We’ve been in lockdown in the UK for nearly a week. I was glad when it was announced as it was the first decisive step our government has taken during the coronavirus crisis. We’re supposed to stay in our homes except for essential outings (work, food or medical) and one “exercise” walk each day. Hopefully the lockdown will reduce the spread of the coronavirus by limiting social interaction but it does require people to follow the new rules.
It has been a beautiful week for weather, mild and spring-like with bright sunshine and blue skies, the sort of weather where the air is filled with birdsong and you can almost hear the buds swelling. When I have been out on my exercise walks, I have been taking photographs when I see something that catches my eye. I thought I would post these here, partly for interest as spring arrives in the west country and partly to show how much wildlife there is about us.
The picture at the head of this post is of some Anemone blanda growing among leaf litter in the Leechwell Garden. These blue flowers are native to southeastern Europe but seem to do well here.
Dull, wet and mild has been the prevailing story for the winter weather so far this year in the south west of the UK. Much needed winter sunshine has been in short supply and we’ve woken up to frost on only a handful of days. And then the storms: in February alone, two consecutive weekends of severe weather brought heavy rain and gale force winds but very mild temperatures. Local roads were blocked by water but flooding in other parts of the UK was much worse.
Even before the storms, walking in the rain-saturated countryside was particularly difficult but we managed to get out, although this sometimes meant paddling through mud and water.
One of these walks was on a sunny February 1st when we took the opportunity to walk to Westcombe Beach near Kingston in south Devon. This is an isolated sandy cove bisected by a sprightly stream and enclosed by some impressively jagged shiny grey rock formations. The beach was largely clear of plastic waste, a rare find nowadays, but on one side I came across several unusual pale blue and pink inflated objects. Although these might look as though they are made from plastic, they are in fact living creatures, Portuguese Men o’ War, driven on to the beach by south westerly winds. They normally float on the surface of the sea, trailing dark blue tentacles with the capacity to deliver a very nasty sting, their pink sail catching the wind.
During our walk to and from Westcombe Beach we came across several flowers usually associated with the spring including primroses, violets and celandine. As we were near the coast, the dark green fleshy leaves of Alexanders also flourished along the path sides but I was surprised to see one plant already in flower.
Then as we walked back along the cliff tops in the low, late afternoon sunshine, we encountered a large caterpillar crossing the coast path. It was very furry with orange-brown hairs along the top and darker grey-brown hairs below. This is a larva of the fox moth and on sunny winter days they come out of hibernation to bask.
Just under a week later, on February 6th, a day of sunny intervals, we walked to Mansands near Brixham. Mansands is another isolated cove but with a stony beach and backed by a substantial body of water that attracts both waterfowl and bird watchers. The land rises steeply either side of the beach with cliffs and there had been some falls of the soft rock on the eastern side over the winter which may have affected the solitary bees that nest there. [The picture at the head of this post shows the eastern side of Mansands beach and cliffs.]
Our biggest surprise of the day was finding a pair of toads (male and female) on the path along Mansands Lane as it descended towards the beach. Hazel spotted the pair and had to take quick evasive action to avoid squashing them. They were most likely on their way to the water below the path to spawn. The males are opportunists and hitch a lift on the back of the larger females when they pass. Once the female arrives at the water, more males will jump on her, competing for her attention. Eventually, she will choose one male to fertilise her eggs as she deposits strings of them in the water. We managed to persuade the pair to move to the path edge where they were more likely to avoid the danger of passing human feet.
There were more surprises in store as we walked up the very steep Southdown Cliff away from Mansands where we saw several flowers often associated with spring.
I hadn’t expected to see these flowers so early in the year but perhaps the generally warm weather has encouraged them. There have also been reports of solitary bees emerging earlier than expected and I have seen queens of the bumblebee Bombus pratorum in two places in Devon, on January 15th and 20th so both very early.
A simple explanation for these findings is that our climate is changing. Warmer, wetter winters with unstable weather are becoming more likely as a result of global temperature increases with corresponding effects on the flora and fauna. But one person’s observations in one year don’t go beyond the anecdotal and we need much more comprehensive data to draw conclusions.
