Philipp Laeseke

Infographic with an underwater photo split between lush green seagrass (left) and bare sandy seafloor (right). IPBES logo top right reads "Science and Policy for People and Nature." Large white text: "Seagrass Meadows – Lost over 10% Every decade, 1970–2000." Bottom text: "IPBES Global Assessment reveals critical marine decline impacting biodiversity and climate resilience."

Marine ecosystems, from coastal to deep sea, now show the influence of human actions, with coastal marine ecosystems showing both large historical losses of extent and condition as well as rapid ongoing declines.

Let’s act to restore what’s been lost. 🌊🌱

Happy World #Seagrass Day!

Access the full media kit, including the Summary for Policymakers (SPM), multilingual press releases, and various multimedia assets at this link: bit.ly/IPBES12Media

🤔Looking to make your #code more #reproducible? Check out our new and improved guide to Reproducible Code! 🧪🌍️

Find it here👇️
buff.ly/10TeNok

@nhcooper123.bsky.social
@britishecologicalsociety.org

I just visited Corcovado National Park in Costa Rica, one of the most biodiverse regions on Earth. Walking in this pristine forest and experiencing the sheer diversity and interactions of plants, animals, fungi, lichens, the elements, in this ecosystem was almost spiritual. Protect life on Earth!

Die eingeschleppte Wollhandkrabbe wird zur Gefahr für heimische Flussökosysteme. Ein neues #DBUprojekt setzt auf Barrieren am Gewässerboden, um ihre Ausbreitung zu stoppen. Mehr dazu: www.dbu.de/projektbeisp...

Large‐scale deviations between realized and fundamental thermal niches in global seaweed distributions Aim Climate change has profound effects on species' distributions, and it is crucial to understand how well physiological limits correspond to distribution patterns to provide realistic estimations ...

doi.org/10.1111/ddi....

A global dataset of native and alien distributions of alien species - Scientific Data Scientific Data - A global dataset of native and alien distributions of alien species

doi.org/10.1038/s415...

We ( @mormoops.bsky.social @hannoseebens.bsky.social ) recently published a dataset on native and non-native ranges of invasive species doi.org/10.1038/s415...

We are at #tibs2026 by @biogeography.bsky.social with a poster (number 1061) to present it!

Poster session at #tibs2026 by @biogeography.bsky.social now! My talk tomorrow on forecasting spread of NIS.

How to stop the revolving door of German academia Germany is one of the most popular destinations for students and scholars worldwide, but those pursuing academic careers face significant hurdles to success.

German academia: great place to work? You should think twice before giving it a try: Permanent positions are very rare, most scholars have to drop out after some precarious years. @dianakwon.bsky.social has written a great piece about this for @nature.com and also talked to yours truly. #IchBinHanna

Thank you! 😊

We did not have an opportunity to go to Hvalfjördur, but Fucus serratus is thriving around Reykjavík. We found no hybrids though. Did anybody further investigate the hybrids by any chance? 🤔 they looked so weird!

In winter 2012/13 I had a great time studying Fucus with @lomentaria.bsky.social for my Bachelor Thesis. Now I am here again, showing my child these beauties.

AMOC weakening declared a national security threat Iceland has declared the AMOC a national security threat and an existential risk in the coming decades, enabling its Government to prepare for worst-case scenarios. Should we be worried?

The latest research confirms AMOC weakening together with a tipping point that is getting closer and closer. Governments are starting to notice with Iceland the first to declare it a national security threat.
drtomharris.substack.com/p/amoc-weake...

#climatechange #amoc #adaptation #tippingpoint

🌿📢 Expert reviewers needed!
IPBES has opened the external review of its assessment on monitoring biodiversity & nature’s contributions to people.

🐛 Review period: 5 Nov 2025–7 Jan 2026
🦋 Register: bit.ly/4pBchKH

#Biodiversity #IPBES #SciencePolicy #OurChangingMountains #MountainsMatter

New Blog Post THREE WAYS OF LIVING WITH GRASSLANDS: WHAT A GERMAN “REAL-WORLD LAB” TEACHES US ABOUT RESTORATION

justiceandconservation.com/so/abPfKR0nB...

