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Tuomas Aivelo

@aivelo.bsky.social
952 followers 188 following 156 posts

Assistant professor in science communication with emphasis at biodiversity & society at Leiden University Academy Research Fellow leading Helsinki Urban Rat Project at University of Helsinki

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Reposted by Tuomas Aivelo
Helsinki Urban Rat Project @helsinkirats.bsky.social · 30/09/2026
Syksy tulee ja niin tulevat rotatkin! Tutkijamme Santtu Pentikäinen puhuu Yle Uutisille rotista ja jätteistä. yle.fi/a/74-20247778
yle.fi
Ratikkatyömaa toi rotat Paavo Poikosen pihalle – tutkija: Rottia kannattaa torjua ennen kuin niistä tulee ongelma
Rottien määrään vaikuttavat sää, kaupunkirakenne ja asuinalueen varallisuus, mutta ennen kaikkea paikallisten ihmisten toiminta, tutkija sanoo.
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Tuomas Aivelo @aivelo.bsky.social · 31/07/2026
Suomessa on ensimmäisen kerran havaittu afrikkalaista sikaruttoa (jonka aiheuttaa ASF-virus) villisioissa. Ensimmäistä tapausta on odotettu, ja Vaalimaa on ehkä odotetuin paikka: Venäjän puolella tätä on ja villisiat liikkuvat rajan yli. www.ruokavirasto.fi/elaimet/elai... Pieni ketju ASF:stä:
ruokavirasto.fi
Afrikkalaisesta sikarutosta on tehty löydös Kaakkois-Suomessa
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Tuomas Aivelo @aivelo.bsky.social · 03/07/2026
At conferences, especially when not sure how good match the session is, I am like an ant: drawn towards electric sockets.
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Elin Videvall @elinvidevall.bsky.social · 03/07/2026
I've sometimes wondered if there are additional reasons why bacteria thrive inside mammal guts, and this is a fascinating answer to that question. 👀
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Suvi Sallinen @suvisallinen.bsky.social · 03/06/2026
Rohkeita rottia viimeöisessä näytteenottokohteessa! Kolmas ja viimeinen aineistonkeruukesä käynnissä 🌞 Brave rats at our sampling site last night! Our third and final data collection summer has begun 🌞
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Tuomas Aivelo @aivelo.bsky.social · 29/06/2026
This week at @pollenetwork.bsky.social conference in Barcelona and figuring out whether political ecologists are a group that I would like to hang out with! I'm giving a talk in Wednesday second session on rats and waste citizenship: nomadit.co.uk/conference/p...
nomadit.co.uk
Rat as an indicator species for waste infrastructure and good waste citizens
Rats are the ultimate waste animal/animal waste as they depend on human waste streams. In fact, they thrive on our waste streams so well, that they are
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Tuomas Aivelo @aivelo.bsky.social · 12/06/2026
Dutch Research Council has funding for outside-of-the-box ideas and they want two-minute videos to summarize the projects. Well, happy to oblige! I'm one of the finalists pitching at Teknowlogy innovation festival next Thursday! www.teknowlogy.nl/programme-it...
youtu.be
Dustbag Metabarcoding: Citizens as active samplers of home biodiversity | dr. T.J.E. Aivelo
YouTube video by NWO Wetenschap (Videos)
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Ákos T Kovács @evolvedbiofilm.bsky.social · 29/05/2026
@aivelo.bsky.social (from Institute of Biology Leiden) at #NWOLife2026 on Rodenticide use potentially affects zoonotic dynamics in urban rodents: findings from brown rats in Helsinki, Finland
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Tuomas Aivelo @aivelo.bsky.social · 21/05/2026
What studying rats in Helsinki has taught me? At least that Helsinki is not New York, apparently. Always happy to talk about rats and this time with Deutsche Welle Living Planet podcast! The episode can be found in: www.dw.com/en/rats-revi... and all your regular podcast services.
dw.com
Rats, revisited
We thought we were done talking about rats. Then your questions came in. From plague myths to poisoned predators, population growth and climate change to urban allotment gardens in Helsinki, this bonu...
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Tuomas Aivelo @aivelo.bsky.social · 07/05/2026
Rather surprisingly, Leiden seems to be at the center of hantavirus news. Yesterday BBC News reporter was doing a live broadcast outside of our hospital.
