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Jamie C. Weir

@jamiecweir

British evolutionary biologist and entomologist. Lepidoptera | Phenology | Adaptive Colouration | Polymorphism | History of Science | Palaeontology Twitter: @Jamie_C_Weir Website: www.jamiecweir.com

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20.11.2024
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Latest posts by Jamie C. Weir @jamiecweir

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 πŸ¦πŸ›

If I missed you at the conference, get in touch!

18.12.2025 16:38 πŸ‘ 11 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Thank you! πŸ‘

16.12.2025 11:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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!

🌳 -> πŸ› -> 🐦

16.12.2025 10:37 πŸ‘ 15 πŸ” 2 πŸ’¬ 1 πŸ“Œ 1
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Trophic generalism in the winter moth: a model species for phenological mismatch - Oecologia Climate change has the potential to disrupt phenological synchrony among interacting species that vary in their phenological sensitivity to temperature. The phenological synchrony observed between win...

You can find the whole paper available, open access, at Oecologia πŸ“„:

link.springer.com/article/10.1...

15.12.2025 16:57 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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! πŸ†

You can read more about the paper and the award below πŸ‘‡

link.springer.com/journal/442/...

15.12.2025 16:57 πŸ‘ 11 πŸ” 3 πŸ’¬ 2 πŸ“Œ 0

It's an excellent statue! An almost aristocratic air of quiet confidence, which suits its position tucked away at the back of the museum. It feels as though you're interrupting his reverie as you walk by.

15.12.2025 12:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Busy β€˜bout the Tree of Life: genome sequencing of biodiversity
Busy β€˜bout the Tree of Life: genome sequencing of biodiversity YouTube video by Linnean Society

If you missed the @linneansociety.bsky.social's annual lecture in #Edinburgh last month, you can watch it now on YouTube! πŸ‘‡

Hear Mark Blaxter (@sangerinstitute.bsky.social) give an inspiring overview of the Tree of Life Project! πŸŒ³πŸ¦‹πŸ’

www.youtube.com/watch?v=Cca7...

11.12.2025 17:39 πŸ‘ 9 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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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

28.11.2025 20:00 πŸ‘ 8 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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I was quite impressed and humbled yesterday to give a talk at the @linneansociety.bsky.social, in front of this very portrait and plate!

21.11.2025 21:37 πŸ‘ 24 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
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Busy β€˜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.

2/2. This year, we're excited to have Mark Blaxter, of the @sangerinstitute.bsky.social, talking about sequencing the genomes of all life - and the insights this can offer us in a changing world...

*Thurs 27th, 6-8pm*

Sign up now, for free, in person or online! πŸ‘‡
tinyurl.com/edin-linnsoc...

25.11.2025 11:58 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Busy β€˜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.

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! πŸ‘‡
tinyurl.com/edin-linnsoc...

... or scroll for more info πŸ§΅πŸ‘‡

25.11.2025 11:58 πŸ‘ 1 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Had a great time today presenting a poster about my PhD work πŸ› 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 🐠

20.11.2025 20:03 πŸ‘ 10 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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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.

πŸ“† Nov 27 6pm
buff.ly/nq2Gf04

18.11.2025 12:02 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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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

15.11.2025 12:01 πŸ‘ 8 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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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

β€œAndrews 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...
πŸ§ͺ 🐡 🦊

31.10.2025 10:33 πŸ‘ 8 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
G. moholi posing.
Image Credit: Jamie Weir. All rights reserved.

G. moholi posing. Image Credit: Jamie Weir. All rights reserved.

In summer, when insects are most abundant, they are a dominant part of the diet of G. moholi.

Understanding the kinds of insects eaten by bushbabies and how they find them is key for their #conservation, and for unpicking their functional role in tropical/sub-tropical forest food-webs.

🧡 8/8

28.10.2025 11:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Sound may act as an important proxy for prey size in nocturnal feeding behaviour.

Bushbaby vocalisations are usually confined to social contexts, but I also made novel observations of vocalisations associated with solo foraging πŸ—£οΈπŸ‘‡

🧡 7/8

28.10.2025 11:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Furthermore, manipulative experiments using Male Driver Ants 🐜 -- a popular prey item -- suggested that while visual movement was a key driver of prey-finding behaviour in G. moholi, sound made prey items particularly attractive and increased the incidence of targeting for feeding.

🧡 6/8

28.10.2025 11:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Previous evidence is mixed, with some reports emphasising a primary role for Lepidoptera in the diet, others suggesting Coleoptera and Orthoptera are most important (e.g. Harcourt, 1986).

I observed G. moholi easily catch Lepidoptera mid-flight, including strong fliers such as hawk-moths.

🧡 5/8

28.10.2025 11:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Observing/testing predation of different prey items, I found that:

β€’ Moths were always consumed
β€’ Insects with distasteful or noxious secretions (Shield/Stink Bugs) were avoided
β€’ Beetles were closely examined before consumption, and only some eaten

--> clear, species-level prey choice πŸ’πŸžπŸ¦‹

🧡 4/8

28.10.2025 11:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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While recording moths at a UV light trap in South Africa during Oct/Nov 2024, I was able to closely observe the Southern Lesser Bushbaby (G. moholi) foraging and predating insects drawn to the light.

The fieldwork was generously supported by @edinburgh-uni.bsky.social Davis Expedition Fund.

🧡 3/8

28.10.2025 11:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Much remains unknown about our #primate relatives.

E.g./ Though #insects are a key dietary component for many #nocturnal species, we still have little idea of:

β€’ which taxa are eaten, and why
β€’ individual/population/seasonal variation in preferences
β€’ the #sensory stimuli used to find them

🧡 2/8

28.10.2025 11:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Post image G. moholi posing. 
Image Credit: Jamie Weir. All rights reserved.

G. moholi posing. Image Credit: Jamie Weir. All rights reserved.

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 πŸ‘€πŸ‘‡

🧡 1/8

28.10.2025 11:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Excellent! When are we bringing pith helmets back to fieldwork? ⛏️

18.10.2025 00:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

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.

29.07.2025 16:33 πŸ‘ 11 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Will food chains break as seasons become more unpredictable? In variable environments, like temperate woodlands, species are not equally at risk.

Read more about my work in @uk.theconversation.com: theconversation.com/will-food-ch...

Or, have a look at our recent perspective piece in @globalchangebio.bsky.social: onlinelibrary.wiley.com/doi/10.1111/...

2/2 🧡

09.09.2025 16:21 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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! πŸŒΏπŸ›

Thanks to @eastbio.bsky.social and my supervisor @allyphillimore.bsky.social

1/2 πŸ‘‡

09.09.2025 16:21 πŸ‘ 7 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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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

20.07.2025 21:02 πŸ‘ 149 πŸ” 6 πŸ’¬ 6 πŸ“Œ 0
Is Timing Everything and How Can Spring-feeding Caterpillars Get it Right? | Jamie Weir
Is Timing Everything and How Can Spring-feeding Caterpillars Get it Right? | Jamie Weir YouTube video by Linnean Society

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...

23.06.2025 14:58 πŸ‘ 6 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Buffering and phenological mismatch: A change of perspective Climate change can shift the seasonal timing of many species, and potentially disrupt feeding interactions between species that were formally synchronized in time. We identify a variety of mechanisms...

You can find many of the key ideas discussed in my recent @globalchangebio.bsky.social paper:

'Buffering and phenological mismatch: a change of perspective'

onlinelibrary.wiley.com/doi/10.1111/...

13.06.2025 11:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0