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Tim Holt-Wilson

@timholtwilson.bsky.social
866 followers 405 following 1.6K posts

The story of the Earth - geoconservation, museums, the poetry of things old & wild - based in East Anglia, UK. futureheritage.wordpress.com

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Tim Holt-Wilson @timholtwilson.bsky.social · 7h
Out huntin' (thrips mostly).
A young toad pauses on the base of a tree with ivy stem and fronds of pleurocarpous moss.A young toad sits up on a woodland floor, among dead leaves and living fronds of pleurocarpous moss.
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Tim Holt-Wilson @timholtwilson.bsky.social · 12h
The Late-Glacial period in Holland - a landscape studded with ice mounds 20 m high. Here is a cool landscape video - www.youtube.com/watch?v=rBmd.... Introducing a new word #pingoruins ! East Anglia is different: we have clusters of much smaller pingoid landforms here. #periglacial #Doggerland
youtube.com
Ontstaan van pingo's en pingoruïnes
YouTube video by Provincie Drenthe
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Tim Holt-Wilson @timholtwilson.bsky.social · 13h
'Government report highlights Britain’s overseas invertebrates are in great peril'. www.buglife.org.uk/blog/governm... Based on 'Update on the status of endemic and globally threatened species in the UK Overseas Territories' (Report 835 @jncc.bsky.social). #Buglife #Insects #conservation #ecology
Spiky Yellow Woodlouse - Pseudolaureola atlantica - looking like a bright yellow, bristly loo brush. Photo @ MikeThorsen
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British Dragonfly Society @britishdragonflies.bsky.social · 09/03/2026
A new report from wildlife charity Buglife reveals that pesticides from common flea and tick treatments are now widespread in rivers across Britain and may be contributing to major declines in freshwater invertebrates bit.ly/4b1Pu50
bit.ly
Buglife News: Love Your Pet, Not Pesticides: New Report Warns of Flea and Tick Treatment Threat to Rivers
Read more of our latest news related to invertebrates, insects and bugs.
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Rachel Deering @racheldeering.bsky.social · 14h
Morning. 🖼️ Tunnicliffe, What To Look For In Autumn, 1960.
Autumnal forest floor scene of leaves, red squirrel, fungi, nuts, jay in flight in distance and thrush, falling leaves, illustration.
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Geological Society of Norfolk @geolsocnorfolk.bsky.social · 28/09/2026
Pitted #fossil bone frags are common on #Suffolk UK beaches with #Pliocene Red Crag debris. Phosphorite nodules from the basal Crag are similarly pitted. Hypothesis: bioerosion by #siboglinid worms munching phosphate-rich substrates. Any thoughts? @thepalass.bsky.social @coastalpaleo.bsky.social
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Geological Society of Norfolk @geolsocnorfolk.bsky.social · 28/09/2026
The caput femoris ball of a fossil mammoth femur picked from the Waveney valley gravels today. Almost certainly Mammuthus meridionalis originating in the Crag, a near-shore marine deposit of Plio-Pleistocene age. Picture a dead animal floating out to sea. Hard bits remain, rolled around by tides.
Someone is holding the half ball-shaped head of a mammoth femur covered with sand.The reverse side of a mammoth femoral head held by someone in a fluorescent vest. A heap of sand and gravel is visible in the background.A close up view of the cellular structure of the bone in the femoral head.
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Mr and Mrs Trellis @thenorfolkcoast.bsky.social · 28/09/2026
Moths Matter - Let's give them their moment. Will you help create a Red List for Britain’s macro-moths, give these overlooked species the recognition they deserve & help open doors to funding opportunities & inclusion in nature recovery projects? www.crowdfunder.co.uk/p/moths-matter
crowdfunder.co.uk
Moths Matter - Let's give them their moment
Will you help create a Red List for Britain’s macro-moths and give these overlooked species the recognition they deserve?
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Lyme Disease UK @lymediseaseuk.bsky.social · 27/09/2026
If you’re a GP or healthcare professional, take the RCGP Lyme Disease course today and make sure you’re equipped to recognise, diagnose and manage Lyme disease in your patients. 👉 Find out more and access the course: lymediseaseuk.com/rcgp/ #LymeDisease #LymeDiseaseAwareness
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Tim Holt-Wilson @timholtwilson.bsky.social · 27/09/2026
Now that is an architectural gem!
