Jamie C. Weir
@jamiecweir.bsky.social
British evolutionary biologist and entomologist. Lepidoptera | Phenology | Adaptive Colouration | Polymorphism | History of Science | Palaeontology
Twitter: @Jamie_C_Weir Website: www.jamiecweir.com
Twitter: @Jamie_C_Weir Website: www.jamiecweir.com
Pinned
Jamie C. Weir
@jamiecweir.bsky.social
· Apr 9
We’re thrilled to announce the recipients of our 2025 Medals and Awards. We’ll be spotlighting each of our amazing awardees from across science, conservation and the arts over the coming days. www.linnean.org/news...
Please like, share and join us in congratulating them all!
Please like, share and join us in congratulating them all!
It's an incredible honour to be awarded the John C. Marsden medal from the @linneansociety.bsky.social for my PhD research on phenology, moths... and some very hungry caterpillars 🌳🐛
Thanks to all my friends and mentors at @edinburgh-uni.bsky.social, but especially @allyphillimore.bsky.social!
Thanks to all my friends and mentors at @edinburgh-uni.bsky.social, but especially @allyphillimore.bsky.social!
Thanks to everyone who came along at #BES2025 to chat about my work on phenological synchrony with @kenandlindasmith.bsky.social and @piedflynet.bsky.social
Even for specialist species, mismatch may only matter in years where resources are scarce 🐦🐛
If I missed you at the conference, get in touch!
Even for specialist species, mismatch may only matter in years where resources are scarce 🐦🐛
If I missed you at the conference, get in touch!
If you're at the @britishecologicalsociety.org #BES2025 in Edinburgh and interested in #phenology, come and find me for a chat about how resource abundance modulates the impacts of the trophic #mismatch.
My poster is A17.21 in the Cromdale Hall, and I'll be there from 6pm this evening!
🌳 -> 🐛 -> 🐦
My poster is A17.21 in the Cromdale Hall, and I'll be there from 6pm this evening!
🌳 -> 🐛 -> 🐦
December 18, 2025 at 4:38 PM
Thanks to everyone who came along at #BES2025 to chat about my work on phenological synchrony with @kenandlindasmith.bsky.social and @piedflynet.bsky.social
Even for specialist species, mismatch may only matter in years where resources are scarce 🐦🐛
If I missed you at the conference, get in touch!
Even for specialist species, mismatch may only matter in years where resources are scarce 🐦🐛
If I missed you at the conference, get in touch!
If you're at the @britishecologicalsociety.org #BES2025 in Edinburgh and interested in #phenology, come and find me for a chat about how resource abundance modulates the impacts of the trophic #mismatch.
My poster is A17.21 in the Cromdale Hall, and I'll be there from 6pm this evening!
🌳 -> 🐛 -> 🐦
My poster is A17.21 in the Cromdale Hall, and I'll be there from 6pm this evening!
🌳 -> 🐛 -> 🐦
December 16, 2025 at 10:38 AM
If you're at the @britishecologicalsociety.org #BES2025 in Edinburgh and interested in #phenology, come and find me for a chat about how resource abundance modulates the impacts of the trophic #mismatch.
My poster is A17.21 in the Cromdale Hall, and I'll be there from 6pm this evening!
🌳 -> 🐛 -> 🐦
My poster is A17.21 in the Cromdale Hall, and I'll be there from 6pm this evening!
🌳 -> 🐛 -> 🐦
Very pleased to announce that my recent paper in Oecologia "Trophic generalism in the winter moth: a model species for phenological mismatch" won the journal's 2024 Ehleringer Prize for student research! 🏆
You can read more about the paper and the award below 👇
link.springer.com/journal/442/...
You can read more about the paper and the award below 👇
link.springer.com/journal/442/...
December 15, 2025 at 4:58 PM
Very pleased to announce that my recent paper in Oecologia "Trophic generalism in the winter moth: a model species for phenological mismatch" won the journal's 2024 Ehleringer Prize for student research! 🏆
You can read more about the paper and the award below 👇
link.springer.com/journal/442/...
You can read more about the paper and the award below 👇
link.springer.com/journal/442/...
If you missed the @linneansociety.bsky.social's annual lecture in #Edinburgh last month, you can watch it now on YouTube! 👇
Hear Mark Blaxter (@sangerinstitute.bsky.social) give an inspiring overview of the Tree of Life Project! 🌳🦋🐒
www.youtube.com/watch?v=Cca7...
