Johanna Mappes

Johanna Mappes

@jmappes.bsky.social

Professor of Ecology at the University of Helsinki 🧪 #Animal behaviour, #animal coloration, #evoeco, #moths, #sensory ecology #fundamental science I teach birds to play computer games

2.4K followers233 following39 posts

Johanna Mappes reposted

Mikko Kolkkala
@xcsci.bsky.social

Jos vapiti alkaa lisääntyä Suomessa, niin siitä tulee RIISTALAJI, ja niitähän koskevat ihan eri säännöt kuin muita haitallisia vieraslajeja yle.fi/a/74-20246679

yle.fiViitasaarella nähty Siperian vapiti puhuttaa tutkijoita – emeritusprofessorin mukaan uusi laji vaatii muuttamaan lakiaSuomeen voi levitä uusia hirvilajeja Venäjältä, Ruotsista ja Norjasta. Viitasaarella Keski-Suomessa havaittiin tällä viikolla harvinainen siperianvapiti.

Johanna Mappes reposted

Hanna Kokko
@kokkonut.bsky.social

There is still time to apply! I'll start reading the applications this Friday.

Hanna Kokko@kokkonut.bsky.social

Come and work with us (the Kokkonuts) as a postdoc! Our research within (theory-evo-eco) is broad; let's say it's implicitly defined by the journal club papers we read. Which is why the application process includes a JC-related task, I hope it'll be a fun one for you! www.evoldir.net/brian/evoldi...

evoldir.netevoldir.net

Johanna Mappes reposted

Jon Simons
@jonsimons.bsky.social

The advert for the newly-endowed Hatton Professorship of Sustainability is now out! www.cam.ac.uk/jobs/hatton-...

cam.ac.ukHatton Professorship of SustainabilityThe Board of Electors to the Hatton Professorship of Sustainability invite applications for this Professorship from persons whose work falls within the general field of the Professorship (combining be...
Jon Simons@jonsimons.bsky.social

Excited about new @cam.ac.uk Professorship that will soon be advertised for a behavioural change expert to address challenges affecting biodiversity, conservation and sustainability

cam.ac.ukCambridge seeks behaviour change expert to tackle climate crisis as first Hatton Professor of SustainabilityTrinity College and University of Cambridge launch global hunt for new professor of sustainability who can help help effect change in choices and actions taken by the public.

Johanna Mappes reposted

Michal Barták
@michalbartak.bsky.social

New paper — It was fun to go through local sources to see how butterflies move over time. Happy to see everyone’s effort and Shawan’s leadership out now🦋

Shawan Chowdhury@shawan-chowdhury.bsky.social

Our new Nature Eco Evo paper documents range shifts in 1,758 butterfly species across 105 countries, primarily due to climate change. 🦋80% expanded 🦋27% contracted 🦋22% shifted elevation 🦋342 showed multiple shift types. doi.org/10.1038/s415... @monashbiol.bsky.social @monashscience.bsky.social

Johanna Mappes reposted

Emma-Liina Marjakangas
@emmamarjakangas.bsky.social

📢 PhD opportunity at the University of Helsinki! Join the ANEW project to study ecological networks, seed dispersal and biodiversity conservation under global change. Apply by 31 Aug 2026. 🔗 jobs.helsinki.fi/job/31_8_202... #PhD #Ecology #Conservation #AcademicJobs

jobs.helsinki.fiDoctoral Researcher (PhD student) in Ecological Networks and Biodiversity ConservationDoctoral Researcher (PhD student) in Ecological Networks and Biodiversity Conservation

Johanna Mappes reposted

Jaakko Husa
@husajaakko.bsky.social

WP is clueless. The judgment is not about religious views/convictions. The judgment concerns author's (she is a doctor) medical views. False and derogatory medical claims made within the context of religious scripture do not enjoy the protection of religious freedom.

Johanna Mappes
@jmappes.bsky.social

#chemicaldefence #volatiles #predators @aplantaginis.bsky.social Cool work by my cool student! 💪👇👇👇

Zowi Oudendijk@zowioudendijk.bsky.social

One of my PhD chapters is now out! It’s a review on pyrazines in insects and their biological roles and their evolution. onlinelibrary.wiley.com/doi/10.1002/... @lepphylo.bsky.social @jmappes.bsky.social

onlinelibrary.wiley.comEcology and evolution of pyrazines in insectsChemical communication is the oldest and most widespread form of signalling among and within organisms. Among the many compounds involved in such communication, pyrazines – nitrogen-containing hetero...
Johanna Mappes
@jmappes.bsky.social

Measuring predation in the wild is hard. @mherberstein.bsky.social We compared wing damage, artificial replicas, and bird surveys in Australian butterfly communities. Methods were complementary — together they better estimate predation risk. royalsocietypublishing.org/rsos/article...

