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Catherine Duigan

@cduigan.bsky.social

Environmental consultant, researcher & non-fiction writer; water & nature; heritage & natural history; women in science; biographer of Dr. Kathleen Carpenter; Ireland & Wales connections; accepts commissions. https://catherineduigan.co.uk/

1,460 Followers  |  2,159 Following  |  299 Posts  |  Joined: 14.11.2024  |  2.279

Latest posts by cduigan.bsky.social on Bluesky

Ink painting of two otters as if swimming with curling bodies, playflully, one above the other

Ink painting of two otters as if swimming with curling bodies, playflully, one above the other

'Otters' in ink by Jackie Morris, artist, author who lives and works in a small cottage by the sea in Wales #WomensArt

18.08.2025 05:44 โ€” ๐Ÿ‘ 2143    ๐Ÿ” 260    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 20
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First use of chemical-free method to eradicate Japanese knotweed for Wales A Welsh Wildlife Trust is launching a pioneering trial of a new chemical-free method to eradicate Japanese knotweed, one of the UKโ€™s most damaging invasive species. North Wales Wildlife Trustโ€™s trial,...

A Welsh Wildlife Trust is launching a pioneering trial of a new chemical-free method to eradicate Japanese knotweed, one of the UKโ€™s most damaging invasive species

18.08.2025 06:40 โ€” ๐Ÿ‘ 21    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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โ€œWith their strong, short bills the turnstones probe among the wrack and turn over any stones that may be thereโ€

Writer: EL Grant Watson
Artist: CF Tunnicliffe
(What to Look for in Summer, 1960)

17.08.2025 07:07 โ€” ๐Ÿ‘ 301    ๐Ÿ” 34    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 0
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These crabs probably saved your life. Can we save theirs? The medical world relies on horseshoe crab blood in the production of vaccines and equipment. A synthetic is available, but companies have been slow to adopt it.

For decades, the biomedical industry has relied on a compound in horseshoe crab blood to protect medical equipment from contamination, saving untold human lives.

But conservationists say modern medicineโ€™s dependence on this bloodletting is upending a globe-spanning ecosystem.

16.08.2025 17:03 โ€” ๐Ÿ‘ 4571    ๐Ÿ” 1394    ๐Ÿ’ฌ 131    ๐Ÿ“Œ 67

A shared heritage - Lawrence of Arabia, illegitimate son of Sir Thomas Chapman, an Anglo-Irish landowner #Wetmeath #Ireland and Sarah Lawrence (nรฉe Junner), a governess in the employ of Chapman. #Ireland #Wales #Empire #IrelandWales

en.m.wikipedia.org/wiki/T._E._L...

16.08.2025 18:21 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Occasion of Welsh language cultural festival โ€˜dramatic and emotionalโ€™ To get a sense of the scale of this event, imagine a Gaeltacht concoction of Aosdรกna, Electric Picnic and the National Ploughing Championships

Edrych, Fรฉach, Look - "Dramatic and emotional" is @irishtimes.com perspective on #Eisteddfod #Steddfod2025 #Wrexham #Wrecsam #Cymru #Cymraeg #Wales #Ireland #language #gaeilge #Irish #heritage #culture
@eisteddfod.cymru

www.irishtimes.com/world/uk/202...

16.08.2025 17:09 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Ladies of Llangollen's 'symbol of love' cutlery goes to auction The couple would dress in top hats and ride horses through the countryside in the 18th Century.

A shared heritage - cutlery owned by the Ladies of #Llangollen for sale #Ireland #Wales #heritage #diversity
www.bbc.co.uk/news/article...

15.08.2025 13:19 โ€” ๐Ÿ‘ 9    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Historic โ€˜Ladies of Llangollenโ€™ silverware going under theย hammer Historic silverware directly from the table of the notorious โ€˜Ladies of Llangollenโ€™, will go under the hammer later this month. Lady Eleanor Butler and Sarah Ponsonby captivated Regency-era Britain with their lifelong partnership, defying social conventions and sparking intrigue across the country. Their story, which inspired the acclaimed 2019 BBC series Gentleman Jack, attracted the attention of cultural luminaries including Lord Byron, Percy Bysshe Shelley, the Duke of Wellington, Josiah Wedgwood, and William Wordsworth, who famously penned a sonnet in their honour. Aย  23-piece harlequin silver cutlery set, complete with ten additional pieces and bearing the initials of both women, will go under the hammer at the Cheffins Jewellery, Silver & Watches Sale on August, 21.

