Niklas Hausmann
@niklashausmann.bsky.social
Environmental archaeologist 🏺 | Prehistory | Climate | Research group leader at the Leibniz Zentrum für Archäologie | seafront-project.com
Pinned
nikhausmann.shinyapps.io
More than five years ago I made a #shiny converter for BP to BC and 'nth millennium BC' because it's all just too confusing.
I still haven't learned, so here you go:
nikhausmann.shinyapps.io/BP_to_BC_and...
🏺 #Archaeology #Climate
I still haven't learned, so here you go:
nikhausmann.shinyapps.io/BP_to_BC_and...
🏺 #Archaeology #Climate
Reposted by Niklas Hausmann
With daily urine production of 0.6-1.8 L and life expectancy of 60 years, 1400 km3 = 30 - 100 billion people. Seems consistent with numbers that are floating about, but exponential population growth rate means small uncertainty in palaeo population size = enormous uncertainty in date of origin.
January 10, 2026 at 12:54 PM
With daily urine production of 0.6-1.8 L and life expectancy of 60 years, 1400 km3 = 30 - 100 billion people. Seems consistent with numbers that are floating about, but exponential population growth rate means small uncertainty in palaeo population size = enormous uncertainty in date of origin.
Calling all Palaeoanthropology Researchers to please check whether this "Fast Fact" in my kids' book lines up with the beginning of human origins and Palaeolithic populations
#HardScience
🏺
#HardScience
🏺
January 10, 2026 at 9:57 AM
Calling all Palaeoanthropology Researchers to please check whether this "Fast Fact" in my kids' book lines up with the beginning of human origins and Palaeolithic populations
#HardScience
🏺
#HardScience
🏺
Reposted by Niklas Hausmann
In a new study, researchers from @uab.cat claim people have been whaling for almost 5,000 years – and that the earliest evidence comes from the warm coastal waters of Brazil, not the Arctic. www.science.org/content/arti... @science.org
World’s oldest whale harpoons discovered in Brazil
Far from the icy Arctic, ancient South Americans hunted whales using whalebone tools
www.science.org
January 9, 2026 at 1:30 PM
In a new study, researchers from @uab.cat claim people have been whaling for almost 5,000 years – and that the earliest evidence comes from the warm coastal waters of Brazil, not the Arctic. www.science.org/content/arti... @science.org
Reposted by Niklas Hausmann
#EAAforDemocracy Democracy is at stake at EAA: all archaeologists should be very concerned
A Special Meeting for members will take place on Jan 9th 2026 about the dysfunctioning of the current EAA leadership. See below:
A Special Meeting for members will take place on Jan 9th 2026 about the dysfunctioning of the current EAA leadership. See below:
January 7, 2026 at 1:35 PM
#EAAforDemocracy Democracy is at stake at EAA: all archaeologists should be very concerned
A Special Meeting for members will take place on Jan 9th 2026 about the dysfunctioning of the current EAA leadership. See below:
A Special Meeting for members will take place on Jan 9th 2026 about the dysfunctioning of the current EAA leadership. See below:
Reposted by Niklas Hausmann
🚨Urgent‼️ The EAA has doxxed members who have been working to reestablish justice, democracy and accountability in the association. This is a chilling move. We must take action. ALL EAA MEMBERS OUT FOR THE SPECIAL MEETING THIS FRIDAY JAN 9TH! #EAAforDemocracy
January 7, 2026 at 4:34 PM
🚨Urgent‼️ The EAA has doxxed members who have been working to reestablish justice, democracy and accountability in the association. This is a chilling move. We must take action. ALL EAA MEMBERS OUT FOR THE SPECIAL MEETING THIS FRIDAY JAN 9TH! #EAAforDemocracy
Reposted by Niklas Hausmann
ZooMS helps to identify domesticated sheep and goat at early Neolithic sites in northern Europe onlinelibrary.wiley.com/doi/10.1002/...