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Michael Parsons | CUES: City Rat Research @urbanrodentology.bsky.social · 27/04/2026
Our latest research shows that wild mice don’t exhibit strong fear responses to native predator scents when food motivation is high. Ecological context shapes risk-sensitive behavior more than we expected. www.nature.com/articles/s41... #UrbanEcology
nature.com
Buffering effects of shelter and palatable foods mitigate fear responses in foraging wild mice - Scientific Reports
Animal responses to fear cues are shaped by competing motivations such as hunger, access to mates and safety. In our previous work, wild mice (Apodemus spp.) showed little reaction to non-native preda...
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Colin Carlson @colincarlson.bsky.social · 09/04/2026
New in @science.org ‼️ In the most comprehensive study to date, we show that wildlife trade is driving animal-to-human zoonotic spillover at a planetary scale, with +1 spillover per host every 10 years. Live animal markets and illegal trade pose even greater risks. 🔓 www.science.org/doi/10.1126/...
Wildlife trade drives animal-to-human pathogen transmission over 40 years
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Helsinki Urban Rat Project @helsinkirats.bsky.social · 10/04/2026
Tiistaina Keskusteluja Kontulassa -sarjassa puhutaan rotista kaupunkieläiminä - tervetuloa Kontulan kirjastoon 14.4.! helmet.finna.fi/FeedContent/...
helmet.finna.fi
| helmet.fi
Varaa ja lainaa aineistoa Helsingin, Espoon, Vantaan ja Kauniaisten kaupunginkirjastoista kätevästi verkossa. Tutustu kirjaston palveluihin ja hyödynnä kirjaston laajaa kirjojen, elokuvien ja muiden sisältöjen valikoimaa.
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Helsinki Urban Rat Project @helsinkirats.bsky.social · 07/04/2026
Shortly: Method works and Helsinki rats have 13% positivity rate which is high compared to other screened pathogens. So what? Difficult to say as zoonotic risks of (para)jeilongviruses are unknown, though paramyxoviruses are known to switch host species. Clinical consequences to rats? No idea.
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Helsinki Urban Rat Project @helsinkirats.bsky.social · 07/04/2026
🚨 New paper 🚨 Colleagues from Sironen & Jääskeläinen lab's developed a pan-jeilong-RT-qPCR for jeilong- and parajeilongvirus detection and used it on our rats and other Finnish and Latvian wildlife. Congrats and thanks Emilia for the paper! Link to the paper: doi.org/10.1016/j.jv...
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Tuomas Aivelo @aivelo.bsky.social · 27/03/2026
"We think of nature as somewhere else, outside our homes. But we are nature. This perspective encourages us to rethink everyday interactions with spiders, mice, snails, and garden wildlife", I say in a newspiece for @unileiden.bsky.social www.universiteitleiden.nl/en/news/2026...
universiteitleiden.nl
Never home alone: which species share your house (unwanted or not)?
From spiders in the bathroom to mice in the kitchen, we share our homes with far more species than we realise (whether we like it or not). Researchers at Leiden University and the University of Helsin...
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Tuomas Aivelo @aivelo.bsky.social · 27/03/2026
We verzamelen verhalen over hoe Nederlandse mensen samenleven thuis met niet-menselijke huisgenoten - deel ook jouw verhaal!
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Jennifer Ouellette @jenlucpiquant.bsky.social · 03/03/2026
Meet three scientists who said no to Epstein. The warning signs included a web search, a mother’s doubts, and inklings of a “sexist attitude” www.science.org/content/arti...
science.org
Meet three scientists who said no to Epstein
The warning signs included a web search, a mother’s doubts, and inklings of a “sexist attitude”
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Sarah Hörst @planetdr.bsky.social · 04/03/2026
One of the things I least anticipated about being a lab PI is how often it appears to be actually impossible to exchange money for goods.
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Tuomas Aivelo @aivelo.bsky.social · 04/03/2026
Tällä viikolla on puhuttu paljon koronapandemiasta ja kirsikaksi kakun päälle - tai pääruuaksi alkupalojen jälkeen - Koronapandemian hallinta ja saadut opit Suomessa -raportti julkaistaan tänä perjantaina klo 13 alkaen webinaarissa. Ilmoittautuminen ja lisätiedot: sites.utu.fi/pandemianopi...