Historic โ€˜Ladies of Llangollenโ€™ silverware going under the hammer

13.08.2025 05:00 โ€” ๐Ÿ‘ 1    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Shallow freshwater lochan on north side of Ronas Hill (Shetland) with dramatic background of additional lochs; coastal cliffs and sea; ecologist wearing yellow jumper collecting plankton sample

Shallow freshwater lochan on north side of Ronas Hill (Shetland) with dramatic background of additional lochs; coastal cliffs and sea; ecologist wearing yellow jumper collecting plankton sample

#Scotland owns a piece of my heart - that wistful feeling of looking at 1991 fieldwork images taken during a successful search for #Eurycercus glacialis on #Shetland - funded by @britishecologicalsociety.org small project grant #FridayFlashback #envhist #limnology #Cladocera #zoology

15.08.2025 09:45 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

This is a view of the Vale of Clwyd from the nature reserve.

15.08.2025 09:27 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Dam and penstocks largely constructed; turbine building under construction. Image by #Siemens-Schuckert (Gottschalk Collection, UL; on display in Glucksman Library, UL; photographed by MO'C, 205-07-04)

Dam and penstocks largely constructed; turbine building under construction. Image by #Siemens-Schuckert (Gottschalk Collection, UL; on display in Glucksman Library, UL; photographed by MO'C, 205-07-04)

Collage of photos by #Siemens-Schuckert showing construction work underway at Ardnacrusha (Gottschalk Collection, UL; on display in Glucksman Library, UL; photographed by MO'C, 205-07-04)

Collage of photos by #Siemens-Schuckert showing construction work underway at Ardnacrusha (Gottschalk Collection, UL; on display in Glucksman Library, UL; photographed by MO'C, 205-07-04)

From ESB archive relating to early Ardnacrusha and promotion of the use of electricity in all aspects of life and especially in the house. (source:  ESB archive as on display for CIGS conference in Glucksman Library, UL; photographed by MO'C, 205-07-04)

From ESB archive relating to early Ardnacrusha and promotion of the use of electricity in all aspects of life and especially in the house. (source: ESB archive as on display for CIGS conference in Glucksman Library, UL; photographed by MO'C, 205-07-04)

Thomas McLaughlin (ESB; former student of Civil Engineering at UCG (University of Galway) and Professor Frank Sharman Rishworth, Prof of Civil Engineering, UCG 1910-1946; 1925-1930: seconded to be the Chief Engineer on the Shannon Scheme; oversaw this major engineering project by Siemens-Schuckert on behalf of the Irish government. Source:  ESB archive as on display for CIGS conference in Glucksman Library, UL; photographed by MO'C, 205-07-04

Thomas McLaughlin (ESB; former student of Civil Engineering at UCG (University of Galway) and Professor Frank Sharman Rishworth, Prof of Civil Engineering, UCG 1910-1946; 1925-1930: seconded to be the Chief Engineer on the Shannon Scheme; oversaw this major engineering project by Siemens-Schuckert on behalf of the Irish government. Source: ESB archive as on display for CIGS conference in Glucksman Library, UL; photographed by MO'C, 205-07-04

Archival material relating to the #Ardnacrusha hydro-electric station on display at the #CIGS conference #UL yesterday, featuring photos by #Siemens-Schuckert taken during construction and #ESB archival material relating to promotion of project (sources: #GlucksmanLibrary, #UL; and #ESB #archive)

05.07.2025 13:20 โ€” ๐Ÿ‘ 5    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Original penstocks constructed by #Siemens-Schuckert (Berlin) that deliver Shannon waters to the turbines at Ardnacrusha (photo: M. O'Connell, 2025-07-04)

Original penstocks constructed by #Siemens-Schuckert (Berlin) that deliver Shannon waters to the turbines at Ardnacrusha (photo: M. O'Connell, 2025-07-04)

Original turbine casings constructed by #Siemens-Schuckert in original turbine building at Ardnacrusha. The turbines are still delivering 'green' electicity to the Irish electricity grid thanks to careful maintenance by the ESB (Electricity Supply Board) since the turbines were initially commissioned in 1929 (photo: M. O'Connell, 2025-07-04)

Original turbine casings constructed by #Siemens-Schuckert in original turbine building at Ardnacrusha. The turbines are still delivering 'green' electicity to the Irish electricity grid thanks to careful maintenance by the ESB (Electricity Supply Board) since the turbines were initially commissioned in 1929 (photo: M. O'Connell, 2025-07-04)

