Juan Martínez
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jjmartinez83.bsky.social
Juan Martínez
@jjmartinez83.bsky.social
31 followers 65 following 11 posts
Biologist, evolution fan, and dad of three. Learning to surfskate (and to survive it). Lover of movies, books, and the survival of the fittest… mostly my balance. Science, family, and some random chaos here.
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Reposted by Juan Martínez
mammalogists.bsky.social
A craniomandibular appraisal of size and shape variation in the genus Holochilus (Cricetidae, Sigmodontinae) by means of geometric morphometrics

doi.org/10.1093/jmam...
December 1, 2025 at 6:08 PM
Reposted by Juan Martínez
evoargentina.bsky.social
📢📢📢📢📢
Ya está disponible en nuestro canal de Youtube la conferencia del Dr. Gabriel Marroig en el marco del II Congreso Latinoamericano de Evolución.

Pueden acceder aquí 👇👇
youtu.be/25syW6EpaU4
Conferencia Dr. Gabriel Marroig - II Congreso Latinoamericano de Evolución
YouTube video by SABE Argentina
youtu.be
December 12, 2025 at 3:32 PM
Reposted by Juan Martínez
science.org
Talk about an in-flight meal.

For the first time, researchers have captured rats hunting bats by grabbing them from the sky. Learn more: https://scim.ag/3Jqldmn
October 27, 2025 at 10:31 PM
Reposted by Juan Martínez
evoargentina.bsky.social
Con muchísima alegría compartimos una gran noticia! 🤩
Ya está disponible el Libro de Resúmenes del II Congreso Latinoamericano de Evolución y SMBE Regional Meeting, realizados en Tucumán en julio de 2025.

doi.org/10.30550/j.a...
October 13, 2025 at 7:10 PM
jjmartinez83.bsky.social
Me parece que no habrá Nobel para el Javo la semana que viene.
October 1, 2025 at 12:00 AM
jjmartinez83.bsky.social
LEEB–INECOA en #CLEVOL: mesa sobre dinámicas eco-evolutivas a largo plazo + avances en lapas antárticas y sapitos de panza roja. Ciencia colaborativa y datos para entender la adaptación en tiempo real. #EcoEvo #LatAmScience
September 2, 2025 at 11:42 PM
jjmartinez83.bsky.social
1 Argentina, 2 Francia y 3 para Karina
August 28, 2025 at 10:08 PM
Reposted by Juan Martínez
meaghansaurus.bsky.social
Thrilled to have a new paper out where we use 12+ years of monitoring data to document the impacts of inbreeding on fitness in eastern massasauga rattlesnakes! www.pnas.org/doi/10.1073/...
Inbreeding reduces fitness in spatially structured populations of a threatened rattlesnake | PNAS
Small and fragmented populations are at high risk of local extinction, in part because of elevated inbreeding and subsequent inbreeding depression....
www.pnas.org
August 20, 2025 at 4:12 AM
Reposted by Juan Martínez
jcbnunez.bsky.social
doi.org/10.1093/molb...
Thrilled to share our new paper in MBE! 🎉 Presenting DEST 2.0: 530 pooled Drosophila populations spanning 12 years across 6 continents. We map genomic footprints of adaptation, from pesticide resistance to seasonal changes. #PopulationGenetics #Drosophila #Genomics #Evolution
Footprints of Worldwide Adaptation in Structured Populations of Drosophila melanogaster Through the Expanded DEST 2.0 Genomic Resource
Abstract. Large-scale genomic resources can place genetic variation into an ecologically informed context. To advance our understanding of the population g
doi.org
August 19, 2025 at 1:34 AM
Reposted by Juan Martínez
evoargentina.bsky.social
Un orgullo para la SABE! 🤩
Nuestra socia Carla de Aranzamendi a bordo de la expedición de CONICET y el Schmidt Ocean Institute.
⭐🐙🦀🪸🪼
August 3, 2025 at 12:24 AM
Reposted by Juan Martínez
evolletters.bsky.social
How predictably does complex trait adaptation proceed over space and time in wild populations?
doi.org/10.1093/evle...

Now in @evolletters.bsky.social by @skylerberardi.bsky.social, @paulrschmidt.bsky.social et al.

📷: Dr. Rush Dhillon
Figure showing the experimental overview as a graphic. Remaining alt text taken from the figure caption in the paper: (A) we sampled flies from six wild orchard populations ranging from Homestead, FL, to Lancaster, MA, and established isofemale lines in the laboratory. (B) We returned to a focal orchard in Media, PA, at early- and late-season timepoints and collected flies to capture evolutionary patterns following winter and summer conditions. (C) We then seeded outdoor mesocosms (N = 9) with an outbred population originating from early-season collections in Media, PA, and sampled flies at the end of summer (mid-season) and fall (late-season) to determine if seasonal patterns are recapitulated in experimental populations controlled for migration, drift, and cryptic population structure. (D) Across each wild or experimental context, we sampled flies, established lines in the lab, completed common garden treatment to remove environmental effects, and scored females for abdominal pigmentation. We also conducted pooled DNA sequencing on additional flies sampled from each population to map genomic patterns for candidate pigmentation SNPs.
July 31, 2025 at 6:35 PM
Reposted by Juan Martínez
denisreale.bsky.social
That populations could evolve rapidly was a surprise to many. Even fewer believed that zoo animals could evolve too. We show they actualy do so in this great paper with @sauvedrew.bsky.social and Amy Chabot.
For more info ⬇️
sauvedrew.bsky.social Drew Sauve (he/him) @sauvedrew.bsky.social · Jul 30
Some recently published work with Amy Chabot and @denisreale.bsky.social out in Biological Conservation here: authors.elsevier.com/a/1lV9p_9CgT...
authors.elsevier.com
July 31, 2025 at 3:02 AM
Reposted by Juan Martínez
pdevillemereuil.bsky.social
👋

