Wednesday, 20 November 2013

We were all off on an autumn holiday

As I prepared to write this diary the solemness of the eleventh hour of the eleventh day of the eleventh month was upon us.  Our TV screens were also starting to fill with the horrors of the devastation wreaked in the Philippines by Typhoon Haiyan, raising the city of Tacloban to the ground and killing thousands of people.  As the eleventh hour approached I headed out, parking the car by the road to Lurg Farm on the outskirts of
Nethybridge to have a short walk and as Big Ben started to chime eleven times I had the place to myself with a view out towards the cloud covered Cairngorms.  What a contrast.  Ninety nine years ago millions of Brits were about to loose their lives in Europe and in the Philippines millions of folk were seeking food and water just to stay alive.  And me?  I was about to walk the length of a recently installed deer fence to see if any birds had collided with it and you start to think that there are bigger things in this world to worry about.  I hope you all bought your poppy and sent your donation to the DEC appeal.

October started with a search for a new laptop, my trusty old Dell Inspiron was starting to need repairs, was running slow and, from April next year, Microsoft will no longer be supporting the simple to use Windows XP software installed on it.  So, it was time to bite the bullet and upgrade(?) to a newer, faster machine and the horrors of having to learn to use Windows 7.  The purchase though was timely and the new laptop was pressed straight into use to assist with a talk to a local history group, the new laptop having the ability to “talk” to the PowerPoint projector, something my old machine refused to do.  Progress! 

At the end of September a very worrying event took place just up the road from Firwood, a section of the Abernethy Reserve caught fire.  I was just driving back down the road towards home when I realised I could smell smoke and just at the same time, Ian, one of the reserve staff was also just about to park up to see what was where.  Another member of staff was already in the trees trying to find the fire and an argocat (an
off road 8-wheeled vehicle) with water bowser and mist sprayers was on its way, as was the local fire brigade, who I met as I made my way to the Mondhuie Wood entrance.  As I parked up I was just quick enough to grab a few photos of the second fire engine arriving before setting off to follow an old timber extraction route towards the fire, hoping that someone would have a spare fire beater once I got there.  I didn’t think it appropriate to take my camera so sadly, this was left behind.  At the fire site John and Sandy from the village were already tackling the fire with cut sections of juniper bushes, the argocat had just arrived and generally, the fire was reasonably quickly brought under control, just as well, as there were no spare fire beaters to help bash out the flames which continued to flare up in some areas.  John and Sandy had seen the smoke from their houses and had phoned RSPB and the fire brigade before setting off.  Despite the dryish weather of September, the fire wasn’t roaring away and was generally confined to an area of dampish ground probably no more than a hectare in size.  However, it looked like it had been burning in the peat for a couple of days before “taking off” and that
Fire scarred trees
it had originated from an overnight campfire which hadn’t been properly extinguished.  A lucky escape.  As I looked around I could see one large wood ant nest in the middle of the burnt area hadn’t been so lucky and was smouldering away quite badly, meaning the nest would have to be flattened to ensure no smouldering embers remained.  How I wished I had brought my camera, if only to record the loss of the nest.  However, I thought back to another fire in another part of Abernethy in the mid-1980s where a large ant nest had been burnt and amazingly, though the nest was destroyed, the ants survived, so it would be interesting to visit this one again once the fire had been fully extinguished.  The Abernethy staff were on site for a couple of days until they were happy the last smouldering embers had been dealt with and it
The Sickener (Russula emetica)
was a few days after that before I returned to see what remained of the ants nest.  Despite the blackened Scots pine trunks and burnt vegetation, there were already signs that the tussocks of cotton grass had started to recover, and a brilliantly red cap of the fungus The Sickener (Russula emetica) had appeared from the charred embers.  More amazing, was the scurrying activity of wood ants, working feverishly to re-build their nest in the hollowed out crater, the only obvious evidence that remained of their once magnificent nest.  In just a few days the ants had already assembled a small mound, which, hopefully, could be added to over the next six to eight weeks to provide a mini-dome capable of shedding the worst of the winter weather.  So how had they survived?  The burnt nest was quite large and hence old, measuring four feet across the base of the mound, and estimated to have been about three foot in height.  Although we see the mass of twigs and needles that make up the nest above ground, another part of the nest
The 4' diameter base of burnt ant nest with new build just visible
goes well underground, providing the ants with reasonably secure accommodation for the winter months.  The mound above would shed the water and snow and the underground section would probably be maintained at a few degrees warmer than the surrounding air on cold days.  So, despite the fire removing the “nest”, many ants, including queens would have survived below ground and with the RSPB folk removing most of the smouldering nest, this would have stopped the fire from burning down into the ground as it had done in other sections of the woodland.  Some ants would have also survived by being out collecting nest material and food, the latter often from high in the surrounding trees. So, as soon as it was safe to emerge the surviving ants started doing what ants do best, nest building, and though many ants would have perished, those that had survived would be having a good go at producing as much of a thatch before the
Typical size of 4' diameter ant nest
worst of the winter weather arrives.  One major aspect of the ants lives that would have been disrupted though, would be their immediate food supply, comprising the many small insects, including aphids, that the ants scour the surrounding vegetation and trees to find.  Only time will tell, but on my last visit just a few days ago the old nest crater had a mound several inches high in its centre and though work has now stopped for the winter they may just have been able to do enough to allow the fire survivors to see the first warm days in February 2014.  Fingers crossed and watch this space.

