voles, as well as for burrows and footprints.

The training links in with our Water vole project which is aiming to secure the few remaining populations of Water vole within the North York Moors. The animals have North York Moors Water Vole. Copyright Elspeth Ingleby, NYMNPA.suffered from habitat loss and also the spread of invasive American mink. I (Sam) have been mapping water vole and mink survey results, mostly collected by our dedicated group of Water vole survey volunteers. These records create a base from which management of habitats and also mink can be carried out.

Botanical Surveying

We have been visiting species rich grasslands across the North York Moors, with a range of different underlying ecological conditions. By surveying the plant species and their abundance on these sites we can try and ensure management fits the individuality of each one, and that certain species are not being lost or becoming dominant to the detriment of others. Our Linking Landscapes volunteers also survey grassland within the National Park each summer; many volunteers survey the same site each year which helps identify changes. The volunteers send in their results to us for analysis.

Some of the interesting and beautiful flowers we have seen so far include Eyebright (Euphrasia officinalis), Common Spotted Orchid (Dactylorhiza fuchsia), Harebell (Campanula rotundifolia) and Fairy Flax (Linum catharticum). We also joined in with the Conservation Volunteers cutting some of these grassland sites where they’re not grazed and importantly raking off the cuttings to stop the grasslands becoming too nutrient rich. Nan Sykes’ book ‘Wild Flowers of North East Yorkshire’ has proved invaluable in helping improve our botanical ID skills.

Harebell. Copyright Sam Newton, NYMNPA.

MoorFest

As part of National Parks Week back in August, I (Abi) got involved with a MoorFest event at our Sutton Bank National Park Centre letting people know about the species rich grassland resource within the North York Moors. We had many families chatting to us about wildflowers and asking us questions about the grassland. This was a good way to help communicate to the wider public the work that farmers and the National Park do together to conserve and enhance grassland sites.

Moonwort at Sutton Bank. Copyright Ami Walker, NYMNPA.The triangular meadow out of the front of the Sutton Bank National Park Centre is a great example of such grassland. Back in June, before beginning in our roles, we both took part in a Volunteer training day there; we found the rare fern Moonwort and several Common Spotted Orchids among a vast array of species. This site is a good quality species rich grassland in top condition, and with continuing management we hope to keep it that way.

Triangle Meadow, Sutton Bank - Common spotted orchid at the forefront. Copyright Ami Walker, NYMNPA.

West Arnecliff Woodland Survey

In early August we were given the opportunity to follow up on research work done by the previous Research Student at the National Park, Sam Witham. Sam had been investigating the impact of deer browsing in woodland by constructing small exclusion enclosures, in order to establish whether these allowed greater natural regeneration. This is part of the National Park’s long term PAWS restoration project. Non-native conifers had already been removed from this site at West Arnecliff and the continuing research is to help understand how best to assist the regeneration of the Ancient Woodland features and habitat.

Japanese knotweed surveying

Something else we have been involved with is the River Esk project – in particular surveying stretches of the river for Japanese knotweed (Fallopia japonica). This destructive invasive has the potential to spread rapidly along the river banks generating sedimentation and damaging the river environment. There has been control work over the last decade but it’s important to keep on top of the plant and where it is coming back it needs to be treated as soon as possible to prevent a new outbreak. So the surveying is important and has become a bit of a right of passage for new members of the Conservation Department.

Conclusion

So far we have really enjoyed the first two months in our new roles We are looking forward to going out into the field even more and meeting and working with the land owners and land managers who shape the landscape of the North York Moors.

It is great to have the opportunity to understand and contribute to the work the National Park is doing, while learning about working in conservation at the same time.

Abi, Sam and Bernadline surveying in Rosedale. Copyright Elspeth Ingleby, NYMNPA.

A to Z: a preponderance of Ps

P

PAWS

Where woodland has existed for at least the last 400 years (c. 1600 AD) it provides an ‘ancient semi-natural woodland’ habitat. Around 4% of the North York Moors National Park is classed as ‘Ancient Woodland’ according to Natural England’s Ancient Woodland Inventory. In some places woodland will have existed for much longer.