For this, I went to Nature’s Calendar, a citizen science project that records first flowerings, first sightings etc for many species across the UK. When I looked at their report for 2019, I was surprised to see that blackthorn, to take one example, flowered 27 days earlier in the UK than it did in 2001. In fact in 2019 all but one of Nature’s Calendar spring events were early, some considerably so. Lorienne Whittle of Nature’s Calendar attributes these changes to the warmer winters we are now experiencing and the concern is that the long-established patterns of nature are being disturbed with potentially serious consequences. For example, if frogs and toads spawn early, late frosts could kill their tadpoles. Also, should insects emerge too soon they may not survive unless plentiful flowers are available for food. We are entering uncertain times.
It was the video that clinched it! I’d read the reports of starlings gathering in their thousands at sunset over Chesil Beach but when I saw the video of their murmuration and the liquid patterns they carve in the sky, I knew I had to go to see for myself. So, on the first clear, dry day we set off for West Bexington on the West Dorset coast near where the starlings had been spotted.
West Bexington is a tiny village lying between low coastal hills and Chesil Beach and when we arrived that mid December afternoon, it all felt very quiet. The sun hung low in the pale western sky, its bright yellow disc casting a shimmering, silvery mirror across the water and a warm light across coastal fields. We parked in the beach car park and set off across the shingle, the pea-sized pebbles making for hard going as usual. The sea was our constant companion, calm with just a light swell and waves that barely left a thin white line along the vast sweep of beach. I had thought there might be more people about to watch the birds but, apart from a few fishermen, their faces turned fixedly towards the sea, we were alone on the shingle. The skeletal remnants of beach plants that flourish here in warmer months added to the sense of isolation.
For a short time, we stood by the extensive beds of pale reeds that line the back of the beach. The feathery stems fidgeted and rustled as a light breeze passed and we heard the occasional squawk from birds deep in the reeds but invisible to us. A skein of geese passed eastwards to disappear behind the coastal hills honking loudly as they went and the pale moon appeared above the ridge.
Then we noticed another figure labouring across the shingle, swathed in warm shawls and a woolly hat. She approached us and asked if we had come to watch the starling murmuration. We had of course. She told us that she had seen them perform near here on the two previous afternoons before roosting and this was about the right time. We stood, the three of us now, looking, watching, scanning the sky for perhaps ten minutes, but nothing happened. We discussed the vagaries of watching wildlife and we got colder and colder. The sun, a fiery orange ball by now, approached the horizon and spread its warm glow across the shingle. The moon, nearly full and not to be outdone, rose steadily above the hills.
We were on the point of giving up when the first group of starlings appeared in the sky above the coastal hills to the west. At first, they were just a mobile black smudge but soon they began to move about in the pale sky sculpting smooth shapes and occasionally disappearing from view over the dark land. Quite suddenly they were joined by more …… and more……. and more birds, as though some signal had been sent and soon a huge cloud of thousands of birds was moving backwards and forwards forming massive, mobile, liquid shapes that twisted, thickened, thinned and sometimes split apart before merging again. The mass of birds, the murmuration, seemed to have a life of its own, as though it was some kind of sky-bound superorganism squirming about. This was one of the most impressive natural events I have ever experienced, forever engrained in my memory. It lifted our spirits eliciting spontaneous exclamations of surprise and delight.
By now the sun was setting and the light was fading. Suddenly, and without warning, the birds dropped down to roost across the coastal scrub to the west below Othona like a sheet floating to the ground; it was as if another signal had been sent that only the birds understood. With so many starlings, there must have been an impressive noise from their wings when flying and from their chattering when on the ground. I lost all sense of time while the birds were performing their murmuration but when I checked my watch the whole event had lasted only ten minutes and coincided roughly with the setting of the sun.
We marvel at their behaviour but starlings don’t create these pulsating patterns in the sky for our benefit. So, why do they do it? Security is thought to be one reason. Predator birds are always on the lookout for food and as the light fades, individual starlings become more vulnerable. They cannot see the predators well in the fading light but flying as part of large swirling mass of birds provides safety in numbers. Predators find it difficult to focus on single starlings in a moving murmuration so the chance of attack for individual birds will be lower. Starlings are also gregarious and are thought to gather in large numbers as a prelude to roosting close together both to keep warm overnight and to exchange information about good feeding areas. It is tempting after having watched a murmuration to suggest that the birds are also expressing some kind of joy of life.