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Chaucer Doth Tweet @levostregc.bsky.social · 26/09/2026
A.I. and corporate lingo are dragging language ynto drugged realmes of vague, airy, plastic nothingnesse: glitz and hyperbole wythout meaning. Language must have fur and clawes, make the floorboardes creake and leave wet dirtye footprintes. Wordes are rayne and fyre and stone. Wielde them. Save us.
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Tim Holt-Wilson @timholtwilson.bsky.social · 26/09/2026
Black, sooty-looking patches on Sycamore bark. Zooming down 40x under the microscope I see lineated, bundled structures. I assume a sooty mould fungus, perhaps feeding on honeydew fallout. Any thoughts? @ians4ad.bsky.social @britmycolsoc.org.uk Fumago vagans?
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DipteristsForum @dipteristsforum.bsky.social · 24/09/2026
Fly Research & Conservation Virtual Symposium 21 Oct 2026 | 10:00 - 13:00 | Tickets £1 - £30 www.eventbrite.co.uk/e/1981718540... Featuring the brilliant minds of: @flygirlnhm.bsky.social Erica McAlister @denisewawman.bsky.social Denise Wawman Ian McGowan Meghan Barrett @biologicalrecording.co.uk
eventbrite.co.uk
Fly Research and Conservation Virtual Symposium
Join us during Insect Week to explore some of the latest research and conservation projects about true flies (Diptera).
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Bob Lynn @boblynn.bsky.social · 03/11/2025
Ellen Hutchins: The Botanist Who Catalogued an Island from Her Sickbed voxmeditantis.com/2025/11/03/e... #WomenInSTEM #STEM #Cryptogams #Bryology #Phycology
voxmeditantis.com
Ellen Hutchins: The Botanist Who Catalogued an Island from Her Sickbed
Ireland’s first female botanist speaks from beyond the archive. Ellen Hutchins discovered twenty species whilst bedridden, created watercolours so precise they settled centuries-old debates a…
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Graham Appleton @wadertales.bsky.social · 24/09/2026
Tracking Whimbrels across the globe. Amazing insights that can help to target conservation action. BLOG wadertales.wordpress.com/2026/09/22/w... PAPER onlinelibrary.wiley.com/doi/10.1111/... #Conservation
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James Emerson @norwichbirder.bsky.social · 23/09/2026
As with Firebugs, it seems from online reports that it is a good year for Southern Green Shieldbug. Has anyone found any in Norfolk yet this year (there have been a couple of records in the past)?
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DipteristsForum @dipteristsforum.bsky.social · 23/09/2026
Diary Date - 2027 Dipterist Forum spring identification workshop will be on... Dolichopodidae! This hugely popular annual event will run 12th -14th March with tutors Martin Drake (author of the new RES Dolichopodidae Handbook) and Dave Brice (DF training officer). dipterists.org.uk/events/dipte...
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Tim Holt-Wilson @timholtwilson.bsky.social · 23/09/2026
'Recording for nature recovery - how biological recording will benefit wildlife in crisis'. A joint conference @norfolknats.bsky.social @suffolk-nats1929.bsky.social at Diss, Norfolk, Sat Oct 10th Oct. What should bio recording look like in the future? Booking via sns.org.uk. Please share.
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Matt Henderson @matthen.com · 16/09/2026
Trying to forecast the future on a Galton board
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womensartbluesky.bsky.social @womensartbluesky.bsky.social · 22/09/2026
'Poppy' c.1852 by Anna Atkins, UK pioneer in botany and photography whose photographs created by cyanotype process were among the first ever to be published in a book #WomensArt
Image of a white poppy plant against a blue background
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Bylines Network @bylinesnetwork.co.uk · 21/09/2026
Britain needs homes and infrastructure – but the planning system too often gets in the way. Could a radically different approach clear the blockages and get development moving? @eastangliabylines.co.uk
eastangliabylines.co.uk
Is this how to clear the blockages? Transforming our planning system Is this how to clear planning blockages
The government is undertaking a massive rewrite of our planning system. Is their diagnosis right? Will the remedy work? The government is undertaking a massive rewrite of our planning system. Is their...
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South-East London for Europe (Selfe) @selfe.bsky.social · 21/09/2026
Fantastic news Latest records show that #RNLI donations have increased by 5000% over the past couple of weeks after far-right backlash. The RNLI is on track to record its highest annual fundraising total in its almost 200-year history. Donate here rnli.org/support-us/g...
rnli.org
Donate to the RNLI and help save lives at sea
Your donations really make a difference. We depend on your generosity to educate people to stay safe and prevent tragedies on and offshore. Donate here.