Original machinery constructed by #Siemens-Schuckert to service the turbines in the turbine structure at Ardnacrusha. The machinery is still operational almost 100 years on (photo: M. O'Connell, 2025-07-04)

Original machinery constructed by #Siemens-Schuckert to service the turbines in the turbine structure at Ardnacrusha. The machinery is still operational almost 100 years on (photo: M. O'Connell, 2025-07-04)

A turbine (casing removed) undergoing maintenance by the ESB in the original turbine building at Ardnacrusha (photo: M. O'Connell, 2025-07-04)

A turbine (casing removed) undergoing maintenance by the ESB in the original turbine building at Ardnacrusha (photo: M. O'Connell, 2025-07-04)

100 y ago construction of hydro-electric power station commenced at #Ardnacrusha on river #Shannon; major engineering feat by #Siemens-Schuckert & #ESB. First electricity generated in 1929 & still going strong! Conference in #UniversityOfLimerick organised by #CIGS recalled this landmark project

05.07.2025 13:20 โ€” ๐Ÿ‘ 4    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Below dramatic dark clouds filtering sunshine over patchwork of fields and trees.

Below dramatic dark clouds filtering sunshine over patchwork of fields and trees.

Y Graig Nature Reserve @northwaleswt.bsky.social - A dramatic Vale of #Clwyd panorama with the welcome embrace of a cool shower of rain coming in from the sea #heatwave #Wales #nature #landscape #conservation #envhist #walking
www.northwaleswildlifetrust.org.uk/nature-reser...

14.08.2025 17:58 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

"Incidentally, although women have always played a major role in natural history, only 8% of birds named after people are named after women." #womeninscience #envhist #museums #naturalhistory

14.08.2025 07:57 โ€” ๐Ÿ‘ 21    ๐Ÿ” 8    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Weโ€™re delighted to announce Gwneud Traciau (Making Tracks) an exciting new project, based in #Dolgarrog, in the heart of the #ConwyValley. The village is well known for its industrial past and the 1925 Eigiau Dam disaster.

Come and find out more
3pm - 7.30pm Thur 27/08
Dolgarrog Community Centre

13.08.2025 16:29 โ€” ๐Ÿ‘ 8    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Painting looking up at the head and shoulders of a white woman under the surface of cool turquoise water with eyes closed and bubles coming from her nose as she resurfaces

Painting looking up at the head and shoulders of a white woman under the surface of cool turquoise water with eyes closed and bubles coming from her nose as she resurfaces

US painter Samantha French, Breathing at the surface, 2010 #WomensArt
Stay cool people! ๐Ÿ’ฆ #Heatwave

13.08.2025 14:03 โ€” ๐Ÿ‘ 1435    ๐Ÿ” 185    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 13
A pair of puffin against the green coastal backdrop of Skomer Island, Pembrokeshire, Wales copyright W L Davies/iStock

A pair of puffin against the green coastal backdrop of Skomer Island, Pembrokeshire, Wales copyright W L Davies/iStock

๐Ÿšจ Weโ€™re hiring!

Join JNCC as our Science & Policy Liaison Officer for Wales ๐ŸŒฟ

Work with Welsh Gov & โ€ช@natreswales.bsky.socialโ€ฌ to shape nature policy with science at its heart ๐Ÿ’š

Apply now ๐Ÿ‘‰ bit.ly/JNCCjob-202539

Applications close 31 August 2025

#ConservationCareers #PolicyAndScience

13.08.2025 10:12 โ€” ๐Ÿ‘ 6    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Officially out next week and, as I have just learned - 35% off with the code BB135 from @boydellandbrewer.bsky.social!

11.08.2025 11:10 โ€” ๐Ÿ‘ 26    ๐Ÿ” 7    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 1
Tree in front of lake and mountains, with lots of people on the water.

Tree in front of lake and mountains, with lots of people on the water.

Scorchio! #Eryri - The not so "Lonely Tree" in #LlynPadarn #summertime #wildswimming #Wales

12.08.2025 17:07 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Historic book plate showing beached sperm whale on seashore with human figures holding harpoons; ice pinnacles in background; flocks of birds. From Johnson's Household Book of Nature 1880

Historic book plate showing beached sperm whale on seashore with human figures holding harpoons; ice pinnacles in background; flocks of birds. From Johnson's Household Book of Nature 1880

"the eternal whale will still survive, and rearing upon the topmost crest of the equatorial flood, spout his frothed defiance to the skies."
#MobyDick #MelvilleMonday #booksky #whales #envhist

11.08.2025 08:27 โ€” ๐Ÿ‘ 9    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Wildlife trust considers Welsh name change for nature reserve A Welsh wildlife trust is considering changing the name of one of its nature reserves from โ€˜Spinnies Aberogwenโ€™ to โ€˜Llyn Celaneddโ€™ after information about โ€˜sacred burialsโ€™ that once took place there c...

