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Posts by Tom Ratz

🌺 PhD position in Theoretical Evolutionary Biology! 🌺

There is about two weeks left to apply to come work with me on the evolution of plant reproductive strategies at @unifr.bsky.social ! Contact me or visit here or for more info: tinyurl.com/monoecy

Please share! 🌱

2 weeks ago 18 20 0 0
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🌱 Nous ouvrons une thèse (financée) sur l’utilisation du perce-oreille européen comme agent de lutte biologique dans les vergers de pommes et poires du Centre-Val de Loire.

📌 Candidature avant le 11 mai 2026 via le portail emploi CNRS uniquement .

Plus d’infos via le QR code ci-dessous.

3 weeks ago 5 10 1 0
Zebra finches in Australia; one of the study organisms for the PhD

Zebra finches in Australia; one of the study organisms for the PhD

Dwarf mongoose staring at a camera in South Africa; one of the PhD study organisms

Dwarf mongoose staring at a camera in South Africa; one of the PhD study organisms

📢Fully-funded #PhD opportunity with us

❓Quantifying animal #movement patterns & behavioural #interactions in a changing world

👥Joint position in @bristolbiosci.bsky.social & #MacquarieUniversity

📆19th April deadline
tinyurl.com/343acaev
#maths #modelling #data #fieldwork #Australia

🙏PLEASE SHARE

3 weeks ago 79 105 0 1
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New study out with @steigerlab.bsky.social! We investigated male care in a biparentally caring 🪲. Why does male contribution vary so much? Turns out there are repeatable individual differences, and how much the female does only affects some male care behaviors.

authors.elsevier.com/sd/article/S...

1 month ago 18 8 0 0
Open Positions – GEvol – DFG SPP 2349

Two exciting PhD positions for biologists or bioinformaticians in Barbara Feldmeyer's lab at Senckenberg Biodiversity and Climate Research Institute in Frankfurt, one on transcriptional regulation of odorant perception in hymenoptera and...

g-evol.uni-muenster.de/open-positio...

1 month ago 3 4 1 0
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SORTEE Webinar: On what makes good sharable and reproducible R code, how to do it, and why it’s good for science For this month's SORTEE webinar, Dr. Dax Kellie from the Atlas of Living Australia will present on good, sharable, and reproducible R code in science

In one week I'll be talking about tips for reproducible R code and why science would love you to try these tips on your own code too 🧪😍🌏

It's an online talk, so feel free to watch comfortably from your couch. Hope to see you there!
@sortee.bsky.social #rstats

events.humanitix.com/sortee-webin...

1 month ago 58 29 2 1
Details | Working at Bristol | University of Bristol

🚨JOB alert🚨

We have three (yes, THREE) 🌟lectureships🌟 advertised in the School of Biological Sciences, University of Bristol.

Broad remit, including #AnimalBehaviour & #GlobalChangeBiology

⏱️Deadline: 8th March 2026
🙏Please circulate widely

😊Come join us!

Full #job details: tinyurl.com/y3us95rc

1 month ago 64 97 0 0
Announcement that ABC funded every single eligible microgrant application this Febreary.

Announcement that ABC funded every single eligible microgrant application this Febreary.

Our first round of ABC microgrants for 2026 is done, and for the first time, we were able to fund each and every eligible application! 🎉🎉🎉

We funded a total of 5 applications – this was made possible thanks to our generous donors! 🙏🏽

2 months ago 21 6 1 0
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Hiring for 3 positions: Research Assistant, Field Research Coordinator, and Postdoc I am looking to hire 3 people into my lab this year. I am still doing the paperwork to get the jobs officially posted but I want to send the word out and screen potential applications right away. R…

I am hiring a research assistant (vampire bats), a Panama fieldwork coordinator (vampire bats), and also considering postdoc apps (social behavior, any species): socialbat.org/2026/02/19/h...

