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Theo Bakker

@tcmbakker.bsky.social

I am Co-Editor-in-Chief for Behavioral Ecology and Sociobiology and retired professor of Animal Ecology, University of Bonn

79 Followers  |  84 Following  |  4 Posts  |  Joined: 11.03.2025  |  1.8044

Latest posts by tcmbakker.bsky.social on Bluesky

Zwei Bilder Paris 2007 und Paris 2024, Unterschied und Entwicklung der Luftverschmutzung

Zwei Bilder Paris 2007 und Paris 2024, Unterschied und Entwicklung der Luftverschmutzung

Rückgang der Luftverschmutzung in Paris !
Umweltzonen, Reduzierung von Parkplätzen, Ausbau der Rad-Infrastruktur, Transit- und Luftreinhalteregeln, Verdreifachung der SUV-Parkgebühren,
➡️ #Verkehrswende #Mobilitätswende zum Wohl der Bürger in der Stadt

#Berlin

05.12.2025 02:38 — 👍 623    🔁 213    💬 26    📌 11
A card showing James Watson on one side, and the headline "DNA pioneer James Watson has died ― colleagues wrestle with his legacy" on the other

A card showing James Watson on one side, and the headline "DNA pioneer James Watson has died ― colleagues wrestle with his legacy" on the other

Watson – who won the Nobel Prize for his role in divining the structure of DNA; was instrumental in initiating and propelling the Human Genome Project; and who became notorious for his history of racist and sexist comments – has died at 97

Read the full story: go.nature.com/47NJ6wy

08.11.2025 10:24 — 👍 56    🔁 27    💬 5    📌 7
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I am recruting a #postdoc for a project investigating the evolution of avian heat tolerance in @erc.europa.eu project #HotLife. Fieldwork over broad latitudinal gradients, common-garden experiments, and more. Read more and apply👇
shorturl.at/WA1Qa

Would appreciate a re-post!

@evoldir.bsky.social

05.11.2025 08:38 — 👍 51    🔁 79    💬 0    📌 4
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Boom erneuerbarer Energien:
#China schafft in sechs Monaten doppelt so viel Solarkraft wie Deutschland in 25 Jahren

Die Volksrepublik bricht beim Ausbau der erneuerbaren Energien diverse Rekorde. Eine gute Nachricht für das #Weltklima.
Von Claus Hecking

04.11.2025 07:50 — 👍 108    🔁 23    💬 7    📌 0
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Fotos ohne jeglichen Erkenntnisgewinn aber schön anzusehen.

Cyclopoider Ruderfußkrebs:

02.11.2025 13:47 — 👍 92    🔁 11    💬 5    📌 0
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7 basic science discoveries that changed the world Ozempic, MRI machines and flat screen televisions all emerged out of fundamental research decades earlier — the very types of study being slashed by the US government.

Scientists point to a long list of findings that emerged out of fundamental research, the type of studies the US government is cutting, and went on to change the world. Nature lists a few of their examples. 🧪

01.11.2025 16:03 — 👍 46    🔁 25    💬 2    📌 3
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Carnivorous 'Death-Ball' Sponge Among 30 New Deep-Sea Weirdos Discovered In The Southern Ocean Just wait until you see this thing...

Carnivorous 'Death-Ball' Sponge Among 30 New Deep-Sea Weirdos Discovered In The Southern Ocean

31.10.2025 05:00 — 👍 3    🔁 4    💬 0    📌 0

Nuclear weapons tests by country:

🇺🇸 USA: 1,032
☭ USSR: 727
🇫🇷 France: 215
🇬🇧 UK: 88
🇨🇳 China: 47
🇰🇵 North Korea: 6
🇮🇳 India: 3
🇵🇰 Pakistan: 2

31.10.2025 05:04 — 👍 2    🔁 2    💬 0    📌 0
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Quantitative Genetics in Natural Populations Phenotypes evolve under natural selection if, and only if, they are genetically variable. While evolutionary ecologists have long studied natural sele…

Myself and Alastair Wilson wrote an updated version of our 2016 primer to quantitative genetics in the wild: www.sciencedirect.com/science/arti.... Happy to share a copy if interested. It is also on research gate

21.10.2025 16:31 — 👍 69    🔁 38    💬 3    📌 1

Check out this fascinating special edition of the Journal of Fish Biology @thefsbi.bsky.social focussed on how we study cognition in fishes- led by lab alumnus @nickarjones.bsky.social

21.10.2025 17:48 — 👍 6    🔁 3    💬 0    📌 0
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People with blindness can read again after retinal implant An electronic eye implant has restored vision in people with blindness caused by age-related macular degeneration.

