Gwennap church is mostly from the 15th Century (including the detached bell tower) although a few elements (such as the piscina and south porch) are likely to be from Norman times. The church was extended to accommodate the growing population of miners in the area and the north aisle was added at least a century later. The church underwent a Victorian restoration in 1862 by which time the mining community in the parish numbered 10,000. During the restoration, an ancient ornamented cross shaft found in the church wall was put to one side but was accidentally picked up by builders and used for the vestry foundations. A central gallery, described as "an eyesore", was removed in 1882 and another restoration took place in the 1890s.
The industrial revolution fuelled a huge demand for copper for constructing things like steam boilers, brass instruments and even ship hulls. By the late 18th Century, more copper was being mined in Cornwall than tin.
After John Taylor's discovery in the 1820s of rich copper reserves within old mines in Gwennap parish, the resulting boom resulted in a huge population growth in the previously tiny parish. In the 1830s, Gwennap parish had nearly triple the population of Truro!
The first record of the settlement of Gwennap is from 1199 when it was spelt Lamwenep. The first part of the name is from the Cornish word lann, meaning an early mediaeval religious enclosure, typically oval in shape. The second part of the name is associated with the saint to whom the church is dedicated - St Weneppa.
The seeds of camellia plants contain oils. In East Asia this is used by hundreds of millions of people as a cooking oil. In Japan it's used for hair care. It's also used to clean and protect the knife blades.
The Trevince Chemical works was located at the bottom of the hill in the area behind the fences to the right.
The Trevince Chemical Company set up a factory before the late 1870s on the old workings of United Mines. It produced arsenic and there was also a streamworks for tin. Additional capital was raised by the sale of 200 shares in 1881. Unfortunately the price of arsenic collapsed and it closed in 1884. By 1893 it had reopened and the buildings were still shown as in use on the 2nd edition of the OS map published at the start of the 20th Century. The buildings were still standing in the 1960s but by the end of the 20th Century, the site had been cleared.
Rhododendrons are so successful in Britain that they have become an invasive species, crowding out other flora in the Atlantic oak woodlands. They are able to spread very quickly both through suckering along the ground and by abundant seed production. Many of the root stocks of ornamental specimens have suckered off some new common rhododendrons which have then out-competed the ornamental tree and killed it off!
Conservation organisations now classify the rhododendron explosion as a severe problem and various strategies have been explored to attempt to stop the spread. So far, the most effective method seems to be injecting herbicide into individual plants which is both more precise and effective than blanket cutting or spraying.
The lane is named Squire Lane and passes Squire House. Squire Mine was located to the left.
The meaning of the word "squire" has changed considerably from mediaeval times when it was a term used for a knight's apprentice. From the late 17th Century, the term was used to mean "lord of the manor". The connection with the previous use of the word may be that many landowning families could trace their ancestry to conquering Norman knights.
The first record of the settlement of Carharrack is from 1290 when it was spelt Carrarthek. The first part of the name is from the Cornish word for fort. The rest may be the name of the owner. Although arth is a Cornish word meaning "height", it is thought more likely in this case that this was part of a personal name rather than a description of the fort's location.
During the 18th Century in Oxford, the Wesley brothers began practising their rigorous holy lifestyle which was mockingly referred to as Methodism by their peers due to their methodical practices. John Wesley began open-air preaching to recruit followers to his movement and formed small classes for each community where followers would receive ongoing religious guidance. Wesley always advocated the practise of Methodism as an extension of the Anglican faith and encouraged his followers to attend the parish church regularly. Nevertheless, senior figures within the Church of England feared the effects (or perhaps popularity) of Methodist practices, suggesting that an overdose of the Holy Spirit might be unhealthy for weak minds.
Japanese knotweed was introduced into the UK in the early 19th Century as an ornamental plant but has escaped into the wild. It spreads via underground stems (rhizomes), forming a dense colony that out-competes native vegetation. A new plant can propagate from a tiny fragment (the weight of a grain of salt) of rhizome or stem which is how it spreads to new locations. Consequently cut plant material is classified as "controlled waste" that needs careful disposal and mechanical vegetation management techniques such as strimming cause it to spread more widely rather than controlling it. Even some herbicides can cause it to either put up more shoots or go into a dormant state and re-shoot several years later. It evolved to grow in the harsh environment of active volcanoes so is able to come back from having all its foliage scorched.
If you spot Japanese knotweed on a public footpath, please use this form to report it. The form asks for a grid reference. One way to get that is to use Cornwall Council mapping on a computer where the grid reference of your mouse arrow is shown at the bottom of the screen as you move it around the map.
Foxgloves have a life cycle which spans two years. The seeds germinate in spring and during their first year they produce a "rosette" of large, velvety green leaves with toothed edges. These are particularly noticeable from October onwards once other vegetation has died back. The leafy foxglove plants remain dormant throughout the winter, ready for a quick start in the spring.
Wheal Damsel operated in this area.
Wheal Damsel started in about 1795 by driving an adit (horizontal tunnel along which water could drain) and tunnels above this to find veins of ore (lodes) Although some small vertical lodes were found, the mine wasn't very productive and nearly closed. However, when a small tunnel was created between different levels to connect the main tunnels, it struck an incredibly rich area of copper ore and by 1806 Wheal Damsel became the most productive mine in the area. After 1818, the mine was operated intermittently, initially for copper, later for tin and finally for fluorite.
