Friday, 21 July 2017

Mystery bones and pond dipping delights

A busy morning this Friday, with a family bringing some bones to identify from Laggan Point, and having a look at some of the beasties caught during yesterday's pond dipping.

Water-boatmen found in the pond at Bruichladdich. 
Water fleas (daphnia) also found when pond dipping. Can you see the tiny dots? That's them!
Two sections of  the lower jaw of a seal found at Laggan Point.





















The bone above the jaw bones in the picture was also found here, and appears to have the structure of the last vertebrae (sacrum) of a small cetacean, such as a bottle nose dolphin or porpoise which are often seen around Islay. Any other suggestions as to what this could be are very welcome!

Wednesday, 19 July 2017

Water Dragons and Scorpions

This Thursday at Bruichladdich Pier, meet Steve and embark on a pond dipping adventure for water dragons and scorpions, mini beasts and much more! All ages welcome, free to all and starting at 2pm at the Pier for onward travel. Don't miss out!

Also, this Sunday also at 2pm, head to Loch Skerrols, Bridgend Woods, to enjoy a Summer Fungi Foray. Remember, fungi is not just an autumn event!

Monday, 17 July 2017

Yellow Horned Poppy and Small Pearl Bordered Fritillary sightings

A visitor sent us a couple of nice records for the island during their recent visit, a poppy and a butterfly.  One new and one rarely reported - Well done Tom Garner and thanks for some lovely photo's of them.

Small Pearl Bordered Fritillary, seen on the slopes of Beinn Bheiger often reported on Jura but rarely seen on Islay.


Yellow horned Poppy found on a beach near Laggan Point. 





Malcolm commented: "Yellow Horned-poppy is new to the vice-county (Islay, Jura, Colonsay), which is always nice to achieve.  There are records from Mull and Kintyre, so its appearance here is not entirely unexpected, though as it happens the most recent of those records is as long ago as 2001. I also think it goes to show the value of walking relatively ignored stretches of our coastline."

There is a tremendous growth of strandline plants at the minute, Kilnaughton Beach has a prolific spread of Sea Rocket I saw when last down there for a mini-wildlife adventure family activity.


Port Mor - Nature rAmble 16th July 2017

Port Mor - Flower rAmble


It was a beautiful sunny day for a change and we were investigating our own doorstep, Port Mor playing fields in Port Charlotte if you investigate below the camp site has a great range of diversity of plants and the many birds along the shore.



Spear Thistle: a typical image of  the traditional Scottish thistle,
with radiating lanceolate leaves at the base from which each flower
stem has a single flower head





We started investigating the plants along the track to the beach and the first to stand out is the good number of thistles , flowering and producing seeds.  These large prickly plants are fantastic for providing nectar for insects and once the seeds ripen will be a bounty for the goldfinch that were investigating their food potential.  There were three species all side by side which was a great way to show the differences, Spear Thistle, Great Marsh Thistle and Creeping Thistle.

Creeping thistle: smooth stems, very jaggy leaves
with a neat flower head in an open cluster
Great Marsh Thistle: A gangly spray of heavily spiky
stems with clustered of flower heads
























Down at the shore the family of Shelduck have been doing very well, they still have 5 half grown youngsters with them not a bad feat for these ducks.  Off shore we watched a Gannet diving repeatedly for fish.



A meander along the shore provides a whole host of dry and wet patches which give a range of small niche pockets across the site aiding the great diversity of plants that will grow here.  In the damp flushes: Sphagnum, Sundews, Bog Pimpernel, Butterwort, Bog Asphodel, Marsh Lousewort and Marsh Pennywort.  

Bog Pimpernel

Thyme draping over rocks


In the dry areas overlying rock outcrops: Calluna heather, Bell heather, Clovers, White and Red; Birds-foot Trefoil; Eyebright, Wild Thyme; Fairy flax; and then on the really thin soils, English Stonecrop and lichens.  Interspersed through there is Tormentil, Self-heal and Heath Spotted Orchids.

Although it was a bit windy for butterflies we did see some Ringlet and a Magpie moth hiding out of the wind.









Next weeks' walk is for those with a fascination for fungi, Alistair will be taking you through the woods at Loch Skerrols to find what fungi is fruiting at the moment, with this so far damp summer there should be much to find.  Fungi don't just fruit in the autumn Spring and Summer can produce a diverse range of species, so please go down to the woods next Sunday and discover the toadstools of Summer.

Fiona

Seals, hermits and a little fishy

Mini Wildlife Adventures - Seashore Nature Safari

Killinallan is always a great place for sea creatures and it did not disappoint last Thursday despite a bit of rain.  