A really well written blog post about the values people hold in relation to #grassland restoration. A key outcome of our Grassworks project, asking what leads to success in grassland restoration.

Image of a sandwich and schedule for 2025/2026, that can also be found on the linked webpage.

The young modelers in ecology (YoMo), a specialist group of the @gfoesoc.bsky.social, are currently organizing an exciting workshop series about ecological modeling.

www.yomos.org/lunchbox-mod...

I will present my work with @hannoseebens.bsky.social and @mormoops.bsky.social on forecasting spread of non-native invasive species at this years @guardias.bsky.social online conference from 13th to 14th of November.

Postdoc depression and anxiety rates are rising, finds survey of 872 researchers The Max Planck Society is good at attracting international postdocs but struggles to retain them, survey finds.

Too bad the article is behind a pay all, but the title says a lot. We don’t talk enough about mental health challenges in academia and most institutions don’t seem to have resources in places to support students and postdocs going through difficult times

www.nature.com/articles/d41...

📢 A 90-day public review and comment period has been opened for the new conceptual model and Data Package Guide for #DarwinCore
Have your say until 16 December!
🔗 Learn more: www.tdwg.org/news/2025/pu...

New publication! We mapped the global genetic diversity of marine forests of brown macroalgae. Using genetic data, machine learning & past climate projections (LGM, ~20k yrs ago), we identify hotspots of diversity that shape resilience & conservation priorities. 🌍 🌊

Link: doi.org/10.1038/s420...

Das Bild ist ein Plakat für eine Klimademonstration. Oben steht in großen, orangefarbenen Buchstaben der Text: „GLOBALE KLIMADEMO“. Darunter sind vier stilisierte, bunte Blumen abgebildet: links oben grün mit einem blauen Zentrum, rechts oben orange mit einem grünen Zentrum, links unten blau mit einem orangefarbenen Zentrum, rechts unten ebenfalls orange mit einem grünen Zentrum. Unter den Blumen ist in großen orangefarbenen Ziffern das Datum „20.09.“ zu lesen. Ganz unten folgt in orange der Slogan: „EXIT GAS ENTER FUTURE“. Die Gestaltung wirkt freundlich, farbenfroh und naturverbunden, was die Botschaft einer globalen Klimademonstration unterstreicht.

Am 20.09.2025 ist wieder Klimademo!

Infos: fridaysforfuture.de/klimastreik/

Now live: webinar on „Changing human behavior to secure conservation outcomes“

octogroup.org

Hope, joy, absurdity and marvel: there is so much more to our world story than loss Amid environmental tragedy, a hidden world of curiosity and wonder still exists. And in this, says Natalie Kyriacou, we can find glimmers of hope

Amid the biodiversity crisis, stories of resilience and recovery offer hope. From monarch butterflies migrating to the reintroduction of species such as the Arabian oryx, nature's recovery inspires. 🦋 #ConservationOptimism 🌏🧪

Discover more with @theguardian.com 

Raising concerns on the dangers of linking biological invasions to human migration A recent paper by Ahmed et al. (2025. “Parallels and Discrepancies between non-native Species Introductions and Human Migration.” Biological Reviews 100 (3): 1365–1395), published in Biological Rev...

„[…] human migration as biological invasions inherently constructs migrants as potential threats […] and conceptualises migration as a passive process where humans have no agency or free will.“

www.tandfonline.com/doi/full/10....

Registered for @biogeography.bsky.social conference 2026 and will give a talk about our (@mormoops.bsky.social & @hannoseebens.bsky.social) new model approach to forecast invasive species spread based on traffic gravity model and landscape resistance maps derived from open data. 🥳

Submitted my abstract for GuardIAS virtual conference this November 💪 looking forward to taking part in this!

#GEOMARJobs | We are hiring!

🌊 Doctoral Researcher (m/f/d) “Algal heat adaptation”
🌊 Personalsachbearbeiter:in (m/w/d)
🌊 Projektmanager:in (m/w/d)

🔗 www.geomar.de/karriere-cam...

Submitted abstracts for the @biogeography.bsky.social conference in Aarhus in January 2026 💪 very much looking forward to it!

Ahhh beautiful fragile creatures of the sea…😍