And yet, starlings are not universally loved. Some people view them as noisy, thuggish and dirty creatures: bird-feeder bullies that soil urban spaces where they roost and have a negative effect on arable farming. Should you take the time to look at a starling, though, you will see a beautiful bird with glossy black plumage enhanced by flashes of iridescent purple or green. Their dark plumage is decorated with startling white spangles in the winter so that, as the poet Mary Oliver says, they have “stars in their black feathers”.
But whether you love them or hate them, starlings in the UK are in trouble. Since the mid-1970s, there has been a 66% drop in their numbers, the starling has been red-listed and is of high conservation concern. The reasons for this decline are poorly understood but are thought to be linked to changes in farming practice. The use of pesticides and synthetic fertilisers and the loss of flower-rich hay meadows have severely reduced numbers of invertebrates such as earthworms and leather jackets that starlings depend on for food. Starlings are dying of starvation and other farmland birds such as tree sparrows, yellowhammers and turtle doves have also been badly affected. Agriculture needs to adjust to make space for wildlife in order to halt this downward spiral before we lose these birds altogether and murmurations become no more than memories.
Midwinter fire ceremonies were once very popular in the UK, especially in rural communities. People gathered around the hearth in a noisy, joyous celebration, with the fire bringing light into the darkness of winter. These ceremonies probably have a pagan origin and one which used to be widespread in the UK was Burning the Yule Log. Less well known but quite common in Devon and neighbouring parts of Dorset and Somerset in the west of the UK was Burning the Ashen Faggot. Although it has now largely disappeared as a household custom, it is still celebrated in a handful of local pubs to the accompaniment of hearty singing and copious drinking.
The ashen faggot was a large bundle of ash sticks or an ash log surrounded by smaller sticks, all bound together by thin bands of willow or hazel (withies). The ashen faggot was cut and constructed on Christmas Eve and placed on a fire kindled with remnants of last year’s faggot. Ash burns well, even when green and as the fire caught and each of the withies broke, tradition demanded that a new jug of cider be brought out to quench the thirst of the assembled company.
The scene around the hearth as the Faggot burned is vividly brought to life in this extract from Festivities and Superstitions of Devonshire in Bentley’s Miscellany 1847:
“On Christmas Eve it is the custom in all the farm houses of this neighbourhood to “burn the ashen faggot”. All the labourers and servants are invited, and a huge fire is heaped up on the wide hearth. We all sat round the hearth in a circle; the firelight deepening the shadows on the hard-featured mahogany countenances around, and setting off the peculiarities of each form. The ashen faggot which lay on the hearth consists of a long immense log of ash, surrounded with smaller branches bound to it with many withies, forming one large bundle; it filled the whole hearth and as it burned the roaring in the large chimney was tremendous. As the fire slowly catches and consumes the withies, the sticks fly off and kindle into a sudden blaze and as each one after the other gives way, all present stand up and shout with might and main; the “loving cup” of cider is handed round and each drinks his fill. They then resume their seats, sing songs, crack jokes until the bursting of another band and the kindling of a fresh blaze demands renewed shouts and another pull at the cider flagon. The merriment is allowed to go on till nearly midnight, before which hour the worthy giver of the feast likes to have her house clear, that the “Holy Day” may begin in peace. This custom is kept up religiously in all the farmhouses around, and is one of the principal festivals of the year.”
Burning the Ashen Faggot was a very popular west country custom and Amery, writing in the Transactions of the Devonshire Association (1879), reported that in the Ashburton postal district alone 32 farms and cottages burnt the Ashen Faggot on Christmas Eve 1878. There were various superstitions and beliefs associated with the event and an old man present at one of the 1878 ceremonies told how the custom “commemorated the first dressing of our Saviour in swaddling clothes, because Joseph cut a faggot of ash, which is well known to burn green and lighted a fire by which the child was first dressed”. The custom was also widespread in 19th and early 20th century Somerset where it was often combined with apple tree wassailing and held on old Christmas Eve (January 5th ). There is one 19th century record of burning the Ashen Faggot in East Devon for Christmas Eve 1839 at Bindon Farm about 4 miles from the Devon/Dorset Border.
In the 19th century, the Ashen Faggot was a household custom bringing working people together at Christmas. Servants and farm labourers and their families were all invited to the farmhouse with its huge hearth and the celebration was provided by the farmer and his wife in thanks for the year’s work. For one evening at least, people put aside divisions and squabbles. The custom began to die out as work patterns changed, as the railways enabled people to move about and as artificial light banished winter darkness.