Under every patch of seaweed there were crabs, many were soft shelled having just molted, developing a new jacket after shedding their last ha
rd shell and were hiding waiting for it to harden up and once more protect them from predators.

Fishing for Opossum shrimps
If a sea snail shell was not inhabited by a sea snail (periwinkles mainly) it was now home to a hermit crab, they came in all sizes from the most 'diddy' to the largest periwinkle shell there was.  Some were of the species which cultures a growth over the shell to help camouflage it in.

Opossum shrimps were plentiful hanging in the lea of floating weed with sand shrimps darting about over the sand.

Pipefish





The best of the day was a small pipe fish (related to the seahorses). 

We brought some of our finds (hermit crabs and small shore crabs) back to the Nature Centre in Port Charlotte to join others in our tanks.  There are so many fascinating little beasties exhibiting lots of natural behaviour, it is a great place to bring the children and watch what goes on under the sea!

Wednesday, 12 July 2017

Glasgow students' talk a hit!

It was an excellent night last night when 7 students from the University of Glasgow's Remote Islands Expedition presented the findings of their environmental projects to an enthusiastic audience. In a nutshell, whilst on Islay the students: 
- found the best way to trap and release small mammals for research projects;
- found flint in a location it has never been found before;
- tested out pollinator research methodology for the joint research that INHT and Re-JIG are doing;
- worked with Re-JIG to quantify plastic waste;
- updated bird records.
After the presentations the discussion continued well into the evening over tea and cake.
The students all enjoyed their stay on Islay and are keen for next year's expedition, to build on their work and the good relationships they have made. We look forward to having them back!


4 of the 7 students at the INHT Nature Centre

Tuesday, 11 July 2017

Mini Wildlife Adventures and Nature rAmbles

Don't forget we have our kids' activities every Thursday afternoon at 2pm. This week join Fiona at Killinallan, Loch Gruinart to discover seals, hermits and little fishes 🐟
... Some have called it a sandy, seashore bonanza! Don't miss out! And as an added bonus, it's totally free.

Also feel free to come along to our Sunday Nature rAmbles, this week at Port Mor, Port Charlotte, "On My Doorstep." Have a wander around the playing fields at 2pm and explore a host of habitats, plants and insects 🐌 The cost of this fabulous walk is £5 per person, £10 per family and £2 for INHT members.

Sunday, 9 July 2017

Geological Walk on the Oa

The forecast was rain between the showers but nine would-be geologists braved the weather to look at the rocks around Port nan Gallan on the Oa. After a briefing under the shelter of van's awning we descended to the bay and looked for fools gold (Iron pyrites) in the metamudstones near the waterfall while we were closely watched by a group of seals in the bay next to the 'submarine'. We also dropped acid on limestones and watched them fizz, saw breccias reddened by iron and manganese and boulders of granite in the 650 million year old glacial deposits of the Port Askaig Tillite under the cliffs of made of the Jura Quartzite. So much to see we forgot about the rain!
sheltering from the rain

fools hunting for gold!

on the Jura Quartzite

seals next to the 'submarine'




Thursday, 6 July 2017

Geology on The Oa - 9th July 2017

Join Dave on an exploration of the geological features on The Oa this Sunday. Discover faults and folds, deserts and glaciers, and enjoy spectacular coastal scenery. Commencing at 2pm and lasting 1.5 - 2 hours, admission is £5 per adult and £10 per family. For INHT members the cost is £2. Meet us at RSPB Oa - American Monument car park. 

We look forward to seeing you there!

Wednesday, 5 July 2017

Islay Expedition 2017: Talk by students from University of Glasgow University next Tuesday 11th July

Next Tuesday evening at 7pm sees the University of Glasgow students giving a talk about their current research expedition to Islay. Join us at the Centre to hear about the research and various projects being carried out on the island. We would love to see a mixture of ages and audiences come along to an evening full of fun facts: topics discussed will include Geological Research, Pollinator Research, Methodological Research on Small Mammals, Research on bird biodiversity in Moorland, Farmland, Woodland and Coastal Habitats, and Community Outreach. 

For almost 80 years, the University of Glasgow has been sending a team of students to conduct research on the diversity of species in remote locations on the western isles of Scotland. In October 2016, the University selected a team of eight students to conduct environmental research between the 2nd of June and 14th of July 2017 on the Isle of Islay. Each displayed a strong passion for environmental change and enthusiasm for the research proposed. Since arriving on the island, team leaders and members have been working hard to ensure the expedition is a success, and their positive relationship with the local populace on Islay is maintained and strengthened.

This year, the expedition aims to establish new research in co-operation with local NGOs and build on existing studies undertaken on previous expeditions to Islay.  More specifically, the expedition will undertake research to enhance local knowledge and understanding of native biodiversity and the threats it may face on the island.

