Tim Janicke
Evolutionary biology | Behavioural ecology | Sexual selection
@CNRS, CEFE, Montpellier
- Reposted by Tim JanickeOur new paper on Bateman gradients in black coucals and white-browed coucals is out. Females of both species outperform males in mating and reproductive success - confirming the generality of Bateman's principle when sex roles differ. Check it out: royalsocietypublishing.org/rspb/article...
- Reposted by Tim JanickeNew paper out in @funecology.bsky.social y.social: Warm waters undermine cryptic female choice! We find ovarian fluid only has a positive effect on sperm function at colder temperatures and that sneaker males have faster sperm than dominant nesting males at warmer temperatures. (1/3)
- Reposted by Tim Janicke📰Published📰Warm waters undermine cryptic female choice🐟️ buff.ly/U6zrsZ4 🧪🌍
- Reposted by Tim Janicke🚨Postdoc opportunity🚨: The impact of global change on parental care systems Interested in Shorebirds? Global change? Parental care? Fieldwork? 🐣☀️ Come join us in Budapest! Interested candidates - get in touch! Deadline Feb 28 2026
- Reposted by Tim Janicke🛠️ December’s most-read Tools and Resources paper presents a new open-source, low-cost system that accurately tracks aggression and courtship in fruit flies: buff.ly/9dRgwve Learn more about publishing your tools or resources with us: buff.ly/9u8ZA6k
- Join our symposium on Eco-evolutionary dynamics of #SexualSelection and #SexualConflict at #ECE2026Tours! ⏰ Last week to submit an abstract!
- 🧪Join the buzz at #ECE2026Tours 🦟🐝 ⏰Last week to submit your abstract! ➡️ www.ece2026.org With 50 symposia in #entomology there is one to host your reseach on your favorite #insects 🪰🐛🦋🐞🪳 😃Already 1000 participants 🙏 @irbi-tours.bsky.social @ece2026tours.bsky.social @royentsoc.bsky.social
- Reposted by Tim JanickeSize matters. Among the great apes, human penises are unusually large. Why? Check out our new open access paper in @plosbiology.org led by @upama.bsky.social. Link here: journals.plos.org/plosbiology/... And read the lay article in @theconversation.com here: journals.plos.org/plosbiology/...
- Reposted by Tim JanickeWhy is the human penis longer and thicker than those of other great apes, such as chimpanzees and gorillas? Read our @aunz.theconversation.com piece to find out! Full paper from @plosbiology.org below! 👇 1/3
- Reposted by Tim Janicke#LoveMethods26 is on its way! You can still check it out: excelscior.uc.pt/love-methods...
- Thrilled that @shreyadimri.bsky.social & I will be part of #LoveMethods26! We'll present on "How to avoid common problems in #SystematicReviews & #MetaAnalyses" 📅 Jan 19–23, 2026 | FREE | All online Everyone's invited to join the entire week of workshops! 🔗 excelscior.uc.pt/love-methods...
- Reposted by Tim Janicke🚨 PhD offer (please share) Fascinated by bird migration and movement ecology? 🦜🌍 Join us at @vogelwarte.bsky.social to study annual cycle energetics with multi-sensor loggers in multiple species Deadline: 20 Feb 2026 Starting: June 2026 Supervision: Martins Briedis & me Info: tinyurl.com/2dbv9nzh
- Reposted by Tim JanickeJust a week left to apply for a position in our Editorial Board!
- Are you an evolutionary biologist? Would you like to support your society journal? We are looking for new editorial board members across the field of evolutionary biology: 🧬🌿🪰🐀🦀🔬🧫🦠🐟🐦🧑💻🪸🦎 Learn more and find out how to apply: jevbio.net/call-for-edi... DEADLINE 19th January 2026 📣
- Reposted by Tim JanickeSame-sex sexual behaviour in non-human primates is associated with ecological factors, life history and social structure, according to research published in @natecoevo.nature.com: spklr.io/633248d15a #Ecology #EcoSky 🌍
- Reposted by Tim JanickeJoin us in Brittany? One week left to apply for this postdoc position deciphering the mysteries of inbreeding depression...
