Når man kigger på gamle landskabsfotos bliver det klart hvor voldsomt træer og buske er gået frem i det danske landskab de sidste 200 år. Der var fx helt bart på Sepstrup Sande vest for Silkeborg i 1900 da prof. Eug. Warming kom forbi med sit kamera. Fotos fundet i SNMs arkiv.

Fast-growing trees are set to dominate the #forests of the #future — but at a cost🌳 Our Nature Plants (@natplants.nature.com) study shows a global shift toward "sprinter" tree species, while slow-growing, functionally critical #trees face elevated #extinction risk. www.nature.com/articles/s41...

Were it not for the all too frequent school shootings, one could easily get the impression there are no schools in the US

🐝 We used pooled whole-genome sequencing data to reconstruct demographic history for two rare and two common wild bee species 📉 The two rare species showed lower historical population sizes than the two common species 📊 The approach was validated using simulated data doi.org/10.1111/mec....

@dittemch.bsky.social has led the digitization of the historical dot maps of plant species distribution in Denmark. After a lot of harmonization and validations, the data (10 x 10 km grid) are now out with a preprint describing the procudure. #biodiversity_change #legacy_data

Så er udkast til habitatkonsekvensvurderingen af Tangeværket ude! Tak til @Altingetdk Jeg håber du læser med, @jeppebruus.bsky.social #vildgudenå legacy.altinget.dk/misc/udkast-...

"The decline in success rates is absolutely not satisfactory, because it sometimes borders on a lottery” Nature 17 October 2025 Well, an honest lottery would IMHO be far better. For the reasons outlined here: blogs.lse.ac.uk/impactofsoci...

Hommage to Sofia Corradi, who conceived the idea of academic degrees without borders - the Erasmus Program

Pretty mindblowing!

Bumble #bee #pollination of #linden already 24.6 milllion years ago - cool new empirical illustration of the deep roots of the ecologies of modern-day species www.sci.news/paleontology... (photo 1: commons.wikimedia.org/wiki/File:Bombus_hypnorum_-_Tilia_cordata_-_Keila.jpg)

New paper alert! The EU Natura 2000 network encompasses populations of most vascular plant species in the region, but with a lot of spatial variation in representativity. The results provide guidance for for better coverage after the planned network expansion. doi.org/10.1111/cobi...

The new European Butterfly Red List is published today, with worrying findings. Over 1/4 (28%) of Europe’s 442 species are threatened with extinction or are close to being so. The situation is far worse for our 148 endemic species, 40% are now threatened or nearly so www.bc-europe.eu/webpage.php?...

Random street corner in Leuven BE #stopgenocide

📢 Vacancy: I am urgently recruiting a PhD candidate to join a project on selection processes in pedunculate oak. 📅 Start date: no later than December 1st.

Nativeness cannot be binary, if is to make sense and be practically applicable at the scale of countries. We propose a graduated definition, in which species native to neighbouring territories are considered "near-native" doi.org/10.1002/oik....

"We show that unmanaged forests are the backbone of biodiversity conservation ... We conclude that to preserve forest biodiversity in Europe, we should increase the proportion of unmanaged forests and the amount of structures supporting biodiversity in extensively managed forests.

Just out in PNAS! We used multi-taxon data to model virtual forest landscapes. Forest withdrawn from timber harvesting are needed in a much higher share than they currently are in Europe, and extensive forests contribute less than expected to multi-taxon diversity. www.pnas.org/doi/10.1073/...

Besser kann man es nicht zusammenfassen

Sweden and Finland have increased logging levels to such a point that their forests are now a net source of emissions. Their Prime Ministers are asking to be exempt from EU #Climate target so that they keep going. Oh and they blame climate change. #NoShame #Forests

Disturbing citation In 2022, we published a study on *consumers*, i.e. animals and fungi that consume biomass produced by other organisms, e.g. plants. Now, our paper has been cited in what claims to be a metaanalysis of "Consumer Satisfaction in Live Streaming E-commerce". Far out!

New gall mite species, Fragariocoptes tridentatae Ripka & H.H.K.Bruun, which I found last summer during field work in southern Greenland. It induces really conspicuous galls on Sibbaldia tridentata doi.org/10.11158/saa... It's a 100% bycatch, but I love it anyway 😍

Minst 18 500 barn har dödats i Gaza sedan Israel inledde sitt försök att utrota den palestinska befolkningen. Washington Post har samlat och publicerat deras namn: www.washingtonpost.com/world/intera...

We followed primary succession of arbuscular mycorrhizal fungi on a man-made island, Peberholm, 2010-2016. AMF communities diversified through more and more deterministic processes. They remained less diverse than on nearby island Saltholm. eur02.safelinks.protection.outlook.com?url=https%3A...

More spring flowers 🤩 # Stenshuvud Nationalpark

Springtime 😍

Names and faces of children killed in Israel's latest offensive. At least 183 Palestinian children have been killed since Tuesday morning. www.middleeasteye.net/news/gaza-na...