Please join us for what will be a fascinating talk!



Seen a sea gooseberry?

Here's a photo of one of five tiny but beautiful scintillating sea creatures that a family brought into us here in the Nature Centre - a quick search through the library and a trawl of the internet identified them as Sea Gooseberries (Pleurobrachia pileus), described as a "solid ovoid, to 20 mm long, with plumed fishing tentacles up to 140 mm long". Of the 5 in the bottle, three had these tentacles which they use to catch food. They were found on The Strand where apparently quite a large number were in the sea there, and according to the book they're especially abundant in the summer. Thanks to the family for bringing them in, it's been great to show them to other visitors before releasing them back into the sea! :-)

Monday, 3 July 2017

Sunday's Nature rAmble - Dune Delights

A Great Delight of flowers was had at Killinallan



A less than promising day weather-wise did not dampen enthusiasm for our dune excursion to Killinallan on Sunday, 13 keen adults and children enjoyed seeing the Redshank and Oystercatchers along the shoreline and counting all the Grey Seals bobbing about in the water intent on watching us and what we were doing.

Searching the pools for pond skaters





The brackish pools amongst the saltmarsh had small shoals of stickleback and pond skaters on the surface.  Amongst the saltmarsh vegetation were common spike rush, sedges and the corriander tasting Sea Arrowgrass.

As we crossed the moist threshold into the dryer dune grassland we had Ragged Robin, Marsh Lousewort and Grass of Parnassus, the beautiful simplicity of its flower, with its stem hugged by its single heart shaped leaf always a pleasure.  The dunes were a patchwork of species with Lady's Bedstraw; Hairy Thyme; Bird's Foot Trefoil; Eyebright; Mouse-ear Hawkweed; Daisy; Buttercup; White and Red Clover; Self-Heal.  These standard array of dune species were peppered with the small white flowers of Fairy Flax; the subtle blues of Milkwort; and the first mauve flowers of Devil's Bit Scabious.  

A chance encounter with a Frog




Where the ground was wetter Meadow Sweet, Yellow Flag, Tufted Vetch, Water Mint, Valerian, and Marsh Thistle all came into play. The damp conditions also favoured the occasional frog.







Burnet Rose
In a great marshy depression there is a host of other species, Burnet Rose spreads out in an extended patch alongside Black Bog Rush, upon which were the vacated cocoon cases of the Six Spot Burnet moth, which has now pupated and flying in profusion across the dunes.  Marsh Pennywort peppered the whole dune slack area and an occasional spike of Marsh Arrowgrass.  

Six-spot Burnet Moth on Tufted Vetch










We were all really looking forward to an orchid bonanza and as always Killinallan did not disappoint, our first encounters were Pyramidal Orchid on the dryer dune area alongside Common Spotted Orchid and the deep purple of Northern Marsh Orchid. The bold pinks and purples were easy to spot against the grassland but it was not long before the eyes began to pick out the subtle colours of the Frog Orchid.  Then we began to find Fragrant Orchid, getting on hands and knees to double check the scented nature of the flowers.  When we moved into the marshy dune slack area, those orchids which favour a more damp habitat were soon spotted - Common Twayblade, its two wide leaves enveloping the base of the stem.  This damp spring has meant that the moist nature of the slack has affected the conditions further than in a dry season and we were delighted to spot many specimens of the beautiful Marsh Helleborine, one of my favourite orchids.  So not bad for a few hours, seven orchid species all in great conditions.  41 plant species, named though we didn't delve deep into grasses.  We also had a good number of Shaggy Ink-cap mushrooms protruding for old cowpats.  
Marsh Helleborine
Northern Marsh orchid


















Pyramidal Orchid
A cluster of Frog Orchid
















We also had a good number of Shaggy Ink-cap mushrooms protruding for old cowpats.  
Shaggy Ink-cap




The conditions were not good for flying insects and the only six legged beasties we found were the Six-spot Burnet moths frequenting the flower heads and a single Common Blue male clinging onto the vegetation for fear of the wind whipping it away!



A wonderful afternoon in great company, thanks to those who joined us and please feel encouraged to join us over the summer, lots to see and lots to learn.  Next Sunday is a Geology special, the rocks on the Oa, meet at the RSPB American monument car park (2pm).

Fiona MacG

Thursday, 29 June 2017

Join us for Dune delights at Killinallan this Sunday (2nd July)

The Best Dune Flowers of Islay

This is one of my favourite nature rAmbles each year there is so much to see in a short space of time.  A wondrous patchwork of colour and such an array of orchids.  Hoping for a nice sunny day that the flowers are host to lots of lovely butterflies and moths too.