It seems likely that the custom would have disappeared altogether had it not been taken on by local pubs where it still survives despite recent closures and more stringent insurance requirements. One pub where it flourishes is the 800-year-old Harbour Inn at Axmouth in East Devon and I spoke to one of the villagers, Nigel Daniel, who helps organise the annual ceremony. He told me that on Christmas Eve morning a group of villagers cut the ash and make the faggot which measures about six feet in length and five feet in circumference, filling the expanse of the old inglenook fireplace. Seven bindings each made from hazel are used to secure the faggot which is traditionally taken to the Harbour Inn at lunchtime where a few early Christmas drinks are enjoyed.
The ceremony itself starts late Christmas Eve with the reading of the following lines taken from Christmas by RJ Thorn 1795:
Thy welcome eve, loved Christmas now arrived,
The parish bells, their tuneful peals resound,
And mirth and gladness every breast pervade,
The ponderous Ashen Faggot, from the yard,
The jolly farmer to his crowded hall conveys with speed;
where, on the rising flames, it blazes soon.
Seven bandages it bears,
and as they each disjoin, a mighty jug of sparkling cider’s brought
with brandy mixed to elevate the guests!
The Ashen Faggot is placed upon the open hearth where it soon lights with its distinctive orange and purple flames. As each binding “disjoins” revellers are urged to recharge their glasses accompanied with seasonal toasts. Local singers Ian Hunt and Phil Gamble perform three Seasonal songs: The King, Christmas Song (from the Copper family) and Stormy Winds. Communal carol singing follows continuing well into the night.
The ceremony at the Harbour Inn was revived more than 70 years ago by the landlord Ludovic Grant who used to present a roasted boar’s head as part of the celebrations. The BBC showed interest in the ceremony in the 1950s, broadcasting it on radio and television, but when Ludovic Grant retired in the late 1950s it sadly lapsed. Fortunately, Axmouth thatcher, David Trezise and local gardener, Ned Spiller got together in the early 1970s to restart the ceremony and, led for many years by David Trezise, and with the enthusiastic support of subsequent landlords the event has flourished at the Harbour Inn offering a truly traditional start to a modern Christmas.
The ceremony will be held again this Christmas Eve at the Harbour Inn, Axmouth, but you can also step back in time and participate in this ancient west country custom at the Luttrell Arms in Dunster on December 24th and at the Squirrel Inn at Laymore near Chard and the Digby Tap in Sherborne on January 6th, but please check the timing.
I should like to thank Nigel Daniel for generous help in preparing this article and for providing photographs, also Kristy of the Harbour Inn and Tiffany Hyde for generously providing photos.
A large stand of flowering ivy in the early autumn sunshine is an impressive sight. The many pale green globe flower heads give off their distinctive sickly-sweet smell and insects throng to the flowers to take advantage of the sudden abundance of pollen and nectar. Movement is constant and the entire bush buzzes audibly. Among the insects gorging themselves, there may be red admiral butterflies, plump stripy bumblebees, also good numbers of honeybees and wasps. Sometimes, especially near the sea in the south of the UK, these are outnumbered by beautiful honeybee-sized insects with a distinctive yellow and black banded abdomen and russet coloured thorax. These are ivy bees, the last of our solitary bees to emerge and it’s a delight to watch them each year in September and October.
Ivy bees are relative newcomers to the UK having arrived from mainland Europe eighteen years ago. Since then, they have prospered, spreading across the entire southern half of England and northwards as far as Cumbria As their name suggests, the species prefers pollen and nectar collected from flowering ivy and part of their success must reflect the large amounts of this climber that grow around the UK.
Each year I look out for the ivy bees; for me they signify the changing season, the movement of the year. September 2019 began very mild and dry where I live but, by the fourth week, temperatures dipped and intermittent wet and sometimes very wet weather set in and stayed with us during October and into November. In spite of the weather, I saw ivy bees in several places and here are some highlights of my 2019 observations:
A grassy bank in Sussex
In late September we spent a few days holiday in Sussex, a county in the south east of the UK. We had delivered our daughter to the University of Sussex to begin her degree and were keen to do some country walking. The weather was less than cooperative but on the 25th, our last day, we decided to walk up to the massive iron age hill fort at Cissbury Ring, high on the South Downs. We parked in the village of Findon not far from the 15th century pub, the Gun Inn, and as we passed the traditional butcher’s shop the butcher himself was standing outside wearing his blue and white striped apron.