The First of Their Kind—The Significance of Sheep and Goat in the Neolithization Process of Northern Central Europe
Coastal-oriented communities of the Ertebølle culture co-existed in southern Scandinavia 6000–7000 years ago in relative proximity to farming communities. Despite many years of research, it is still ...
onlinelibrary.wiley.com
January 6, 2026 at 10:36 AM
ZooMS helps to identify domesticated sheep and goat at early Neolithic sites in northern Europe onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Niklas Hausmann
a lot of people don't realize that Christmas carols and traditions are actually folk memories of suppressed pre-Christian events, namely the end of the Third Age and the Fall of Sauron.
December 24, 2025 at 10:05 PM
a lot of people don't realize that Christmas carols and traditions are actually folk memories of suppressed pre-Christian events, namely the end of the Third Age and the Fall of Sauron.
Reposted by Niklas Hausmann
The award-winning SCAPE Trust is a Registered Charity and a Company established in 2001. We work with the public on the archaeology, history and past environments of the coastal zone of Scotland.
scapetrust.org/who-we-are/
scapetrust.org/who-we-are/
December 18, 2024 at 12:04 PM
The award-winning SCAPE Trust is a Registered Charity and a Company established in 2001. We work with the public on the archaeology, history and past environments of the coastal zone of Scotland.
scapetrust.org/who-we-are/
scapetrust.org/who-we-are/
Reposted by Niklas Hausmann
🏛️ Announcing our new MSc and GradDip in Mediterranean Archaeology at UCD School of Archaeology and UCD School of Classics.
Join us in Dublin, Ireland, next academic year to take our MSc in Mediterranean Archaeology.
📝 Registration opens in January. For more details: www.ucd.ie/archaeology/...
Join us in Dublin, Ireland, next academic year to take our MSc in Mediterranean Archaeology.
📝 Registration opens in January. For more details: www.ucd.ie/archaeology/...
December 19, 2025 at 7:43 PM
🏛️ Announcing our new MSc and GradDip in Mediterranean Archaeology at UCD School of Archaeology and UCD School of Classics.
Join us in Dublin, Ireland, next academic year to take our MSc in Mediterranean Archaeology.
📝 Registration opens in January. For more details: www.ucd.ie/archaeology/...
Join us in Dublin, Ireland, next academic year to take our MSc in Mediterranean Archaeology.
📝 Registration opens in January. For more details: www.ucd.ie/archaeology/...
Reposted by Niklas Hausmann
New blog post by Matt on some of his preliminary dissertation work! “Seasonal Oyster Collection by Gullah/Geechee Communities of the American Southeast through Laser Induced Breakdown Spectroscopy (LIBS)” seafront-project.com/post/seasona...
December 17, 2025 at 4:28 PM
New blog post by Matt on some of his preliminary dissertation work! “Seasonal Oyster Collection by Gullah/Geechee Communities of the American Southeast through Laser Induced Breakdown Spectroscopy (LIBS)” seafront-project.com/post/seasona...
Reposted by Niklas Hausmann
It's the final day of @TAG2025_York 😭
It's not all bad news, though, as our collection of Contemporary #Archaeology and Theory is still FREE until the end of the month 🏺 www.cambridge.org/core/journal...
Massive thanks to all the organisers and volunteers for putting together a fantastic event!
It's not all bad news, though, as our collection of Contemporary #Archaeology and Theory is still FREE until the end of the month 🏺 www.cambridge.org/core/journal...
Massive thanks to all the organisers and volunteers for putting together a fantastic event!
December 17, 2025 at 1:45 PM
It's the final day of @TAG2025_York 😭
It's not all bad news, though, as our collection of Contemporary #Archaeology and Theory is still FREE until the end of the month 🏺 www.cambridge.org/core/journal...
Massive thanks to all the organisers and volunteers for putting together a fantastic event!
It's not all bad news, though, as our collection of Contemporary #Archaeology and Theory is still FREE until the end of the month 🏺 www.cambridge.org/core/journal...
Massive thanks to all the organisers and volunteers for putting together a fantastic event!
