Interested in evolution and marine biodiversity. Research on Acoelomorpha. Professor of Invertebrate Zoology at the Swedish Museum of Natural History.
Uppsala - Stockholm
Joined March 2009
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Ulf Jondelius retweeted
This book from the 19th century depicts the Rhine Valley by creating an impression of three-dimensionality and spatial distance
Ulf Jondelius retweeted
Seriously, what do you think are the long term prospects for a species that routinely engages in such pointless atavistic savagery against the living world – and one another?
(Faroe Islands, yesterday)
#WormWednesday Aphanostoma virescens, an Acoela species from shallow waters at the Swedish west coast. Seen in July 2024 dropbox.com/scl/fi/icop5eato…
Ulf Jondelius retweeted
aggressive reminder that insects, fairy shrimp, remipedes, and now copepods too (!!!) are a clade of crustaceans called Allotriocarida or literally "weird shrimp". Bugs is shrimps, by definition
Very excited to share our new paper on Pancrustacean Phylogeny with a number of surprising findings! 🧵 academic.oup.com/mbe/article…
Ulf Jondelius retweeted
Best practices in #taxonomy are critical for addressing the current #biodiversitycrisis. Taxonomy needs to be rebranded to the scientific community as a modern, active and important discipline with sufficient funding and taxonomic researchers. #Entomology #Zoology #Museums
Want to work with marine meiofauna diversity and do a lot of fieldwork? Fully funded PhD available in Stockholm! Closing date is 15 June. Hurry up and apply here: recruit.visma.com/spa/public…
Ulf Jondelius retweeted
Dear Members of the European Parliament,
tomorrow all eyes will be on you.
Tomorrow, like always, decency and honesty matter!
Tomorrow, every single vote, even a single vote matters.
Please don't fall victim to the corrosive bitterness of one man.
Please vote to #RestoreNature
Thank you for inviting me! It was a wonderful experience. The project and all the student posters is truly impressive.
...& yesterday @ulfjo addressed 300 school students in the main auditorium of @upvehu in Bilbao with the outreach & citizen science project @EzNazazuZapaldu of @pie_upvehu
Imagine talking to 11-16 y. old students about Acoelomorpha. Wonderful outcome of a @EMBRC_EU TA project
Ulf Jondelius retweeted
Retweet to join us in celebrating our Ally 🇱🇹#Lithuania on their State Restoration Day!
🤝 #WeAreNATO
For next #wormwednesday here is Simplicomorpha gigantorhabditis from the tidal beaches of Texel. Here at @Naturalis_Sci looking for #meiofauna with @UllAmartinez @inir725 @EleniChri_ @FrancescaLeasi and colleagues. Thanks to @JNMScience for organising.
For this #wormwednesday evening we have Prorhynchus, a freshwater flatworm that uses its penis stylet (here near the front) as a harpoon to catch prey. The stylet injects poison into the prey. The mouth and stylet share opening - further back the pharynx can be seen.
Ulf Jondelius retweeted
y piensan en los pajaros! Agua en los techos! #rooftop gardens
Pseudmecynostomum bruneofilum a long and slender acoel from the North Sea. It is unusually densely pigmented for an acoel and you can see the hexagonal borders between epidermal cells in the anterior (left) part #WormWednesday.
Anaperus tvaerminnensis is a voracious predator feeding on various small Invertebrates including other Acoela, as can be seen in this photo. The statocyst of the prey is still visible. #WormWednesday – at Heligoland, Germany
