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Francisca Santana Sagredo

@fransantanas.bsky.social
981 followers 173 following 62 posts

Bioarchaeologist, National Geographic Explorer. Interested in isotope analysis, organic residue analysis, radiocarbon dating, human osteology and Andean archaeology.

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Francisca Santana Sagredo @fransantanas.bsky.social · 20/08/2026
Próximo jueves en Pica
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Nadine Batchelor-Hunt @nadinebh.bsky.social · 14/08/2026
I don’t think there’s ever been a clearer example of the British media bullying someone, who was so clearly vulnerable, to death so shamelessly in my lifetime for engagement and clicks And now we’ll have to watch the people that did it claim they’re shocked, and horrified Revolting
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Francisca Santana Sagredo @fransantanas.bsky.social · 08/08/2026
Entrevista en Ojo con El Norte sobre nuestro proyecto de Camélidos del Pasado y Presente financiado por National Geographic Society ojoconelnorte.cl/2026/08/08/e...
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Francisca Santana Sagredo @fransantanas.bsky.social · 03/08/2026
Vídeo realizado por Simón Jara (UNAP) sobre nuestras recientes excavaciones asociadas al Proyecto de Camélidos del Pasado y Presente, financiado por NatGeo Society. youtu.be/9pfW7aypC_M
youtu.be
Excavación Arqueológica - "Camélidos del pasado y presente " - National Geographic Society
YouTube video by Simonky Norambuena
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Francisca Santana Sagredo @fransantanas.bsky.social · 29/07/2026
Gracias al El Mercurio por la nota sobre nuestro paper en @royalsocietypublishing.org
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ICAZ @icaz-news.bsky.social · 17/07/2026
The call for abstracts for the 15th ICAZ Conference in Vancouver 2027 are now open until the 25th of August! There are 32 great sessions to choose from. Head to the website for more details - sway.cloud.microsoft/BFTVh4FAbfX6... #ICAZ #Zooarch #Vancouver2027
sway.cloud.microsoft
ICAZ 2027 Vancouver
Français
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Francisca Santana Sagredo @fransantanas.bsky.social · 14/07/2026
Thank you @unioxarchaeology.bsky.social !!
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School of Archaeology @unioxarchaeology.bsky.social · 14/07/2026
Fran's (alumna DPhil) thoughtful study of bioanthropological, radiocarbon dating & sequential analyses of teeth & hair to reconstruct an archaeological biography for one woman who lived & died in the Atacama Desert of northern Chile +500 years ago. royalsocietypublishing.org/rsos/article...
royalsocietypublishing.org
Tracking the life and last journey of an Altiplano woman from the Atacama Desert
Abstract. The unusual burial of a young woman in the Pica Oasis in the Atacama Desert (northern Chile) during the Late Intermediate Period (AD 900–1450) ra
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Francisca Santana Sagredo @fransantanas.bsky.social · 14/07/2026
Deadline for abstracts submission: tomorrow! Please submit your abstract here docs.google.com/forms/d/e/1F...
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Francisca Santana Sagredo @fransantanas.bsky.social · 13/07/2026
We had two great conferences last week, Radiocarbon and Diet and CLARa3. Thank you so much for your participation and enthusiasm. I hope we keep working together with the Radiocarbon community. And who knows…maybe in the future Chile will have a Radiocarbon facility (AMS included). ⚛️
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Rick Schulting @rschulting.bsky.social · 23/06/2026
Delighted to have been awarded an ERC Advanced Grant for 'Stocking the Past' which will investigate the balance between arable farming and stockkeeping in Neolithic and Bronze Age Britain and Ireland using a range of isotopic and genomic approaches with a great team. Should be fun!
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Rick Schulting @rschulting.bsky.social · 10/07/2026
Great to see this paper come out on the life history of a woman traveller from the #LateIntermediatePeriod in the #Atacama Desert of northern Chile. Well done @fransantanas.bsky.social and a host of colleagues! doi.org/10.1098/rsos...