As well as the removal of woodland, particularly over the last century, there is another slower acting less visible threat to the continuation of ancient semi-natural woodland. This is where ancient woodlands have been planted up with trees such as conifers to create plantation forestry. These sites are still recorded on the Ancient Woodland Inventory, and categorized as ‘Plantations on Ancient Woodland Sites’ (PAWS). This conversion leads to a detrimental decay of the ecological value of the woodland habitat from the shading caused by evergreen conifers, the acidic modification of soils, and potentially the management of the woodland to ensure maximum timber production. As well as the gradual decline of woodland flora, mycorrhizal fungi and native tree species; historic features within the woodland and the landscape value of the ancient woodland are also at risk.

Example of PAWS (Plantation on Ancient Woodland Sites) with bare slopes. Copyright NYMNPA.

Some habitats can be created/re-created, but when Ancient Woodland is lost it’s gone for generations. However restoration can be possible if it’s not too late. PAWS restoration i.e. management to maintain/enhance the ancient semi-natural woodland habitat elements, comes in many forms and scales from the removal of non-native invasive species like Rhododendron, to the replacement of conifers with predominantly native trees. Like most things to do with woodland, restoration takes time. Partial or limited restoration is often worthwhile, and maintaining the management and value of a woodland is often more beneficial than restoring but then abandoning it. The National Park Authority is keen to work with owners of PAWS to explore what might be done to conserve this significant element of our local natural heritage.

Small scale conifer removal and planting with native species on PAWS slopes. Copyright NYMNPA.

 Pecten Seam

The ‘Pecten Seam’ is part of the geological Cleveland Ironstone Formation made up of a number of ironstone seams formed one on top of the other during the Early Jurassic period (c. 199 to c. 175 million years ago). The ironstone seams are made up of shales and sideritic (iron carbonate)/chamosatic (silicate of iron) ironstone which settled at the bottom of the shallow sea across the area which now includes the North York Moors (see also Polyhalite below). The seam is called Pecten after the numerous animal fossils found within it from the Pecten genus (large scallops).

Large scallop shell (Genus - Pecten) from http://www.bgs.ac.uk

The Pecten Seam outcrops around Grosmont in Eskdale and is more important in local history for what it suggested rather than what it delivered. It was the identification of the ironstone in the ‘Pecten Seam’ during the construction of the Whitby and Pickering Railway in 1836 which led to the outbreak of ironstone mining during the nineteenth and twentieth centuries in the North York Moors and Cleveland Hills (see This Exploited Land of Iron Landscape Partnership Scheme). The Pecten Seam was the second ironstone seam down (second latest) and quickly turned out to be of a poor quality, so it was the ‘Main Seam’ on top (the latest) which was largely exploited by the local ironstone industry as it was higher up and so easier to access, it contained more ore, and it was thicker than the other seams making it more cost effective to mine.

On top of the main ironstone seams were further sedimentary layers of shale containing jet, alum, coal, and further ironstone all of which have been exploited at one time or another in the North York Moors.

This Exploited Land of Iron LPS logos

Picturesque

The word picturesque was first used in the latter half of the 18th century to describe a scene worthy of being painted. It has since come to mean traditional and maybe a bit twee, but originally it meant an image that would stir the sensibilities of every right feeling man (and woman) because of its aesthetics and sublimity. The ‘natural’ and dramatic were in fashion and to not be able to appreciate the beautiful dread inspired by a landscape or view was a poor reflection on a gentleman’s character. The North York Moors did not have the grandeur of the Lake District’s mountains or the awe of the glaciers of the Alps, but it was not without its picturesque attractions.

JMW Turner engraved Rievaulx Abbey in 1836 from sketches he made in 1812. The view contains mediaeval romantic ruins (the might of nature overwhelming the vanities of man), wild woods and Italianate steep hills, a glowering sky and rustic peasants: all highly ‘picturesque’. The ruins of Rievaulx Abbey belonged at the time to Duncombe Park, the Estate had both a ruined abbey and a ruined castle (Helmsley) with which to create its own ‘natural’ picturesque landscape for the pleasure and wonder of the Duncombe family and their friends.

Rievaulx Abbey engraved 1836 Joseph Mallord William Turner 1775-1851 Bequeathed by Travers Buxton 1945

Pignut (Conopodium majus)

Pignut is a member of the carrot family, along with parsnip, fennel, parsley and less ‘benign’ plants such as hemlock and giant hogweed. Like some other members of the carrot family it has an edible tuber. The small tubers have been eaten by pigs hence its most common name (another name – St Anthony’s Nut – is because St Anthony is the patron saint of many many things including swine herders), and also by people who like to forage. Obviously never ever eat anything unless you are absolutely definitely sure what it is, and don’t dig on other people’s land without their permission.