royalsocietypublishing.orgComplementary approaches to measure predation pressure on butterfly populations in AustraliaAbstract. Predation pressure is a major force driving the evolution of anti-predatory traits, yet quantifying its intensity in the wild remains difficult.
Johanna Mappes
@jmappes.bsky.social

@koskenpato.bsky.social @caritalindstedt.bsky.social Why stay cryptic if chemically defended? In pine sawfly (Neodiprion sertifer) larvae, higher conspicuousness reduced survival. Weak warning signals may rely on behavior and grouping. academic.oup.com/beheco/advan... #Aposematism

academic.oup.comHigh detectability costs select weak warning signals in chemically defended gregarious preyWhy do some chemically defended prey use weak visual signals when conspicuous aposematic coloration seems more effective for predator avoidance? Using weak
Johanna Mappes
@jmappes.bsky.social

With @nathist.bsky.social we revisited the Earophila badiata complex by using: Quantitative wing image analysis Genitalia + micro-CT mtCOI barcodes No support for several named taxa → synonymies proposed; fennokarelica reduced below subspecies rank. peerj.com/articles/206... #IntegrativeTaxonomy

peerj.comQuantitative image analysis applied to revise the taxonomy of the Palearctic Earophila badiata species group (Lepidoptera: Geometridae: Larentiinae)The geometrid moth Earophila badiata (Denis & Schiffermüller, 1775), which occurs widely in the Palearctic realm, has rapidly filled a large gap in its range across southern Finland during the past tw...

Johanna Mappes reposted

Chris Jiggins
@chrisjiggins.bsky.social

This is an exciting opportunity to work in Helsinki, and in collaboration with us in Cambridge… on moth colouration. Could focus on the role of Ivory long non coding RNA in regulating melanisation…

Johanna Mappes@jmappes.bsky.social

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...

Johanna Mappes
@jmappes.bsky.social

And here is the working link: jobs.helsinki.fi/job/Helsinki...

jobs.helsinki.fiPostdoctoral Researcher in Evolutionary Genetics & Ecology of Colour and PerformancePostdoctoral Researcher in Evolutionary Genetics & Ecology of Colour and Performance
Johanna Mappes@jmappes.bsky.social

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...

Johanna Mappes reposted

Craig Primmer
@fishcongen.bsky.social

Humane genetics and genomics position in Helsinki open for 9 more days!

Craig Primmer@fishcongen.bsky.social

3 prof positions open in Helsinki! 🧬Human genetics and genomics (open rank, DL 10.10) 🧬Cellular physiology (TT, DL 17.8) 🏙️ Ecological restoration of urban environments (open rank, DL 17.8) www.helsinki.fi/en/about-us/... Come and join us in the happiest country in the world 5 years running!

helsinki.fiOpen positions | University of HelsinkiRead about our range of career options and apply now. Application processes ends on the date indicated in the job ad at 23.59 local Helsinki time (EEST).

Johanna Mappes reposted

Julia Kemppinen
@juliakemppinen.bsky.social

One week to go! I am recruiting a postdoc, call ends October 7 🍃🌿☘️ In ecology, University of Helsinki is the leading university in Finland and the Nordics and the fifth-best in Europe (ShangaiRanking's 2024). And for 8 years in a row, Finland is still the happiest country in the world :-)

Julia Kemppinen@juliakemppinen.bsky.social

I am recruiting a postdoctoral researcher to conduct experiments on tundra plants and microclimates 🌱🌡️💧❄️ Call ends October 7! jobs.helsinki.fi/job/Helsinki...

jobs.helsinki.fiPostdoctoral Researcher, Biodiversity ChangePostdoctoral Researcher, Biodiversity Change

Johanna Mappes reposted

Mikael Niku
@mikaelniku.bsky.social

Selasin Meranon ja @persut.bsky.social pamfletin Suomen tiederahoituksesta (oikeasti: Akatemiasta). Kansi sanoo ”analyysi”, mutta pamfletti on osuvampi, ja kun kirjoittaja on sitä käyttänyt, mennään sillä. Luin nopsaan = ehkä jotain meni ohi, mutta nämä kantsii kirjoittaa selkeästi. 🧶

Johanna Mappes reposted

MothProf
@mothprof.bsky.social

New paper now out! Wing colouration in female wood tiger moths can be an honest signal of chemical defence, but only under specific conditions besjournals.onlinelibrary.wiley.com/doi/10.1111/... @biobiiana.bsky.social @jmappes.bsky.social @crisottocento.bsky.social

besjournals.onlinelibrary.wiley.comHonest signalling in predator–prey interactions: Testing the resource allocation hypothesisRead the free Plain Language Summary for this article on the Journal blog.

