Santiago Claramunt
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sclaramunt.bsky.social
Santiago Claramunt
@sclaramunt.bsky.social
Studying the macro eco-evolutionary dynamics of birds.
https://claramuntlab.org
📣 Grad student wanted
PhD position in avian evolution, with emphasis on phylogenetics, macroevolution, Neotropical radiations, flight and dispersal.
Based at the University of New Orleans (soon to be LSU New Orleans).
Start: September 2026.
Contact me if interested.
claramuntlab.org
February 5, 2026 at 8:54 PM
Reposted by Santiago Claramunt
Usually described as “raucous” and “cacophonous,” the Brown Cacholote is an energetic South American ovenbird. The bird announces its presence by performing its long, loud series of grating notes from treetops. Listen to some duets here: birdsoftheworld.org/bow/species/brncac1
Brown Cacholote - Pseudoseisura lophotes - Birds of the World
Species accounts for all the birds of the world.
birdsoftheworld.org
February 4, 2026 at 7:50 PM
Reposted by Santiago Claramunt
Honeyguides from the Varswater Formation (Pliocene of South Africa), the oldest known fossil honeyguides: riviste.unimi.it/index.php/RI... 🪶🧪 (📷Louchart et al.)
February 2, 2026 at 8:14 PM
Reposted by Santiago Claramunt
🚨NEW PAPER OUT🚨
The anatomy of bird lower jaw bones has been understudied...until now! Here, we examine avian mandibular anatomy, answering some and raising more questions about the phylogenetic affinities of key early crown-group birds. Read on!
link.springer.com/article/10.1...
Mandibular morphology clarifies phylogenetic relationships near the origin of crown birds - BMC Ecology and Evolution
Background The phylogenetic relationships of fossil birds near the origin of the avian crown group remain debated, in part due to a limited amount of character evidence from incomplete fossils. The av...
link.springer.com
January 28, 2026 at 2:50 PM
Reposted by Santiago Claramunt
Myiarchus flycatchers ordered by size and intensity of yellow underparts. When it comes to flycatchers, differences between species tend to be very subtle. Impressions of size and color in the field can be quite subjective, but the differences are real.
January 27, 2026 at 3:37 AM
Reposted by Santiago Claramunt
Snowy Ptarmigans!
January 26, 2026 at 2:45 PM
Reposted by Santiago Claramunt
Remarkable photo illustrating (American) Woodcock visual field

macaulaylibrary.org/asset/616675...
ML616675248 - American Woodcock - Macaulay Library
Macaulay Library ML616675248; © Karim Bouzidi; Longueuil, Quebec, Canada
macaulaylibrary.org
January 26, 2026 at 5:14 PM
Reposted by Santiago Claramunt
'Sandpipers' by Julia Berman.
January 23, 2026 at 3:32 PM
Reposted by Santiago Claramunt
How did birds evolve? The answer is wilder than anyone thought www.nature.com/articles/d41...
How did birds evolve? The answer is wilder than anyone thought
Discoveries in Jurassic rocks reveal that birds were adept fliers earlier than scientists realized.
www.nature.com
January 23, 2026 at 1:53 PM
Reposted by Santiago Claramunt
Reposted by Santiago Claramunt
Birds have a thick retina devoid of blood vessels - so how do they ensure sufficient oxygen availability?
They don't - neurons rely on glycolysis, metabolizing glucose released from the pecten.

Insane new study that includes comparative data on lizards and crocs.🧪

www.nature.com/articles/s41...
Oxygen-free metabolism in the bird inner retina supported by the pecten - Nature
While the photoreceptor outer segments in the bird outer retina have access to oxygen, the inner retina operates under chronic anoxia, supported by anaerobic glycolysis in the retinal neurons.
www.nature.com
January 22, 2026 at 2:14 PM
Reposted by Santiago Claramunt
What's larger, a protein or its templating mRNA ?

> The mRNA is much larger.

⬛ 𝐀 𝐬𝐞𝐧𝐬𝐞 𝐨𝐟 𝐬𝐜𝐚𝐥𝐞 -- 𝐪𝐮𝐚𝐧𝐭𝐢𝐭𝐚𝐭𝐢𝐯𝐞 𝐢𝐧𝐭𝐮𝐢𝐭𝐢𝐨𝐧 & 𝐜𝐨𝐧𝐬𝐭𝐫𝐚𝐢𝐧𝐭𝐬 -- 𝐢𝐬 𝐚 𝐩𝐨𝐰𝐞𝐫𝐟𝐮𝐥 𝐞𝐧𝐚𝐛𝐥𝐞𝐫 𝐨𝐟 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡.