Sycamore flowers are pollinated by flies such as bluebottles rather than the wind. Within the female flower, two of the carpels (reproductive parts) are fused together. These develop into the pair of fused seeds with their "wings" at an angle. When the seeds fall, this creates the "helicopter" action that allows the seeds to be caught and carried by the wind as they slowly spiral downwards.
The area where you join the road is known as Lower Trevethan and the area near the bend is Higher Trevethan.
The first record of the settlement of Trevethan is from 1302 as Trefudon. The tre- part of the name implies it dates from at least the early mediaeval period when Cornish was spoken by landowning families. In 1516, it was recorded more faithfully as Trefuthyn which is from the Cornish for "meadow farm" (tre vuthyn).
Cathedral mine operated in the area on the left.
Cathedral mine began in the 18th Century focusing upon a group of small copper lodes near the centre of Carn Marth. It was originally known as Jengenter but was renamed after the Wesleyan "Cathedral" of Gwennap Pit. The mine was active between 1827 and 1842, was re-opened after 1866 and became a part of the Consolidated workings.
In 1882 an accident occurred which resulted in the loss of 8 lives. A man and a boy fired off 2 charges on the 50 fathom level which breached old flooded workings. The water came up to the 30 fathom level before stopping. The man managed to get out but the boy was drowned along with 2 other boys and 5 men. An excavation of the mine in 2000 found felt hats amongst pieces of broken wood and iron.
Until around the end of the 1960s, water from this mine and a couple of others formed the supply of tap water for the Redruth area.
Gwennap Pit originated as either a mine collapse (reputed to have been formed from subsidence of part of Cathedral Mine) or possibly from an open-cast working. It became famous as it was used in its unimproved form by John Wesley for preaching on 17 occasions from 1776-89. In memory to Wesley, in 1806, local miners further excavated the pit into a neater oval shape and added terraces to create 13 rows of seats, creating the elegant structure that is visible today.
Somewhat at odds with preaching a religion based around modesty and restraint, Wesley greatly exaggerated the size of the pit. His estimate of an audience of 32,000 also seems unlikely as the current pit can accommodate around 1,800 people. Moreover, in the mid-late 1700s, the entire population of Cornwall was only around 150,000 and due to quite high infant mortality at the time, a large percentage of the population were babies and young children. Audience size would also have been limited by transport: most poor people didn't possess a horse and would need to walk from their homes. In fact, the long walk from fishing villages to Anglican parish churches (often on high ground, nearer God) was one of the reasons that Methodism (which could be practised within the village) became so popular.
In most of the UK, thatch was the only roofing material available to the bulk of the population until Victorian times when slate became more widely available. At this point, thatch became regarded as a mark of poverty and therefore socially undesirable. In Cornwall, the transition from thatch to slate began earlier due to the local availability of roofing slate, particularly from Delabole.
During the 20th Century, availability of good quality thatching straw declined after the introduction of the combine harvester and the release of short-stemmed wheat varieties. In 1964, heavy fines were introduced for growing an unregulated variety of wheat and all the traditional, tall-stemmed varieties that were used for thatching became illegal.
The style of the remodelled Gwennap Pit was copied in 1850 at Indian Queens, and a couple of years later at St Newlyn East. A quarter-circle version also exists near St Austell at Whitemoor, first documented in 1871. An old quarry on Tregonning Hill was also used in its unimproved form for Sunday School meetings from the late 1800s which is also likely inspired by Gwennap Pit's fame.
The spike at the very top of the hill ahead is the Basset Monument on Carn Brea.
The 90ft high Celtic cross on the top of Carn Brea was erected as a monument to Francis Basset and is inscribed "The County of Cornwall to the memory of Francis Lord de Dunstanville and Basset A.D. 1836."
Basset gained the title of Baron for defending Plymouth from the combined fleet of the French and Spanish in 1779, and calming a miners' food riot in 1785. Towards the end of his life, he was part of the group who petitioned the House of Lords against slavery in 1828.
To the right of the Basset Monument is Carn Brea castle.
Carn Brea Castle is on the site of a 14th Century chapel dedicated to St Michael. In the 18th Century it was rebuilt as a hunting lodge for the Basset family in the style of a castle. In this period, Carn Brea was a deer park. Once the hill began to be mined, the deer were relocated to a park at Tehidy (which became the country park and golf course).
During the 1950s to the 1970s the building fell into disrepair but was renovated from 1975-1980 and is now in use as a restaurant. There are panoramic views which include St Ives Bay and the coast around Portreath. Consequently, from the sea, the building is a clear landmark and formed an important beacon for shipping: a lease from 1898 stipulates that the tenant must maintain a light in a north-facing window.
Before the Industrial Revolution, gorse was valued as a fuel for bread ovens and kilns as it burns rapidly, very hot and with little ash. It was in such demand that there were quite strict rules about how much gorse could be cut on common land.
In more recent times, due to reliance on fossil fuels, this is now out of balance and gorse has increased in rural areas which have been abandoned agriculturally.
Bracken has been used as a fuel for centuries but is of interest as a modern biofuel due to its very high calorific value. Normal firewood produces around 15-19 gigajoules of heat per tonne of material (depending on moisture content - drier is more efficient hence kiln-dried logs). Elephant grass can produce around 18 GJ/t and bracken can deliver 21 GJ/t. At least one company has piloted creating compressed fuel briquettes from bracken in a similar way to elephant grass.