Johanna Mappes reposted

Melanie Brien
@melbrien.bsky.social

Excited to soon start my new role as Academy of Finland Research Fellow 🦋🐛I’ll later be advertising a PhD position on tiger moth colour and genomics, and will be speaking at #ESEB2025 this week if you want an idea of what’s going on!

Johanna Mappes reposted

Christos C. Ioannou
@ccioannou.bsky.social

Applications for Winter 2025 conference attendance grants are trickling in, awarding up to £500 with a high success rate (if eligible). Deadline isn't until 1st October, but don't forget to get referee statements in by then too! All the info you need is here: www.asab.org/conference-g... @asab.org

ASAB Spring 2027@asab-meetings.bsky.social

ICYMI : #ASABWinter2025 will take place from December 15-16, once again in lovely Edinburgh! Registration is now open 🎉 Abstract submission deadline for posters and talks is August 29 🏃‍♀️🏃🏃‍♂️ More information here: asabwinter.github.io/2025/

Johanna Mappes reposted

University of Helsinki
@helsinki.fi

"Esitys yliopistojen rahoituksen leikkaamisesta on täysin käsittämätön ajassa, jossa talouskasvu sakkaa jo valmiiksi”, sanoo rehtorimme Sari Lindblom valtionvarainministeriön ehdotuksesta. www.helsinki.fi/fi/uutiset/k...

helsinki.fiRehtori Sari Lindblom: “Satojen miljoonien yliopistoleikkauksilla Suomi uppoaisi vain syvemmälle suohon” | Helsingin yliopistoValtiovarainministeriön ehdotus valtion vuoden 2026 budjetiksi julkaistiin 6. elokuuta. Esitys sisältää mittavia, satojen miljoonien leikkauksia yliopistojen, tutkimuksen ja innovaatioiden rahoituksee...

Johanna Mappes reposted

Ville Niinistö
@villeniinisto.vihreat.fi

EU:n uusi 18. pakotepaketti Venäjää vastaan on tärkeä. Pakotteet kiristyvät venäläisiä pankkeja vastaan, Nord Streamin käyttö kielletään ja öljyn hintakatto painetaan alas yli 10 dollaria barrelilta. pakotteita tarvitaan lisää myös koska Venäjä oppii kiertämään vanhoja. Venäjän talous kurimuksessa.

Johanna Mappes reposted

Kerttu Kotakorpi
@kerttukotakorpi.bsky.social

Suo-ojien haitallisuuteen havahduttiin Suomessa vuosikymmeniä sitten. Tunnetuin haitoista näkyy monen mökkirannassa: ruskea, humuspitoinen järvivesi. Ojittamisen on monessa yhteydessä todettu lakanneen ja rajoitusten purreen. Näin ei ole kuitenkaan käynyt. yle.fi/a/74-20166276

yle.fiToholammilla on suo, jollaista ei pitäisi olla olemassaSuomen soille ei pitänyt enää kaivaa yhtään ojaa, mutta paikkatiedot osoittavat, että niin silti tapahtuu. Kävimme suolla, joka ojitettiin hiljattain.
Johanna Mappes
@jmappes.bsky.social

Sonja Koski: Simpanssi sisällämme. Ihastuttava kädellistutkijan kirja lähimmistä sukulaisistamme, kädellisten tutkimuksesta ja siitä kuinka samanlaisia ja erilaisia olemme. Sonja viimeisteli kirjan sairaalassa mutta ei ehtinyt nähdä kirjaa painettuna. Teksti on lämmintä, hauskaa, terävää Sonja❤️‍🩹

Johanna Mappes reposted

Stephen Montgomery
@ebablab.bsky.social

🚨Anyone want a job?🚨 We have two #postdocs up for grabs! 🧪 - cell developmental biology/#evodevo/#neuroevodevo - bioinformatics and molecular biology Both working on brain evolution in Heliconiini butterflies Details below! Please repost 🙏 1/n

Johanna Mappes reposted

Suvi Ruuskanen
@suviruuskanen.bsky.social

3-year #Postdoc position on the role of #genetics and #microbiome on #thermal #physiology in @erc.europa.eu project in my group at @uniofjyvaskyla.bsky.social FIN! We establish #selection lines on quails, collab @btschirren.bsky.social DL 15.7., start Nov25-Jan26 ats.talentadore.com/apply/postdo...

ats.talentadore.comPostdoctoral Researcher: Contribution of genetic background and gut microbiome on thermal physiologyA post-doctoral Researcher position is available at the Department of Biological and Environmental Sciences, University of Jyväskylä, Finland, in the group of Dr. Suvi Ruuskanen. The post-doctoral res...