The 6th October was quite a nice day in Nethybridge, the sun was out and there was a bit of breeze so it seemed the right sort of day to go and have a last look for alpine bearberry (Arctostaphylos alpinus), the nice red-leaved plant which featured last month.  This plant has yet to be found on the RSPBs Abernethy Reserve so I thought one last big effort to a series of tops forming the boundary of the reserve with the
The days outing, both tops
Forestry Commission in Glenmore might produce the goods.  I decided the best way to the top of Craiggowrie would be from Tulloch Moor and I had warned Janet that if everything went well, I might need a lift back to my car from the Glenmore café.  As I made my way across the Glac Mor flats below the steep climb up Craiggowrie I started to doubt that I had made the right decision as the wind was starting to blow quite strongly and I had hardly started to ascend.  Willow trees were checked for galls and lichens as I passed them and the wet flush I was following upwards produced one or two different plants worthy of note.  Somewhere along its length there is an old record of bog orchid, and though most suitable sites were checked, nothing was found.  Eventually the ridge well west of the summit of Craiggowrie was reached and I had a job to stand up and when I reached the summit I was glad of the shelter that comprised part of the summit cairn and decided this was the best place to have lunch, but all the extra layers of waterproofs would be needed to try and fend off the wind.  Over lunch I made a note of a couple of lichens on the rocks and took out my GPS to show the location.  I then realised that Craiggowrie and the
Tulloch, Lochs Mallachie & Garten
from Craiggowrie
ridge beyond was a bit below the 700m contour, something I should have checked on the map before setting off rather than relying on out of date memories!  Lunch over I headed out along the ridge checking any suitable looking bits of habitat for the bearberry, but nothing looked quite right.  The ridge path took me down into a hollow and up onto next rocky knoll which just got me into the 700m height, but without a single suitable bit of bearberry habitat in sight.  The aim from here was to have progressed on to Creagan Gorm and Meall a’ Bhuachaille before heading down to the café at Glenmore but with the wind trying to part me from my waterproofs it was time to bale out and head back toward Tulloch and my car.  All was not lost though as I was able to head north out onto another rocky outcrop before heading down via the Craiggowrie Burn an area I had never visited before, and
The lichen Alectoria ochroleuca
Delbog and then to the car.  As I reached the rocky outcrop something in my head was reminding me that I might be in an area where the rare mountain lichen Alectoria ochroleuca had been found in the recent past, despite the area being well below its usual altitudinal range.  Just as well I had remembered because after finding the first small patch of this creeping, thin branched lichen, more and more patches started to appear, the subtle yellow colour distinguishing it from other similar looking lichens on site.  Alectoria comes from the Greek for ‘hair’ and that is just how the lichen appears as it sits there in a slightly tangled yellowish mass on the short vegetation.  My GPS informed me that I was at around 670m, almost 100m below where you
Rock Art Craiggowrie Burn
would normally expect to find it.  And then the hard downhill slog began, walking through deep, tussocky vegetation all the way down the burn and beyond.  The burn with its mainly Scots pine woodland was interesting but didn’t produce anything out of the ordinary and it was with great relief that the track from Delbog was reached and normal walking could be resumed.  Halfway along the track I met Sally who thought I must be absolutely mad to have tackled Craiggowrie by the route I had taken.  Lesson learnt, and with only seven entries of notables in my diary for the day, not the most productive of outings.