Robins are one of the birds that you're likely to see in an area such as this close to human habitation.
Robins are able to hover like kingfishers and hummingbirds and use this skill when feeding from bird feeders, which they are unable to cling to.
Navelwort grows on the shady wall beside the path.
Navelwort produces flower spikes with small green bells from June to September. When the flower spike is first forming, it is a rather beautiful structure and is a perfect subject for macro photography.
Where tracks met in a T-junction, this presented a challenge for horses and carts as these didn't have a tight turning circle. The triangular islands often visible on junctions of tracks and small lanes today were formed by the cartwheels cutting the corners of the junction. Eventually these cut corners were formalised as surfaced tracks with a grassy triangular island in the centre.
Pennance mine (originally known as Wheal Amelia) was a small mine which produced copper, and later tin. It was renamed "Pennance Consols" in order to make it sound larger and attract money from investors "upcountry", ignorant of its small size. It closed in 1874. Its unofficial local name was Wheal Bloody Nose which has been attributed to a fight between miners but could also have been a reference to the outcome for unwary investors.
Roughly half-way between the gate and the end of the concrete wall and where the track widens to the quarry entrance is a small gap in the wall on the right leading to some steps which lead down to Figgy Dowdy's well.
The well is associated with a woman known either Figgy Dowdy or Margery Daw (as in the see-saw nursery rhyme). This may have its origins in a Celtic saint or possibly a pre-Christian fertility goddess. In the 19th Century, there was a custom to bring dolls here to be Christened.
The see-saw nursery rhyme is thought to have originated as a sawyers' work song, used to keep rhythm on a two person saw. It is thought that the name "Margery Daw" was simply invented to rhyme with "see-saw", whilst the part about living on a penny a day for slow work was encouragement to keep sawing!
In 1877, four large granite quarries on Carn Marth were recorded on the 1st Edition OS map. Two of these later merged to form the lake at the top of the hill. The other two are overgrown pits at the top of the hill on the opposite side of the track from the lake. The one now converted to create the amphitheatre opened a little later in the 1880s and was worked for around 100 years until the 1980s.
Carn Marth is 235 metres high and like Carn Brea is formed from an outcrop of granite which pushed up through the original rocks to form a hill. From the top, the hills of Bodmin Moor can be seen and a topograph (being restored at the time of writing) near the lake indicates the locations of surrounding landmarks. Carn Marth has therefore been used as a site for a beacon for many centuries, including as part of the Tudor early warning system where a chain of hilltop fire beacons was used to warn of an invasion. The remains of 3 barrows suggest that it has been important since prehistoric times and an urn with a Roman coin suggests this continued into the Dark Ages.
Granite is pretty hard stuff. It ranks at 7 out of 10 on the Mohs hardness scale. It's harder than normal steel but not quite as hard as hardened steel (which is 7-8). Cutting on granite worktops is therefore not a good idea as knife blades become blunt quickly.
It is recorded in the Stannary Roll of 1305-06 that Johannes Margh of Trevarth sent thirty shipments of tin to Truro. The place name is thought to mean "March's farm" which had presumably been in the family since early mediaeval times.
Early tin production in the area was carried out by washing tin ore from aluvial deposits in the Carnon Valley. Later, the lodes of tin were worked directly, mostly via surface pits in the mediaeval period.
There are 2 sparrow species in the UK but only the house sparrow is common in Cornwall.
Sparrows are highly social birds. They roost in colonies and when breeding, the nests are also built in close proximity. They also quite readily form a flock with other species of bird.
The stiles in Cornwall that consist of rectangular bars of granite resembling a cattle grid are known as "coffen" (coffin) stiles. These often occur on footpaths leading to churches such as the Zennor Churchway. The mini cattle grids are fairly effective at containing livestock and were significantly easier for coffin-bearers to navigate than stiles crossing walls. They are more frequently found in West Cornwall but there are a few in East Cornwall such as those on either side of Advent Church.
The first record of Trevince is from 1319 and is quite different - as Trevresky. Other than being a farmstead, and probably dating from early mediaeval times, the origin of the name isn't known. The site is recorded as being a manor on OS maps from the 1880s but no earlier records have so far been found. The country house was rebuilt in the late 19th Century but some parts still remain from the 17th and 18th Centuries.
Wheat was formed by hybridisations between wild grasses which was then spread through domestication. The cultivation of wheat is thought to have begun nearly 12,000 years ago in southeast Turkey.
Remains of wheat from 8000 years ago have been found in Britain which indicate trade with Europe. Until around 6500 BC, it was possible to walk between Britain and the rest of Europe via an area of low lying land known as Doggerland. As sea levels rose after the last Ice Age, the North Sea flooded this, making Britain an island.
Because each of the hybridisations that formed wheat were rare events, and because there were multiple stages of hybridisation involved, domesticated bread wheat is all from a common ancestry and therefore there is very little genetic variety. This narrow gene pool makes the risk of a catastrophic disease quite high. Since the 20th Century, work has been underway to broaden the wheat gene pool to produce disease-resistant strains through a number of techniques including crossing wheat varieties from different parts of the world, hybridising with wild grasses, and more recently through direct genetic manipulation.
The trees that overhang the path include beech.
