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Johanna Mappes

@jmappes.bsky.social
2.4K followers 233 following 39 posts

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

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Reposted by Johanna Mappes
Mikko Kolkkala @xcsci.bsky.social · 21/09/2026
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.fi
Viitasaarella nähty Siperian vapiti puhuttaa tutkijoita – emeritusprofessorin mukaan uusi laji vaatii muuttamaan lakia
Suomeen voi levitä uusia hirvilajeja Venäjältä, Ruotsista ja Norjasta. Viitasaarella Keski-Suomessa havaittiin tällä viikolla harvinainen siperianvapiti.
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Hanna Kokko @kokkonut.bsky.social · 23/09/2026
There is still time to apply! I'll start reading the applications this Friday.
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Dr Hannah M. Rowland @hannahmrowland.bsky.social · 28/07/2026
We just released a new open resource for studying evolution, ecology, colour, behaviour & biodiversity. OzButterflies 🦋 ✨ 4,000+ individuals 🌈 Visible + UV images 🧬 CO1 barcodes 📈 Spectral reflectance data 🏞️ 125 species doi.org/10.1093/data... @mherberstein.bsky.social @livuni-ives.bsky.social
examples of database images. (B) Disassembled RGB. (C) Disassembled UV. (D) Pinned dorsal RGB. (E) Pinned dorsal UV. (F) Pinned ventral RGB. (G) Pinned ventral UV.
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Jon Simons @jonsimons.bsky.social · 26/08/2026
The advert for the newly-endowed Hatton Professorship of Sustainability is now out! www.cam.ac.uk/jobs/hatton-...
cam.ac.uk
Hatton Professorship of Sustainability
The 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...
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Mikko Kolkkala @xcsci.bsky.social · 07/08/2026
"Elämyksellisiä kokemuksia saaristossa" Kirjoitus: Seppo Knuuttila
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Michal Barták @michalbartak.bsky.social · 06/08/2026
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🦋
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Emma-Liina Marjakangas @emmamarjakangas.bsky.social · 29/07/2026
📢 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.fi
Doctoral Researcher (PhD student) in Ecological Networks and Biodiversity Conservation
Doctoral Researcher (PhD student) in Ecological Networks and Biodiversity Conservation
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Craig Primmer @fishcongen.bsky.social · 29/06/2026
Thanks to a couple of recent Ws on the funding front, we have 3 open postdoc positions in Helsinki, Finland in the field of salmonid fish ecological and evolutionary genomics. DL 7.8. More details in advert: jobs.helsinki.fi/job/Helsinki...
Basic details of the amazing post doc positions on offer with amazing image of a large Teno River salmon in background
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Johanna Mappes @jmappes.bsky.social · 26/06/2026
Nature is wonderfully diverse—and so are people. 🌈 As evolutionary biologists, we know that diversity is one of nature's greatest strengths. Happy #Pride from the Wood Tiger Moth Lab! 🐛🏳️‍🌈 @aplantaginis.bsky.social @helsinki.fi
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Jussi T. Eronen @jussiteronen.bsky.social · 13/05/2026
Taste of things to come (if things go bad) in Europe, maybe? Ping @jmappes.bsky.social @fishcongen.bsky.social
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Johanna Mappes @jmappes.bsky.social · 27/04/2026
Oh! Our #biomimetic, #aposematic #wind turbine paper is out! @grahancock.bsky.social put together a fantastic short video explaining the study — so if you don’t feel like reading the paper, here’s the nutshell version! @helsinki.fi @behavecol.bsky.social www.youtube.com/watch?v=Rg41...
youtube.com
Biomimetic aposematic wind turbines
YouTube video by George Hancock
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Jaakko Husa @husajaakko.bsky.social · 28/03/2026
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.
Opinion of the Washington Post's Editorial Board titled as "A free-speech farce in Finland"
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Johanna Mappes @jmappes.bsky.social · 26/03/2026
#chemicaldefence #volatiles #predators @aplantaginis.bsky.social Cool work by my cool student! 💪👇👇👇
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Johanna Mappes @jmappes.bsky.social · 20/02/2026
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.org
Complementary approaches to measure predation pressure on butterfly populations in Australia
Abstract. Predation pressure is a major force driving the evolution of anti-predatory traits, yet quantifying its intensity in the wild remains difficult.
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Johanna Mappes @jmappes.bsky.social · 20/02/2026
@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.com
High detectability costs select weak warning signals in chemically defended gregarious prey
Why do some chemically defended prey use weak visual signals when conspicuous aposematic coloration seems more effective for predator avoidance? Using weak
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Johanna Mappes @jmappes.bsky.social · 20/02/2026
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.com
Quantitative 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...