Reposted by Niklas Hausmann
Out now & #openaccess:
Grimm, Oliver (Ed.): Beast and Human: Case Studies for Northern Europe from Prehistoric to Early Modern Times, Heidelberg: Propylaeum, 2025 (LEIZA Publications, Volume 8).
doi.org/10.11588/pro...
#LEIZArchaeology #Archaeology #HumanAnimalStudies
Grimm, Oliver (Ed.): Beast and Human: Case Studies for Northern Europe from Prehistoric to Early Modern Times, Heidelberg: Propylaeum, 2025 (LEIZA Publications, Volume 8).
doi.org/10.11588/pro...
#LEIZArchaeology #Archaeology #HumanAnimalStudies
December 12, 2025 at 10:29 AM
Out now & #openaccess:
Grimm, Oliver (Ed.): Beast and Human: Case Studies for Northern Europe from Prehistoric to Early Modern Times, Heidelberg: Propylaeum, 2025 (LEIZA Publications, Volume 8).
doi.org/10.11588/pro...
#LEIZArchaeology #Archaeology #HumanAnimalStudies
Grimm, Oliver (Ed.): Beast and Human: Case Studies for Northern Europe from Prehistoric to Early Modern Times, Heidelberg: Propylaeum, 2025 (LEIZA Publications, Volume 8).
doi.org/10.11588/pro...
#LEIZArchaeology #Archaeology #HumanAnimalStudies
Reposted by Niklas Hausmann
An all-too-common interaction I've had:
Scientist: Our research can help shape policy to protect this endangered animal.
Me: Neat! How? What policy? What is it now, and what should it be instead?
Scientist: Uhhhhh.....
Our new paper can help!
www.southernfriedscience.com/shark-scient... 🧪🦑🌍🦈
Scientist: Our research can help shape policy to protect this endangered animal.
Me: Neat! How? What policy? What is it now, and what should it be instead?
Scientist: Uhhhhh.....
Our new paper can help!
www.southernfriedscience.com/shark-scient... 🧪🦑🌍🦈
Shark scientists want their research to help save threatened species, but don’t know how. Our new paper can help.
Sharks are some of the most threatened animals on Earth, and accordingly many scientists who study sharks want their research to be useful for conservation. However, most scientific training does n…
www.southernfriedscience.com
December 4, 2025 at 7:50 PM
An all-too-common interaction I've had:
Scientist: Our research can help shape policy to protect this endangered animal.
Me: Neat! How? What policy? What is it now, and what should it be instead?
Scientist: Uhhhhh.....
Our new paper can help!
www.southernfriedscience.com/shark-scient... 🧪🦑🌍🦈
Scientist: Our research can help shape policy to protect this endangered animal.
Me: Neat! How? What policy? What is it now, and what should it be instead?
Scientist: Uhhhhh.....
Our new paper can help!
www.southernfriedscience.com/shark-scient... 🧪🦑🌍🦈
Reposted by Niklas Hausmann
My dad abhors any negative comments about immigrants. Asked him recently why he’s so strong on it: ‘Because we’re always happy to take the rich and clever ones. Which means it’s not about disliking immigrants. It’s about disliking the poor and vulnerable. And that’s a bad human instinct.’
December 7, 2025 at 8:31 AM
My dad abhors any negative comments about immigrants. Asked him recently why he’s so strong on it: ‘Because we’re always happy to take the rich and clever ones. Which means it’s not about disliking immigrants. It’s about disliking the poor and vulnerable. And that’s a bad human instinct.’
Reposted by Niklas Hausmann
HEY! YOU! ggdibbler 0.6.1 is finally up on CRAN!
harriet-mason.github.io/ggdibbler/in...
You can now pass random variables to any aesthetic in any ggplot geom/stat. If you can express it as a distribution, ggdibbler can plot it. It also works with ggplot extensions, like gganimate. #rstats
harriet-mason.github.io/ggdibbler/in...