Hear Mark Blaxter (@sangerinstitute.bsky.social) give an inspiring overview of the Tree of Life Project! 🌳🦋🐒
www.youtube.com/watch?v=Cca7...
Busy ‘bout the Tree of Life: genome sequencing of biodiversity
YouTube video by Linnean Society
www.youtube.com
December 11, 2025 at 5:39 PM
If you missed the @linneansociety.bsky.social's annual lecture in #Edinburgh last month, you can watch it now on YouTube! 👇
Hear Mark Blaxter (@sangerinstitute.bsky.social) give an inspiring overview of the Tree of Life Project! 🌳🦋🐒
www.youtube.com/watch?v=Cca7...
Hear Mark Blaxter (@sangerinstitute.bsky.social) give an inspiring overview of the Tree of Life Project! 🌳🦋🐒
www.youtube.com/watch?v=Cca7...
Reposted by Jamie C. Weir
Thank you to everyone who joined us in Edinburgh last night for our partnership lecture with @edinburgh-uni.bsky.social! Prof Mark Blaxter gave a brilliant talk on how genome sequencing is helping us understand and protect biodiversity. Recording will be posted soon.
@sangerinstitute.bsky.social
@sangerinstitute.bsky.social
November 28, 2025 at 8:00 PM
Thank you to everyone who joined us in Edinburgh last night for our partnership lecture with @edinburgh-uni.bsky.social! Prof Mark Blaxter gave a brilliant talk on how genome sequencing is helping us understand and protect biodiversity. Recording will be posted soon.
@sangerinstitute.bsky.social
@sangerinstitute.bsky.social
Reposted by Jamie C. Weir
I was quite impressed and humbled yesterday to give a talk at the @linneansociety.bsky.social, in front of this very portrait and plate!
November 21, 2025 at 9:37 PM
I was quite impressed and humbled yesterday to give a talk at the @linneansociety.bsky.social, in front of this very portrait and plate!
1/2. In or around #Edinburgh?... 🏰
There's still time to sign up for our annual @linneansociety.bsky.social lecture, hosted by @edinburgh-uni.bsky.social.
**Thurs 27th, 6-8pm**
Sign up now, for free, in person or online! 👇
tinyurl.com/edin-linnsoc...
... or scroll for more info 🧵👇
There's still time to sign up for our annual @linneansociety.bsky.social lecture, hosted by @edinburgh-uni.bsky.social.
**Thurs 27th, 6-8pm**
Sign up now, for free, in person or online! 👇
tinyurl.com/edin-linnsoc...
... or scroll for more info 🧵👇
Busy ‘bout the Tree of Life: genome sequencing of biodiversity
As extinction accelerates, scientists race to decode the DNA of life - unlocking secrets that could help save our planet’s biodiversity.
www.eventbrite.co.uk
November 25, 2025 at 11:58 AM
1/2. In or around #Edinburgh?... 🏰
There's still time to sign up for our annual @linneansociety.bsky.social lecture, hosted by @edinburgh-uni.bsky.social.
**Thurs 27th, 6-8pm**
Sign up now, for free, in person or online! 👇
tinyurl.com/edin-linnsoc...
... or scroll for more info 🧵👇
There's still time to sign up for our annual @linneansociety.bsky.social lecture, hosted by @edinburgh-uni.bsky.social.
**Thurs 27th, 6-8pm**
Sign up now, for free, in person or online! 👇
tinyurl.com/edin-linnsoc...
... or scroll for more info 🧵👇
Had a great time today presenting a poster about my PhD work 🐛 at the @linneansociety.bsky.social symposium on biological resilience. Some excellent talks in wonderful surroundings - so much food for thought with Darwin looking on - and all topped off with a fishy keynote @trishschulte.bsky.social 🐠
November 20, 2025 at 8:03 PM
Had a great time today presenting a poster about my PhD work 🐛 at the @linneansociety.bsky.social symposium on biological resilience. Some excellent talks in wonderful surroundings - so much food for thought with Darwin looking on - and all topped off with a fishy keynote @trishschulte.bsky.social 🐠
Reposted by Jamie C. Weir
As extinction accelerates, scientists race to decode the DNA of life - unlocking secrets that could help save our planet’s biodiversity.
Join Mark Blaxter, leader of the Sanger Institute’s Tree of Life programme, as he explains the genome sequencing of biodiversity.
📆 Nov 27 6pm
buff.ly/nq2Gf04
Join Mark Blaxter, leader of the Sanger Institute’s Tree of Life programme, as he explains the genome sequencing of biodiversity.
