James Hammond
@jamesehammond.bsky.social
180 followers 320 following 15 posts
DPhil at @biology.ox.ac.uk | Cichlids, Somitogenesis, and Evolvability | Lepidoptera and Birds | jewh.github.io | #embryo2024
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jamesehammond.bsky.social
Could these mines not be microtheriella? Looks like the correct shape, and there's multiple mines on the same leaf, which is common for microtheriella
jamesehammond.bsky.social
Collected leaf-mines of Dialectica scalariella on Viper's Bugloss/Echium vulgare from Freshwater Bay, Portland (VC 9) on 13th Sept - adults emerged on 25th Sept

@portlandbirdobs.bsky.social @dorsetbutterflies.bsky.social
Mine of Dialectica scalariella on Viper's Bugloss (Echium vulgare) Larva of Dialectica scalariella, exposed from its mine Adult Dialectica scalariella
Reposted by James Hammond
virginiar-andra.bsky.social
I am excited to share the first preprint from my postdoc work! We found that ligand-receptor pairs are not static and show an antagonistic spatial localization! We show ligand is important to fine tune the amplitude of Wnt oscillations ensuring robust tissue patterning! Check out the preprint!
sonnenlab.bsky.social
Preprint alert!
We combined microfluidics, proteomics, and RNA-seq to map spatiotemporal protein expression during mouse somitogenesis and found a novel regulatory strategy: dynamic antagonistic gradients fine-tune signalling strength.

doi.org/10.1101/2025...
jamesehammond.bsky.social
Haar kept moth numbers down at Findhorn dunes (VC 95) last night, with a meagre return of 15 species across two traps. However i did find a nice Portland moth / Actebia praecox resting on the heather, and an attractive Arctosa perita sought refuge (or prey) inside one of the traps
Portland moth / Actebia praecox resting on sand Arctosa perita on an egg tray
jamesehammond.bsky.social
Can't be taken beyond genus but most likely to be cagnagella with those white terminal cilia
jamesehammond.bsky.social
Great night mothing in Wytham Woods on midsummer's day - warm weather brought in 121 species including (presumed) Nemapogon ruricolella, Argyresthia glaucinella, and a very handsome Stephensia brunnichella

@tmbirding.bsky.social #mothsmatter
Nemapogon ruricolella, resting on my finger Argyresthia glaucinella Stephensia brunnichella
Reposted by James Hammond
dev-journal.bsky.social
In this Perspective, students from the 2024 Embryology Course share their experiences spending the summer at the Marine Biological Laboratory (@mblscience.bsky.social‬) in Woods Hole:
journals.biologists.com/dev/article/...
The 2024 Embryology cohort. Top row (left to right): Lucrezia Ferme, Vivek Ramalingam, Louise Dagher. Second row (left to right): Yuchuan Miao, Angelo Arrigo, Cliff Rostomily, Ekasit Sonpho, James Hammond, Jakke Neiro, Fjodor Merkuri, Paul Maier. Third row (left to right):  Tatjana Piotrowski, Marc Trani Bustos, Roy Chen, Amanda Powell, Maya Pahima, Verena Kaul, Alexandra Lion, Frederic Zimmer, Kaitlyn Abshire, Stanley Marjenberg. Bottom row (left to right): Athula Wikramanayake, Kate McCluskey, Virgínia Andrade, Arushi Gupta, Francisca Espinoza Romero, Ruth Styfhals, Chaitra Prabhakar, Erica Lin.
Reposted by James Hammond
dev-journal.bsky.social
The Company of Biologists and the Woods Hole Embryology Course

We explore the association of Development and @biologists.bsky.social‬ with the Woods Hole Embryology Course @mblscience.bsky.social‬ and hear from former students about the impact the course has had on them:
doi.org/10.1242/dev....
Images taken during the Woods Hole Embryology Course that have been promoted by Development and the Node.
Reposted by James Hammond
stowersinstitute.bsky.social
From hydra grafts to butterfly gene expression, the 2024 @mblscience.bsky.social #Embryology Course was a playground for #discovery. 🌊 @planaria1.bsky.social Lab postdoc Ekasit Sonpho co-authored a reflection in @dev-journal.bsky.social on what made this summer so transformative: bit.ly/3ZIMRQu
Reposted by James Hammond
biorxiv-evobio.bsky.social
Somitic Change Drives Changes in Vertebral Regionalisation in African Cichlids Despite Strong Canalisation of Somite Number https://www.biorxiv.org/content/10.1101/2025.05.23.655800v1
Reposted by James Hammond
bertaverd.bsky.social
Experimental embryology postdoc available in my lab at the @biology.ox.ac.uk @ox.ac.uk working on the evolution of vertebral counts. Reach out if you’re passionate about EvoDevo, enjoy lab work and microscopy and are into or could get into cichlid fishes. Deadline on the 16th June. Please share!
jamesehammond.bsky.social
I assume you reared them from larvae? What did you feed them - are you close enough to Bearberry to feed them that, or did you try them on Willow?
jamesehammond.bsky.social
Not argyrana IMO, suspect one of albuginana/suspectana, worth dissecting
jamesehammond.bsky.social
How'd you find this one? On a fencepost?
Reposted by James Hammond
wlangdon12.bsky.social
Previously only recorded once in the UK in 2018, records of Pammene juniperana have been increasing since 2022. Pleased to finally share this paper with @jamesehammond.bsky.social confirming that this lovely moth is breeding here, probably both on both wild and garden Junipers: shorturl.at/E2LrU
A male of the micro moth Pammene juniperana. A female of the micro moth Pammene juniperana. Habitat of the micro moth Pammene juniperana with wild Juniper growing on chalk downland. Larval feeding signs of the micro moth Pammene juniperana, with green Juniper berries discoloured pale blue.
jamesehammond.bsky.social
Thank you! Obviously heavily inspired by your work