Another outing took place which lead to a bit of deer dung related work!  A couple of water beetle recorders (Garth and Don) were visiting the Abernethy Forest area to check sites where the unusual beetle Agabus (now Ilybius) wasastjernea had been found in the past.  This beetle that made an entry onto the British beetle list originally as a fossil record, only to be found alive, in 1991, following some pitfall tapping work linked to capercaillie research, in Abernethy Forest.  The original “find” came about after I had ensured that all beetle specimens, once counted as potential bulk prey items available to capercaillie, were sent to a
Garth & Don the water beetle survey team
beetle expert, John Owen.  John had been undertaking surveys as a volunteer at Abernethy for the previous twelve years.  The find created a bit of excitement in the world of water beetles, and following the original identification by John and subsequent searching in the forest to find the habitat occupied, a paper was produced for the Entomologist's Record, Vol. 104, in October l992, titled “Agabus wasastjernae - Sahlberg (Col.: Dytiscidae) New To Scotland, by Owen, Lyszkowski, Proctor and Taylor.”  Sadly, I’ve been unable to find a link to this paper that is easily accessible on the internet, so a short excerpt is given below, précised a little to save space.
Sub-fossil history in BritainWhile these specimens of A. wasastjernae are the first to be recorded from Scotland and the first to be recorded in Britain for historic times, examination of sub-fossil deposits have shown that the species lived in Britain in the past.  Coope (1959) examining Pleistocene deposits from
Current UK distribution of
Ilybius (Agabus) wasasjernae
Chelford, Cheshire, found fragments of a number of specimens of A. wasastjernae along with fragments of ten other water beetles of the family Dytiscidae, of which eight are among those we found in searching for specimens of the Agabus in Abernethy.  These deposits were dated by 14. C (carbon dating) as were deposits from Church Stretton, Shropshire, where more fragments of the beetle had been found.  These deposits gave a 14. C date of 8101 ± 138 years B.P.  Since most of Britain has been free from glaciation since that time there is every reason to suppose that A. wasastjernae has had a continuous presence in Britain in the past for at least 8000 years, becoming a northern species as its required habitat became extinguished in the south. Examination of sub-fossil deposits has demonstrated the presence in Britain in the past of many beetle species which are present in Britain today but this is apparently the first instance in which a beetle was known from such deposits in Britain some years before it was discovered in Britain alive.”  
    Despite the publicity generated by this find there have been few records for the beetle since the early 1990s and the reason for the current visit was to see if it could be found in a couple of its old haunts.  Knowing the location of the 1991 site and having found the beetle there and in other locations since, I was invited along to help with the search.  Sadly, the dry summer meant that there was hardly any water in the
Chickweed wintergreen &
seed head by pools
root holes where the beetle had previously been found and the only bit of evidence it had been there was a single wing case or elytra.  However, Garth was also keen to check groups of red deer droppings for a species of dung beetle - Cercyon borealis, which had yet to be recorded in Britain.  More about deer droppings shortly.  By the side of the last root hole we checked another very small insect caught my eye which Garth suggested might be a shore bug, a group he didn’t know intimately, so the specimen was popped in a tube to be looked at once I got home.  On the way back to the car I managed to find a single specimen of the tooth fungus Hydnellum caeruleum, something that Don had long wanted to see so just time for a photo before we said cheerio and parted company.  Once home, the wee bug was very well behaved and allowed my to take some reasonably good photos to aid its identification, and once I visited the British Bugs website I was reasonably happy that I had the right name –
Shore bug Chartoscirta cocksii
Chartoscirta cocksii.  An email with photo to expert Stephen confirmed my identification so I set off back to the forest to release it almost where found.