Fragrant Orchid and Six Spot Burnet Moth

Pyramidal Orchid and Six-Spot Burnet
Frog orchid and soldier beetle
Everyone is welcome to join us at 2pm at the end of the road at Killinallan gate (east side of Loch Gruinart). Small charge of £5 per person, £10 family (2ad + children) all going to the Islay Natural History Trust funds

Sunday, 25 June 2017

Geological Ramble at Saligo

A great turn-out of 16 for this first geo-walk of the season. The weather was (mostly) fine and as well as looking at the Colonsay Group turbidites, some folds and two different igneous intrusions we made a 'timeline' on the beach (photo) and managed an extended walk out to Campa to see a great example of a anticline (arch) - which gives the area its local name of 'The Arches' (photo).


Friday, 23 June 2017

Sunday afternoon nature walks - Sanaigmore

Sundays Sanaigmore Nature rAmble through the dunes



The weather cleared although a low cloud and mist still hung heavy over the nearby hills.  It was an enthusiastic group and lovely to take out and spot birds and flowers, though too damp for butterflies.  

Along the shore were the always present Oystercatchers with Ringed Plover and Common Sandpiper calling too and showing some clear views.  Out in the bay a solitary Black Guillemot  showed well and the distant calls of Chough were later rewarded with a close up view as one decided to sit on a nearby fence and have a chat with a sheep!  The group were pleased to then be able to pick out the birds red legs and curved bill.  Further around the dune on an area of raise beach pebbles the small Common Gull colony was busy and amazingly one of the group spotted two young chicks as they moved amongst the pebbles, soon dissolving into the jumble as they became motionless again.

Common Milkwort alongside Eyebright yet to flower
The flowers were varied, some in bloom and some just coming out.  An exchange of knowledge on small identifying features is always welcome as we all go away having learned a little more from the day, for me Lesser Hawkbit and its concave leaf ends.  Storksbill and Hawkbits in full splendour, with Eyebright, Bird's Foot Trefoil, English Stonecrop just appearing.  Common Milkwort , Trift and Thyme interspersed the grasses and rocky outcrops.  Lesser Meadow Rue was found growing amongst some rock and pebbles above the high tide line out of easy browsing from the sheep.  In the wetter marshy areas Ragged Robin, Water Forget-me-not, Lesser Spearwort, Water Mint, and Northern Marsh Orchid, along with what I found to be (I hope) Thyme Leaved Speedwell.

Thyme

Sea Plantain alongside Buckshorn Plantain

Lesser Meadow Rue 






















An altogether pleasant afternoon.  For those who like their natural history more ancient and solid, this Sunday's rAmble will be with David Webster who will be explaining all about the ancient rock formations, folding and intrusions exposed for all to see on the beach at Saligo.  So for a fascinating afternoon meet at the Saligo gate at 2pm.

Fiona MacG

Sticklebacks and Solar Powered Sea Slugs


Here at the Islay Natural History Trust we work hard to maintain the tanks and keep them in good condition so when we see contented creatures breeding and displaying, a sign of a happy environment, we can be satisfied that we are doing the right thing for the creatures in our care.
A Common Prawn 
At the end of last week the eggs of one of our male sticklebacks hatched and he appeared to be caring for them well, however, the young all seem to have disappeared over the weekend. He does appear to still be guarding the nest and there may be new set of eggs in it. Perhaps he will have better luck next time?

This small sea slug was spotted clinging to the glass of the large marine aquarium this morning, I think it is the Green Sea Slug or Elysia viridis(the colour usually depends on the type of algae that has been eaten). The Green sea slug is unusual in that it belongs to a clade - Sacoglossa - of sea slugs which are the only animals to use kleptoplasty. This is where the chloroplasts from digested algae are retained and used by the host to provide it with the products of photosynthesis - they are, at least in part, solar powered.  
Green Sea Slug

Hermit crabs are not the only animals that like to live inside disused sea-shells. 


Beth C

Friday, 16 June 2017

Sea Tank Critters Update

It has now been a few weeks since we set up our tanks here at the Islay Natural History Trust and it is nice to find that all of our creatures are settling in well. 
This Shanny is a master of camouflage. 
 


The three spined sticklebacks in the main marine aquarium are thriving in particular. The males, which are distinguishable by their red undersides, have built nests which they are now defending.
The male Stickleback guarding his nest. 

A female stickleback.


One male has begun to fan his nest, a behaviour which helps to circulate water over the eggs and keeps them well oxygenated. He is also particularly fierce in the defence of his nest, and appears to have claimed the whole end of the tank as his own.

video


The hermit crabs are now also moving into new, larger shells.
A hermit crab in the rock-pool tank has taken up residence in a dog whelk shell. 
Beth C