The fruit of the beech tree is known as "mast" or, less cryptically, "beechnuts" and these are not produced until the tree is 40-60 years old. The small triangular nuts are encased in spiky husks which split and drop from the trees from late August to early October. The kernels of these are edible and are similar to hazelnuts. They were once used as a source of flour, which was ground after the tannins had been leached out by soaking them in water. If you find them too bitter, you might want to try this trick, although toasting them in a hot pan is also a good option.
The word "beech" is thought to have the same origins as "book" as beech (most probably the bark) was used as a writing material in which to carve runes by Germanic societies before the development of paper. This is still apparent in modern German where the word for "book" is buch and "beech tree" is buche.
A glebe was an area of land used to support the parish priest (in addition to a residence in the form of a parsonage or rectory). Occasionally the glebe included an entire farm. It was typically donated by the lord of the manor or cobbled together from several donated pieces of land.
The National Cycle Network is coordinated by the charity Sustrans. It began with one route in Bristol in 1984 and now consists of around 15,000 miles of signposted cycle routes known as National Cycle Routes. These each have a number and are constructed using a combination of roads typically chosen to have light traffic and some traffic-free tracks which are open to cycles.
National Cycle Route 2 runs for 361 miles along the south coast from St Austell to Dover but at the time of writing, several sections including the one between Par and Plymouth (using the Cremyll ferry to cross the Tamar) haven't been completed yet.
National Cycle Route 3 runs 338 miles from Bristol to Land's End. The route is a mixture of lanes, byways and some tracks not open to road traffic including the upper section of the Camel Trail from Wenfordbridge to Dunmere.
National Cycle Route 304 provides a more direct and less hilly alternative to the coastal section of National Cycle Route 3 between Marhamchurch and Hallworthy.
National Cycle Route 327 runs from Trelash near Warbstow via Launceston to near Tavistock. It forms a link between cycle routes 3 (Bristol to Lands End) and 27 (Plymouth and Tavistock) hence 327.
National Cycle Route 32 splits off Route 3 at Dunmere and rejoins it again at Truro. Using the lower half of the Camel Trail and then predominantly lanes, the route runs through Padstow, St Columb Major and Newquay for a total of 51 miles.
Between Bude and Land's End, National Cycle Routes 3 and 32 are collectively known as the Cornish Way, stretching for 123 miles.
Some estimates suggest the UK has up to half of the world's total bluebell population; nowhere else in the world do they grow in such abundance. However, the poor bluebell faces a number of threats including climate change and hybridisation from garden plants. In the past, there has also been large-scale unsustainable removal of bulbs for sale although it is now a criminal offence to remove the bulbs of wild bluebells with a fine up to £5,000 per bulb!
During periods of cold weather, spring flowers, such as bluebells, have already started the process of growth by preparing leaves and flowers in underground bulbs during summer and autumn. They are then able to grow in the cold of winter, or early spring, by using these resources stored in their bulb. Once they have flowered, the leaves die off and the cycle begins again.
Other species (such as cow parsley or dandelions) require warm weather before they are able to germinate and grow. With the warmer springs induced by climate change, bluebells lose their "early start" advantage, and can be out-competed.
Because bluebells spread very slowly, they're considered to be an indicator of ancient woodland sites. In areas where trees are not very old, the fact there are bluebells around can indicate that there has been a wood on a site for a very long time. Even if there are no trees there at all, bluebells tell us that there was woodland there some time in the past. The bluebells along the coast are a relic of the gnarled oak woodland that used to grow here before it was cleared for grazing. There is still a patch of the ancient oak woodland left along the coast at Dizzard.
Some plant nutrients such as phosphorus tend to be more abundant near the surface of the soil where decaying organic matter collects. Bluebell seedlings start life at the surface so these are OK but as bluebell plants mature and send their roots deeper into the soil to avoid winter frosts, they have a phosphorus problem. They have solved this by partnering with a fungus that extends from their root cells, drawing in minerals from the soil in return for some carbohydrates from the plant.
Bluebells are extremely poisonous, containing a number of biologically-active compounds and were used (probably with varying success) in mediaeval medicine. The sap was used as a glue for book-binding as its toxicity repelled insects. It was also used to attach the fletchings onto arrows.
In Elizabethan times, starch made from the bulbs was used to stiffen collars and cuffs in clothing. The ruffs that were highly fashionable at the time would have needed a lot of starch to prevent them flopping. The toxins in bluebell sap might also have had the desirable property of preventing the starch encouraging the formation of mould.
In folklore, the bluebell is a symbol of constancy, presumably based on the fact that they flower in the same place every year. It was said that anyone who wears a bluebell is compelled to tell the truth. This could be the origin of the "…something blue…" that a bride should wear on her wedding day.
According to folklore, it's unlucky to bring bluebells into a house and also unlucky to walk through bluebells as it was thought that the little bells would ring and summon fairies and goblins.
In Old Cornish, both bluebells and marigolds were known as lesengoc which translates to "flower of the cuckoo". In Modern Cornish, the marigold has remained more-or-less the same but the bluebell has been changed to bleujenn an gog ("plant of the cuckoo"). The association between bluebells and cuckoos exists in Welsh ("bells of the cuckoo") and Gaelic ("cuckoo's shoe"), and in some English folk names such as Cuckoo's Boots and Cuckoo Stockings. It is thought that the association is due to the time that bluebells flower coinciding with the time that the call of the cuckoo is first heard.