Pignut is a short plant which flowers in early summer with tiny delicate white umbels (flat topped flowers on stalks like umbrella spokes coming from a single stem) that together resemble lace. It’s a tough little thing containing both male and female parts and therefore is self-fertile relying on pollinators like hoverflies, and also moths. It is an indicator of grassland/woodland pasture and can be found on road verges and alongside hedges where fragments of old pasture and woodland survive.

Pignut - from http://www.seasonalwildflowers.com/pignut.html

 A Particular Pigsty

Usually people probably wouldn’t want to go on holiday to a pigsty, however there is a particular listed building in the North York Moors that isn’t many peoples’ idea of a home for pigs. Described in the listing description as “a large dwelling for pigs” this pigsty was built in the late nineteenth or early twentieth century by John Warren Barry – a Whitby shipbuilder and ship owner who was the owner of Fyling Hall near Robin Hood’s Bay. He seems to have been inspired by the classical architecture he came across on his travels around the Mediterranean as the pigsty is built in the style of a Greek temple with timber pediments at both ends and a portico of six timber columns with Ionic capitals in its south side. It contained two small sties, and was intended to provide accommodation for two pigs, whose attendants were to be housed in a pair of neighbouring cottages. The pigs were apparently unimpressed and unappreciative of their sumptuous quarters.

In time, lacking any obvious practical use, the Pigsty fell into a poor state of repair. Luckily it was purchased by The Landmark Trust in the 1980s. The Landmark Trust aims to preserve remarkable buildings by providing them with new purpose. The pigsty has been restored, converted and extended for use as a holiday cottage. The extension is minimal which enables the principal building to remain the main focus and the conversion works have managed to maintain the original character. The Pigsty certainly adds to the diversity of the built conservation of the North York Moors.

The Pigsty, Robin Hood's Bay. Copyright The Landmark Trust.

It was apparently Mr Barry’s intention that the pigs should enjoy unrivalled views across Robin Hood’s Bay – a privilege that holiday-makers instead are fortunate to have today!

Primitive Methodists

In a number of villages and dales in the North York Moors as well as an established Church building there will be a Methodist Chapel building (sometimes known as a Wesleyan Methodist Chapel), and in some there also is, or was, a Primitive Methodist Chapel in close proximity. In Chop Gate the Wesleyan Chapel and the Primitive Chapel stood back to back, as if choosing to ignore each other.

View of the Rosedale Abbey Primitive Methodist Chapel, in close proximity to the Church of England church and churchyard. Copyright Rosedale History Society.

Methodism had made early in-roads in the North York Moors in the 18th century where the location of the area, out on a limb, provided a home for dissenting religion. The Primitive Methodist ‘connection’ splintered off from the Methodist Church at the beginning of the 19th century when the preachers William Clowes and Hugh Bourne were dismissed from the main congregation. Primitive Methodism was so called because its converts believed it was they who were following more strictly and truly in the footsteps of original Methodism and its founder John Wesley. One particular aspect of early Primitive Methodism was the holding of open air prayer meetings encouraging evangelical conversions, as the Wesleys had done in the century before. This was at a time when the meeting of ordinary people in groups, unsanctioned by Society and Authority, were considered a danger to the status quo.

‘On Sunday, July 30th [1820], he [William Clowes, one of two founders of the Primitive Methodist connection] conducted a camp-meeting [open air meeting] upon a depressed part of a mountain called Scarth Nick [near to Osmotherley]. About two thousand persons were supposed to be present. The Word preached was attended with much Divine power; the prayers of the people were very fervent, and many sinners were deeply impressed. Four or five persons were made happy in the love of God; one of whom, a farmer, was so overjoyed that he called upon the hills and dales, and every thing that had breath, to help him to praise God. He afterwards hastened home, and told his wife and servant what the Lord had done for his soul, and they also sought and found the salvation of God….He [Clowes] had invitations to Weathercote, and to Auterly [now Orterley] in Bilsdale [these two sites are still farmsteads], at both of which he preached with great effect, and many were brought to God. Many exciting scenes were witnessed during his missionary tour in this district, and a great awakening took place among the inhabitants, which we can not particularize’.
A History of the Primitive Methodist Connexion by John Petty, 1864.

