Han Olff

Advancing the mapping of vegetation structure in savannas using Sentinel‐1 imagery As vegetation structure monitoring is important for the understanding and conservation of savanna ecosystems, we explored the utility of C-band synthetic aperture radar imagery for mapping both grass...

New paper out led by Vera Thijssen of @unigroningen.bsky.social : Advancing the mapping of vegetation structure in savannas using Sentinel-1 imagery #Serengeti #Mara #savanna #conservation zslpublications.onlinelibrary.wiley.com/doi/10.1002/...

Trump seeks to end climate research at premier U.S. climate agency White House aims to end NOAA’s research office; NASA also targeted

BREAKING from @science.org: The Trump admin is seeking to kill nearly all climate research at NOAA, its climate science agency.

Its near-final budget proposal would end all NOAA research labs, academic institutes, and regional climate centers. And it wants to fully end the NOAA Research division.

Join the CurveBend Project! We're hiring 8 PhDs and 2 Postdocs to promote biodiversity restoration in 4 countries worldwide - positions open for application until 13-Feb-2025

Duizenden kalveren in Nederland uit Duitse deelstaat met MKZ-besmetting Sinds 1 december zijn zeker 3600 kalveren naar Nederland gekomen vanuit de Duitse deelstaat Brandenburg, schrijft minister Wiersma in een brief aan de Kamer.

3600 kalveren in Nederland uit Duitse regio met #MKZ besmetting. Gesleep met dieren, betekent ook gesleep met ziektes... nos.nl/artikel/2551...

1/ I'm constantly amazed at the naivety of so much of conservation science (& other mission-driven disciplines)

As if all we have to do is generate the evidence and society's leaders will use it to do what's needed

As if there's no-one trying to make sure that doesn't happen

New paper! @jappliedecology.bsky.social
https://bit.ly/3C5gYJp
We mapped out the migrations of over 10K ind ⚫-tailed godwits (!) to characterize connectivity between sites in Europe and Africa.
We compiled tracking data, ring recoveries and resightings: >400K records in total! (1/5)

🐝Doe mee met onderzoek naar gif in bijen🐝
Wat doen pesticiden met onze wilde bijen? Dat onderzoeken de Bijenstichting en Pesticide Action Network Netherlands. En daar hebben ze jouw hulp bij nodig (1/2)👇🏾

Vacature projectmedewerker Het Groene Woud Voor gebiedsprogramma Het Groene Woud zoekt ARK een projectmedewerker natuurontwikkeling (4 - 5 dagen per week).

Hé, pssst, we zoeken een collega voor de natte leembossen in het Brabantse arkrewilding.nl/nieuws/2025/...

Bye X 👋🏼

Dutch science foundation NWO drops X.

Reason: “public discourse on X is increasingly characterized by the spread of misinformation and hate speech”

NWO will use their website, newsletter and LinkedIn for announcements.

#AcademicSky

www.nwo.nl/en/news/nwo-...

Vikingzwaarden, journalistieke scoops en cholera: de RUG-Geodienst bestaat 10 jaar! 🎈

Hun posts gaan regelmatig viraal op sociale media: 'We vallen op via deze kanalen, en daardoor weten ook journalisten ons te vinden.' 💡

Lees meer en bekijk prachtige voorbeelden 👇
www.rug.nl/about-ug/lat...

Doggerland en ARK stappen naar de rechter voor rust en ruimte op de Doggersbank Doggerland en ARK stappen naar de rechter voor bescherming van de Doggersbank: een natuurgebied in de Noordzee. Bodemrust is essentieel voor de natuur daar.

arkrewilding.nl/nieuws/2025/... Het werk van ARK op de Noordzee heeft alleen zin als er voldoende rust en ruimte is. Daarom eist ARK, met St Doggerland, dat de overheid zich aan haar eigen regels gaat houden: het Nederlandse deel van de Doggersbank moet op slot voor sleepnetvisserij.

Experimental evidence of the role of nitrogen for eutrophication in shallow lakes: A long-term climate effect mesocosm study The effectiveness of controlling nitrogen (N) loading (in addition to phosphorus [P]) to manage the eutrophication of aquatic ecosystems has been debated despite the role of N in producing algal biomass and toxins. Long-term, controlled tests of the efficacy of N loading reductions are largely missing from the scientific record, perhaps due to the historical focus on P control. To address this knowledge gap, we examined the results from a unique, long-term study conducted in 24 flow-through (2.5-month retention time) lake ecosystem-scale mesocosms in Denmark, operating since 2003 at two contrasting nutrient loading levels crossed with three temperature scenarios (ambient, IPCC (Intergovernmental Panel on Climate Change) A2 scenario, and A2+50%).