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Erik Postma @erikpostma.bsky.social · 02/03/2026
We already have more than 💯 participants for #ExE2026, but there are still places available. Once you have registered, you have until April 1 to submit an abstract, so don’t miss out and register now at sites.exeter.ac.uk/exe/registra... Everything you need to know is 👇 and at evoxeco.uk!
sites.exeter.ac.uk
Registration
To register for ExE 2026, visit the conference web shop by clicking the Register button below. We also ask you to register for free events to get an overview of the number of participants. Capacity
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Tuomas Aivelo @aivelo.bsky.social · 02/03/2026
Kun nyt taas mediassa jaellaan käsityksiä, että (hengitystie)tartuntatautien sairastaminen on hyvästä, koska sitten sairastaa vähemmän tartuntatauteja, niin ehkä on hyvä muistuttaa: paitsi että logiikka on omituinen, sillä ei myöskään ole tieteellistä pohjaa. www.hs.fi/mielipide/ar... Ketju: (1/11)
hs.fi
Lukijan mielipide | Infektiot eivät katoa maailmasta, mutta niiden kanssa voidaan elää
Infektiot ovat olennainen osa ihmiselämää ja niiden torjunta vaatii harkintaa.
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Erica von Essen @ericavonessen.bsky.social · 27/02/2026
Colleagues are in their rat era: would you be interested in a PhD on the social sciences of the human-rodent-disease interface? www.inn.no/english/rese... @aivelo.bsky.social
inn.no
Farmer Health: Assessing Risks and Mitigation Strategies for Rodent-borne Zoonoses in Food Production under Climate Change - University of Inland Norway
RoBoZoo is an interdisciplinary project that investigates the interactions between small rodents and humans to understand how they are influenced by climate change and agricultural practices, how this...
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Tuomas Aivelo @aivelo.bsky.social · 20/02/2026
"Epäily on, että rotta viettää aikaa edelleen pullavitriinin alla." Jos luulee, että hygge on vain tanskalaisten omaisuutta, ei ole tutustunut tuholaistorjujien kohdemerkintöihin.
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Tuomas Aivelo @aivelo.bsky.social · 19/02/2026
Ilo työskennellä Juhan kanssa @helsinkirats.bsky.social! Oli isompi vaikutus hankkeen ja oman tutkimukseni suuntaan kuin etukäteen oletimme. ”Mä teen yhtä ja samaa elokuvaa koko ajan -- vaikeudesta ja toiveesta löytää yhteinen kieli ihmisen ja eläimen välille.” suomenkuvalehti.fi/paajutut/tuo...
suomenkuvalehti.fi
Tuore tassunjälki hangessa – ainakin yksi Urjalan susi on jahdin jälkeen hengissä
Dokumentaristi ja metsästäjät kulkivat samoilla jäljillä. Riistakameran videokilipeistä syntyy elokuva, jossa sudet yhä elävät.
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pikaole @pikaole.bsky.social · 10/02/2026
Bees 🐝
This art features 100 bees of various colors and shapes.
These bees are designed in a cartoonish style, based on real species. The common name or species is written below the animals.
Some bees are moving leaves, scraping plant hair, or sticking out their tongues. Some male bees have hairy faces and unusually shaped legs. There are also baby bees that have just hatched from their petal nests.  Cute and colorful atmosphere. There are over 20,000 species of bees, so I only depicted a very small fraction of them!
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Helsinki Urban Rat Project @helsinkirats.bsky.social · 09/01/2026
Tutkijamme Santtu Pentikäinen vei Apun toimittajan tutustumaan hankkeemme kenttätöihin roskakatoksiin ja takapihoille - ja tästähän tulikin elämän (ja kuoleman)makuinen juttu! www.apu.fi/artikkelit/r...
apu.fi
Ensin katamme rotille buffetin, sitten myrkytämme – Seurasimme tutkijaa, joka haluaa katkaista ”julman kierteen”
Helsingissä on tutkittu kaupunkirottia jo vuosia. Ekologi Santtu Pentikäinen kiertää itähelsinkiläisiä roskakatoksia osana tätä tutkimusta.
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Stephen Heard @stephenbheard.bsky.social · 08/01/2026
This is an interesting article - but it buries FAR too deeply the important idea that new tech can make the field accessible to people who cannot, for various reasons, participate in field work. It's there - but gosh it's buried deeply!
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Tuomas Aivelo @aivelo.bsky.social · 12/12/2025
All signs are there for Great Rodent Uprising of 2026! First there was this guy (or girl) moving into our kitchen:
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Tuomas Aivelo @aivelo.bsky.social · 12/12/2025
Sun is apparently shining in Helsinki as the local newspaper has a live stream on it. Also, I use this screen capture to show my Dutch colleagues that that's what midday sunshine in Finland means during wintertime.