The Primitive Methodists emphasized the role of the lay congregation rather than a clerical hierarchy and this included a sense of equality that allowed for women preachers. They valued simplicity in worship and believed that their Christianity demanded political engagement in the modern world. Primitive Methodism appealed particularly to the rural poor and the industrial immigrant labourers, to whom the promise of reward in heaven might have seemed like a longed for relief.

‘Come, ye sinners, poor and wretched,
Weak and wounded, sick and sore,
Jesus ready stands to save you,
Full of pity, love and power:
He is able,
He is willing; doubt no more’
The Primitive Methodist Hymnal, 1889

The Primitive Methodist Church in Britain reunited with the main Methodist Church in 1932.

Polyhalite

Polyhalite is a mineral lying deep (over 1,000 metres) under the North Sea and along the eastern edge of the National Park; it’s a type of Potash. It was formed over 260 million years ago as salts were deposited in a shallow sedimentary sea as it evaporated. Polyhalite specifically contains potassium, calcium, magnesium and sulphur; useful components in agriculture fertilizer.

Alongside the existing Cleveland Potash Mine at Boulby (ICL UK), over the next 5 years the new Woodsmith Mine (Sirius Minerals) is being constructed in the National Park to extract naturally formed polyhalite for commercial use. The new mine is expected to be operational by 2021 and whilst the development work is taking place, a whole range of compensatory and mitigation projects to enhance the natural and historic environment and to promote tourism in the wider area are being delivered. The first of these initial priority projects for this year include the upgrading of a 4km section of the Coast to Coast at Littlebeck and improvements to the Lyke Wake Walk, repairs and renovations to the Grade 1 listed Old St Stephen’s Church at Robin Hood’s Bay with The Churches Conservation Trust, and habitat restoration within Harwood Dale Forest.Old St Stephen's, Robin Hood's Bay. Copyright NYMNPA.

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

Attritional conservation

Seas of Green – UPDATE

Last September we reported on the installation of black plastic sheeting on a couple of ponds in Bilsdale with the aim of shading out the non-native invasive plant species – New Zealand pigmyweed Crassula helmsii – which was accidentally flourishing there. The idea was to give the plant a taste of its own medicine by depriving it of light.

By two months the pigmyweed was becoming etiolated – pale and weakened due to the loss of sunlight – indicting the sheeting was effecting growth.

Crassula helmsii two months after black plastic sheeting applied. Copyright NYMNPA.

The sheeting was left on the two ponds through the winter and spring, and a second survey was carried out this July. The sheeting has killed off 100% of the pigmyweed that was covered, however pigmyweed plants remain around the edges of the ponds, where it was difficult to install the sheeting due to the surrounding vegetation and irregular shape of the pond edges.

One of the ponds covered by the black plastic sheeting July 2017. Copyright NYMNPA.

Contrast between the remaining Crassula helmsii at the edge of teh pond and under where the sheeting where the plant is now dead, July 2017. Copyright NYMNPA.The National Park Authority’s southern Apprentice Team will be spraying off the pigmyweed round the edge with a herbicide. The sheeting will remain on the ponds until at least late autumn to try to finish off this invasive species once and for all in this location, allowing the biodiversity of the ponds to recover.

Other non-native invasive plant species

New Zealand pigmyweed is one of the most common non-native invasive plant species found in England, along with Common rhododendron Rhododendron ponticum, Himalayan balsam Impatiens glandulifera, Japanese knotweed Fallopia japonica, and Giant hogweed Heracleum mantegazzianum. They were all introduced into the UK as garden plants. All of these species are present in the North York Moors to some extent, and work continues to control these particular plant species, without natural competition and predators, that can have such a detrimental effect on the area’s habitats and water quality.

We’re grant aiding the removal of rhododendron from important Plantation on Ancient Woodland Sties (PAWS), to help let in the light and give native ground flora a better chance of survival. Rhododendron can harbour the Phytopthora ramorum pathogen which is a great threat to forest species such as larch.

Himalayan balsam can be pulled out/cut down by hand but this needs to be done before the seeds are setting (August/September) because one shake of a plant can release 1000s of seeds that can travel up to seven metres potentially creating 1000s of new plants. Repeatedly removing the plants from a location before they can seed over a number of years will eventually mean this annual plant no longer regenerates there.

Japanese knotweed is trickier to tackle because it needs to be treated by careful herbicide injection. Repeated treatment can kill the rhizome which is so effective at spreading. The accidental breaking up of live rhizomes can spread the plant expediently. Careful disposal is vital.

