Dr. Thomas Felis

www.uni-kiel.de/de/detailans...

Bremen, Weserstadion, right now...

New puplication by @climatereefs.bsky.social 🪸 Corals are climate archives. Their skeletons show how El Niño and La Niña changed in the Pacific over 1,500 years ➡️ www.marum.de/en/Changing-... #MARUM #MarineResearch #ClimateResearch

🪸 Life is better in color! September is Coral Bleaching Awareness Month. We’re joining the Coral Reef Alliance and organizations worldwide in bleaching our logo to raise awareness of coral bleaching, one of the most visible signs of reef stress. 🔗 go.coral.org/coral-bleach...

So happy that this paper is finally out!

🌊Central Pacific El Niño activity increased between the first and second millennia CE, while volcanic eruptions likely drove cooling episodes. @climatereefs.bsky.social @marumunibremen.bsky.social @thomasfelis.bsky.social @andydolman.bsky.social 👉Read more here: www.nature.com/articles/s43...

Breminale...

📢 New paper out! 🌊 Why do some coral reefs survive marine heatwaves better than others? The answer lies far beyond the reef itself. Natural coral reef refuges are dynamic. Their cooling depends on tropical climate modes (ENSO,IOD), shaping coral resilience in a warming ocean Read more: rdcu.be/fq0ml

La Strada in Bremen right now

#SPP2299 phase 1 coordinator @thomasfelis.bsky.social presenting the @dfg.de priority programme at the 3rd Taiwan International Symposium on Coral Reefs (TISCR 2026) in Kaohsiung today @marumunibremen.bsky.social

World’s Fourth Mass Coral Bleaching Event Likely Ended in 2025 www.nesdis.noaa.gov/news/worlds-...

The 3rd Taiwan International Symposium on Coral Reefs (TISCR 2026) has just begun. SPP 2299 will be giving a presentation this afternoon in sunny Kaohsiung

#SPP2299 presented today at JpGU-AGU Joint Meeting 2026 #JpGU2026 in Chiba, Japan - including some research highlights from Phase 1

New study by #SPP2299 researcher Takaaki Watanabe published in open-access Geophysical Research Letters: agupubs.onlinelibrary.wiley.com/doi/10.1029/... "Coral Reefs in the Indonesian Seas Threatened by Heat and Cold Stress" @agu.org @uni-kiel.de #AGUPubs #CAU #UniKiel

New blog about #SPP2299 early career researcher Diana Diers from @goetheuni.bsky.social: "What can coral geochemistry reveal about past climate variability?" Check it out on our website: www.spp2299.tropicalclimatecorals.de/2026/05/06/w... www.spp2299.tropicalclimatecorals.de

#SPP2299 early career researcher @hcamelia.bsky.social is presenting the currently longest monthly coral proxy time series of temperature and hydrology for the northeastern Indian Ocean, back to the late 18th century, at #EGU26 www.spp2299.tropicalclimatecorals.de @marumunibremen.bsky.social

#SPP2299 presented today at #EGU26 in sunny Vienna

New blog post on our website highlighting the #SPP2299 EOCENE project at Leipzig University: From Fossil Corals to Climate Data: Methods and Insights share.google/0jb2vokX5qTv...

New blog on our website about the @pages-ipo.bsky.social CoralHydro2k Seawater δ¹⁸O Database, an initative lead by Alyssa Atwood, with contribution by #SPP2299. Check it out! Unlocking Hidden Stories of the Ocean: A New Global Database of Seawater Oxygen Isotopes share.google/gCoxSflxgdMV...

Unlocking Hidden Stories of the Ocean: A new study introduces a global database of oxygen isotopes in seawater. The researchers have compiled measurement data into a unified, freely accessible, and standardized resource ➡️ www.marum.de/en/Unlocking...

The #SPP2299 team @marumunibremen.bsky.social has contributed to an international initiative, a database of oxygen and hydrogen isotope measurements in seawater for research into the global water cycle and climate change @jannhargreaves.bsky.social @thomasfelis.bsky.social @pages-ipo.bsky.social

Well done, Hana! A happy Hana Camelia and her examination committee after successfully defending her doctoral thesis yesterday at the University of Bremen. It was great to have you as a doctoral student @climatereefs.bsky.social @marumunibremen.bsky.social

New blog on our website! Check it out! How Life at Sea Prepared Luisa Meiritz for Studying Coral Bleaching share.google/pMh2OSHXN5r7... @geomarkiel.bsky.social

The DFG Priority Programme “Tropical Climate Variability & Coral Reefs” (SPP 2299) has released a new video highlighting the programme’s current research activities and outlining upcoming scientific priorities. Check out the new video on our YouTube channel: youtu.be/PUQUnIhgVEk?...

Bremen, right now...