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Tim Holt-Wilson @timholtwilson.bsky.social · 21/09/2026
The Gipping valley has a deep peat sequence awaiting palaeo-environmental research. If you jump on this land at Creeting St Mary it wobbles. Subsurface, poss a deep chalk solution basin like nearby Bosmere. @simon-blockley.bsky.social @amywalsh.bsky.social NB just up the valley in 1846... 🧵
View of level pasture land dotted with reeds and thistles, part of the floodplain of the River Gipping at Creeting St Mary.  There is woodland in the distance.
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Tim Holt-Wilson @timholtwilson.bsky.social · 21/09/2026
Osmia rufa have taken over my work zone: neatly blocking electric plug socket holes in two cable reels in the garden shed. Power tools fall silent. Grubs pupate. Time ticks Spring-wards ... www.inaturalist.org/taxa/124164-... #insects #suffolk #bees #hymenoptera @suffolk-nats1929.bsky.social
The black centre of a blue plastic cable reel equipped with four electric plug sockets. There are 12 holes for the plugs' teeth of which two have been blocked with pale brown mud by Red Mason Bee nesting activity. There will be hibernating pupae inside. Only two plug sockets remains usable without destroying bee nests.The black centre of a red plastic cable reel equipped with four electric plug sockets. There are 12 holes for the plugs' teeth of which three have been blocked with pale brown mud by Red Mason Bee nesting activity. There will be hibernating pupae inside. Only one plug socket remains usable without destroying bee nests.Close-up view of two plug socket holes filled with pale yellow mud by Red Mason Bees.
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Tim Holt-Wilson @timholtwilson.bsky.social · 20/09/2026
Old sandpit habitat in the Gipping valley explored @suffolk-nats1929.bsky.social today. Plants, spiders, fungi, bees; also lichen species & diversity very engagingly presented @aspenecology.com.
A loose group of people on the floor of a disused sand quarry, with a large heap of former quarry spoil and trees in the background. A large clump of grey foliose 'reindeer moss' lichen Cladonia rangiformis. It is being held between someone's cupped hands.Lichenologist Anthony Speca sitting in partial shade on a steep sandy bank. There are trees and blue sky behind. A sparsely vegetated sward dotted with small heaps of ochre-brown soil made by solitary wasps excavating breeding holes.
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Norfolk Ponds Project @norfolkponds.bsky.social · 19/09/2026
Going down!!! We started our new "Coast Ghosts Pilot" project today funded by @ournorfolkcoast.bsky.social. This coastal #ghostpond was filled in during the 1980s & we had to dig down 2.8 m to find it below all sorts of infill. Norfolk nearly has 1 more pond back! @timholtwilson.bsky.social
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Tim Holt-Wilson @timholtwilson.bsky.social · 19/09/2026
The pond here hasn't recovered from the drought but - OMG - it is full of food!! It is carpeted with a dense crop of Rorippa palustris (Marsh Yellow-cress) which tastes like a kind of spinach when boiled, and is crisp & peppery when shredded in a salad. Last year was nothing but Lemna. #FoodForFree
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Tim Holt-Wilson @timholtwilson.bsky.social · 19/09/2026
"Accusations of shifting baseline syndrome rely on judgements of degradation, whilst judgements of degradation depend on the establishment of a baseline. So where do baselines come from?" An important 🤔 philo discussion about #normality here. 🧵 philsci-archive.pitt.edu/31078/1/PreP...
A small field of rough grassland next to a trunk road, with a row of about 10 heaps of yellowish, stony clay lying across it. An environmental baseline is about to be altered.
A large excavated 'ghost pond' site in a field, showing a shallow depression lined with dark brown, organic-rich sediment. There is a group of three people standing on the lip of the depression on the right of the view, with the trees of a wood behind them. A new environmental baseline has been set, ready for monitoring ecological restoration.
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PhilSci-Archive @philsci-archive.bsky.social · 18/09/2026
New on the Archive: Jones, Elis (2026) The Problem of Baselining. [Preprint] philsci-archive.pitt.edu/31078
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Roots @roots.stefanbohacek.online.ap.brid.gy · 18/09/2026
Ulmus glabra (Wych Elm). images.wur.nl/digital/collection/co… en.wikipedia.org/wiki/Ulmus_glabra #plants #roots #illustration
A drawing of a plant's root system from the linked website.