We left the car and walked up through the village past some private houses where my attention was taken by movement in a grassy bank alongside one of the driveways. I was delighted to realise that this was a large colony of ivy bees. I hope the owner of the house is equally delighted, and I hope they know these are not wasps. Many male ivy bees were dancing about just above the surface of the grassy bank waiting for females to emerge. They occasionally coalesced into a mating cluster when a newly emerged female appeared and after a short time the cluster dissolved and the female and her chosen suitor were left alone. The incessant movement of the colony even on a dull day was very impressive. Here are two short videos which capture this movement.
We left the ivy bees and continued uphill to reach Cissbury Ring. Today this was an elemental place: clouds scudded about driven by the strong blustery wind that was now also peppering us with raindrops and, when the clouds parted, the sun broke through leaving transient pools of light on the surrounding countryside. We kept to the eastern rampart to afford protection from the wind and from the highest point we saw the sea to the south and a second hill fort, Chanctonbury Ring to the north across rolling tea-coloured fields. A few hardy bees were braving the conditions to take advantage of the scattering of wild flowers across the chalk hillside.
On our way back down the hill we passed banks of ivy in flower where, despite the intermittent drizzle, ivy bees were collecting nectar and pollen to take back to their nests.
Heath potter wasps, no – ivy bees, yes
Bovey Heathfield is a nature reserve, about half an hour’s drive from where I live with several claims to fame. It is a surviving scrap of lowland heath, a fragment of the large area of heathland that once covered this part of Devon. Even though it is small, the heath provides a unique environment with unique wildlife and in August and September it bursts into life as the heather blooms covering the land with a pinkish purple sheen. It’s also the site of one of the more important battles of the English Civil War, The Battle of Bovey Heath 1646 and on the reserve, there are memorials to the conflict.
I went to Bovey Heathfield on a windy Saturday afternoon (September 28th) under partly cloudy skies to meet John Walters, a local naturalist and wildlife expert. John knows more than anyone else about a species of solitary wasp that frequents sandy heaths. This is the heath potter wasp and the plan was for John to show me these insects. Unfortunately, the weather was not sunny enough to tempt the wasps out but he did show me one of the pots constructed from muddy clay by mated females that give them their name. They attach these pots to stalks of heather and gorse and then lay their eggs in the pot, equipping it with caterpillars as food before sealing. These are mini-marvels of engineering and John has some wonderful video showing the wasps constructing clay pots (see here).
In the absence of these insects, John showed me the large colony of ivy bees that has built nests in the south facing sandy paths on the heath. The ivy bees were not deterred by the cool conditions; the males were very active and a number of newly emerged females were mobbed by them. I saw one mating cluster develop around a female resting on a heather stalk and wondered how they all clung on.
Ivy bees in a local cemetery
The river Dart drives a picturesque, watery wedge through the town of Totnes dividing it into two unequal parts. The eastern part, across the river, goes by the name of Bridgetown, a mixture of old and mostly new houses. Buried in the old part, behind the early nineteenth century St John’s Church is the cemetery. I rather like the cemetery, it is slightly unkempt with rough grass, trees, flowers and several large clumps of ivy. Most of the graves date from the 19th and 20th centuries and the place has a peaceful calm atmosphere. Last year I found ivy bees here for the first time, it was also the first time I had seen the species in Totnes. This year the ivy in the cemetery was late in flowering but finally on the last day of September some ivy bees appeared on a few of the open flowers. I saw males and pollen-carrying females, but not many of either gender. I wondered if they might be nesting in the cemetery but was unable to find any evidence. Somewhere nearby there must a nest aggregation.
As I was poking about looking for ivy bee nests, one grave stone, for Edwin Jordain, caught my attention. It was late Victorian, dating from 1893 and had fine carvings of flowers along the top edge unlike most of the other graves. I wondered whether the flowers were symbolic or just decorative and did a little research.
The flowers on the left side are most likely blue passion flowers. I learnt that these were very popular adornments to Victorian graves, representing the suffering of Christ. I feel less comfortable about my identification of the flowers on the right but I think they are lilies, linked with purity and innocence by the Victorians, especially after death. Many of the flowers depicted are open, apparently symbolising the prime of life; Mr Jordain was only 36 when he died. His epitaph perhaps sums this up: “Brief life is here our portion”.