📆 Nov 27 6pm
buff.ly/nq2Gf04
November 18, 2025 at 12:02 PM
As extinction accelerates, scientists race to decode the DNA of life - unlocking secrets that could help save our planet’s biodiversity.
Join Mark Blaxter, leader of the Sanger Institute’s Tree of Life programme, as he explains the genome sequencing of biodiversity.
📆 Nov 27 6pm
buff.ly/nq2Gf04
Join Mark Blaxter, leader of the Sanger Institute’s Tree of Life programme, as he explains the genome sequencing of biodiversity.
📆 Nov 27 6pm
buff.ly/nq2Gf04
Reposted by Jamie C. Weir
Mammal colouration is typically drab, and iridescence virtually unheard of, except in the most unlikely place: blind, subterranean golden moles. Here, researchers quantitatively confirm iridescence in 14 mammal species: royalsocietypublishing.org/doi/10.1098/... #JRSocInterface #evolution
November 15, 2025 at 12:01 PM
Mammal colouration is typically drab, and iridescence virtually unheard of, except in the most unlikely place: blind, subterranean golden moles. Here, researchers quantitatively confirm iridescence in 14 mammal species: royalsocietypublishing.org/doi/10.1098/... #JRSocInterface #evolution
Reposted by Jamie C. Weir
“Andrews adds that researchers adapting the task to other species would need to think carefully about what constitutes strong evidence: Dogs, for instance, might consider scent to be a stronger source of evidence than visual cues.”
#scicomm
www.science.org/content/arti...
🧪 🐵 🦊
#scicomm
www.science.org/content/arti...
🧪 🐵 🦊
New evidence? No problem. Chimps can weigh conflicting clues, just like humans
Study is first to suggest our closest relatives think about their own thoughts
www.science.org
October 31, 2025 at 10:33 AM
“Andrews adds that researchers adapting the task to other species would need to think carefully about what constitutes strong evidence: Dogs, for instance, might consider scent to be a stronger source of evidence than visual cues.”
#scicomm
www.science.org/content/arti...
🧪 🐵 🦊
#scicomm
www.science.org/content/arti...
🧪 🐵 🦊
In my **new paper**, out now in Folia Primatologica, I shed light on the nocturnal feeding habits of the Southern Lesser Bushbaby (Galago moholi), documenting observations and experiments made during fieldwork in South Africa.
tinyurl.com/bushbaby-diet
...Scroll for more #bushbaby pics 👀👇
🧵 1/8
tinyurl.com/bushbaby-diet
...Scroll for more #bushbaby pics 👀👇
🧵 1/8
October 28, 2025 at 11:54 AM
In my **new paper**, out now in Folia Primatologica, I shed light on the nocturnal feeding habits of the Southern Lesser Bushbaby (Galago moholi), documenting observations and experiments made during fieldwork in South Africa.
tinyurl.com/bushbaby-diet
...Scroll for more #bushbaby pics 👀👇
🧵 1/8
tinyurl.com/bushbaby-diet
...Scroll for more #bushbaby pics 👀👇
🧵 1/8
Reposted by Jamie C. Weir
many thanks to @soerinegerlich.bsky.social for leading this study into phenological limits in Arctic communities. For me this collaboration was a real eye-opener into the potential for species to reach limits to their ability to respond plastically. Who knows what the consequences will be.
As #climatechange becomes more extreme, organisms may no longer keep track in their phenology or seasonal activity e.g flowering, swarming or egg laying. @soerinegerlich.bsky.social led our study showing this is real for highly sensitive #arctic #arthropods royalsocietypublishing.org/doi/10.1098/...
Keeping up with climate change: have Arctic arthropods reached their phenological limits? | Proceedings of the Royal Society B: Biological Sciences
Many arthropods show earlier seasonal activity with warming, but these responses cannot continue indefinitely. Identifying such phenological thresholds is crucial for understanding limits to climate tracking and species persistence, but few studies test ...
royalsocietypublishing.org
July 29, 2025 at 4:33 PM
many thanks to @soerinegerlich.bsky.social for leading this study into phenological limits in Arctic communities. For me this collaboration was a real eye-opener into the potential for species to reach limits to their ability to respond plastically. Who knows what the consequences will be.