- plant height: 810 centimeters / 318.9 inches
- root depth: 159 centimeters / 62.6 inches
- root system diameter: 1545 centimeters / 608.3 inches
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East Anglia Bylines @eastangliabylines.co.uk · 18/09/2026
Are solar farms really “stealing” Britain’s farmland? Solar farms occupy less than 1% of agricultural land – less than golf courses or airports. But the debate gets more complicated when the land is some of the UK’s best & most productive. What is the reality in the East? Stephen McNair reports
eastangliabylines.co.uk
Are solar farms really stealing the food from our mouths?
Although there are many reasons to develop solar energy, plans regularly attract protests, especially about the use of farmland. What is the reality?
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Mr and Mrs Trellis @thenorfolkcoast.bsky.social · 14/09/2026
Sometimes called the Sputnik Gall Wasp, the cynipid Wasp, Diplolepis nervosa causes spiked galls. Seen here on Dogrose in our native hedging....
Sometimes called the Sputnik Gall Wasp, the cynipid Wasp,Diplolepis nervosa, causes spiked galls. Four are sen here on the underside of a green Dogrose leaf in our native hedging. The galls are of different colours ranging from small, bright greeny-yellow to larger brown, well formed spikey spheres. Each gall is  a hollow, fleshy nursery chamber for a small white grub, the larva of the Diplolepis nervosa gall wasp, which feeds on the chamber wall. The galls detach from the leaves before leaf fall and will lie in the leaf litter until the grub pupates and emerges as the small adult wasp, only about 4 mm long in the springtime.
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Tim Holt-Wilson @timholtwilson.bsky.social · 17/09/2026
Vole is an anagram of Love. I found a Clethrionymus love-nest under an upturned bucket this afternoon; reminding me that it is not just MY garden.
A rounded nest made of dried grass leaves resting on bare earth. It reminds me of a miniature Robin's nest. There are green leaves of Ground Ivy, White Clover and Creeping Cinquefoil growing nearby.
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Tim Holt-Wilson @timholtwilson.bsky.social · 17/09/2026
Studies in Scarlet
Scarlet berries of White Bryony on a rusty old chain-link fence.The varied scarlet, pink and orange surface of a Cox's Orange Pippin on the tree.Scarlet berries of Holly on the tree.Scarlet hips of Dog Rose on the tree.
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Nicolas Hénin @nicolashenin.net · 17/09/2026
Nice campaign by the Norwegian Consumer Council about the declining lifespan of products. Enjoy!
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Tim Holt-Wilson @timholtwilson.bsky.social · 17/09/2026
How can I post .mp4 videos alongside .jpg photos @bsky.app? Google suggests there should be an icon in the toolbar next to the image icon. There isn't one.
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Tim Holt-Wilson @timholtwilson.bsky.social · 15/09/2026
@robyaxley.bsky.social
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Suffolk Naturalists’ Society @suffolk-nats1929.bsky.social · 28/08/2026
SNS and NNNS JOINT CONFERENCE 2026 Saturday, 10th October, Diss Corn Hall. Recording for Nature Recovery – how biological recording will benefit wildlife in crisis Please see link for details and booking. Non-member tickets available from 1st September sns.org.uk/sns-meetings...
sns.org.uk
SNS meetings and events – Suffolk Naturalists' Society
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Edmonds Scanner @edmondsscanner.bsky.social · 15/09/2026
Your daily affirmation: It's good to let off a little steam sometimes. It's up to you to decide if you're a charming little teapot, a thundering locomotive, or a ground shaking geyser.
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Lin Hawthorne @haggewoods.bsky.social · 12/09/2026
Should you wish to indulge your love of beetles (and why wouldn’t you) this brilliant and scholarly website will certainly help. It’s a work of art by a human. www.rosspiper.net/2020/01/10/s...
rosspiper.net
Saproxylic beetles - Dr. Ross Piper
This is an intro and visual guide to the extraordinary diversity of beetle species associated with dead and decaying wood in the UK. Numbering some 650 species, this habitat supports the greatest dive...
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Suffolk Biodiversity Information Service @suffolkbis.bsky.social · 12/09/2026
🌿 19 Sep || Suffolk Wildlife Trust: Understanding and Appreciating Lichens Full Day Workshop. >>> www.suffolkwildlifetrust.org/events/2026-...
suffolkwildlifetrust.org
Discovering the Secret World of Lichens introductory workshop | Suffolk Wildlife Trust
Join Anthony Speca as he reveals the little-known yet fascinating world of lichens.