2 months ago 74 103 4 7
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Ecological harshness has a weak influence on reproductive trade-offs in a great tit population Abstract. Lack’s seminal work on bird clutch sizes has spurred expansive research on reproductive trade-offs, especially focusing on offspring quantity–qua

New paper out in @jevbio.bsky.social
Using 58 years of data, we look at the effect of environmental variation on reproductive trade-offs in great tits.

With @jsmartin.bsky.social, @dzchilds.bsky.social, Ella Cole, @sheldonbirds.bsky.social, @paniw.bsky.social & Arpat Ozgul

doi.org/10.1093/jeb/...

2 months ago 45 21 0 2
ExE 2026

ExE 2026

Interested in the interface of evolution 🧬 and ecology 🌳? Then you cannot miss #ExE2026! Hosted by @uniexecec.bsky.social in beautiful #Cornwall, this #conference has a stellar line-up of speakers and lots of pre-and post-conference workshops. Space is limited, so register now at evoxeco.uk!

2 months ago 33 37 1 7

New #PhD on #bees (BeeHd?)! Despite the ad saying "UK Students only", a limited number of scholarships are available for international candidates. So please apply!

2 months ago 33 39 0 1

Our new preprint is out in @ecoevorxiv.bsky.social: size-dependent aggression and behavioural plasticity in field crickets, with @cdegroot.bsky.social, @roriwijnhorst.bsky.social, @dingemanselab.bsky.social, and (not on Bluesky?) Emily Herter and Melissa Bahtije Maliqi.

2 months ago 10 0 0 0
Selectus - Home

Job alert! The University of Zurich is hiring a professor for Evolutionary Anthropology and Primatology. Learn more here: www.appointments.mnf.uzh.ch/auth/Apply/0...

2 months ago 14 18 0 0
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The submission deadline (Jan 31st) for the 2026 Mathematical and Computational Evolutionary Biology Meeting in Crete mceb2026.sciencesconf.org is getting closer!

3 months ago 7 3 0 0
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Playing dice with behavior: drivers of stochastic individuality Animal behavior is often viewed as stemming from predictable genetic and environmental factors. However, despite our best attempts to control genetic and environmental influences on behavior, variatio...

The contribution of stochastic mechanisms to behavioural individuality: Trends in Ecology & Evolution
www.cell.com/trends/ecolo...

3 months ago 3 1 0 0
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The submission deadline (Jan 31st) for the 2026 Mathematical and Computational Evolutionary Biology Meeting in Crete mceb2026.sciencesconf.org is getting closer!

3 months ago 11 6 0 0

The Canada Government will offer 400 postdoctoral fellowships to international researchers in early 2026. If you have a background in wildlife microbiome or quantitative genetics and are interested to apply to work on microbiome variation in Sable Island horses or caribou, feel free to get in touch

3 months ago 19 26 0 1

Abstract submission is now open for the ASAB Spring Conference in Bristol.

3 months ago 1 0 0 0
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Excited to be back in Edinburgh for the @britishecologicalsociety.org conference 🏴󠁧󠁢󠁳󠁣󠁴󠁿

4 months ago 8 0 0 0
Schematic of how ER-EPG plasticity enables the bump of activity in EPGs to accurately track visual cues. As a fly makes a counter-clockwise turn (top to bottom) it will view visual cues (e.g. the sun) from a new angle and the EPG activity bump (red) will swing clockwise around the network by integrating self motion signals with these visual inputs. When the fly faces a different angle, distinct visual ER neurons are active. Plasticity forms a trough of weak synapses (large circles - strong synapses, small circles - weak synapses) that allow ER neurons with distinct visual tuning to move the EPG bump via disinhibition.