An electronic eye implant has restored vision in people with blindness caused by age-related macular degeneration

go.nature.com/48JVwrv

20.10.2025 15:29 — 👍 118    🔁 43    💬 1    📌 3

Most populous countries in 1950:

🇨🇳 China: 554 million
🇮🇳 India: 376 million
Soviet Union: 178 million
🇺🇸 USA: 158 million
🇯🇵 Japan: 82 million
🇩🇪 Germany: 70 million
🇮🇩 Indonesia: 69 million
🇧🇷 Brazil: 54 million
🇬🇧 UK: 50 million
🇮🇹 Italy: 46 million

11.10.2025 07:37 — 👍 3    🔁 1    💬 0    📌 0
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We are hiring - PDRA position exploring how information access shapes social dynamics in killer whales. Collaboration with @samellisq.bsky.social @drwhale.bsky.social Prof Dan Franks (York) start 1st Nov (or ASAP) end 31st Oct 2028. Apps close on 19th Oct.

www.jobs.ac.uk/job/DOT336/p...

23.09.2025 18:29 — 👍 31    🔁 44    💬 1    📌 5
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

Awesome faculty position alert! Tenure-track assistant professor position in Evolutionary Biology, with a focus on organismal responses to environmental change.

Please help spread the word!
apply.interfolio.com/173889

12.09.2025 21:50 — 👍 27    🔁 33    💬 1    📌 1
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🔴 PFAS ('forever chemicals') found in wild fish across multiple EU countries!

New EEB report shows that:

🧪 Most samples exceed proposed safety limits
⚠️ Some exceed by 10,000x
🕰️ Member States want to delay action until 2051

Link in comments ⬇️

#PFAS #Environment #PublicHealth #ForeverChemicals

09.09.2025 06:15 — 👍 59    🔁 38    💬 1    📌 3
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Evolutionary age correlates with range size across plants and animals - Nature Communications Why are some species widespread while others are found only in small, isolated areas? This study shows that species with narrow ranges, and thus higher extinction risk, are often island-restricted, poor dispersers, and have evolved relatively recently.

Why are some species widespread while others are found only in small, isolated areas? A study in Nature Communications shows that species with narrow ranges, and thus higher extinction risk, are often island-restricted, poor dispersers, and have evolved relatively recently. #evosky 🧪

08.09.2025 22:43 — 👍 53    🔁 22    💬 0    📌 0
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Why would anyone want to be a scientist?

"Doing good science requires the utmost exertion of body, mind and spirit, yet is consistently filled with failure and rejection."

journals.biologists.com/jcs/article/...

07.09.2025 12:06 — 👍 92    🔁 37    💬 7    📌 2

🧪 ETHOLOGY: Biases in animal behaviour research are inevitable—but can be identified & mitigated 👀🐒
Winder et al. propose a “knowns & unknowns” framework to help researchers reflect on overlooked assumptions & strengthen science. It's #OpenAccess: 🔗 doi.org/10.1111/eth....

09.09.2025 11:19 — 👍 2    🔁 1    💬 1    📌 0
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Join us tomorrow for the first FINE of the Fall 2025:

2nd September, Andrew Bass, Cornell University (USA)

Title: Crystal Clear Brains: Benefits & Tradeoffs of Miniaturization in Danionella Fishes

When: 2nd September, presentation starts at 11:00 NYC / 17:00 Paris.

01.09.2025 07:04 — 👍 2    🔁 3    💬 0    📌 0
Sexually attractive males produce relatively more sons in a fish with external fertilisation According to the mate attractiveness hypothesis of biased progeny sex-ratio, sexually attractive males should produce relatively more sons. We tested this hypothesis with three-spined sticklebacks Gas...

New preprint: Bakker, T. C. M., Müller, B., Mehlis-Rick, M. "Sexually attractive males produce relatively more sons in a fish with external fertilisation": see www.researchsquare.com/article/rs-7...

