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Sarah Hasnain

@sarahhasnain

Postdoctoral Researcher at @imev-mer.fr. Data/Statistics Consultant. Zooplankton traits, eco-evo dynamics, and physiology. Linking traits to ecosystem function. Founding member of AQUACOSM-plus ECR network. https://www.sarahhasnain.com/

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17.11.2024
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Latest posts by Sarah Hasnain @sarahhasnain

A biologically parameterized model of growth and honest measurement error in the mix. This paper is a quantum leap in handling diverse and messy cross-cultural and archaeological data on human growth, where papers usually fit arbitrary polynomials and ignore measurement error. Link in quote

05.03.2026 10:47 πŸ‘ 33 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Large-scale online deanonymization with LLMs We show that large language models can be used to perform at-scale deanonymization. With full Internet access, our agent can re-identify Hacker News users and Anthropic Interviewer participants at hig...

Delete your socks, people.

"We show that large language models can be used to perform
at-scale deanonymization...at high precision, given pseudonymous online profiles and conversations alone, matching what would take hours for a dedicated human investigator."

04.03.2026 07:41 πŸ‘ 254 πŸ” 108 πŸ’¬ 14 πŸ“Œ 16

So Moths evolved almost 300 million years ago and butterflies are newcomers at 100 million years. A fascinating look back at evolutionary history

03.03.2026 12:07 πŸ‘ 48 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0

Are generalist species just specialists we haven't measured properly?
I don't know.
Anyway, here is a paper I wrote about niche individual specialisation:

27.02.2026 13:47 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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β¬œβ—»οΈβ—½Ecosystem size reverses the effect of the spatial coupling between autotrophic and heterotrophic ecosystems

vist.ly/4szkj

#AllochthonousInput #Disturbance #Landscape #Scaling #SpeciesAreaRelationship #Subsidies

26.02.2026 17:05 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Health effects linger 20 generations after rats are exposed to fungicide Scientists say the findings are a warning about the kinds of chemical that people are exposed to in the environment.

Surprise, surprise, surprise. This study uses rats exposed to fungicide, but your β€˜exposome’ will likely dictate not only your health but the health of your family, through epigenetics changes in germ cells that can remain imprinted for generations.
#Science πŸ§ͺ

26.02.2026 12:42 πŸ‘ 412 πŸ” 154 πŸ’¬ 31 πŸ“Œ 13
26.02.2026 09:45 πŸ‘ 11304 πŸ” 3187 πŸ’¬ 62 πŸ“Œ 42
Amplifiers of Epistemic Posture Essays and writing on AI

I'm a cognitive scientist with an interest in epistemic vigilance, and this essay that's been going around gave me pause.

I don't think it's straightforward to apply the concept of epistemic vigilance to interactions with LLMs, as this essay does.

🧡/

sbgeoaiphd.github.io/rotating_the...

26.02.2026 13:18 πŸ‘ 288 πŸ” 120 πŸ’¬ 7 πŸ“Œ 33
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Should I stay or should I swim Evolutionary pressures have shaped the feeding behaviours of aquatic microorganisms in alignment with the underlying physics of fluid flow.

Do microbes get more food by swimming or staying still? Turns out both work, and cilia help them pull in nutrients no matter the strategy.
buff.ly/vK3GmK5

01.02.2026 23:28 πŸ‘ 39 πŸ” 13 πŸ’¬ 0 πŸ“Œ 1

bananas ought to be at every conference

14.02.2026 05:43 πŸ‘ 28 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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Department of Biological Sciences at the University of Bergen has a vacancy for a postdoctoral research fellow position within climate change ecology.

Work with @vvandvik.bsky.social and the @ipcc.bsky.social.

www.jobbnorge.no/en/available...

18.02.2026 10:35 πŸ‘ 12 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0

We are hiring🚨

We are looking for 2 postdocs and 1 reasearch assistant to work in the ERC project β€œTipping dynamics and resilience in adapting ecological systems” at @eawag.bsky.social
Find the description of each position and the link to apply in the thread ⬇️

04.02.2026 08:27 πŸ‘ 9 πŸ” 11 πŸ’¬ 3 πŸ“Œ 0
Lecturer in Field Ecology:Whiteknights Reading UK Field Ecologist with knowledge of survey, habitat assessment and consultancy

Job alert! Lectureship in field ecology at University of Reading with a special focus on plants.