Sarcodon glaucopus
On the way back from releasing the wee bug I just happened to find a place where a red deer or two had spent the night and there were several piles of reasonably fresh droppings.  Could Garth’s dung beetle be within?  Poking a few droppings it was obvious that something had been living within them but it was also obvious that I could be there for some while checking them one by one with a stick!  So, into a polybag they all went, sealing the bag securely before heading back to the track.  By the track another tooth fungus was spied this time the rarer Sarcodon glaucopus and hiding under the heather were another four fruiting bodies, enough for me to take one to photograph and check the spores.  Back home the deer dung was placed in a deep tray and then water was added so that the tops of all the individual “pellets” were just above the water.  Almost immediately beetles started to appear and within an hour a real mix of species were sitting on top of the balls of dung.  Several of the rounder shaped beetles were collected whilst the rove beetles known as Staphs (Staphylinids) were released, being one of the more difficult group of beetles to ID and with no one readily available to undertake the task.  The tube of beetles was then sent off to Garth who identified Cercyon impressus and a colleague identified two species
Sarcodon glaucopus spores x1000
of Aphodius, A. pedellus and A. fasciatus.  All three species had previously been recorded by John Owen, an amazing coleopterist.  Not knowing what was what before sending the beetles off, links are given below to websites with photos of each species.  The tooth fungus though produced lots of spores and despite having seen hundreds of fruiting bodies of this fungus during the survey years; this was the first time I had taken the opportunity to look at the spores.  Amazingly tiny, measuring only 5-7 microns (0.005 to 0.007mm!) but beautifully ornate with their tiny warts (tubercles) making them look a bit like stars.

Mid-month saw the bulk of the Scottish contingent of the Taylor clan heading south for a weeks holiday in Lancashire, time to catch up with great gran Holden and to let her meet up for the first time with great grandson Harry.  So Janet and I piled in with Ruth and the boys and headed off down the A9 with baby Harry demanding only two stops during the 350 miles.  The same journey in a years time might need
Great gran & the boys
passports and travellers cheques if “our dear leader” has his way!  Janet had found a cosy cottage about ten minutes drive from her mum’s and close enough to the Lancashire members of the Taylor clan for the occasional get together.  Outings with the six year old and four year old boys was good fun but a test of being able to run to keep up with them in races round the local parks and with four month old Harry the old biceps were well exercised in between sleep and feed times.  We visited Ribchester, Longridge and Slaidburn to dine, shop and walk and a final days outing to Townely Hall near Burnley found a brilliant bit of ancient woodland, fountains and a nice café.  For the first time in many a year we saw lots of ladybirds, two of which, found more than once, had me guessing a bit with a leaning towards harlequins, where male and female are quite different.  This ladybird is a very recent arrival in Britain the first ones only being found in summer 2004 but since then the spread has been rapid and not good news for our native species.  The harlequin breeds continually during the summer so the population grows very rapidly, our native species reproduce
One version of the harlequin ladybird
only once a year.  The harlequin also has a voracious appetite and can out-compete our native species.  Since its arrival several UK native ladybirds have declined quite notably.  Visit the Ladybird website below to read more about this ladybird and its amazing spread across Europe.  Once home the photos were sent to the UK Ladybird website and all were confirmed as this species, the Longridge record being from a new map square.  The other things of interest related to oak trees.  Whilst racing the boys round a small park in Longridge (well Harry was actually in his pram) I pointed out a leaf to Finlay who told me it was an acorn tree and many of the leaves we looked at were heavily covered with spangle and silk galls.  A search on the ground produced several acorns with the hat shaped knopper gall covering the nut,
Another version of the harlequin
something we also found in quantity at Townely Hall.  The week went by in a bit of a blur and soon it was time to say cheerio to great gran before heading back north, just in time to get the chalet ready for the arrival of Zoe and Darren and their amazing motion activated trail camera which captured visiting pine martens during every night of their stay.

Enough, enjoy the read.
Stewart and Janet

British Bugs website - brilliant
Website with photo of Aphodius pedellus
Website with photo of Aphodius fasciatus
Website with photo of Cercyon impressus
Harlequin ladybird
Buglife Calendar 2014 - £6.50 inc. p&p.

Andricus seminationis gall on local oak tree
Support Buglife see weblink above
Slug (Arion ater) eating waxcap (Hygrocybe conica)
Photos © Stewart Taylor