22.08.2025 09:59 — 👍 1    🔁 0    💬 0    📌 0
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Adaptive variation in opsin expression of sticklebacks from different photic habitats - Hydrobiologia We studied phenotypic and genetic adaptation of the visual system of three-spined sticklebacks, Gasterosteus aculeatus, from North Uist, Scotland. We quantified differences in opsin gene expression of...

Our paper Bakker TCM, Hiermes M, Müller B, Martin S, Rennison DJ, Rick IP: "Adaptive variation in opsin expression of sticklebacks from different photic habitats" has now been printed: see link.springer.com/article/10.1...

22.08.2025 09:55 — 👍 2    🔁 0    💬 0    📌 0
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Bamfield Stickleback 2025

On my way home from the 11th triennial Stickleback conference, which was at Bamfield Marine Sciences Centre on Vancouver Island. Had a great time, with lots of fascinating science talks and great conversations with colleagues. Some photos:
adobe.ly/4fieJBD

02.08.2025 06:09 — 👍 10    🔁 1    💬 0    📌 0
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Groen en betaalbaar treinreizen 🚄 Oproep: maak duurzaam treinreizen betaalbaar Treinreizen in Nederland en Europa moet betaalbaar, toegankelijk en klimaatvriendelijk zijn. Op dit moment worden treintickets elk jaar duurder, terwijl vl...

Doe eventjes wat nodig is, teken 'm die oproep: doemee.greenpeace.nl/actie/groen-...

25.07.2025 12:29 — 👍 9    🔁 5    💬 0    📌 1
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Postdoctoral researcher: avian microbiomes and reproduction We are looking for a postdoctoral researcher to join our team working on avian reproductive microbiomes at the Netherlands Institute of Ecology (NIOO-KNAW) in the group of Dr. Melissah Rowe. The postd...

We are looking for a postdoc to join our group to work on an ERC funded project on avian reproductive microbiomes. nioo.knaw.nl/en/vacancies...
Please RT! #microbes #microbiomes #sparrows #postdoc

24.07.2025 12:39 — 👍 23    🔁 42    💬 0    📌 1
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The Local Organizing Commitee welcomes behavioral ecologists from across the world and of all career stages to enjoy a five-day meeting rich in top-notch science and ample networking opportunities in Turin (Italy), 20-24 July 2026.

28.06.2025 21:24 — 👍 97    🔁 44    💬 1    📌 7
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New cover image for Behavioral Ecology and Sociobiology
Writer: tbakker1
tbakker1
49 minutes ago
1 min read

Starting with the May issue, BES has a new cover image.

See Szala K, Tobolka M, Surmacki A (2025) Behav Ecol Sociobiol 79:66.

link.springer.com/article/10.1...

20.06.2025 15:15 — 👍 3    🔁 1    💬 0    📌 1
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Beautiful addiction: art meets taxidermy in new Amsterdam museum - DutchNews.nl Before Ferry van Tongeren saw the insides of wild animals, he thought nature was beautiful. Then this former ad man retrained as a taxidermist, hooked up with artistic partner Jaap Sinke, took…

In a converted canal building in Amsterdam, they are showing off a collection of truly original and decidedly macabre preserved animal artworks in the new Art Zoo Museum. www.dutchnews.nl/2025/06/beau...

22.06.2025 10:01 — 👍 2    🔁 1    💬 0    📌 0
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Highway to heaven: Happy 750th birthday, Amsterdam!

Highway to heaven: Happy 750th birthday, Amsterdam! www.dutchnews.nl?p=253574

22.06.2025 10:13 — 👍 6    🔁 3    💬 0    📌 0
AI in Scientific Writing

AI in Scientific Writing

Researchers in ANZ: Explore how Generative AI is transforming academic writing & publishing! Join our webinar to learn about AI tools, ethics, editorial policies & strategies to protect research integrity. bit.ly/4jRq24i #Webinar #AcademicSky

21.06.2025 17:30 — 👍 5    🔁 5    💬 0    📌 0
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New cover image for Behavioral Ecology and Sociobiology
Writer: tbakker1
tbakker1
49 minutes ago
1 min read

Starting with the May issue, BES has a new cover image.

See Szala K, Tobolka M, Surmacki A (2025) Behav Ecol Sociobiol 79:66.

link.springer.com/article/10.1...

20.06.2025 15:15 — 👍 3    🔁 1    💬 0    📌 1

@tcmbakker is following 20 prominent accounts