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Chris Jiggins @chrisjiggins.bsky.social · 22/12/2025
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…
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Johanna Mappes @jmappes.bsky.social · 12/12/2025
And here is the working link: jobs.helsinki.fi/job/Helsinki...
jobs.helsinki.fi
Postdoctoral Researcher in Evolutionary Genetics & Ecology of Colour and Performance
Postdoctoral Researcher in Evolutionary Genetics & Ecology of Colour and Performance
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Johanna Mappes @jmappes.bsky.social · 12/12/2025
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...
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Tapani Veistola @tapaniveistola.bsky.social · 10/10/2025
Lue lisää tiedotteestamme: www.sll.fi/ajankohtaist... 2/2
sll.fi
Erittäin uhanalaisen suden metsästystä ei tule aloittaa
Susi on Suomessa erittäin uhanalainen laji ja Luonnonsuojeluliitto pitää suden yleistä metsästystä täysin ennenaikaisena ja ylimitoitettuna. Suotuisaa suojelun tasoa ei ole vielä saavutettu eikä…
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Johanna Mappes @jmappes.bsky.social · 26/09/2025
🚂 🚂 whoop whoop! Meillä @helsinki.fi #Viikki on yliopistonlehtorin pesti auki! Vastuullasi on kehittää ja opettaa tulevaisuuden ympäristöongelmien ja luontokadon ratkaisijoita. Saa kernaasti jakaa! jobs.helsinki.fi/job/Helsinki...
jobs.helsinki.fi
Yliopistonlehtori, opetus- ja tutkimusalana ympäristöbiologia
Yliopistonlehtori, opetus- ja tutkimusalana ympäristöbiologia
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Craig Primmer @fishcongen.bsky.social · 01/10/2025
Humane genetics and genomics position in Helsinki open for 9 more days!
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Julia Kemppinen @juliakemppinen.bsky.social · 01/10/2025
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 :-)
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Mikael Niku @mikaelniku.bsky.social · 01/10/2025
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. 🧶
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Atte Harjanne @atteharjanne.vihreat.fi · 27/09/2025
Kyllä, luit oikein.
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Johanna Mappes @jmappes.bsky.social · 26/09/2025
🚂 🚂 whoop whoop! Meillä @helsinki.fi #Viikki on yliopistonlehtorin pesti auki! Vastuullasi on kehittää ja opettaa tulevaisuuden ympäristöongelmien ja luontokadon ratkaisijoita. Saa kernaasti jakaa! jobs.helsinki.fi/job/Helsinki...
jobs.helsinki.fi
Yliopistonlehtori, opetus- ja tutkimusalana ympäristöbiologia
Yliopistonlehtori, opetus- ja tutkimusalana ympäristöbiologia
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Will Allen @wlallen.bsky.social · 25/09/2025
Iliana Medina and I assembled a team of 50+ amazing collaborators inc. @jmappes.bsky.social @hannahmrowland.bsky.social hmrowland.bsky.social @facasaro.bsky.social saro.bsky.social @jtroscianko.bsky.social + many not on Bsky to run a field predation experiment across six continents. 2/6
Map showing the faces and locations of the collaborators in the globally distributed experiment.
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Functional Ecology @funecology.bsky.social · 26/08/2025
📰Published📰Diet for survival: testing the resource allocation hypothesis in an aposematic moth🦋 buff.ly/CbuRKZN 🧪🌍
buff.ly
Diet for survival: testing the resource allocation hypothesis in an aposematic moth
Emily Burdfield-Steel, Cristina Ottocento, Miriam Furlanetto, Bibiana Rojas, Ossi Nokelainen, Johanna Mappes This is a plain language summary of a Functional Ecology research article which can be f…
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Anu Lahtinen @anulah.bsky.social · 25/08/2025
Assistant professor of Urban Studies jobs.helsinki.fi/job/Helsinki...
jobs.helsinki.fi
Professor / Associate Professor / Assistant Professor of Urban Studies
Professor / Associate Professor / Assistant Professor of Urban Studies
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Ecology and Evolution of Interactions - EEI Group @aplantaginis.bsky.social · 25/08/2025
We are looking for Erasmus interns to help with our bird projects at Lammi Biological Station: www.helsinki.fi/en/research-... Apply here and specify that you are interested in the great tit project: www.lyyti.in/Application_...
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MothProf @mothprof.bsky.social · 21/08/2025
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.com
Honest signalling in predator–prey interactions: Testing the resource allocation hypothesis
Read the free Plain Language Summary for this article on the Journal blog.
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Melanie Brien @melbrien.bsky.social · 18/08/2025
For circadian clocks, colour polymorphisms and nice moths: 11am Weds in room 117 #ESEB2025
Presentation title slide with photo of wood tiger moths
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Melanie Brien @melbrien.bsky.social · 18/08/2025
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!
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Christos C. Ioannou @ccioannou.bsky.social · 06/08/2025
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
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University of Helsinki @helsinki.fi · 07/08/2025
"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.fi
Rehtori Sari Lindblom: “Satojen miljoonien yliopistoleikkauksilla Suomi uppoaisi vain syvemmälle suohon” | Helsingin yliopisto
Valtiovarainministeriön ehdotus valtion vuoden 2026 budjetiksi julkaistiin 6. elokuuta. Esitys sisältää mittavia, satojen miljoonien leikkauksia yliopistojen, tutkimuksen ja innovaatioiden rahoituksee...