- 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!
- Reposted by Tim JanickeIs lifespan shaped by genetic conflict between the sexes? In wild marmots, longevity is heritable but negatively genetically correlated between males and females, implying selection for longer life in one sex favors shorter life in the other. Image Credit: Wikimedia academic.oup.com/evlett/advan...
- Reposted by Tim JanickeLizards have evolved their own version of rock-paper-scissors. Here's my story on the genetics behind nature's games. Gift link: nyti.ms/493KGMI
- Reposted by Tim JanickeAs an early Christmas gift, @journal-evo.bsky.social accepted @kenstoyama.bsky.social and my paper on macroevolutionary patterns of ornament evolution in birds of paradise! 🦚 Check it out here: academic.oup.com/evolut/advan...
- Reposted by Tim JanickeSurprisingly, sperm length is not linked to sperm storage traits. Instead, vagina length emerges as a key—yet overlooked—player in post-copulatory sexual selection in birds. academic.oup.com/evlett/article/9/6/686/8271462
- Reposted by Tim Janickeif you enjoyed our chat today do check out my published paper at www.sciencedirect.com/science/arti... :)
- Reposted by Tim Janicke🎄✨ Early Christmas gift! The abstract submission deadline for #ECE2026Tours has been extended to 31 January 2026 🎁🐜 For more information about the XIII European Congress of Entomology ➡️ www.ece2026.org @irbi-tours.bsky.social @cnrsbiologie.bsky.social @royentsoc.bsky.social
- In an earlier review, I proposed to define #sexualselection as competition for gametic and non-gametic resources provided by mating partners. doi.org/10.1093/behe... I’m happy to now share a few additional thoughts on it in @behavecol.bsky.social doi.org/10.1093/behe...
- Reposted by Tim JanickeKiller whales and humans share a trait that is otherwise rare in nature: a long female menopause. Read 'Sexually antagonistic selection, X-chromosome relatedness and the #evolution of menopause in killer whales': doi.org/10.1098/rsbl... #BiologyLetters #ecology Image: Christopher Michel
- Reposted by Tim JanickePOSTDOC 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!
- Reposted by Tim JanickeNow out! How important is social experience in male mating behavior? @corrallopeza.bsky.social found that experienced males were more likely to coerce non-receptive females, but did not change overall preference onlinelibrary.wiley.com/doi/10.1002/... w/ @vdbijl.bsky.social @idarolti.bsky.social
- Reposted by Tim JanickeDarwin speculated that it was energetically costly to be an hermaphrodite. He thought that might explain why they were relatively rare in animals. Our paper out today tested this conjecture for the first time. royalsocietypublishing.org/rspb/article...
- Reposted by Tim JanickeI'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students. I will record lectures & all will be found at this link: github.com/rmcelreath/s...
- Reposted by Tim JanickeKudos to @pdevillemereuil.bsky.social for writing a blog post about our paper published earlier this years in the one and only @peercomjournal.bsky.social ! You want to know how genetically variable plasticity is in your fav system, and what components of reaction norm shape vary the most? Try this!
- Took me a year (😱), but I finally published a blog post about our article on the #quantgen variance partition of phenitypic plasticity with @lmchev.bsky.social, published in @peercomjournal.bsky.social. 🇬🇧 devillemereuil.legtux.org/quantitative... 🇫🇷 devillemereuil.legtux.org/fr/genetique...
- Reposted by Tim JanickeNew paper out from our lab today in Biology Letters! This work, led by our former lab tech @avigayillev.bsky.social and lab alum Isabella Martinez, used hemiclonal analysis to show that longer matings with previously mated females are advantageous to males! doi.org/10.1098/rsbl...