[ENSO Webinar Series] We are pleased to invite you to join us for the first webinar of the CLIVAR Pacific Region Panel’s newly launched ENSO webinar series: January 22, 2026 | 07:00 UTC GoTo Meeting – meet.goto.com/198838725 Scan the QR code to sign up Check more: www.clivar.org/events/enso-...

See our new paper lead by Ryuji Asami on fossil corals drilled at Tahiti by @ecord.bsky.social IODP Exp. 310 CP - Penultimate glacial sea surface temperature and hydrologic variability in the tropical South Pacific from 150 ka Tahiti corals share.google/2WMYl0YClhX9... @marumunibremen.bsky.social

Some AI suggested that I shouldn't always post about corals and climate. So I'll give this a try: Christmas market in Bremen 2025

Check out our latest work, led by Jon Jung, Ph.D. student in the @amglab.bsky.social at @mpic.de: www.nature.com/articles/s41... Here we show that the supply of excess phosphorous from accounts for the majority of observed Sargassum variability since 2011. 🌊 🧪 #Paleosky #CoralReefs

The driver of Sargassum blooms in the Atlantic Ocean: Upwelling of phosphorus-rich deep water promotes an N-fixing symbiont of the Sargassum algae giving it a competitive advantage. 👉https://tinyurl.com/br5drzux #SargassumBlooms #ClimateResearch #MarineScience #MPIChemie #EnvironmentalScience 🌎

Excited to share our work using #aDNA to reconstruct #Symbiodiniaceae dynamics from #coral cores. Led by José Grillo, @jessireichert.bsky.social, @nessatir.bsky.social part of #TaraPacific expedition & supported by #SPP2299 @climatereefs.bsky.social doi.org/10.1111/gcb....

Thanks to everyone who joined our Meeting & Status Seminar 2025 - It was such a mix of minds and experiences. It was not just about presentations - It was about connecting ideas, perspectives, and people. Events like this remind us why we do research: To explore, to question, and to grow - Together

Next talk by Mandy Freund @climatefreund.bsky.social about "ENSO during the past millennium"

Next talk by Iliana Baums @ibaums.bsky.social on "Reconstructing historical population dynamics of corals" @hifmb.de @marumunibremen.bsky.social

Ben Henley @benhenley.bsky.social kicking off the 3rd day of the #SPP2299 "Meeting & Status Seminar 2025" with a keynote on "Heighest ocean heat in four centuries places Great Barrier Reef in danger" @marumunibremen.bsky.social @dfg.de

Last keynote for today by Sara Sanchez on "Data assimilation with coral d18O"

Ed Hathorne @edhathorne.bsky.social advertising the new coral reference material "Ishi-B SPP2299" Find out more at www.spp2299.tropicalclimatecorals.de/ishi-b-spp22...

First keynote of today by Caroline Ummenhofer on "Indo-Pacific climate variability of the last millennium"

The afternoon session is starting with an Invited Early Career Researcher Talk by Xuefei Chen from Guangzhou Institute of Geochemistry on "Paleoclimate and biological responses from South China Sea corals"

Chris Voolstra @reefgenomics.bsky.social kicking off the 2nd day of the #SPP2299 "Meeting & Status Seminar 2025" with a Perspective Lecture on "The future of reefs and reefs of the future"

Second keynote of today by Alyssa Atwood on "An updated last millennium ENSO reconstruction from the central equatorial Pacific"

First Keynote at #SPP2299 "Meeting and Status Seminar 2025" by Andrea Grottoli @andreagrottoli.bsky.social on "Leveraging coral biology, technology, and research networks to save coral reefs" in Bremen @marumunibremen.bsky.social

Next to presentations from 18 #SPP2299 projects, we have an impressive line-up of keynote speakers, including Andrea Grottoli, Alyssa Atwood, Caroline Ummenhofer, Sara Sanchez, Ben Henley, Christian Voolstra, as well as other excellent talks from our invited guests incl. Xuefei Chen and Mandy Freund

We are excited about the "Meeting & Status Seminar 2025" of the @dfg.de #SPP2299 Priority Programme "Tropical Climate Variability & Coral Reefs", which starts Monday at @unibremen.bsky.social. 55 researchers, from 15 German institutions and international guests, will discuss latest research results

PAPER ALERT - New #SPP2299 publication by Andrew Dolman: Temperature Variability on Coral Reefs Versus Gridded SST – The Long and the Short of It - Dolman - 2025 - Geochemistry, Geophysics, Geosystems - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Check out our new blog on our website: Why Early Career Researcher Mobility Matters: Reflections from SPP 2299 www.spp2299.tropicalclimatecorals.de/2025/08/20/w... written by @jannhargreaves.bsky.social. The focus is on young scientists gaining knowledge about crucial steps for their future careers