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Francisca Santana Sagredo @fransantanas.bsky.social · 08/07/2026
Tracking the life and last journey of an Altiplano woman from the Atacama Desert royalsocietypublishing.org/rsos/article...
royalsocietypublishing.org
Tracking the life and last journey of an Altiplano woman from the Atacama Desert
Abstract. The unusual burial of a young woman in the Pica Oasis in the Atacama Desert (northern Chile) during the Late Intermediate Period (AD 900–1450) ra
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Francisca Santana Sagredo @fransantanas.bsky.social · 08/07/2026
Our new paper is out! Here we reconstructed the life and journey of an altiplano woman that travelled to the Atacama Desert during her last year of life, changing her diet and lifestyle: royalsocietypublishing.org/rsos/article... @ramiro-arqueo.bsky.social @profchrisharrod.bsky.social
royalsocietypublishing.org
Tracking the life and last journey of an Altiplano woman from the Atacama Desert
Abstract. The unusual burial of a young woman in the Pica Oasis in the Atacama Desert (northern Chile) during the Late Intermediate Period (AD 900–1450) ra
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Francisca Santana Sagredo @fransantanas.bsky.social · 05/05/2026
Iquique - Lunes 11 de mayo
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Jesse Wolfhagen @uncertainarch.bsky.social · 01/05/2026
Just saw a great talk by @alnorwood.bsky.social about why you should use her models for your (obviously copious) zebra and other equid d18O data! Also why you should care about enamel histology (and she's done the worrying about it for you)! And to look out for upcoming bovid models #SAA2026SFO
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Francisca Santana Sagredo @fransantanas.bsky.social · 13/04/2026
Deadline for abstract submission this Wednesday 15 of April !
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Cédric Scherer @cedricscherer.com · 12/05/2025
Excited to launch "ggplot2 [un]charted" with @yan-holtz.bsky.social! 🎉 An online course to master #ggplot2 with exercises, quizzes, and modules—and hands-on code running in your browser! Still WIP—sign up now for a limited discount: 👉 www.ggplot2-uncharted.com #rstats #DataViz #DataVisualization
The landing page of the course "ggplot2 uncharted" with the title teasing it with "Master Data Visualizations with ggplot2".
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Francisca Santana Sagredo @fransantanas.bsky.social · 05/04/2026
Hola! Les invito a seguir la cuenta IG del Proyecto NatGeo Camélidos del Pasado y Presente www.instagram.com/camelidospas...
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Francisca Santana Sagredo @fransantanas.bsky.social · 31/03/2026
We have extended the deadline for the 4th Radiocarbon and Conference, and CLARa 3 conferences. Please submit your abstracts here: app.oxfordabstracts.com/auth?redirec... @14cjournal.bsky.social @lorenabecval.bsky.social @ramiro-arqueo.bsky.social
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Ramiro Barberena @ramiro-arqueo.bsky.social · 20/03/2026
How did farming reach Uspallata? Through migration of farmers—or through cultural transmission with local hunter-gatherers? We address this through an integrative study of human remains spanning the last 2000 years, combining archaeology, isotopes and genomes.
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Ramiro Barberena @ramiro-arqueo.bsky.social · 20/03/2026
We find strong genetic continuity through time, suggesting that agriculture spread without major population movement. Instead, local communities adopted farming practices while maintaining deep regional ancestry.
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Ramiro Barberena @ramiro-arqueo.bsky.social · 20/03/2026
But we also find changes… Isotopes reveal shifts in farming intensity, including a marked intensification of maize farming between ~800 and 600 years ago. And then we found something unexpected…
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Ramiro Barberena @ramiro-arqueo.bsky.social · 20/03/2026
Strontium isotopes show that many of these individuals did not live in Uspallata and that the valley saw increased immigration. These were families with a matrilineal organization that migrated in succesive generations.
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Ramiro Barberena @ramiro-arqueo.bsky.social · 20/03/2026
Why did they leave their homes? We suggest it was a response to a long and multicausal crisis. Low populaiton size, climatic instability and the transmission of infectious diseases-tuberculosis- triggered migration along social networks. This was a resilient response.