You can now pass random variables to any aesthetic in any ggplot geom/stat. If you can express it as a distribution, ggdibbler can plot it. It also works with ggplot extensions, like gganimate. #rstats
December 6, 2025 at 3:16 PM
HEY! YOU! ggdibbler 0.6.1 is finally up on CRAN!
harriet-mason.github.io/ggdibbler/in...
You can now pass random variables to any aesthetic in any ggplot geom/stat. If you can express it as a distribution, ggdibbler can plot it. It also works with ggplot extensions, like gganimate. #rstats
harriet-mason.github.io/ggdibbler/in...
You can now pass random variables to any aesthetic in any ggplot geom/stat. If you can express it as a distribution, ggdibbler can plot it. It also works with ggplot extensions, like gganimate. #rstats
Reposted by Niklas Hausmann
Wally Wallington si diverte a dimostrare cosa si può fare con una leva.
Stima 25-year with only 520 work
@maurov1968.bsky.social
Stima 25-year with only 520 work
@maurov1968.bsky.social
August 26, 2025 at 6:24 PM
Wally Wallington si diverte a dimostrare cosa si può fare con una leva.
Stima 25-year with only 520 work
@maurov1968.bsky.social
Stima 25-year with only 520 work
@maurov1968.bsky.social
Starting my trip to Stavanger's AEA @envarch.bsky.social conference!
Our talk on Mesolithic Cnoc Coig 🏺is on Friday!
It's just after lunch, so you can all be at peak attentiveness.
@leizarchaeology.bsky.social
@unistavanger.bsky.social
Our talk on Mesolithic Cnoc Coig 🏺is on Friday!
It's just after lunch, so you can all be at peak attentiveness.
@leizarchaeology.bsky.social
@unistavanger.bsky.social
December 3, 2025 at 7:54 AM
Starting my trip to Stavanger's AEA @envarch.bsky.social conference!
Our talk on Mesolithic Cnoc Coig 🏺is on Friday!
It's just after lunch, so you can all be at peak attentiveness.
@leizarchaeology.bsky.social
@unistavanger.bsky.social
Our talk on Mesolithic Cnoc Coig 🏺is on Friday!
It's just after lunch, so you can all be at peak attentiveness.
@leizarchaeology.bsky.social
@unistavanger.bsky.social
Reposted by Niklas Hausmann
Headed back from an EXCELLENT trip to @leizarchaeology.bsky.social. Matt will stay to finish his samples. But why zap shells with a laser? Sure, we’re figuring out what seasons these oysters were collected 200yrs ago, and from where in the estuary, but so what? #archaeology #ecology
November 29, 2025 at 9:36 AM
Headed back from an EXCELLENT trip to @leizarchaeology.bsky.social. Matt will stay to finish his samples. But why zap shells with a laser? Sure, we’re figuring out what seasons these oysters were collected 200yrs ago, and from where in the estuary, but so what? #archaeology #ecology
Reposted by Niklas Hausmann
German academia: great place to work? You should think twice before giving it a try: Permanent positions are very rare, most scholars have to drop out after some precarious years. @dianakwon.bsky.social has written a great piece about this for @nature.com and also talked to yours truly. #IchBinHanna
How to stop the revolving door of German academia
Germany is one of the most popular destinations for students and scholars worldwide, but those pursuing academic careers face significant hurdles to success.
www.nature.com
November 28, 2025 at 12:18 PM
German academia: great place to work? You should think twice before giving it a try: Permanent positions are very rare, most scholars have to drop out after some precarious years. @dianakwon.bsky.social has written a great piece about this for @nature.com and also talked to yours truly. #IchBinHanna
Reposted by Niklas Hausmann
Explore marine biodiversity data with @dassh-at-the-mba.bsky.social Mapper, an interactive map that lets you search, view and download species and biotope records by survey, species name, location, biotope type and more.
Visit: www.dassh.ac.uk/dasshmapper to start exploring UK marine life data.
Visit: www.dassh.ac.uk/dasshmapper to start exploring UK marine life data.