Bluebells are also known by folk names based on their shape including Lady’s Nightcap and Witches’ Thimbles.
Other common names for the bluebell include "wild hyacinth" and "wood hyacinth" as they are related to the hyacinth family. Their Genus name Hyacinthoides also means "hyacinth-like".
When photographing bluebells, the flowers that look blue to your eye can end up looking purple in photos.
The first thing to check is that your camera isn't on auto white balance as the large amount of blue will cause the camera to shift the white balance towards reds to try to compensate.
Another thing to watch out for is that the camera's light metering will often over-expose the blue slightly to get a reasonable amount of red and green light and the "lost blue" can change the balance of the colours. You can get around this by deliberately under-exposing the photo (and checking there is no clipping if your camera has a histogram display) and then brightening it afterwards with editing software.
Bluebells are very vulnerable to trampling. The reason for this is that when their leaves emerge in the early part of the year, they are powered by the stored sugars in their bulbs. Sunlight is very limited at this time of the year and even more so in the shady places where they grow. In order to survive, they then need to photosynthesise flat-out to store enough starch in the bulb for next year's growth. If a bluebell’s leaves are crushed, it cannot photosynthesise and and doesn't have enough reserves left in its bulb to grow new ones. It's therefore important to stick to footpaths in bluebell woodland and best to take photos with a zoom lens from there as wandering around in the bluebells to take photos will inadvertently kill them.
A rare genetic mutation occurs in bluebells which results in about 1 bluebell in 10,000 being white rather than blue.
Three-cornered leeks - which have white bell-shaped flowers and are very common - are often misidentified as "white bluebells". The easiest way to tell them apart is that 3-cornered leeks smell strongly of onion. Their flower stems are also triangular (hence the name).
The jay is a member of the crow family recognisable by the flash of electric blue on their otherwise brown body. Their natural habitat is woodland, particularly oak.
Like squirrels, jays collect and bury acorns as a winter food store. Once jays were the main means by which oaks colonised new locations as a population of 65 jays can bury (but not always find again afterwards) half a million acorns in a month. Jays prefer to bury their acorns in open ground which is an ideal spot for a new oak tree.
Squirrels are rodents, closely related to chipmunks and slightly more distantly to dormice. The word "squirrel" originates from an ancient Greek word meaning "shadow-tailed", referring to the bushy tail of a squirrel. A family group of squirrels is known as a "drey" (also the word for a squirrel nest). A group of unrelated squirrels is known as a "scurry", though squirrels tend not to hang out in groups.
Grey squirrels were introduced to the UK from the USA in the late 19th Century and within decades they had replaced the native red squirrel in most parts of the country.
Compared to red squirrels, grey squirrels are able to eat a wider diet (including acorns), are larger so can survive colder winters, and are better able to survive in the fragmented habitats created by urbanisation. They are also thought to be carriers of a squirrel pox virus which they usually recover from but has been fatal to red squirrels, although red squirrels are now also developing some immunity.
To date, culling of grey squirrels has not reversed their domination of woodland habitat and alternative approaches such as planting food with contraceptives are being explored as a means to control the population. The theory is that infertile squirrels can compete for food against fertile squirrels, whereas culling can create a glut of food resulting in a higher number of squirrels surviving which replace those that were exterminated. Natural predators such as goshawks or pine martens also remove more grey squirrels than red squirrels. This is because red squirrels are more savvy having co-evolved with the predators so for example they recognise the scent of pine martens and actively avoid areas with this.
Squirrels assess each of their acorns before burying them. If an acorn is too light (which suggests it might have a hole), the squirrel will eat it immediately rather than risking it going mouldy.
In order to later find the nuts that they've buried, squirrels need to be organised. Some species of squirrel have been studied and found to structure their hoards by type of nut e.g. burying all their acorns under one tree and all their conkers under another. This is equivalent to us organising all the veg onto one shelf of the fridge to make it easier to remember where to look for them.
As well as forgetting where they buried some of them, squirrels may also lose a quarter of their buried food to birds, other rodents and fellow squirrels. Squirrels therefore use dummy tactics to confuse thieves by sometimes just pretending to bury a nut.
Squirrels eyes are positioned on the sides of their head which allows them to spot predators approaching from behind them. When a squirrel spots a predator, its runs away in a zigzag pattern. This confuses many of their predators but unfortunately it doesn't work well for cars.
Young squirrels suffer a high mortality rate in the wild and less than one in three make it to adulthood. The ones that do, live on average for about 6 years, although a lucky one can live to about 12 years old. In captivity, where there are neither predators, cars nor cold winters to contend with, they can reach 20 years old.
By using their tail as a parachute, squirrels are able to survive falls from high trees. This allows them to attempt risky jumps between treetops that don't always work out. They are one of the few mammals that can (but not always) survive an impact at their terminal velocity i.e. if a squirrel jumped out of an aeroplane, it may well survive.
In urban areas in cold countries such as Canada, a black form of the grey squirrel is more common which is able to withstand the cold better both by retaining more heat and also having a slower metabolism. In wilderness areas where predators are more common, the black squirrels don't seem to do so well, perhaps because they are less camouflaged against trees than the grey ones.
Britain lost most of its wild yew trees due to longbow production in the Middle Ages. Once the national supplies had been exhausted, Britain began importing yew wood from just about any European country that had any, rendering yew trees extinct or rare in many parts of Europe. Ironically, Britain now has possibly the world's greatest collection of yews and the majority of these are in churchyards where it was deemed inappropriate to fell them for longbows.