18.02.2026 08:10 πŸ‘ 12 πŸ” 20 πŸ’¬ 1 πŸ“Œ 0
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ECR Meet-up at OSM26 The core members, Sarah Hasnain and Anika Happe, will be attending the upcoming OSM26 conference. We’d love to meet you in person and create an easy-going space for our community to connect! Our idea ...

🌍 Are you an early career researcher attending #OSM2026 in Glasgow?

🌊 Our core team @sarahhasnain.bsky.social @anikahappe.bsky.social will host an in-person social. Sign-up here to receive details: tinyurl.com/59zfav73

#OceanSciences #OSM

16.02.2026 14:34 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Happy to be invited as contributor for the V.ECOP Days Panel 8 - Seas the opportunity: Amplify your voice at Ocean Science Meeting 2026 πŸ§ͺ🌊πŸͺ¨πŸ‘©πŸ»β€πŸ”¬

#OSM2026 is organized by @aslo.org @agu.org and TOS. Learn how to join the event!

Registration link for panels: survey123.arcgis.com/share/2ef38e...

07.06.2025 22:49 πŸ‘ 9 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Great piece from @dsquareddigest.bsky.social, which touches on one of the big theories for why English-speaking countries do especially badly at housebuilding:

Adversarial and litigious common law systems (Anglo) vs judge-led civil law systems elsewhere.

samf.substack.com/p/build-the-...

16.02.2026 12:13 πŸ‘ 1036 πŸ” 373 πŸ’¬ 46 πŸ“Œ 75

I am seeking a postdoc to join my group at UCLA -- ideally the candidate would have some experience in either population genetics or microbes/microbiome (computational background needed). We have a range of projects and are happy to tailer to your interests. Please dm/email me if interested.

12.02.2026 19:18 πŸ‘ 53 πŸ” 95 πŸ’¬ 0 πŸ“Œ 0
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Researcher/Senior Researcher in Benthic Ecology at the Greenland Climate Research Center at the Greenland Institute of Natural Resources The Greenland Climate Research Centre (GCRC) at the Greenland Institute of Natural Resources (GINR) invites applications for a position as researcher/senior researcher within the field of marine benth...

We are hiring a benthic ecologist at the researcher or senior researcher level πŸ§ͺπŸŒπŸ¦‘

The Greenland Institute of Natural Resources is an excellent place to work, with friendly colleagues, support, and teaching opportunities.

naalakkersuisut.emply.net/recruitment/...

12.02.2026 22:51 πŸ‘ 39 πŸ” 48 πŸ’¬ 0 πŸ“Œ 1
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A small polymerase ribozyme that can synthesize itself and its complementary strand The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural ...

Ooooh. Cool new paper on origins of life. A simple 45-nucleotide RNA molecule that can perfectly copy itself.

www.science.org/doi/10.1126/...

13.02.2026 02:18 πŸ‘ 140 πŸ” 58 πŸ’¬ 0 πŸ“Œ 7
A four panel comic, from left to right:

1960s
LIFE IS BASED ON DNA, WHICH USES RNA TO MAKE PROTEINS THAT DO STUFF.

1980s
ALSO, THE RNA DOES SOME STUFF ITSELF, WHICH IS WEIRD.

2000s
THERE ARE 50
MANY KINDS OF RNA. IT'S DOING SO MUCH STUFF!

2020s
LIFE IS A SEETHING MASS OF RNA THAT SOMETIMES USES DNA TO TAKE NOTES.

WHAT DO THE PROTEINS DO?
ERRANDS FOR RNA.

A four panel comic, from left to right: 1960s LIFE IS BASED ON DNA, WHICH USES RNA TO MAKE PROTEINS THAT DO STUFF. 1980s ALSO, THE RNA DOES SOME STUFF ITSELF, WHICH IS WEIRD. 2000s THERE ARE 50 MANY KINDS OF RNA. IT'S DOING SO MUCH STUFF! 2020s LIFE IS A SEETHING MASS OF RNA THAT SOMETIMES USES DNA TO TAKE NOTES. WHAT DO THE PROTEINS DO? ERRANDS FOR RNA.

It’s an RNA world. RNA is posited to be the first genetic material, arising 4 billion years ago. It can store information and act as an enzyme. Eventually, it duplicated its information into a more stable form, DNA.