Hot on the heels of receiving the @linneansociety.bsky.social's Marsden Medal, very pleased to announce that my PhD thesis also came in as runner up for the @royentsoc.bsky.social's Alfred Russel Wallace Award! 🌿🐛
Thanks to @eastbio.bsky.social and my supervisor @allyphillimore.bsky.social
1/2 👇
Thanks to @eastbio.bsky.social and my supervisor @allyphillimore.bsky.social
1/2 👇
September 9, 2025 at 4:21 PM
Hot on the heels of receiving the @linneansociety.bsky.social's Marsden Medal, very pleased to announce that my PhD thesis also came in as runner up for the @royentsoc.bsky.social's Alfred Russel Wallace Award! 🌿🐛
Thanks to @eastbio.bsky.social and my supervisor @allyphillimore.bsky.social
1/2 👇
Thanks to @eastbio.bsky.social and my supervisor @allyphillimore.bsky.social
1/2 👇
Reposted by Jamie C. Weir
Look who turned up in the moth trap this morning...
We've been expecting a Jersey Tiger for a while, being located just north of its current range. What stunning moths they are!
#mothsmatter #teammoth
We've been expecting a Jersey Tiger for a while, being located just north of its current range. What stunning moths they are!
#mothsmatter #teammoth
July 20, 2025 at 9:02 PM
Look who turned up in the moth trap this morning...
We've been expecting a Jersey Tiger for a while, being located just north of its current range. What stunning moths they are!
#mothsmatter #teammoth
We've been expecting a Jersey Tiger for a while, being located just north of its current range. What stunning moths they are!
#mothsmatter #teammoth
Reposted by Jamie C. Weir
3. Hear the fantastic talk from this year's John C. Marsden Medal Winner, @jamiecweir.bsky.social gave us on timing and spring-feeding caterpillars. #insectweek www.youtube.com/watch?v=E7mh...
Is Timing Everything and How Can Spring-feeding Caterpillars Get it Right? | Jamie Weir
YouTube video by Linnean Society
www.youtube.com
June 23, 2025 at 2:58 PM
3. Hear the fantastic talk from this year's John C. Marsden Medal Winner, @jamiecweir.bsky.social gave us on timing and spring-feeding caterpillars. #insectweek www.youtube.com/watch?v=E7mh...
It was a real delight to go down to Burlington House the other week, to tour the @linneansociety.bsky.social collections and receive this year's John C. Marsden medal, for the best biology PhD thesis in the UK.
It was, and remains, a tremendous honour.
Interested in my thesis? 👇
It was, and remains, a tremendous honour.
Interested in my thesis? 👇
June 13, 2025 at 11:16 AM
It was a real delight to go down to Burlington House the other week, to tour the @linneansociety.bsky.social collections and receive this year's John C. Marsden medal, for the best biology PhD thesis in the UK.
It was, and remains, a tremendous honour.
Interested in my thesis? 👇
It was, and remains, a tremendous honour.
Interested in my thesis? 👇
Employing one of my lesser-used mugs today!
Lord Palmerston not looking impressed by my work...
History enthusiasts: any thoughts on who might be the most important British prime minister of the nineteenth century?
Lord Palmerston not looking impressed by my work...
History enthusiasts: any thoughts on who might be the most important British prime minister of the nineteenth century?
May 31, 2025 at 3:55 PM
Employing one of my lesser-used mugs today!
Lord Palmerston not looking impressed by my work...
History enthusiasts: any thoughts on who might be the most important British prime minister of the nineteenth century?
Lord Palmerston not looking impressed by my work...
History enthusiasts: any thoughts on who might be the most important British prime minister of the nineteenth century?
Some highlights from the last few warm nights here in the central belt of Scotland...
A pair of puss moths, ermines, and several poplar hawks.
Poplars sit with hindwings resting *in front* of the forewings, breaking up the classic moth outline and giving them a more ragged, leaf-life appearance 🦋🌿
A pair of puss moths, ermines, and several poplar hawks.
Poplars sit with hindwings resting *in front* of the forewings, breaking up the classic moth outline and giving them a more ragged, leaf-life appearance 🦋🌿
May 15, 2025 at 10:26 AM
Some highlights from the last few warm nights here in the central belt of Scotland...
A pair of puss moths, ermines, and several poplar hawks.
Poplars sit with hindwings resting *in front* of the forewings, breaking up the classic moth outline and giving them a more ragged, leaf-life appearance 🦋🌿
A pair of puss moths, ermines, and several poplar hawks.
Poplars sit with hindwings resting *in front* of the forewings, breaking up the classic moth outline and giving them a more ragged, leaf-life appearance 🦋🌿
Although species vary in their #phenological response to #climate change, some food-chains and webs are surprisingly resilient...