The yew trees in British churchyards are some of the oldest yew trees found anywhere in the world and yews can live for thousands of years: the Forestry Commission described them as "the toughest, most indestructible and longest lived tree we have". It is therefore possible that some of the ancient yews are older than the adjacent church buildings as Christianity took over many sacred places from the previous religious traditions: in AD 601, Pope Gregory advised his followers not to destroy places of Pagan worship but to convert them into Christian Churches.
Primroses prefer moist soils so they tend to grow either in semi-shady places which don't get dried out too much by the sun such as woodland clearings and the base of hedgerows, or in wet open ground such as near streams.
Primrose seeds are quite large and therefore, due to their weight, don't travel far from the plant. This causes a clump of primroses to spread out very slowly over time and means it takes a long time for primroses to colonise new areas. This makes large carpets of primroses a very good indicator of ancient woodland where they would have had many hundreds of years to spread out.
Although primroses flower most intensely in March and April, some primroses can begin flowering in late December. The name "primrose" from the Latin for "first" (as in "primary"), alluding to their early flowering.
Primrose flowers provide an important nectar source for pollinators that hibernate over winter and emerge quite early like brimstone and small tortoiseshell butterflies - these are some of the first butterflies to be seen in spring. Primrose is also the food plant for the caterpillars of the rare Duke of Burgundy butterfly.
Most primroses tend to be pale yellow but in residential areas, extensive hybridisation occurs with pink and purple garden primulas to create all kinds of weird and wonderful mutants, with some even shaped like cowslips. However, there is a pale pink variety of primrose (known as rhubarb and custard) that is thought to be a naturally-occurring variant of the pale yellow (rhubarb-free) version as it has been found miles away from any domestic plants.
During Victorian times, the building of railways allowed primrose flowers picked in the Westcountry to be on sale in London the next day. Picking was done on a large scale but eventually became unfashionable, being seen as environmentally destructive. However all the evidence gathered suggests as long as the flowers were picked and the plants were not dug up, the practice was sustainable.
Handling primroses is best avoided as the hairs on the leaves and stems can cause contact dermatitis which is quite severe in some people. It is thought that some people may develop a tolerance with repeated exposure but nevertheless a study in a medical journal found that over a quarter of Primula growers experienced skin reactions.
Daffodils were originally called asphodels (lumped together with the other plants that are now called asphodels). A pronunciation variation was "affodell". No-one is quite sure how the initial "d" was added - perhaps "the asphodel" by someone with a cold ("d affodel").
Daffodils contain chemical compounds which are toxic to dogs, cats and humans and ingestion of any part of a daffodil is likely to cause a stomach upset e.g. when unsupervised children have eaten leaves. The bulbs have both higher concentrations and a broader range of toxins than the rest of the plant and can be mistaken for onions (although don't smell of onion).
Growing daffodils has been an important industry in Cornwall and the Isles of Scilly for over a century. When the Great Western Railway reached Cornwall, this provided a means to export perishable goods such as fresh flowers and fish which previously would not have survived the long journey by boat or horse and cart. Out of respect for the dead, coffins were transported by the railway for free. It was therefore not unheard of for coffins filled with daffodils to arrive in London from Cornwall.
For such a widespread tree, the oak is surprisingly inefficient at reproducing naturally. It can take 50 years before the tree has its first crop of acorns and even then, the overwhelming majority of the acorns that it drops are eaten by animals or simply rot on the ground. Squirrels play an important part by burying acorns and occasionally forgetting a few which have a much better chance of growing than on the surface.
The older an oak tree becomes, the more acorns it produces. A 70-80 year old tree can produce thousands. Acorns are high in carbohydrates and as well as being a staple food for squirrels, they are also a really important food for deer and make up a quarter of their diet in the autumn.
Tannins are natural preservatives. The reason why red wine keeps much longer than white is that the grape skins that give the red colour also contain tannins. Oak leaves, wood and acorns all contain a high level of tannins. When wine is aged in oak, the wooden barrels release more preservative tannins into their contents.
The (leather) "tanning" process got its name as it involved extracting the tannins from acorns or oak bark and soaking these into animal hides over 1-2 years to preserve them. From the brown oak juice containing the tannins, the colour "tan" was named and from this the expression "sun tan" arose.
The high levels of tannins in oak make large amounts of oak leaves or acorns poisonous to cattle, horses, sheep, and even goats, but not to pigs as they were domesticated from wild boar which were adapted to foraging in the oak forests, like deer. Acorns were also eaten by people in times of famine. The acorns were soaked in water first to leech out the bitter tannins and could then be made into flour.
Wood from the oak has a lower density than water (so it floats) but has a great strength and hardness, and is very resistant to insect and fungal attack because of its high tannin content. This made it perfect for shipbuilding.
Oak was often associated with the gods of thunder as it was often split by lightning, probably because an oak is often the tallest tree in the area. Oak was also the sacred wood burnt by the druids for their mid-summer sacrifice.
Ivy is a creeping vine which is well-known for being able to climb up almost anything. With good support, an ivy plant can climb as high as 90ft. A plant can live over 400 years and on mature plants, stems can reach a diameter of over 10cm.