We’re currently making best use of four years of funding from Yorkshire Water to tackle Himalayan balsam and Japanese knotweed along the banks of the Rivers Esk, Rye, Seph and Seven, through whole catchments and sub-catchments starting at the top. Both species are particularly menacing to river habitats as they out compete evergreen native species and die back in the winter leaving banks bare and prone to erosion increasing the sediment loads in the water.

Giant hogweed isn’t quite so common as the other plants in this area. It can be dangerous to deal with because its sap can burn skin so it needs to be treated with care. It can be cut down or tackled with herbicides, but like all non-native invasive species repeat control will be necessary to achieve eradication at a site.

There are lots of initiatives now across the country to address the threat of these out of place species, it can sometimes seem overwhelming but concerted repeated local efforts can have an effect.

Hitching a free ride

Roy McGhie – Conservation Project Assistant

You might remember at least something about photosynthesis from school – it’s the chemical process by which plants absorb light energy, which reacts with carbon dioxide and water, and produces glucose and oxygen. Photosynthesis provides food/energy for plants, which ultimately provide food/energy for every animal on the planet. It’s also the reason most plants are green – photosynthesis occurs in chloroplasts within plant cells, which contain the green chlorophyll that absorbs the light energy.

However some plants have evolved ways to get the energy they need without having to photosynthesise. Instead, they do it by parasitising other plants. Orobanchaceae is one such family of parasitic plants. There are varying levels of parasitism within the family, ranging from those that are hemiparasitic (only deriving some of their nutrients from other plants) to those that are holoparasitic (obtaining all of their nutrients from a host plant).

Toothwort is an example of a holoparasitic plant. I’ve found some particularly nice specimens of Common toothwort (Lathraea squamaria) growing on our doorstep in Helmsley. Note the lack of green colouring because the toothwort doesn’t photosynthesise, and also the resemblance to teeth. Toothwort feeds off the roots of woody plants, such as hazel, elm alder, and also walnut. There is a particularly fine walnut tree close by.

Common toothwort - NYMNPA Office, Helmsley. Copyright Roy McGhie, NYMNPA.

Common toothwort, also sometimes known as the Corpse Flower - NYMNPA Office, Helmsley. Copyright Roy McGhie, NYMNPA.

As I mentioned above, hemiparasitic plants are those that derive only some of their nutrients from the host plant but photosynthesise as well. Examples include Yellow rattle, Eyebright, Bartsia, Lousewort and Birds-nest orchid. We’ve commended Yellow rattle (Rhinanthus minor) before on this blog. Yellow rattle can photosynthesise but also parasitizes grasses and other plants nearby. Because of its parasitic nature it can be a useful plant to reduce the vigour of grasses which in turn allows other wildflowers better opportunity to thrive. A recognised technique for establishing a wildflower meadow is to sow Yellow rattle initially to help ensure the grasses don’t out-compete everything else during the establishment phase. But it’s important to remember that Yellow rattle is an annual and like most annuals, it shouldn’t be cut or grazed until late July so it has had time to set seed and so has the chance to grow again next year.

Yellow rattle - copyright NYMNPA.

Plant relationships definitely aren’t as straightforward as you might think – and we haven’t yet featured the carnivorous sundews or butterworts (a future blog post). So the next time you’re out and about where ever you are have a closer look at what’s growing around you – it may not be as innocent as it seems!

Recipes for meadows

Aside

Coming up this Saturday (1 July) is National Meadows Day.

Wildflower meadow in the Hole of Horcum. Copyright NYMNPA.

There is a partnership project called Save our Magnificent Meadows, led by Plantlife and largely funded by the Heritage Lottery Fund which promotes the importance of hay meadows and other species rich grassland types for the country’s natural and cultural heritage..We’re not one of the landscapes where the project is directly working but we have similar aims and objectives for North York Moors grasslands too. Save our Magnificent Meadows has a really useful Advice and Guidance resource which can help land managers work out what kind of grassland they have (e.g. acid grassland, neutral grassland, calcareous grassland, cornfield flowers), what type it currently is (e.g. improved, semi improved, unimproved) and then how best to manage it for conservation benefits. In the North York Moors we have a lot of improved grassland like most places, but we still have an amount of unimproved grassland and a bigger amount of semi improved grassland. Semi improved grassland – i.e. some characteristic species found in low frequency – can have great potential for biodiversity enhancement.