On the anniversary of my @globalchangebio.bsky.social paper with @allyphillimore.bsky.social, I wanted to revisit some of the key ideas 👇
tinyurl.com/BufferCater
🧵1/6
On the anniversary of my @globalchangebio.bsky.social paper with @allyphillimore.bsky.social, I wanted to revisit some of the key ideas 👇
tinyurl.com/BufferCater
🧵1/6
May 14, 2025 at 11:11 AM
Although species vary in their #phenological response to #climate change, some food-chains and webs are surprisingly resilient...
On the anniversary of my @globalchangebio.bsky.social paper with @allyphillimore.bsky.social, I wanted to revisit some of the key ideas 👇
tinyurl.com/BufferCater
🧵1/6
On the anniversary of my @globalchangebio.bsky.social paper with @allyphillimore.bsky.social, I wanted to revisit some of the key ideas 👇
tinyurl.com/BufferCater
🧵1/6
Reposted by Jamie C. Weir
Birch twigs adorned with colourful feathers are a traditional Swedish Easter decoration, brightening up the dinner table.
Illustration by J. Terrier from 'Faune de la Senegambie' by Alphonse Trémeau de Rochebrune, 1883-1884.
www.magnoliabox.com/...
Illustration by J. Terrier from 'Faune de la Senegambie' by Alphonse Trémeau de Rochebrune, 1883-1884.
www.magnoliabox.com/...
April 20, 2025 at 9:02 AM
Birch twigs adorned with colourful feathers are a traditional Swedish Easter decoration, brightening up the dinner table.
Illustration by J. Terrier from 'Faune de la Senegambie' by Alphonse Trémeau de Rochebrune, 1883-1884.
www.magnoliabox.com/...
Illustration by J. Terrier from 'Faune de la Senegambie' by Alphonse Trémeau de Rochebrune, 1883-1884.
www.magnoliabox.com/...
It's an incredible honour to be awarded the John C. Marsden medal from the @linneansociety.bsky.social for my PhD research on phenology, moths... and some very hungry caterpillars 🌳🐛
Thanks to all my friends and mentors at @edinburgh-uni.bsky.social, but especially @allyphillimore.bsky.social!
Thanks to all my friends and mentors at @edinburgh-uni.bsky.social, but especially @allyphillimore.bsky.social!
We’re thrilled to announce the recipients of our 2025 Medals and Awards. We’ll be spotlighting each of our amazing awardees from across science, conservation and the arts over the coming days. www.linnean.org/news...
Please like, share and join us in congratulating them all!
Please like, share and join us in congratulating them all!
April 9, 2025 at 11:04 AM
It's an incredible honour to be awarded the John C. Marsden medal from the @linneansociety.bsky.social for my PhD research on phenology, moths... and some very hungry caterpillars 🌳🐛
Thanks to all my friends and mentors at @edinburgh-uni.bsky.social, but especially @allyphillimore.bsky.social!
Thanks to all my friends and mentors at @edinburgh-uni.bsky.social, but especially @allyphillimore.bsky.social!
Reposted by Jamie C. Weir
This is Macrocillix maia & he's a moth who mimics bird poo. But he's taken it to the next level, he's also mimicking flies feeding on the bird poo, right down to the shimmer of their wings!
I have wanted to see one for so long, but never thought I would! In Trus Madi entomology camp in Borneo.
1/2
I have wanted to see one for so long, but never thought I would! In Trus Madi entomology camp in Borneo.
1/2
March 9, 2025 at 7:15 PM
This is Macrocillix maia & he's a moth who mimics bird poo. But he's taken it to the next level, he's also mimicking flies feeding on the bird poo, right down to the shimmer of their wings!
I have wanted to see one for so long, but never thought I would! In Trus Madi entomology camp in Borneo.
1/2
I have wanted to see one for so long, but never thought I would! In Trus Madi entomology camp in Borneo.
1/2
Very pleased to be back at the @savebutterflies.bsky.social Scotland spring meeting in Perth, this time talking about my PhD work on #phenology, #ecology, and #trophic #mismatch.
As always, the winter #moth will be headlining... (but will be put in its place) 🦋
As always, the winter #moth will be headlining... (but will be put in its place) 🦋
March 22, 2025 at 10:46 AM
Very pleased to be back at the @savebutterflies.bsky.social Scotland spring meeting in Perth, this time talking about my PhD work on #phenology, #ecology, and #trophic #mismatch.
As always, the winter #moth will be headlining... (but will be put in its place) 🦋
As always, the winter #moth will be headlining... (but will be put in its place) 🦋