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James Hammond

@jamesehammond.bsky.social
314 followers 525 following 23 posts

Leverhulme Early Career Fellow @geneticscam.bsky.social | Segmentation, Robustness, Evolvability | Lepidoptera and Birds jewh.github.io

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James Hammond @jamesehammond.bsky.social · 03/09/2026
Out of context BirdGuides
Quail parked in a driveway
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James Hammond @jamesehammond.bsky.social · 07/07/2026
Never a dull trip to Portland! This Ischnoscia borreonella was definitely the stand-out moth of the weekend, a real surprise to @josscarr.bsky.social @hwitts.bsky.social and I as we failed to find Eudarcia richardsoni
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Callum Bucklow @callumbucklow.bsky.social · 18/06/2026
New preprint now available on BioRxiv ( doi.org/10.64898/202...)! Thank you to @bertaverd.bsky.social, Roger Benson and my other co-authors, Hannah Ugboma, Katharine Criswell and Mexford Mulumpwa.
doi.org
Whole body elongation drives coordinated vertebral shape evolution in Lake Malawi cichlid fishes
Understanding how anatomical structures evolve requires disentangling the roles of integration and modularity in shaping morphological variation. The vertebral column, a serially repeated and regional...
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Berta Verd @bertaverd.bsky.social · 21/04/2026
New Pre-Print Alert! Evolving initial conditions: an alternative developmental route to morphological diversity with Shannon Taylor and @jamesehammond.bsky.social www.biorxiv.org/content/10.6...
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Thomas Miller @tmbirding.bsky.social · 29/03/2026
The introduction and Part 1 of my South Africa blog are now published. Beware that this post is extremely long - so long, in fact, that I'm not sure how I'm going to find the time to keep this up for the rest of the trip tmbirding.blogspot.com/2026/03/sout... tmbirding.blogspot.com/2026/03/sout...
tmbirding.blogspot.com
South Africa Part 1 - Johannesburg to Kruger
Birding Polokwane - one of the highlights of this leg This first blog post covers the part of our trip before we arrived in Kruger. I arrive...
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Will Langdon @wlangdon12.bsky.social · 07/03/2026
Excited to see one of my PhD chapters now published! We found a trade-off between the quality of host plants and how warm they were for a declining grassland butterfly (Small Copper, Lycaena phlaeas) and looked at how this shaped their egg-laying choices: doi.org/10.1111/een....
A female Small Copper butterfly (Lycaena phlaeas) egg-laying on Common Sorrel (Rumex acetosa)Two eggs of the Small Copper butterfly (Lycaena phlaeas) on Common Sorrel (Rumex acetosa)
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Campàs Lab @campaslab.bsky.social · 28/10/2025
Really excited to present the results of a fantastic collaboration with Jesse Veenvliet @jesseveenvliet.bsky.social @mpi-cbg.de @poldresden.bsky.social 🤩 We find a unique mechanism for body axis elongation in mammals, different from other vertebrate species ➡️ www.biorxiv.org/content/10.1...
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James Hammond @jamesehammond.bsky.social · 27/09/2025
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 mineAdult Dialectica scalariella
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Virginia De Andrade @virginiar-andra.bsky.social · 11/09/2025
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!
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James Hammond @jamesehammond.bsky.social · 08/09/2025
Out now in Seminars in Cell & Dev Biol! doi.org/10.1016/j.se... With thanks to co-authors @callumbucklow.bsky.social and @bertaverd.bsky.social
doi.org
Redirecting
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Dávalos Lab @labdavalos.bsky.social · 28/08/2025
🧪🚨Ever wondered why plant leaves 🍃look the way they do? Glad to contribute to work by Jamie Malone & team on developmental bias toward simple leaves! But there’s a backstory to it 1/4 www.biorxiv.org/content/10.1...
biorxiv.org
Developmental bias explains the evolutionary trend towards simple leaf shapes
The relative influence of developmental bias and natural selection on evolutionary outcomes remains a central, unresolved question in evolutionary biology. Here, we combine large-scale phylogenetic tr...
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James Hammond @jamesehammond.bsky.social · 18/08/2025
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 sandArctosa perita on an egg tray
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James Hammond @jamesehammond.bsky.social · 25/06/2025
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 fingerArgyresthia glaucinellaStephensia brunnichella
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Development @dev-journal.bsky.social · 10/06/2025
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.
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Development @dev-journal.bsky.social · 10/06/2025
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.
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Stowers Institute @stowersinstitute.bsky.social · 04/06/2025
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
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John Wallingford @jbwallingford.bsky.social · 30/05/2025
What a fantastic essay by last year's @mblscience.bsky.social Embryology students! A perfect paean to the most wonderful science: "It's exhausting; it's exhilarating; it's Embryology." journals.biologists.com/dev/article/...
journals.biologists.com
Embryology 2024: a summer like no other
Each summer since 1893, a small group of scientists from around the world have convened at the Marine Biological Laboratory (MBL) in Woods Hole, Massachusetts, USA, to work on the most exciting model ...
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bioRxiv Evolutionary Biology @biorxiv-evobio.bsky.social · 28/05/2025
Somitic Change Drives Changes in Vertebral Regionalisation in African Cichlids Despite Strong Canalisation of Somite Number www.biorxiv.org/content/10.1101/202…
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Berta Verd @bertaverd.bsky.social · 19/05/2025
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!
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Callum Bucklow @callumbucklow.bsky.social · 16/05/2025
Excited to announce my second PhD manuscript is on bioRvix (biorxiv.org/content/10.1...). Thanks to all co-authors, including my supervisors @bertaverd.bsky.social and Roger Benson. Thread below...
biorxiv.org
African Cichlid Lake Radiations Recapitulate Riverine Axial Morphologies Through Repeated Exploration of Morphospace
African cichlids comprise more than 1800 species of freshwater fishes, with remarkable adaptive radiations in Lakes Tanganyika, Malawi, and Victoria that have given rise to extraordinary morphological...
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Review Commons @reviewcommons.org · 30/04/2025
Segmentation clock & tissue development are decoupled - explanation for evolution of flexible body plans? #EvoDevo #SegmentationClock Study from Verd Lab @bertaverd.bsky.social @oxfordmathematics.bsky.social 🆕 #preprintpeerreview @biorxivpreprint.bsky.social --> doi: doi.org/10.1101/2024...
doi.org
Modularity of the segmentation clock and morphogenesis
Vertebrates have evolved great diversity in the number of segments dividing the trunk body, however the developmental origin of the evolvability of this trait is poorly understood. The number of segme...
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Will Langdon @wlangdon12.bsky.social · 18/04/2025
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.
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James Hammond @jamesehammond.bsky.social · 24/03/2025
Latest work: Review on the evolvability of vertebral number, and the developmental processes underpinning it Written by Callum Bucklow, @bertaverd.bsky.social, and myself Check it out here: doi.org/10.32942/X2K...
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James Hammond @jamesehammond.bsky.social · 20/03/2025
LepiLED drew in thirteen Rannoch sprawler (Brachionycha nubeculosa) at Drynachan up the Findhorn valley, including some nice dark specimens. Conditions about perfect, 90 moths of 11 species for 1.5 hrs trapping
Rannoch sprawler / Brachionycha nubeculosaRannoch sprawler / Brachionycha nubeculosaYellow horned / Achlya flavicornis
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