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Ellis Rosen @ellisjrosen.bsky.social · 08/12/2025
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Tuomas Aivelo @aivelo.bsky.social · 31/10/2025
"Koronapandemia muutti, miten ajattelemme hengitysteissä esiintyvien taudinaiheuttajien leviävän. Ilman kautta tapahtuvaa altistusta ei nähdä enää harvinaisena, --" Ensihavaintoja Pandemiakriisin opetukset -hankkeesta ymmärryksemme muutoksesta kriisitilanteessa: tietokayttoon.fi/-/pisaroista...
tietokayttoon.fi
Pisaroista pienhiukkasiin: Pandemia muutti ymmärryksen infektioiden leviämisestä
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Tuomas Äystö @tuomasaysto.eurosky.social · 29/10/2025
Käytännössä ainut tapa myydä soiden ennallistaminen suomalaisessa politiikassa: sano, että ne hidastavat venäläisiä tankkeja.
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Helsinki Urban Rat Project @helsinkirats.bsky.social · 10/10/2025
Tutkijamme Santtu Pentikäinen kertoi rottien syksystä Viiden jälkeen -ohjelmassa: www.mtvuutiset.fi/videot/video...
mtvuutiset.fi
Rotat liikkuvat syksyllä
Rotat liikkuvat syksyllä.
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Tuomas Aivelo @aivelo.bsky.social · 30/09/2025
Just out of press: genetic characterization of rat hepatitis E virus in Helsinki rats in Archives of Virology! link.springer.com/article/10.1... Earlier we reported that we found RHEV in four of our rat carcasses (prevalence of less than 2%) and now we have complete or partial genomes for these.
link.springer.com
Genetic characterization of rat hepatitis E virus (Rocahepevirus ratti) in urban brown rats (Rattus norvegicus) in Helsinki, Finland - Archives of Virology
We report complete and partial genome sequences of rat hepatitis E virus (RHEV, Rocahepevirus ratti), from archived brown rats captured in Helsinki, Finland. Phylogenetic analysis confirmed the presence of the pathogenic RHEV genotype C1 in the Helsinki region. Finnish strains clustered together with strains from South Korea and Spain. However, the polytomous topology of phylogenetic trees and the large genetic distances between spatially distinct strains suggest that RHEV has remained inadequately sampled on a global scale. Further surveillance of rocahepeviruses is needed to assess their threat to public health and to understand their diversity and evolutionary patterns.
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Tuomas Aivelo @aivelo.bsky.social · 24/09/2025
🚨New paper out today: ‘This place cannot be tidied up!’ Stigmatisation, rats, and place-making in a multispecies city🚨 The paper led by Riikka Hohti out today in Children's Geographies: doi.org/10.1080/1473... A short thread: (1/5)
doi.org
‘This place cannot be tidied up!’ Stigmatisation, rats, and place-making in a multispecies city
This paper presents a multidisciplinary research project which invited young people to critically re-estimate what is environment and nature, and for whom, in the urbanising world. We describe a se...
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Tuomas Aivelo @aivelo.bsky.social · 19/09/2025
‘Ik ben ecoloog, dus ik probeer ratten niet te zien als een plaagdier.' Ik weet dat dit provocerend klinkt, want ecologen zijn goed in het beoordelen (en doden) van andere dieren. Mare interviewde mij over ons rattenonderzoek en het samenleven met vervelende dieren: www.mareonline.nl/wetenschap/r...
mareonline.nl
Plaagdieren? Welnee! Ratten zijn onze vrienden, betoogt Finse ecoloog
Mensen kunnen vreedzaam samenleven met ratten, betoogt ecoloog Tuomas Aivelo. ‘We geven gemengde signalen af.’
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Anna-Liisa Laine @annaliisalaine.bsky.social · 03/09/2025
🚨 Postdoc opportunities! 🚨 We’re looking for postdocs in 🌿 biodiversity science, 🧬 genetic indicator assessment, and 📊 ecological statistics. Join us in unraveling the drivers & consequences of global change on biodiversity — and be part of a supportive & collaborative environment! DL 24 September
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Demetre Daskalakis @drdemetre.bsky.social · 28/08/2025
Enough is enough. The health of the country is in danger. Read our resignation letters: insidemedicine.substack.com/p/breaking-n...
insidemedicine.substack.com
Breaking News: Read three top CDC officials' resignation emails.
The end of an era.
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Julius Lehtinen @julleht.bsky.social · 14/08/2025
Enpäs ole hetkeen hävennyt oman yliopistoni päätöksiä näin paljon.