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Anthony Speca | Aspen Ecology @aspenecology.com · 06/09/2026
Note that C pelvetiae (below) is found on P canaliculata #seaweed fronds only, not fertile receptacles. Don't confuse with Mycophyscias ascophylli: 'inverted' or 'semi-' #lichen in which #alga provides both nourishment and structure, and #fungus lives within. That's found on receptacles, not fronds!
Mycophyscias ascophylli : Scotland : VC97 West Inverness-shire : NM 6589 Traigh : July 2026 : On receptacle of Pelvetia canaliculata
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Pete M 🌳 @pete-m.bsky.social · 12/09/2026
You often hear that the Welsh uplands are naturally treeless — too high, too wet, too exposed — and that the evidence for it is upland tree cover declining from the late Mesolithic, before farming even arrived. In Eryri, the pollen record shows the opposite. 1/🧵
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Oxford Archaeology @oxfordarchaeology.bsky.social · 11/09/2026
Our offering for the #FindsFriday council this week: This 6,000-year-old elm tree leaf we uncovered during excavations in west Lancashire 🍃 Thank you to the peaty conditions that preserved it for all those millennia (and the archaeologists who carefully excavated it too)
A small elm leaf around 7cm in length include its stem
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Belgian Climate Centre @climatecentrebe.bsky.social · 11/09/2026
In Flanders, a 25-year study of 54 forests found ground beetle captures nearly halved, while species richness fell from 97 to 83. Cold-adapted species declined by up to 70%, with little increase among warm-adapted species. #Biodiversity 🔗 doi.org/10.1002/oik....
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Stuart Rogers @stu32.bsky.social · 06/09/2026
The not to be eaten #fruits of deadly nightshade Atropa belladonna, on wonderful restored heathland at Grimston Warren in Norfolk. #wildflowerhour #fruits @bsbibotany.bsky.social
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Tim Holt-Wilson @timholtwilson.bsky.social · 11/09/2026
Cringleford Neighbourhood Plan is up for consultation until Oct. 10th - www.cringlefordpc.org.uk/neighbourhoo.... Please send comments in favour! It includes 12 patches of Local Green Space e.g. 'East of Round House Way' which I wrote about a year ago - storvaxt.blogspot.com/2025/10/rewi....
An area of rough land with a rich variety of shrubs and herbs within a suburban area. Autumn colours are beginning to show.An Ivy Bee (Colletes hederae) bringing back a load of pollen to its nest hole in crumbly brown soil.Rough land with a Pyracanthus bush displaying hundreds of scarlet berries. A variety of shrubs and herbs and brambles can be seen around it. Autumn colours are beginning to show.
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East Anglia Bylines @eastangliabylines.co.uk · 11/09/2026
Open Heritage Days begin. It's open doors today 10-2pm (also 14, 16, 18 Sept) at the Greatt Yarmouth building in which author Anna Sewell was born. Sewell's novel Black Beauty was influencial in changing horse welfare.
eastangliabylines.co.uk
Black Beauty, broken and rescued: 150 years of equine welfare
The legacy of Anna Sewell’s Black Beauty reminds us: cruelty to any creature is everyone’s concern
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Thomas Paine Historical Association @thomaspaine.org · 08/09/2026
Don't forget to register for the Paine event of the season, "Rediscovering Thomas Paine: What New Documents Reveal" at the Thomas Paine Historical Association: thomaspaine.org/about/events/
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Tim Holt-Wilson @timholtwilson.bsky.social · 08/09/2026
Catton Grove Chalk Pit SSSI has had a face-lift! Thanks to its community owner group, supported by Natural England and managed by Ed at Harrison Group Environmental Ltd. A key exposure of the Catton Sponge Bed hardground. #Cretaceous #geology #geoconservation #Norfolk @geolsocnorfolk.bsky.social
A group of people in Catton Grove Chalk Pit looking at a recently cleaned-up geological exposure. There is a tiered embankment on the left covered in cascading ivy - it forms the retaining wall  of a backfilled quarry  area. The recently cleaned-up geological exposure at Catton Grove Chalk Pit, about 8 ft high and 15 ft wide. It is overlying by reddish- brown sediments of the Norwich Crag. It is overshadowed by trees.
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