The figure shows myoglobin protein drawn to scale next to its mRNA template. The coding sequence of an mRNA ...
January 17, 2026 at 1:29 PM
Reposted by Santiago Claramunt
New halcyornithid (early close relative of parrots and passerines) Scopsoides feisti: www.schweizerbart.de/papers/njgpa... (From late last year, but I didn't get a copy of the paper until recently.) 🪶🧪 (📷Mayr)
January 13, 2026 at 2:08 PM
Reposted by Santiago Claramunt
New specimens of the nightjar-like Hassiavis: www.tandfonline.com/doi/full/10.... Some of the new anatomical information here suggests that it might have been more closely related to owlet-nightjars, swifts, and hummingbirds than to true nightjars. 🪶🧪 (📷Mayr & Richter)
January 13, 2026 at 2:23 PM
Reposted by Santiago Claramunt
The great @jembrown.bsky.social closing out #ssb2026

It was a wonderful meeting thanks to the hardwork of Jeremy and funding from @lsu.bsky.social and other sources.

Systematic biology is alive and well. Especially proud of all the Global South who attended.
January 11, 2026 at 11:04 PM
Reposted by Santiago Claramunt
Strong @lsu.bsky.social contingent at #ssb2026 - LSU alumni and current folks
January 11, 2026 at 3:20 AM
Reposted by Santiago Claramunt
“Scientific societies can support you and foster you through your whole career” - SSB President @trayc7.bsky.social opening the #ssb2026 meeting

Can’t join us today? Make sure your registration is up to date to keep up with SSB news and happenings

www.systbio.org
Society of Systematic Biologists
A membership organization for anyone interested in the science of systematic biology.
www.systbio.org
January 10, 2026 at 3:09 PM
Reposted by Santiago Claramunt
New paper out! 🐦📊

We realease AVONICHE, a global dataset with detailed information on the proportional use of 32 foraging niches, combining dietary categories with the behaviours and substrates used to access resources.

Openly access the paper and data in GEB: doi.org/10.1111/geb....
January 8, 2026 at 11:09 AM
Reposted by Santiago Claramunt
LSU Museum of Natural Sciences is hiring a postdoc! Come join our very active and supportive museum community. Applicants can work with any of the major divisions: 🐀🦜🦎🐸🐠

Review begins February 15th, please share!

lsu.wd1.myworkdayjobs.com/LSU/job/0119...
Postdoctoral Researcher
All Job Postings will close at 12:01a.m. CST (1:01a.m. EST) on the specified Closing Date (if designated). If you close the browser or exit your application prior to submitting, the application progre...
lsu.wd1.myworkdayjobs.com
January 7, 2026 at 3:19 PM
Reposted by Santiago Claramunt
NBC @neobirdconserve.bsky.social Conservation Fund supports projects to conserve threatened Neotropical birds by small grants of USD 1000–3000. Next deadline = 1 Feb. More information & application forms (English/Español/Português): neotropicalbirdingandconservation.org/conservation/ #ornithology
Conservation - Neotropical Birding and Conservation
neotropicalbirdingandconservation.org
January 6, 2026 at 11:29 AM
Reposted by Santiago Claramunt
In "Biologists Unite," Daniel Chiu Suarez provides an inside account of the rise and fall of ecosystem services, a burgeoning field of science dedicated to analyzing the many valuable “services” nature provides to humanity. Available #OpenAccess: mitpress.mit.edu/978026255338...
January 6, 2026 at 2:16 PM
Reposted by Santiago Claramunt
Very excited for this incredible lineup of talks at #SSB2026!

ssb2026.github.io/talks.html

For those giving talks, more instructions will be sent shortly.

@systbiol.bsky.social
December 17, 2025 at 4:26 PM
Some of your cells are not genetically yours — what can they tell us about life and death? www.nature.com/articles/d41...
Some of your cells are not genetically yours — what can they tell us about life and death?
A tiny population of cells that are passed across the placenta between mother and baby challenge basic tenets of human immunology.
www.nature.com
January 4, 2026 at 2:17 PM
Reposted by Santiago Claramunt
📢 NEW SPECIAL ISSUE OUT!

Excited to share a special issue I co-edited on bird–window collisions, a major yet overlooked source of bird mortality

Bringing together 8 papers, this issue advances methods, evidence, and solutions to inform bird-friendly(er) built environments

OA: tinyurl.com/yss5mvf2
December 25, 2025 at 1:49 PM
Reposted by Santiago Claramunt
How should the discipline of ecology and the community of ecologists respond to the ecological crisis? Is it time that these were put on something more akin to an emergency footing?
www.cell.com/action/showP...
December 18, 2025 at 8:59 AM