- Reposted by Tim JanickeDo you find this image attractive? Then you're probably a male #bonobo, looking for a mate. But as this @plosbiology.org study shows, things are more complicated, and a swollen butt may not be as reliable a sign of fertility as it seems...
- Reposted by Tim JanickeIt’s time to publish responsibly! (And has been for a while, quite frankly...) To help you do so, @nicolasgaltier.bsky.social and coauthors have put together a handy database of academia-friendly journals, DAFNEE. You can read about it in their article just out in @jevbio.bsky.social.
- Delighted to publish Forum Article by @nicolasgaltier.bsky.social et al: "Journals run by learned societies or universities have more ethical policies while being cheaper and similarly cited" doi.org/10.1093/jeb/... Thank you for choosing JEB - we encourage the support of #societyjournals
- Just one week left to submit your abstract for our symposium on eco-evolutionary dynamics of #sexualselection and #sexualconflict at @ece2026tours.bsky.social ! Join us in beautiful Tours, France, 29 June – 3 July 2026!
- Excited to announce our symposium on eco-evolutionary dynamics of #sexualselection & #sexualconflict at the XIII European Congress of Entomology (29 June–3 July 2026, Tours, France), co-organised with Lucas Marie-Orleach! Call for abstracts is open until 15 Dec 2025. www.ece2026.org
- Reposted by Tim JanickeOur new article how sex roles shape androgen and hematocrit profiles (or the other way round?) of classically polyandrous red phalaropes and polygynous pectoral sandpipers academic.oup.com/beheco/advan...
- Reposted by Tim JanickePlease help! We are looking for tissue-specific RNA-seq datasets or pubs with both male and female individual gene expression data, not pooled, from animal species. If you know of any relevant resources, please drop a link in the comments or send me a DM. Also, please help spread the word - thanks!
- Reposted by Tim JanickeInterested in insect evolutionary genetics?🧬🪰 Come at #ECE2026Tours, to explore sexual selection and conflicts, phenotypic plasticity, host–microbiome dynamics, genetic variation and selection with keynotes incl. Pau Carazo, Patricia Beldade, Kelley Leung and Hassan Salem More info www.ece2026.org
- Not sure our paper rocks as much as Katharina’s cover illustration, but we’re very delighted it was picked as ‘Editor’s Choice’ on @evolletters.bsky.social!
- Check out our cover article by @timjanicke.bsky.social and colleagues about the role of sexual selection in animal speciation. academic.oup.com/evlett/artic.... The beautiful illustration is by Katharina Bóth.
- Reposted by Tim JanickeIt’s that time of the year again: we are looking for a new cohort of @jevbio.bsky.social editors. Join our board and support your #SocietyJournal!
- Are you an evolutionary biologist? Would you like to support your society journal? We are looking for new editorial board members across the field of evolutionary biology: 🧬🌿🪰🐀🦀🔬🧫🦠🐟🐦🧑💻🪸🦎 Learn more and find out how to apply: jevbio.net/call-for-edi... DEADLINE 19th January 2026 📣
- Reposted by Tim JanickeHuge News from the Western Amazon: it's the year 2025 and we are still describing entirely new, strikingly-distinctive large-bodied bird species! Behold Tinamus resonans sp. nov. the Slaty-masked Tinamou mapress.com/zt/article/v... #Ornithology @tetzoo.bsky.social 🪶
- Reposted by Tim JanickeLong-term experiments show that strong sexual selection in beetles accelerates genetic and reproductive divergence, supporting its role in the early stages of new species formation.
- Reposted by Tim JanickeTime to publish responsibly: DAFNEE, a database of academia-friendly journals in ecology and evolutionary biology url: academic.oup.com/jeb/article/...
- Reposted by Tim Janicke🆕 in "Ecology": Who spreads more disease - males or females? At least in water fleas, it depends on temperature 📄The sicker sex is plastic: Thermal plasticity determines sex biases in pathogen transmission doi.org/10.1002/ecy....