Interested in working on the evolution of genetic architecture 🧬 of complex traits using linked-read sequencing of thousands of common lizards 🦎 from a wild population and common garden experiment?

#evolution #genetics

Well, I have a PhD offer for you 👇
devillemereuil.legtux.org/erc-funded-p...
ERC-funded PhD position available – Pierre de Villemereuil
devillemereuil.legtux.org
April 8, 2025 at 3:54 PM
Reposted by Juan Martínez
evoargentina.bsky.social
📢 ¡Atención! Novedades sobre inscripciones, resúmenes, becas y conferencias 🤓
¡Ya está disponible la Tercera Circular del Congreso Latinoamericano de Evolución!
➡️ iiclevol-tuc-2025.wixsite.com/iiclevol
March 19, 2025 at 5:38 PM
Reposted by Juan Martínez
mercedesorden.bsky.social
Enorme trabajo del Mapa de la policía y de los peritos científicos Willy Pregliasco y Martín Onetto.

Si alguien tiene registros de este hecho, escribe a: registrocolectivo2024@gmail.com
March 13, 2025 at 7:20 PM
Reposted by Juan Martínez
pvcanelo.bsky.social
LA foto de este día cruel y nefasto.
La calle dice #MileiEstafador.
📸: Matías Baglietto.
#Jubilados
March 12, 2025 at 11:16 PM
jjmartinez83.bsky.social
País de garcas!!
March 12, 2025 at 11:12 PM
Reposted by Juan Martínez
smaldone.com.ar
🔴 BOMBA

"El Desastre de Las Memecoins en Argentina es Peor De lo Que Crees", el video donde @coffeezilla.bsky.social devela la trama detrás de la estafa de $LIBRA promovida por Javier Milei y sus socios... traducido al español.

Disfruten. 🍿

www.youtube.com/watch?v=ovZE...
El Desastre de Las Memecoins en Argentina es Peor De lo Que Crees
YouTube video by Coffeezilla En Español
www.youtube.com
March 2, 2025 at 8:59 PM
jjmartinez83.bsky.social
Están cagados!!
March 2, 2025 at 2:51 AM
Reposted by Juan Martínez
rquiroga777.bsky.social
#RenunciaMilei 228 mil tuits
#Manes 64 mil tuits
#HablaElPelotudo 38 mil tuits
#ElMejorPresidenteDeLaHistoria 34 mil tuits

Están corriendo también en la calle virtual 🏃🏃🏃
March 2, 2025 at 2:43 AM
jjmartinez83.bsky.social
#renunciaMilei
March 2, 2025 at 2:40 AM
Reposted by Juan Martínez
elizabethhobson.bsky.social
I am recruiting 1-2 postbacs for my parakeet sociality & cognition project! This position is for people finished with undergrad but who have not yet started grad school. Must be totally fascinated by parakeet social drama (there's a lot of it!)🪶🧪 Job ad here: ornithologyexchange.org/jobs/board/s...
Image showing the Hobson Lab logo (monk parakeets flying into a social network diagram with R code in the background), pictures of natural-colored green and gray monk parakeets, and head shots of our individually-marked birds showing their color combos and "names" (Blue-Orange-Blue has those colors on the head, cheek, and neck, and is "BOB"). Text says "Postbac position: parakeet sociality & cognition"
February 27, 2025 at 12:26 PM
Reposted by Juan Martínez
meganjthompson.bsky.social
Our common garden experiment with urban and forest great tits is out early view in Evolution! doi.org/10.1093/evol... @denisreale.bsky.social @annecharmantier.bsky.social
Visual representation of common garden procedure.
February 25, 2025 at 11:11 AM
Reposted by Juan Martínez
relenski.bsky.social
Happy 37th birthday to the LTEE!
the-ltee.org/history/
History – The Long-Term Evolution Experiment
the-ltee.org
February 24, 2025 at 3:39 PM
Reposted by Juan Martínez
evoargentina.bsky.social
¡El Congreso Latinoamericano de Evolución 2025 te espera! 🧬

📢 Abrimos convocatorias para:
✨ Simposios
✨ Mesas Redondas
✨ Cursos post-congreso

⏳ Fecha límite: 30 de marzo

📝info: iiclevol-tuc-2025.wixsite.com/iiclevol
February 18, 2025 at 4:01 PM