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Tuomas Aivelo @aivelo.bsky.social · 13/08/2025
First paper from Nienke Beets on her thesis on Stoepplantjes, a pavement plant citizen science project out in Biological Conservation! Happy to be a coauthor here. www.sciencedirect.com/science/arti...
sciencedirect.com
“What's that weed on the street?” Motivation and attitude of contributors and followers in a citizen science project studying pavement plants
Plants are essential for life on Earth, yet their importance is often underappreciated. Urban flora are often dismissed as weeds, for example. One sol…
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Tuomas Aivelo @aivelo.bsky.social · 05/08/2025
"What does a pig say? In English, a pig says “oink, oink”. In Finnish, “röh, röh”. In Danish, “øf, øf”. But in the language of journalism a pig is usually silent." Happy to contribute to Anne Salomäki's project at @reutersinstitute.bsky.social! reutersinstitute.politics.ox.ac.uk/rethinking-j...
reutersinstitute.politics.ox.ac.uk
Rethinking journalism’s silence on animal agriculture
Journalist Anne Salomäki unpacks the human-centric approach when covering animal farming in the media.
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Tuomas Aivelo @aivelo.bsky.social · 22/07/2025
My first Leiden paper out now - first-authored by PhD candidate Anna Heerdink in Journal of Nature Conservation w/ Nel Ruigrok & @ionica.mathstodon.xyz.ap.brid.gy We look at how biodiversity research is presented in the Dutch print media. A short thread: (1/5) sciencedirect.com/science/arti...
sciencedirect.com
Media coverage of biodiversity research in the Netherlands: news triggers, sources, and frames
Addressing biodiversity loss requires both policy reforms and active public engagement. Media coverage plays a critical role in shaping societal aware…
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Tuomas Aivelo @aivelo.bsky.social · 18/07/2025
Voimme neuvotella rottien kanssa ja löytää uusia yhdessäelon tapoja - Karolina kirjoitti lyhyen tiivistelmän uudesta tutkimuksesta @helsinkirats.bsky.social-nettisivuille: www.helsinki.fi/fi/projektit...
helsinki.fi
Voimme neuvotella rottien kanssa ja löytää uusia yhdessäelon tapoja | Kaupunkirotat | Helsingin yliopisto
Usein suhtaudumme kaupunkeihin ihmisten tilana, johon muut eläimet tunkeutuvat. Rotat ovat eritysen epähaluttuja naapureita. Mutta voimmeko oppia elämään niiden kanssa? Voimmeko neuvotella rottien kan...
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Tuomas Aivelo @aivelo.bsky.social · 16/07/2025
🚨New paper!🚨 Can we negotiate our cohabitation with rats? Karolina Lukasik spearheaded study, which suggests there might not be alternative! Out now in a special issue on urban multispecies justice of npj Urban Sustainability: doi.org/10.1038/s429... A short thread: (1/9)
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Tuomas Aivelo @aivelo.bsky.social · 01/07/2025
🚨New research klaxon! 🚨 Out in now in Mammalian Biology, our ethology paper on social interactions between rats based on trail camera material! doi.org/10.1007/s429... A short thread: (1/6)
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Tuomas Aivelo @aivelo.bsky.social · 29/06/2025
Ready to start International Conference on Urban Pests in Lund, Sweden. So, a triptych taken during Markus Krunegård's concert in Stadsparken:
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Tuomas Aivelo @aivelo.bsky.social · 17/06/2025
Happy to talk with @politiken.dk about rats, and apparently disagree with the whole of Denmark. politiken.dk/edition/news...
politiken.dk
I've cycled through the streets with dead rats brushing against my leg. And now I'm obsessed
They live in our parks, basements, and dine with us at restaurants. Despite spending more and more money to eradicate them, Copenhagen’s rats have already won. Have we completely misunderstood the urb...
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Helsinki Urban Rat Project @helsinkirats.bsky.social · 13/06/2025
Our Karolina Lukasik will be discussing some fundamental questions today in BBC Radio Scotland Mornings show at around 11.30!
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Thijs Kuiken @thijskuiken.bsky.social · 22/05/2025
A new review on H5 'bird flu' is just out in @natrevmicro.nature.com: "Evolution, spread & impact of highly pathogenic H5 avian influenza A viruses" by Beatriz Bellido-Martin, Willemijn Rijnink, Matteo Iervolino, Thijs Kuiken, Mathilde Richard & Ron Fouchier, from @erasmusmc.bsky.social. A 🧵 (1/9)
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