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Marie C. Nordström @marienordstrom.bsky.social · 31/07/2025
Job! Apply!
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Ville Niinistö @villeniinisto.vihreat.fi · 18/07/2025
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.
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Johanna Mappes @jmappes.bsky.social · 11/07/2025
Came back from the field to find the lab had a new interior design feature—tiger moth mating boxes! Huge thanks to my amazing students and postdocs for keeping everything running. #TigerMoths #Fieldwork #Labwork @aplantaginis.bsky.social
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Petra Korlević @petrathepostdoc.bsky.social · 07/07/2025
You want to collect insects (and maybe other arthropods) for reference genome sequencing, but don't want to spend a fortune on dry ice shipping! All you gotta do is SQUISH. THAT. BUG! More details in our recent preprint: www.biorxiv.org/content/10.1...
a silly #SciArt redraw of the squish that cat meme, but it is a grey stickfigure squishing a mosquito (that looks like a little cat) with the text SQUISH THAT BUG!
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Johanna Mappes @jmappes.bsky.social · 07/07/2025
Tärkeä ulostulo Opetusministeri Anders Adlercreutz’lta! www.hs.fi/paakirjoituk...
hs.fi
Vieraskynä | Tutkimuksen vapaus ei ole sattumaa – eikä silmänlumetta
Tutkimuksen sisältöä ei pidä alistaa poliittiselle ohjaukselle. Vain siten varmistamme, että tutkimus luo uutta ajattelua, tietoa ja toimintaa.
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Kerttu Kotakorpi @kerttukotakorpi.bsky.social · 30/06/2025
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.fi
Toholammilla on suo, jollaista ei pitäisi olla olemassa
Suomen soille ei pitänyt enää kaivaa yhtään ojaa, mutta paikkatiedot osoittavat, että niin silti tapahtuu. Kävimme suolla, joka ojitettiin hiljattain.
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Johanna Mappes @jmappes.bsky.social · 25/06/2025
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❤️‍🩹
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Bibiana Rojas @biobiiana.bsky.social · 20/06/2025
This study shows some of the work done over the years in 🇬🇪 with some of my fav Finns (@jmappes.bsky.social O. Nokelainen, J.Valkonen), @crisottocento.bsky.social 🇮🇹, Tamar Chunashvili 🇬🇪 & Tõnis Tasane 🇪🇪. The genomics work was led by J. Galarza 🇲🇽 & @melbrien.bsky.social + @chrisjiggins.bsky.social 🇬🇧
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Stephen Montgomery @ebablab.bsky.social · 04/06/2025
🚨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
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Jussi T. Eronen @jussiteronen.bsky.social · 30/05/2025
Siis tämä ei olekaan lisärahaa, vaan 100 miljoonan siirto joltain toiselta sektorilta. Ei kuulosta hyvältä...
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Suvi Ruuskanen @suviruuskanen.bsky.social · 18/05/2025
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.com
Postdoctoral Researcher: Contribution of genetic background and gut microbiome on thermal physiology
A 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...
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EvolDir @evoldir.bsky.social · 29/05/2025
Apply for a postdoctoral position in Plant Chemical Ecology at the Czech Academy of Science, focusing on phytochemical diversity and plant-insect interactions. Deadline: June 25, 2025. More info: www.volflab.com #postdoc
volflab.com
VOLF LAB
Laboratory of Evolutionary Ecology has a broad conceptual focus on trying to understand how extant diversity has been driven through ecological interactions over evolutionary time.
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Johanna Mappes @jmappes.bsky.social · 28/05/2025
Always bittersweet when a brilliant postdoc leaves the lab @aplantaginis.bsky.social . It would be even sadder if they didn’t move on—but still, we miss you terribly already, Cristina! Good luck for your new position! They are so lucky to have you. 💛 Go shine! #academiclife #postdocfarewell
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Royal Society Publishing @royalsocietypublishing.org · 06/05/2025
New #RSOS paper investigating chemical defences and visual signals in a wasp #moth. Read more: royalsocietypublishing.org/doi/10.1098/... @hannahmrowland.bsky.social @amatageorgeii.bsky.social @liisahamalainen.bsky.social @kateumbers.bsky.social @mherberstein.bsky.social @jmappes.bsky.social
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Tuomas Aivelo @aivelo.bsky.social · 01/05/2025
Kaunis ja osuva muistokirjoitus Sonjalle. Kepeät mullat - ja kiitokset @kokkonut.bsky.social, @jmappes.bsky.social ja Anu-Katriina kirjoituksesta. www.hs.fi/muistot/art-...
hs.fi
Muistokirjoitus | Eläinten sosiaalisuuden tutkija, joka rakasti tanssia
Sonja Koski 1973–2025
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