Experimental evidence of the role of nitrogen for eutrophication in shallow lakes: a long-term climate effect mesocosm study

Erik Jeppesen, Hu He, Martin Søndergaard, Torben L. Lauridsen, Thomas A. Davidson, Eti E. Levi & Mark J. McCarthy

YouTube video by Gauging Gadgets How to Delete Facebook Account Permanently on Desktop, Laptop, Mac, or Chromebook

True to its long history of exploitation and obfuscation, Meta makes it as hard as possible to delete your Facebook account. It keeps changing the procedure. In some cases it directs you to the wrong tabs. But this video by Gauging Gadgets provides a simple guide. www.youtube.com/watch?v=HZIJ...

Linkedin

2-yr postdoc on human macroecology in a functional trait perspective Aarhus University - Vacancy at Aarhus University Vacancy at School of Culture and Society - Department of Heritage Studies, Aarhus University

🚨Postdoc Opportunity in Human Macroecology🌍Join @econovoau.bsky.social at @aarhusuni.bsky.social to study human #macroecology from a functional #trait perspective, in #archaeology + #ecology team led by @felixthehauskat.bsky.social👣
🗓️Deadline: Jan 31, 2025
👉Apply: international.au.dk/about/profil...

Oysters once crowded Europe's coast—here's how researchers discovered these long-forgotten reefs Six generations ago, Europe's seas possessed vast oyster reefs. Oysters were found in their millions, clustered together in reef systems that spanned hundreds of square kilometers. Now the reefs are g...

Oysters once crowded Europe's coast—here's how researchers discovered these long-forgotten reefs 🦪🦪🦪 phys.org/news/2025-01... #marinebiology #oysters #shiftingbaseline

New study led by Sidi Yahya Lemrabott finds concerningly high rates of bycatch of critically threatened sharks & rays in artisanal fisheries in West Africa's unique Banc d'Arguin ecosystem. 🌍🦈 Read more: onlinelibrary.wiley.com/doi/10.1111/... #SharkConservation #Bycatch #MarineBiodiversity

De referentie naar het stikstof kaartje bedoelden de schrijvers denk ik niet als 'up to date info'. Ze gebruikten het als illustratie van hoe duidelijke ruimtelijke keuzen en afwegingen 'besmet' zijn verklaard in het publiek debat, ondergesneeuwd onder zaken als plattelandsidentiteit

Per definitie gaat discussie over verdeling van schaarse ruimte over alles wat ruimte in neemt, dus ook over luchtvaart.

New evidence spells massive trouble for world’s sharks, rays and chimaeras Evolution has perfected the world’s sharks and rays for more than 420 million years. Unlike the ammonites or pterosaurs that they once shared the oceans with, sharks and rays persevered through five m...

A third of the world’s sharks, rays and chimaeras are threatened with extinction, and their numbers have dwindled since 1970, finds a new IUCN report and a study. 🌍
#MarineLife #conservation #ecology
news.mongabay.com/2025/01/new-...

Jens-Christian Svenning on LinkedIn: #modeling #wildhorses #wilderness #herbivores #ecosystems #ecology… 📢 Exciting PhD Opportunities in Ecology & Biodiversity! 🌍 Are you passionate about understanding and shaping the future of ecosystems? At Center for…

Check our two open PhD positions in #ecology at @econovoau.bsky.social www.linkedin.com/posts/svenni... (note - as always in #Denmark - these positions come w/ full academic salaries) 🐎🍃🌎🌤️ #megafauna #vegetation #wildhorse #modelling

Prima analyse van @bosdaan.bsky.social en Wouter Ubink: het gaat over de schaarse ruimte in Nederland, waardoor echte langetermijn keuzes steeds sneuvelen in debatten die de politiek vooral langs lijnen van economie en identiteit wil voeren

A round jellyfish with glowing golden stripes on the bell and long tendril tentacles against a background of deep sea sediment.

An anemone with many white thin tentacles

A close up into the centre of a feather duster worm with radiating striped white and brown tentacles

A semi-translucent octopus with a spotted mantle and blue tentacles.

Happy New Year from invertebrates that look like fireworks.

Credits
Jellyfish: OET/Nautilus Live
Anemone: Cathy Lewis
Feather duster worm: Pauline Walsh Jacobsen
Octopus: Schmidt Ocean Institute

Sounds like what one would write now, but from Chaplin's famous monologue in his 1940 film The Great Dictator. Quoted in Paolo Nutini's song Iron Sky

btw you can check the website WikiShootMe for nearby landmarks that need freely-licensed photos, visit them, and then snap pics for Wikipedia/Wikimedia Commons! it's so fun and the list of photoless destinations is endless. I chose this movie theater as an example bc it's where I first watched Cars

Many light-demanding European woody plants are thorny or have prickly leaves, making them common in landscapes inhabited by large herbivores (livestock). Many of these species are dispersed by frugivorous birds associated with open habitats

Starling & Blackthorn (Sloe)

📸 Nature Picture Library

Met een simpele opstelling met tuinkers en Lego Duplo in een aquarium kun je het nut van begroeide oevers voor kustbescherming gemakkelijk demonstreren.

#NaturebasedSolutions #waterveiligheid

(met dank aan mijn collega's aan @uantwerpen.bsky.social voor het maken van dit filmpje)

www.songbird-survival.org.uk/post/news-to...