- Reposted by Tim JanickeVery happy to see our opinion article out in @cp-trendsecolevo.bsky.social today. 🥳 We ask whether sexual signals can influence the evolutionary trajectory of naturally selected adaptations, such as protective colouration, for better or for worse 🧐 1/n doi.org/10.1016/j.tr...
- Reposted by Tim Janicke📢Don’t miss it! Less than 3 weeks left to submit your abstract and register at the early bird rate! The 15th of December deadline for the XIII European Congress of Entomology (29 June – 3 July 2026, Tours, France) is fast approaching! All details & submission: ➡️https://www.ece2026.org/
- Reposted by Tim JanickeWe’ve started the Thermal Ecology Alliance! Go grab a cup of TEA and join the movement www.thermalecologyalliance.org/participation
- Reposted by Tim JanickeFunded PhD studentship available on the way that mating system affects coevolutionary processes with natural enemies. #ecoevo #sexualselection looking for a great candidate spread the word! www.findaphd.com/phds/project... 🧪
- Reposted by Tim JanickeMost #hummingbirds use their elegant beaks to sip nectar, but male green hermits stab each other in the neck with their sharp, straight weaponised bills when duelling during the mating season journals.biologists.com/jeb/article/... Read the full article at journals.biologists.com/jeb/article/...
- Excited to announce our symposium on eco-evolutionary dynamics of #sexualselection & #sexualconflict at the XIII European Congress of Entomology (29 June–3 July 2026, Tours, France), co-organised with Lucas Marie-Orleach! Call for abstracts is open until 15 Dec 2025. www.ece2026.org
- Confirmed line-up: Keynote: Pau Carazo (@paucarazo.bsky.social) Invited speakers: David Berger (@dbergerbiol.bsky.social), Graziella Iossa (@g-iossa.bsky.social) & Mike Ritchie
- Reposted by Tim JanickeJoin us! 🧬🪰🎉🔬 We are currently advertising two #PhD projects to study the #evolution, #development and #genomics of sexual traits in stalk-eyed flies. Deadline for applying is Wednesday, January 7, 2026. Get in touch for more info!
- Reposted by Tim Janicke[This post could not be retrieved]
- Reposted by Tim JanickeModestly, we decided to review a century's worth of theories of balancing selection :) onlinelibrary.wiley.com/doi/10.1111/...
- Reposted by Tim Janicke[This post could not be retrieved]
- Reposted by Tim JanickeIn a stunning display of coordinated movement, male Swallow-tailed Manakins dance together in groups of up to five to attract females. Researchers studied display consistency, group size effects and implications for female choice: royalsocietypublishing.org/doi/10.1098/... #RSOS #AnimalBehaviour
- Reposted by Tim JanickeFast females, slow males: accelerated ageing and reproductive senescence in Drosophila melanogaster females across diverse social environments url: academic.oup.com/evlett/artic...
- Reposted by Tim JanickeI posted a pre-print today. It's a big deal for me as it's the first paper as an independent PI. It's the culmination of 2 years worth of work and I'm really proud of it.
- Reposted by Tim JanickeOur latest issue is out! www.cell.com/current-biol... On the cover, a male Victoria's riflebird doing his best to dazzle a female (or screaming at the white blob?) Paper & dispatch here👇 www.cell.com/current-biol... www.cell.com/current-biol...
- Reposted by Tim Janicke🔔New paper alert🔔 a fun project, with some interesting findings- How short and longer of heatwave durations impact insect eggs and are results reproducible across labs? doi.org/10.1002/oik.... @biouea.bsky.social @exeter.ac.uk @bencole2504.bsky.social & co-authors
- Reposted by Tim Janicke🚨 2nd master’s project! Interested in bird migration & genomics? 🧬🐦 Use whole-genome data to trace the recent colonization of Ouessant Island by Blue Tits and explore how irruptive migratory events can shape colonization dynamics. Please share! #ornithology www.vogelwarte.ch/de/wir/mitar...