13.02.2026 14:17 πŸ‘ 1593 πŸ” 282 πŸ’¬ 44 πŸ“Œ 21
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Happy birthday to one of my favourite haters, Charles Darwin

12.02.2026 16:31 πŸ‘ 10354 πŸ” 3079 πŸ’¬ 162 πŸ“Œ 419
How AI assistance impacts coding speed and skill formation

How AI assistance impacts coding speed and skill formation

This is quite interesting, with implications for #teaching.

AI can make you work faster or slower, learn nothing or a lot, depending on how you use it

www.anthropic.com/research/AI-...

1/

13.02.2026 10:37 πŸ‘ 5 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Archaeologists Discover 12,000-Year-Old Sewn Clothing in Oregon Caves - GreekReporter.com Archaeologists uncover 12,000-year-old sewn hides, bone needles and artifacts in Oregon caves, revealing Ice Age clothing and culture.

greekreporter.com/2026/02/10/o...

13.02.2026 00:00 πŸ‘ 1670 πŸ” 313 πŸ’¬ 47 πŸ“Œ 20
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Temperature variation and life history mediate nonlinearity in fluctuations of marine fish populations worldwide - Nature Ecology & Evolution A global analysis of marine fish populations involving 243 recruitment and 266 spawner time series across 143 species finds that nonlinear dynamics are widespread and that the degree of nonlinearity i...

A global analysis of marine fish populations involving 243 recruitment and 266 spawner time series across 143 species finds that nonlinear dynamics are widespread and that the degree of nonlinearity is amplified by temperature variation and in fast-lived species πŸ§ͺ www.nature.com/articles/s41...

13.02.2026 09:33 πŸ‘ 6 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
Sign on a post that reads "AI IS USEFUL IF YOU ARE A LOSER WITH NO RIZZ. SERIOUSLY, READ A FUCKING BOOK AND USE YOUR BRAIN. MORON."

Sign on a post that reads "AI IS USEFUL IF YOU ARE A LOSER WITH NO RIZZ. SERIOUSLY, READ A FUCKING BOOK AND USE YOUR BRAIN. MORON."

Counterpoint:

03.02.2026 01:32 πŸ‘ 84 πŸ” 11 πŸ’¬ 1 πŸ“Œ 3
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πŸ€”Looking to make your #code more #reproducible? Check out our new and improved guide to Reproducible Code! πŸ§ͺ🌍️

Find it hereπŸ‘‡οΈ
buff.ly/10TeNok

@nhcooper123.bsky.social
@britishecologicalsociety.org

11.02.2026 13:00 πŸ‘ 64 πŸ” 43 πŸ’¬ 0 πŸ“Œ 1
Person: say, i am alive.

Computer: I am alive.

Person: oh my god.

Person: say, i am alive. Computer: I am alive. Person: oh my god.

01.02.2026 23:48 πŸ‘ 23430 πŸ” 5147 πŸ’¬ 85 πŸ“Œ 141

This was a really great discussion with people pushing the boundaries of scientific resesrch in their ManyMany projects. Really the cutting edge of scientific knowledge generation!

27.01.2026 19:19 πŸ‘ 12 πŸ” 2 πŸ’¬ 1 πŸ“Œ 1
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Postdoktor i parasiters populationsgenetik Zoologiska institutionen Γ€r en av de Γ€ldsta institutionerna vid Stockholms universitet och har en lΓ₯ng historia av grundlΓ€ggande och tillΓ€mpad djurforskning, frΓ₯n leddjur till stora dΓ€ggdjur. I

Looking for a postdoc to work with existing SNP data from parasites of guppies across Trinidad. How do river structure, host specialisation, and host behaviour structure parasite population genetic structure and evolutionary potential? Join me in Stockholm! Email me :D

su.varbi.com/what:job/job...

27.01.2026 08:38 πŸ‘ 10 πŸ” 15 πŸ’¬ 0 πŸ“Œ 0
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Luo Lab - Microbial Ecology - join Lab members will have access to state-of-the art wet lab, and computing, and sequencing resources, including in-house sequencing for both short and long reads (Illumina NextSeq and Nanopore GridION). ...

Our lab has an opening for a fully funded postdoc position! Start date is flexible; ideally summer 2026. Apply by Feb 20th for full consideration. For more about the lab and how to apply:

sites.google.com/uncc.edu/mic...

27.01.2026 11:33 πŸ‘ 11 πŸ” 12 πŸ’¬ 0 πŸ“Œ 1