Ivy has two types of roots. The "normal" roots extend into the soil and collect nutrients. At intervals along the climbing stems there are also aerial roots which attach the plant to a surface. As they come into contact with a surface, the roots change shape to anchor the plant. They then produce hairs that wedge into any crevices. The roots also exude a chemical compound which acts as a glue.
There are two types of ivy leaf. Those on creeping stems are the classic ivy leaf shape with 3-5 triangular lobes - they grow towards shade to find a tree to climb up. However, more mature ivy plants grow aerial shoots with a completely different (teardrop) leaf shape. These are the shoots that bear the flowers and fruits and are typically located in a sunny spot such as on an upright ivy bush or top of a rock face. The reason for the different shapes is that the larger, multi-lobed leaves are able to catch more light in shady areas whereas the smaller, stouter leaves are more resistant to drying out.
Since the multi-lobed leaves are found in shade, whist the teardrop leaves are found in sun, this allows the leaves of ivy plants growing up trees to be used as a compass. Unless something is in the way then the sunniest side of a tree is to the south and the shadiest is to the north.
Ivy is rarely a threat to healthy trees. Ivy is not a parasite. Since it has its own root system, it absorbs its own nutrients. It simply uses a tree for support. The main risk to trees is during strong winds when the surface of the ivy can act as a sail which, together with the extra weight from the ivy, can cause a tree to fall.
The effect of ivy on buildings is controversial as it depends a lot on the properties of the surface it adheres to. The rootlets wedge into any cracks in the surface and so on surfaces that are fragile, ivy will cause damage. A study for English Heritage found that on hard, firm surfaces, ivy did little damage. The blanket of leaves was also found to have beneficial insulating effects and protect the masonry from water, salt and pollution.
Ivy is unusual in that it flowers particularly late in the year - from September to November - and therefore provides vital nectar for insects such as bees and moths. Ivy berries are an important winter food source for birds and will remain on the plant all the way through the winter until spring. The berries also have a high fat content so provide a dense source of energy at a time when animals need lots to keep warm.
Extracts from ivy were used in herbal remedies and still form the basis of some modern-day cough medicines. It is said to have both antibacterial and antiviral properties. A study for English Heritage also found that roadside ivy absorbed particulates from the atmosphere which may lead to its use in improving air quality.
Holly is able to adapt to a range of conditions but prefers moist ground. It is very tolerant of shade and can grow as a thicket of bushes underneath larger trees. However, given the right conditions, holly trees can grow up to 80ft tall!
Holly was known in Cornwall as the holm (bush) and is the origin of the Holmbush area of St Austell and Holmbush Mine in Kelly Bray.
The berries of holly contain a chemical compound very similar to caffeine. Only in very small doses is this a stimulant; in larger doses it is toxic. It is for this reason that you see holly berries on bushes rather than being inside the nearest bird. The birds have learned to wait until after the frosts have reduced the toxicity of the berries before eating them.
Anyone who has sat on a holly leaf will know how prickly they can be but the leaves particularly on larger holly bushes often vary considerably with less spiky leaves nearer the top.
Holly is able to vary its leaf shape in response to its environment through a chemical process known as DNA methylation which can be used to switch genes on and off. If its leaves are eaten by grazing animals or trampled by walkers, the holly will crank up the methylation level to produce really spiky leaves on these stems. Conversely on the stems where the leaves are able to grow old in peace, the holly will produce versions that are flatter and therefore more efficient at catching the light. An individual leaf can last up to five years.
Holly has separate male and female plants, so not all holly bushes produce berries - only female plants. In less biologically-enlightened Pagan times, holly was thought to be a male plant (the spikes symbolising aggression) whereas ivy was regarded as a female plant (symbolising attachment). The Christmas Carol "The Holly and the Ivy" is thought originally to derive from Pagan fertility myths onto which Christian symbolism has subsequently been added.
The association of holly with winter celebrations predates Christianity: druids were known to use holly wreaths which, it is likely with some discomfort, they wore on their heads.
From Roman times, holly trees were planted near houses as it was believed to offer protection from witchcraft and lightning strikes. There is some scientific basis for the latter at least: the spines on the leaves can act as lightning conductors. The sharp points allow electrical charge to concentrate, increasing its potential to form a spark.
Mosses are close relatives of the first plants to colonise the land 500 million years ago. They descended originally from freshwater algae but evolved an outer coating that protected them from the temperature changes and UV radiation that made life on the land more of a challenge than in the water. There are now estimated to be over 10,000 species of moss.
Mosses reproduce with tiny spores rather than seeds. Many mosses use wind to carry their spores and produce tiny stalks with the spore-releasing equipment on the top in order to catch the wind - these can be seen as thread-like structures standing up from the moss. These spore-releasing devices often have a ring of teeth around the edge (visible with a magnifying glass) to control the release of the spores, allowing them to be released gradually over a period of time to catch gusts of wind of different speeds and in different directions.
Sphagnum (peat) mosses use compressed air to launch their spores. To get an idea of the acceleration that the spores are launched with, an astronaut in a rocket launch experiences an acceleration g-force of about 3 g and the maximum in a fighter jet is about 9 g. Sphagnum moss spores are accelerated at 36,000 g!
Mosses don't have roots but instead have little rootlets known as rhizoids. Since there is no need to root into soil, mosses can grow on stones, tree trunks, buildings etc. This together with their wind-carried spores makes them excellent colonisers of barren land. The buildup of organic material from dead moss then provides an environment that other small plants can start to colonise.