Towards the end of July, I visited the Maer, a nature reserve situated at the eastern end of the promenade in Exmouth, a seaside town in the south west of the UK. With its sand dunes and sandy grassland, the Maer is a remnant of a much larger dune system that once stretched down to the beach. Nowadays, it provides an oasis of calm close to the busy sea front as well as a habitat for special plants and insects.
A slight mist softened the long views as I walked eastwards along Exmouth sea front. Some warmth penetrated the cloud and a few people were already enjoying the beach on this late summer morning. The sandy tip of Dawlish Warren lay tantalisingly close across the water and further on, the Ness at Shaldon lurked in the mist like a gigantic wedge of cheese. The commercial area with its big wheel, pubs and cafes was busy but eventually I reached a quieter part where sand and scrub tumbled downwards at the side of the beach road. This is the edge of the Maer, a local nature reserve and one of Exmouth’s hidden gems. Superficially, the Maer is a large grassy, sandy space sandwiched between the beach road and Exmouth Cricket Club but it conceals a mosaic of different environments with unusual flora and fauna.
A substantial sandy dune ridge forms the southern border of the Maer giving views across the reserve on one side and towards the beach on the other. Marram grass grows thickly giving the sand stability but there are also areas of bare sand and areas of scrub, reminders of the dune system that must have occupied this area before the beach road was built. Restharrow with its pink and white pea-type flowers and a few residual yellow evening primrose provided some colour but it was the sea holly that surprised. This is an unusual and unexpected plant that grows extensively along the first part of the ridge. Its spiky greenish-grey leaves with white margins and veins and its powder blue flowers light up the sand as though someone had spilt pale paint. Sea holly flourishes in these arid conditions by having leaves covered in a waxy cuticle to help retain water and through its deep roots. Although sea holly has some visual resemblance to our Christmas greenery, it is a relative of the carrot; in the past it was employed as an aphrodisiac.
Several large insects with bold black and yellow markings crawled about the bright blue sea holly flowers collecting nectar. These are beewolves, some of our most spectacular solitary wasps, that nest in sandy places and specialise in catching honeybees. Both male and female beewolves were feeding that day but it is the larger female (up to about 2cm long) that catches and paralyses honeybees and may be seen flying back to the nest carrying a quiescent honeybee beneath her. She digs a nest tunnel in sandy soil up to a metre long with multiple terminal branches where she lays eggs and provides honeybees as food for the developing larvae. These once rare insects have expanded their UK range since the 1980s, possibly in response to climate change and I saw them in several places on the reserve notably on a stand of mauve thistles. They are not aggressive towards humans.
Further along the ridge, before it is colonised by brambles, scrub and low trees, I found a large clump of an unruly scrambling plant covered in pea-type flowers of an impressive reddish-pink colour. This is broad-leaved everlasting pea, a perennial relative of our annual sweet pea, growing through the grasses on the Maer ridge holding on via thin tendrils. A chunky dark bee was feeding from the flowers, apparently undeterred by their jerky movements in the breeze. This was a leafcutter bee, most likely the Coast Leafcutter Bee that favours sandy habitats near the sea. They nest in burrows in vegetated sand lined with pieces of leaf cut from trees and plants. Later, when the sun came out, I saw several of these bees chasing one another around the bright pink flowers like children in a playground.
The large central part of the reserve was coated with golden brown grass criss-crossed with paths for walkers and looking very dry, a reflection of the recent lack of rain. Within the grass were mats of restharrow and many of the yellow dandelion-like flowers of catsear. One area resembled a lunar landscape with many small craters where the surface had been dug out exposing the sand. Solitary wasps and small leafcutter bees had happily nested here.
Tall clumps of ragwort with bright yellow daisy-like flowers and deeply lobed green leaves were dotted around the central area. This plant provides valuable habitat and food for invertebrates and I found one clump that had been appropriated by black caterpillars with prominent yellow bands. They were moving about, eating the leaves of the ragwort, voraciously consuming the greenery and destroying the upper parts of the plant. These are caterpillars of the cinnabar moth and as they feed, they assimilate some of the toxic alkaloids contained in ragwort, rendering themselves unpalatable to birds and other predators. It is said that their yellow stripes act as a warning to birds. Once fed and mature, the caterpillars dig themselves into the ground to spend 12 months or so as pupae before emerging as beautiful day-flying red and black moths. The adult moths live for a few weeks, feeding on nectar before mating and laying eggs on the ragwort leaves. The eggs grow into caterpillars and the cycle starts all over again. The cinnabar moth is entirely dependent on ragwort for its survival.