November 27, 2025 at 5:06 PM
Explore marine biodiversity data with @dassh-at-the-mba.bsky.social Mapper, an interactive map that lets you search, view and download species and biotope records by survey, species name, location, biotope type and more.
Visit: www.dassh.ac.uk/dasshmapper to start exploring UK marine life data.
Visit: www.dassh.ac.uk/dasshmapper to start exploring UK marine life data.
Reposted by Niklas Hausmann
The #LandscapesofConflict conference is underway.
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
November 27, 2025 at 1:48 PM
The #LandscapesofConflict conference is underway.
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
Until Friday, international experts are exploring how conflicts have shaped landscapes and human–environment interactions for more than 6,000 years. A deep-time perspective on a pressing global issue.
#LEIZArchaeology #ConflictArchaeology #Research
Reposted by Niklas Hausmann
I've written a few, mostly scholarly, but this is probably the most publicly accessible. A short book written to introduce readers to how archaeologists get stories out of dirt, bones, and broken things
November 27, 2025 at 3:15 AM
I've written a few, mostly scholarly, but this is probably the most publicly accessible. A short book written to introduce readers to how archaeologists get stories out of dirt, bones, and broken things
Reposted by Niklas Hausmann
Come work with us! Prehistoric Policies is coordinated by me, Ben Elliott @archsoundscapes.bsky.social and Alice Rudge @alicerudge.bsky.social. Contact me with any queries.
Project Researcher (environmental policy) @ucdarchaeology.bsky.social
Temporary 12 months post of Project Researcher as part of the @britishacademy.bsky.social funded ‘Prehistoric Policies’ project.
Job Ref 019121, search www.ucd.ie/workatucd/jo....
@iaiarchaeo.bsky.social, @cifa-ec.bsky.social
Temporary 12 months post of Project Researcher as part of the @britishacademy.bsky.social funded ‘Prehistoric Policies’ project.
Job Ref 019121, search www.ucd.ie/workatucd/jo....
@iaiarchaeo.bsky.social, @cifa-ec.bsky.social
November 14, 2025 at 2:09 PM
Come work with us! Prehistoric Policies is coordinated by me, Ben Elliott @archsoundscapes.bsky.social and Alice Rudge @alicerudge.bsky.social. Contact me with any queries.
Reposted by Niklas Hausmann
Why is Matt zapping oyster shells thousands of times with lasers??!!
This week we’re analyzing oysters with Dr. @niklashausmann.bsky.social using laser induced breakdown spectrometry (LIBS) to “map” the elemental makeup of the oyster’s shell throughout its life 1/3 #archaeology #ecology
This week we’re analyzing oysters with Dr. @niklashausmann.bsky.social using laser induced breakdown spectrometry (LIBS) to “map” the elemental makeup of the oyster’s shell throughout its life 1/3 #archaeology #ecology
November 24, 2025 at 3:52 PM
Why is Matt zapping oyster shells thousands of times with lasers??!!
This week we’re analyzing oysters with Dr. @niklashausmann.bsky.social using laser induced breakdown spectrometry (LIBS) to “map” the elemental makeup of the oyster’s shell throughout its life 1/3 #archaeology #ecology
This week we’re analyzing oysters with Dr. @niklashausmann.bsky.social using laser induced breakdown spectrometry (LIBS) to “map” the elemental makeup of the oyster’s shell throughout its life 1/3 #archaeology #ecology
Reposted by Niklas Hausmann
Usually this is done with 15-20 oxygen isotope samples/shell. Taking weeks of work. For Matt’s sample of oysters, this would usually cost $45k. Instead, it costs a trip to @leizarchaeology.bsky.social + a single oxygen sample/shell (to determine the salinity of the water the oyster grew) 3/3
November 24, 2025 at 3:52 PM
Usually this is done with 15-20 oxygen isotope samples/shell. Taking weeks of work. For Matt’s sample of oysters, this would usually cost $45k. Instead, it costs a trip to @leizarchaeology.bsky.social + a single oxygen sample/shell (to determine the salinity of the water the oyster grew) 3/3