Schematic of how ER-EPG plasticity enables the bump of activity in EPGs to accurately track visual cues. As a fly makes a counter-clockwise turn (top to bottom) it will view visual cues (e.g. the sun) from a new angle and the EPG activity bump (red) will swing clockwise around the network by integrating self motion signals with these visual inputs. When the fly faces a different angle, distinct visual ER neurons are active. Plasticity forms a trough of weak synapses (large circles - strong synapses, small circles - weak synapses) that allow ER neurons with distinct visual tuning to move the EPG bump via disinhibition.

*First preprint from our lab* !!!!!
How does the brain learn to anchor its internal sense of direction to the outside world? 🧭
led by Mark Plitt @markplitt.bsky.social & Dan Turner-Evans, w/ Vivek Jayaraman:
“Octopamine instructs head direction plasticity” www.biorxiv.org/content/10.6...
Thread ⬇️

4 months ago 145 52 3 4
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Join us in Crete in May 2026 for the Mathematical and Computational Evolutionary Biology Meeting mceb2026.sciencesconf.org on the island's northern coastline near Heraklion. Abstract Deadline: January 31st

4 months ago 7 5 0 0
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POSTDOC ALERT🚨

Two exciting social evolution postdoc positions live today!

We're looking for two excellent field biologists. Join us to explore the evolution of sociality in wasps across Africa. Apply by 11th January.

Collaboration with
@dustinrubenstein.com

@bristolbiosci.bsky.social

4 months ago 38 44 1 4
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British Ecological Society Annual Meeting 2025 Say Hello to the Royal Entomological Society Team at the British Ecological Society (BES) Annual Meeting 2025 in Edinburgh 15-18 December.

Are you heading to Edinburgh for #BES2025?

Do come and find us at stand LT7 in the Lennox Suite! We’d love to connect, chat about all things entomology, and share what’s new at RES.

See you there! 🪲

buff.ly/cF3NKTN

@britishecologicalsociety.org

4 months ago 8 3 1 0
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The Totem in Leuven’s central square is a hyper-realistic sculpture of a pinned jewel beetle by artist Jan Fabre. It’s now sitting right in the middle of the Christmas market.

#Leuven #Art #Beetles

4 months ago 6 1 2 0
A cartoon Macrostomum flatworm

A cartoon Macrostomum flatworm

POSTDOC recruitment! We’re looking for a post-doc to join us to work on the (epi)genetic basis of inbreeding depression as part of the ANR-funded project FRIDA
macrostomum.wordpress.com/the-genetic-...
Please share!

4 months ago 10 19 1 1
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Thrilled to announce a Postdoc opportunity in our group on the evolutionary genetics and ecology of colour. Wonderful system, great collaborators, and room to shape your own ideas.
Apply by 7 Jan: jobs.helsinki.fi/job/13477181...

4 months ago 74 63 0 4
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Social plasticity and individuality shape variation in contest behaviour Abstract. Physical contests are critical in most animals in determining access to limited resources such as territories, food and sexual partners. Individu

New paper out in @royalsocietypublishing.org Biology Letters. We show that variability in contest behaviour can emerge from plastic responses to modest size differences between focal males and their rivals.

#Drosophila
#Diptera

royalsocietypublishing.org/rsbl/article...

4 months ago 18 6 0 0
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Fully funded #PhD studentships, start Sept 2026:
1. Weaponry and aggression in wild fiddler crabs, with me, Safi Darden, Martin How tinyurl.com/weaponsPhD
2. The emotional basis of behaviour, with me, Danny Williamson, Andy Higginson tinyurl.com/emotionsPhD
#AnimalBehaviour @crab-exeter.bsky.social

4 months ago 16 26 0 1
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Volume 21 Issue 12 | Biology Letters | The Royal Society A Royal Society journal focused on the rapid publication of short high quality research articles reviews and opinion pieces across the biological sciences.

Thrilled to see our "fighting" flies featured on the cover of Biology Letters! 🎉

🪰 Drosophila prolongata

#Drosophila #Diptera

royalsocietypublishing.org/rsbl/issue

4 months ago 10 2 0 0