Mosses' lack of deep roots mean they need to store their own supply of water during dry periods which is why they are found in shady places that are not dried-out by the sun. This also applies to moss on trees - it rarely grows on the south-facing part of the trunk which can be used as a crude form of compass when navigating.
Some mosses are able to absorb 20-30 times their own weight in liquid. Moss was used in several ancient cultures as nappies: babies were carried in a moss-lined bag to prevent leaks. Moss has also traditionally been used to line hanging baskets which are very prone to drying-out. Areas of moss help to protect soil from erosion by runoff and rivers from sediment and flooding by capturing rainfall and giving it chance to soak slowly into the soil.
The blackbird is a species of thrush. The name "blackbird" is mediaeval, first recorded in 1486. Since most of the crow family is also black, plus many seabirds, the choice of this particular species for the name is thought to be due to its size. Up to the 18th Century, larger birds such as crows were referred to as "fowl" and the term "bird" was only used for smaller species.
The Old English name for the blackbird was osle and up to the 17th Century this survived as in alternative names for the blackbird ranging from ouzel to woosel. One of these is used in A Midsummer Night's Dream by Shakespeare: "The Woosell cocke, so blacke of hew, With Orenge-tawny bill".
Only male blackbirds are actually black. The females are brown. The difference in appearance between males and females is known as sexual dimorphism and is an evolutionary strategy by the males to get noticed more by females at the cost of decreased chances of survival.
Blackbirds can be found in deciduous woodland, particularly where there is dense undergrowth. In the man-made landscape, hedges provide plenty of dense undergrowth and have consequently become a really important habitat for blackbirds. Moreover, many gardens have such a high density of hedges and bushes that they are able to support ten times the blackbird population versus an equivalent area of their natural woodland habitat.
Blackbirds are one of the most common birds in the UK with a population of somewhere between 10 and 15 million. However, blackbirds were in steady decline from the 1970s through to the mid-1990s. The population has only relatively recently recovered.
Blackbirds begin singing from around the end of January but it is normally the overkeen young males initially - the older, wiser males wait until March, pacing themselves for the singing period which continues into the early summer. Blackbirds have been shown to sing more during and after rain but exactly why is not yet known.
Baby blackbirds usually leave the nest before they can actually fly then hop and scramble through the bushes. Their parents watch over them so don't attempt to rescue them.
Blackbirds in the UK are resident all year round but the blackbirds that live further north (e.g. in Norway) migrate south for the winter. To help with migration and also to avoid being eaten by predators, blackbirds can sleep half their brain at a time. This allows them to get some rest whilst still maintaining enough alertness to fly or spot predators.
The reference in the nursery rhyme "sing a song a sixpence" to "four and twenty blackbirds baked in a pie" is thought to be to the 16th Century amusement (though not for the blackbirds) of producing a large pie which included an empty chamber. After the pie had been baked and was ready to be served, a trapdoor would be cut in the empty chamber and live birds were placed inside which would fly out when the pie was cut open. Live frogs were sometimes used as an alternative.
In the Christmas carol "The Twelve Days of Christmas", the line "four colly birds" is thought to be from 18th Century slang meaning "black as coal" and was a popular nickname for the blackbird. Whilst many people today sing and write "four calling birds", this is thought to be a modern misunderstanding of what was originally written.
The magpie is a member of the crow family and like other crows is omnivorous, feeding on pretty much anything it can find although it prefers high energy foods. Magpies spend most of their life in a 6 mile radius of where they were born and live in loose social groups. They will form gangs and use complex social strategies for hunting and tackling predators. Names for a group of magpies include a "tiding", "charm" and "chatter" (the latter reflecting their social communication).
The magpie is believed to be one of the most intelligent of all animals. The area of its brain used for higher cognitive function is approximately the same in its relative size as in chimpanzees and humans. Magpies can count, imitate human voices, recognise themselves in a mirror and have been observed regularly using tools to keep their cages clean. It has even been suggested that magpies may feel complex emotions, including grief.
Since members of the crow family will eat the eggs and chicks of other birds, there has been concern that magpies might have an effect on the songbird population. However, an extensive study by the British Trust for Ornithology using 35 years of data found that the presence of magpies appeared to have no measurable effect on songbird numbers. It is thought that availability of food and suitable nesting sites are probably the main factors limiting songbird populations. Hedgerows are a particularly important habitat.
The folklore about magpies collecting shiny objects has been shown to be an incorrect myth. A scientific study found that magpies are actually scared of shiny objects and actively avoid them.
Even up to the 16th Century, magpies were simply known as "pies" from the Old French word pie (related to the Latin word for magpie - pica). The term "pied" meaning "black-and-white" (as in pied wagtail) is from the magpie's colouration. It's also possible that the pastry thing we now know as a pie (which can be traced back to Mediaeval Latin) was named after the magpie. It has been speculated that the assortment of ingredients in the pastry crust was likened to objects collected in a magpie nest. The "mag" in the modern name is a (somewhat sexist) mediaeval slang word for someone who chatters, based on the name Margaret.
Busveal was recorded in 1356 as Bosveal. It's from the Cornish word for "dwelling" and the rest is thought to be the name of the occupant, possibly "Mael" due to the Celtic language quirk of mutating the initial consonant of a word depending on what's placed before it.
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