Danmarks strategi for bæredygtig energi bygger i høj grad på biomasse. Det er et blålys, fordi det ikke mindsker udledningen af kuldioxid. Og så har det den uheldige bivirkning, at det skaber økonomisk incitament til at ødelægge naturskove i hele verden - også i DK. Det sker med åbne øjne. #dkpol

JOB ALERT! Postdoc opening in the use of geodata to guide the transition of land-use in Denmark to sustainability. Main collaborators: Martin Rudbeck Jepsen at Geography/UCPH and Hans Henrik Bruun at Biology/UCPH candidate.hr-manager.net/ApplicationI...

Flower bud galls on fireweed (Epilobium angustifolium) were found in Alaska, begging the question whether they ware due an unknown North American gall maker or the circumboreal distribution of the gall midge Dasineura epilobii, widespread in the Palaearctic 🦟 The answer ⬇️ bioone.org/journals/pro...

Stephen Fry: "I'm deeply worried by the darkening shadow that's going over the world, the shadow we have to call fascism... it's a cult of power..."

Bullshit sensu Harry Frankfurt

Ulven kommer: Men er der grund til at frygte den? #dkvid #dkforsk

We have a moth project to build #moth database on #iNaturalist for 🇸🇬 & 🇲🇾! Moths are understudied, so we need your help! 📸 If you’ve taken moth pics, upload them to iNaturalist (use Singapore/Malaysia if unsure of location) or email us (see poster) with your name for credits 😇

Evidence of Holarctic distribution: common frog Rana temporaria eggs in Fennoscandia host photosymbiotic green algae (Oophila sp.) https://doi.org/10.1111/oik.10752 #Amphibia #Frog #Algae #Ranatemporaria #Oophilaamblystomatis #Photosymbiosis

‘Cybertruck Man’ a cartoon in defiance of Musk #political #cartoonist #cybertruck #elon #musk #democracy #tiananmen

According to @thatsregrettab1.bsky.social, “Science is self-correcting... after you beat it with a stick, electrocute it, draw and quarter it, and then burn it at the stake.” I think this is an overly optimistic assessment of the current state of science. (1/n)

#ShiftingBaselines and the forgotten giants: integrating megafauna into plant community ecology🦣🌿 With #megafauna lost, have we built #ecology on already-degraded ecosystems? Led @skjoldsoendergaard.bsky.social as part of his thesis - well done! doi.org/10.1111/oik.... #theory #rewilding #vegetation

Thanks to the more than *1100* members of the scientific community who have signed the letter to insist that the Royal Society remains true to values that we all hold dear but that Musk FRS has ridden roughshod over. Please keep signing & sharing. docs.google.com/forms/d/e/1F...

The gall midges and their parasitoids are hyperdiverse, yet insanely understudied, thus "double dark taxa". Nice to see @parasitoidrex.bsky.social's work on Platygatrinae shedding a ray out light into pitch darkness. Chapeau!

This Bombus terrestris is hanging from the flower of the stinking hellebore by the hooked ends of her legs. When I look at the shape of claws at the end of bees' legs and how they use them, always comes to my mind how similar they are to ice axes - which mountaineers use for the same purpose

"God" must have had a inordinate fondness of gall midges, or Diptera at large. Less than 1% of the 98,472 BOLD (www.boldsystems.org) barcode BINs for Cecidomyiidae can be associated with a valid taxon name. >99% probably represent undescribed species. Mindblowing diversity 🤯 doi.org/10.1146/annu...

Scherer et al. påviser en klar præference hos sjældne pletvinger i Hainich Nationalpark for områder gennemrodet af vildsvin! Samme mønster i min vilde have: Blåfuglene foretrækker åbenlyst lav og åben vegetation. I DK udryddes vildsvin per dekret 😒. #dkpol www.sciencedirect.com/science/arti...

Ecosystem engineers at work, providing ecosystem services ... "Gnawing through tree trunks and bureaucratic red tape alike, a colony of Czech beavers recently built a dam exactly where local administrators needed it." www.goodnewsnetwork.org/while-a-czec...

Very cool way to use pollen analysis 🙂 - as a supplement to tracking devices

Europæiske regeringer må spørge sig selv fremover: hvad gjorde vi reelt for at forhindre etnisk udrensning i Palæstina ?

Der cirkulerer så mange falske historier om Røde Kors indsats i Gaza/Israel. Er du interesseret i sandheden, så læs her: t.co/L9lfN3LNfI

Clear on disease risks of feeding but no mention of key issue - feeding widespread common birds for our pleasure, likely key driver of decline of rare specialist Marsh Tit & Willow Tit. #ornithology www.theguardian.com/environment/...

📅Check out the NJB January issue! While we are getting back to work, there are 10 fantastic papers you can read meanwhile. On the cover, the orchid Liparis loeselii from the paper by Andersen et al. Photo credit: Erik Vinther https://vist.ly/3mshe2q @nordicoikos.bsky.social

Gaza er reelt jævnet med jorden. Ubeboelig. Når man ser disse billeder er det svært at frigøre sig fra tanken om at tæppebombardementerne, der også har kostet titusindvis af dødsofre, er et led i en gennemtænkt plan om etnisk udrensning 🕊️

4-year timelapse of a sneezing sponge? Great way to start #porifera in #ZOO2700! Belinda the sea #sponge & fantastic work by #UVIC grad student Dominica Harrison. Listen to the #CBC As It Happens #AIH interview too! www.cbc.ca/radio/asitha... doi.org/10.3354/meps... youtu.be/78-PI6pSsvs?...