A Welsh wildlife trust is considering changing the name of one of its nature reserves after information about 'sacred burials' that once took place there came to light

10.08.2025 08:00 โ€” ๐Ÿ‘ 13    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Print in blue and white looking up to a large bird flying in tbe sky which is in a space between the canopy of a forest

Print in blue and white looking up to a large bird flying in tbe sky which is in a space between the canopy of a forest

'Breathing Space', etching by contemporary artist and printmaker ย Janis Goodman #WomensArt

10.08.2025 05:19 โ€” ๐Ÿ‘ 1212    ๐Ÿ” 200    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 12
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Eisteddfod Wrecsam 2025 Chair: A truly local work of art Coal, football, the aqueduct, and the areaโ€™s breweries are the inspiration for the craftsmen creating the Eisteddfod Chair, which conveys โ€˜Yesterday, Today and Tomorrowโ€™ in Wrexham. Gafyn Owen and his...

Coal, football, the aqueduct, and the area's breweries are the inspiration for the craftsmen creating the Eisteddfod Chair, conveying 'Yesterday, Today and Tomorrow' in Wrecsam

09.08.2025 08:40 โ€” ๐Ÿ‘ 13    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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A week surveying satellite lakes in the Upper Lough Erne system, Ireland. The best shallow lakes left in Europe but hugely under threat from eutrophication. Like going back 100 years in the Norfolk & Suffolk Broads. It is easier to stop lakes from degrading than to restore completely degraded lakes

26.07.2025 21:05 โ€” ๐Ÿ‘ 25    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Deep clear mysterious waters of a restored farm pond. Deep down there are stoneworts & endless invertebrates that lift populations of bats & birds. All in the middle of an arable field.

30.07.2025 18:54 โ€” ๐Ÿ‘ 24    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Depuis mardi, l'Aude est touchรฉe par un trรจs violent incendie, dont le panache de fumรฉe est visible depuis l'espace. โฌ‡๏ธ

๐ŸŸ  Ces 2 prochains jours, le danger de feu reste รฉlevรฉ sur plusieurs dรฉpartements du sud de la France, selon la Mรฉtรฉo des forรชts : meteofrance.com/meteo-des-fo...

Soyez prudents !

06.08.2025 15:25 โ€” ๐Ÿ‘ 57    ๐Ÿ” 29    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

A shared heritage - Manx #Shearwaters nest in burrows on the Saltee Islands, Wexford, #Ireland, and the Pembrokeshire Islands #Wales
#IrishSea #WelshBirding #Skomer #ornithology #nature #wildlife

06.08.2025 15:13 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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A Crown for Wrexham โ€“ The 2025 National Eisteddfod A Crown for Wrexham โ€“ The 2025 National Eisteddfod

#Geology at the heart of creativity and #culture in Wales - click through to see the #Eisteddfod Crown inspired by the ancient #plant #fossils discovered at #Brymbo #Wales #Wrecsam #Wrexham #heritage #botany #Steddfod2025 #Cymru #Cymraeg #palaeobotany #envhist
neilrayment.co.uk/pages/nation...

05.08.2025 12:19 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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One million seeds to be collected off north Wales coast as part of seagrass restoration project Emily Price One million seagrass seeds will be collected off the north Wales coast as part of a pioneering project to improve marine life and tackle the global climate and nature crisis. The scheme su...

One million seagrass seeds will be collected off the north Wales coast as part of a pioneering project to improve marine life and tackle the global climate and nature crisis โœ๏ธ @emilypricejourno.bsky.social

05.08.2025 06:38 โ€” ๐Ÿ‘ 24    ๐Ÿ” 13    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Country diary: The hours pass quickly when youโ€™re brushing for trees | Jan Miller Wrexham: These plants were giants, tall and abundant enough to change the atmosphere 300m years ago โ€“ and theyโ€™re somewhere fossilised in this rock

Canfod coedwig cynhanes Brymbo.

www.theguardian.com/environment/...

31.07.2025 07:20 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@cduigan is following 20 prominent accounts