Artist: Mauricio Alvarez
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Ramiro Barberena @ramiro-arqueo.bsky.social · 20/03/2026
We are proud to integrate an amazing team: Guaytamari and Llahué Xumec Huarpe communities from Uspallata, @institutpasteur.bsky.social @erc.europa.eu National Geographic Society, CONICET, @wennergrenorg.bsky.social @nrascovan.bsky.social @fransantanas.bsky.social
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Ramiro Barberena @ramiro-arqueo.bsky.social · 20/03/2026
1/6 Just out in @Nature ! 🌽 The history of farming in the southern Andes. In a collaboration between archaeologists, geneticists and Huarpe Indigenous communities, we investigate its origins and consequences in the Uspallata Valley. Read: www.nature.com/articles/s41...
nature.com
Local agricultural transition, crisis and migration in the Southern Andes - Nature
In the Uspallata Valley, agriculture was adopted by local populations, as evidenced by genetic continuity from earlier hunter-gatherers to farmers; maize-dependent groups from the same regional p...
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Francisca Santana Sagredo @fransantanas.bsky.social · 11/03/2026
Deadline extension until the 31 March. Submit your abstracts here: app.oxfordabstracts.com/auth?redirec... @14cjournal.bsky.social #radiocarbon #radiocarbonanddiet #radiocarbonlatinamerica
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WomenRiseUp2026 @womenriseup2026.bsky.social · 27/02/2026
DOJ #CoverUp #Epstein #EpsteinFiles #TrumpEpsteinFiles
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Francisca Santana Sagredo @fransantanas.bsky.social · 24/02/2026
soychile.cl/iquique/sost...
soychile.cl
Desarrollan proyecto sobre manejo y crianza de camélidos financiado por National Geographic en Tarapacá
La iniciativa, una de las ocho seleccionadas entre 216 postulaciones a nivel mundial, se ejecutará junto a la Red de Ganaderos de Camélidos
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Tom Higham @tommyhigham.bsky.social · 06/02/2026
Several exciting PhD opportunities here in the University of Vienna STEM-call. In our department fully funded positions in biomolecular zooarch, Pleistocene felid diversity and admixture, sedaDNA and popgen, and archsci and AMS 14C dating. Apply below now! careers.univie.ac.at/en/praedoc/s...
careers.univie.ac.at
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Francisca Santana Sagredo @fransantanas.bsky.social · 06/02/2026
Here is the link for submitting your abstracts: app.oxfordabstracts.com/auth?redirec... @14cjournal.bsky.social
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Brian Hayden @drhaydo.bsky.social · 03/02/2026
Last chance to join the best, in-person stable isotope ecology course there is - The Survivors Guide to Stable Isotope Ecology! We have a great selection of instructors, a phenomenal venue and time to discuss your work 1:1 amongst lectures and data tutorials www.exedramc.com/courses/surv...
exedramc.com
Survivor’s Guide to Stable Isotope Ecology – EXEDRA Mediterranean Center
22nd – 29th March 2026
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Francisca Santana Sagredo @fransantanas.bsky.social · 03/02/2026
We’ve been awarded a National Geography Society - Enduring Impacts Grant to study Camelids in the Atacama Desert. Following an inter and trans disciplinary approach, we will contribute supporting camelid herding in the Atacama 🦙. We are very excited, happy and thankful about the news !
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Francisca Santana Sagredo @fransantanas.bsky.social · 29/01/2026
Second Circular- Radiocarbon and Diet & CLARa (Santiago - July 2026). Deadline submission: 15th of March 2026. See you in Chile this winter ! @lorenabecval.bsky.social @ramiro-arqueo.bsky.social @14cjournal.bsky.social
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Francisca Santana Sagredo @fransantanas.bsky.social · 23/01/2026
Our new paper on human and camelid coprolites from the Atacama Desert 💩🦙 using archaeobotanical evidence www.sciencedirect.com/science/arti...