Towards the western end of the reserve, I found a large colony of flowering plants, perhaps suggesting damper conditions. Clumps of common mallow up to a metre tall dominated with their trumpet flowers composed of five deep pink petals each with purple stripes. At the centre of each flower was a mass of grey pollen-covered stamens emanating from a single stalk like a miniature bunch of flowers. Near the mallow, large areas were covered by a sprawling, scrambling plant richly covered with pea-like flowers above many small, spear-shaped, mid green leaves. Flower colours varied from very pale to light blue, mauve and deep purple with some plants having several of these colour variants. One plant even had bright yellow flowers. This is Sand Lucerne, a fertile hybrid of lucerne and sickle medic, naturalised in East Anglia, where its two parents grow together, but now transplanted elsewhere.
There’s so much to see at the Maer and I could easily have spent several more hours looking about. But I had a train to catch so I headed back along the promenade and across the town towards the station.
Earlier this year, I wrote here about the plastic pellets that were appearing in large numbers on Charmouth and other nearby beaches in West Dorset in the south west of the UK. A group of us investigated the problem and discovered that many of the plastic pellets were biobeads, used by local water companies in sewage purification before the treated and purified effluent is discharged into the sea. We showed that, most likely, the biobeads were escaping, along with treated effluent, from the sewage works at Uplyme run by South West Water to pollute the very beaches they were intended to protect. The post created considerable interest at the time especially on Facebook. Then, a few weeks ago. the story was picked up by the local daily paper, the Western Morning News. Here is the article:
Should you wish to read the text of the article, I have enlarged it and cut it into two parts below.
As you can see, a local photographer, Richard Austin recently visited Charmouth Beach with his granddaughter and was shocked to find these plastic pellets littering the beach. The well-respected local journalist, Martin Hesp, then took up the story and the feature article was the result. In my opinion, he gives an excellent account of the problem stressing, in particular, the health implications for both children and marine life.
The Western Morning News asked South West Water (SWW) for a response and their Director of Wastewater, Andrew Roantree responded in the article. I was not asked to respond so I want to take up a few of the points he makes.
He says “From the photographs these (the pellets we found on the beaches) look as though they could be biobeads”. I’ll take that as a begrudging yes. Besides, we found the same pellets at the Uplyme sewage works and one of SWW’s employees confirmed that they are used there so we know they are biobeads.
He goes on to say that “…………….we are confident that there has been no loss of biobeads from the (Uplyme) site………. Any escape of biobeads is unacceptable……………….In 2017, we reviewed and updated the technical standard covering their use at our treatment works. This included requirements for storage of used and new biobeads. We also conduct regular site inspections………………….Uplyme Sewage Treatment Works has secondary and tertiary containment measures installed to prevent any biobeads escaping from the process units.”
When we visited the sewage works in February 2019, we found biobeads scattered around the site, so until quite recently biobead husbandry at Uplyme was not as rigorous as he implies.
We know that SWW uses biobeads at Uplyme and we know the identity of the two types of biobead used (knobbly black and ridged bright blue). These same biobeads appear on the beach at Charmouth so it’s not unreasonable to suggest that these two observations are linked.
When we visited in February 2019, the SWW representatives told us that the new containment measures at Uplyme were incomplete so escape of biobeads was still possible until a few months ago. Anyway, why did SWW go to the expense of installing extra containment measures if there were no containment issues in the first place?
The good news, if we are to believe Mr Roantree, is that containment of the biobeads at sewage works run by SWW is now much improved so there should be a gradual reduction in the numbers appearing on our beaches.
There is also a misunderstanding in the article. Biobeads are not “designed to catch nasty bits in the water”. They are designed to act as a solid support for bacteria to grow on and digest the sewage. Their ridged or knobbly nature provides a larger surface area to accommodate more bacteria to hasten sewage digestion. As they are made of plastic, they do absorb organic chemicals like PCBs from the sea but then so do nurdles, the raw material of the plastics industry.
It should also be acknowledged that the installation of the additional pellet containment measures by SWW results from the extensive activities of the Cornish Plastic Pollution Coalition who first highlighted the biobead pollution problem on beaches in Cornwall (see report).
The picture at the head of this post shows Charmouth Beach with Golden Cap in the background.