sciencedirect.com
Archaeobotanical evidence from coprolite analysis: Interactions between humans, camelids, and plants at Iluga Túmulos (Atacama Desert, Chile)
Inspired by a non-anthropocentric and relational approach, as well as by social bioarchaeology and other ontologies, this study presents the results o…
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Francisca Santana Sagredo @fransantanas.bsky.social · 14/01/2026
Nuestro trabajo en Mocha, liderado por Claudio Wande ha sido publicado esta semana en Frontiers for Environmental Archaeology. Agradecemos a la Comunidad de Mocha por recibirnos ⛰️☀️💜.
frontiersin.org
Frontiers | Two pucaras, one community and a territory: local trajectories and duality in precordillera settlements of Tarapacá, Atacama Desert, Late Intermediate and Late Periods (AD 1250–1450)
The phenomenon of pucaras has been studied from different perspectives in the South-Central Andes. These settlements, developed during the Late Intermediate ...
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Francisca Santana Sagredo @fransantanas.bsky.social · 30/10/2025
El próximo miércoles 5 de noviembre contaremos con la charla del Prof. Oliver Craig, quien viene directamente desde la Universidad de York (Inglaterra) a visitarnos. Nos hablará sobre sus investigaciones de dieta y culinaria mediante análisis biomoleculares en arqueología.
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Francisca Santana Sagredo @fransantanas.bsky.social · 08/10/2025
The Latin American Radiocarbon Conference will be held in Santiago de Chile from the 8-10 of July, 2026. The conference will be hosted by the Universidad Católica de Chile. We are looking forward to seeing you next year ! @14cjournal.bsky.social
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Radiocarbon @14cjournal.bsky.social · 03/10/2025
👋 Hello, Bluesky! We’re Radiocarbon, an international peer-reviewed journal (since 1959) dedicated to advancing radiocarbon research, from calibration and chronology to applications across archaeology, geology, environmental science, and more. We’re glad to be here. #Radiocarbon #Geochronology
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Francisca Santana Sagredo @fransantanas.bsky.social · 29/09/2025
The 4th edition of the Radiocarbon and Diet Conference will be held at Universidad Católica de Chile, Santiago-Chile on the 6th-8th of July 2026. Save the date ! #radiocarbon #diet #santiago2026
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Al Jazeera English @aljazeera.com · 05/09/2025
Downton Abbey star Hugh Bonneville interrupted a red-carpet interview with a plea to stop Israel’s military assault on Gaza City. Bonneville was speaking to ITV News ⤵️
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Francisca Santana Sagredo @fransantanas.bsky.social · 03/09/2025
Exactly !!
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Francisca Santana Sagredo @fransantanas.bsky.social · 03/09/2025
👏🏻👏🏻👏🏻
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Francisca Santana Sagredo @fransantanas.bsky.social · 27/08/2025
Sofía Minniti from Universidad Católica de Chile presenting her poster on palaeoparasitology in the Atacama Desert at #ISBA2025 @isba11.bsky.social 🪱
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Francisca Santana Sagredo @fransantanas.bsky.social · 27/08/2025
@isba11.bsky.social Sebastián Lopez from Universidad Católica de Chile, presenting isotope results on ancient crops from the Atacama Desert at #ISBA2025. This includes archaeological popcorn!🍿⚛️
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ISBA11 Turin @isba11.bsky.social · 25/08/2025
ISBA11 starts tomorrow, and we have just one question for you... are you ready for it? #ISBA11 #biomoleculararchaeology #turin #Archaeology #Italy #conference #AreYouReady @isbarchaeology.bsky.social @archaeobiomics.bsky.social
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ISBA11 Turin @isba11.bsky.social · 08/08/2025
In just under 3 weeks, we look forward to welcoming researchers from 40 countries in Turin, Italy for ISBA11 #ISBA11 #biomoleculararchaeology #Archaeology #ISBAconference #archaeologicalconference #Turin @isbarchaeology.bsky.social @archaeobiomics.bsky.social
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Francisca Santana Sagredo @fransantanas.bsky.social · 17/07/2025
Our Special Issue on Archaeological Science in Latin America, with @lorenabecval.bsky.social, is finally out !! Thanks @archaeometry.bsky.social !!
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