Flavia Boscolo-Galazzo
@fboscolo-galazzo.bsky.social
Micropaleontology (foraminifera), Paleoclimatology, Macro-ecology & -evolution @Marumunibremen
Nice new paper about diversity&ecology of reef systems under different Cenozoic warmings
Dr. Or M. Bialik |📚|🔬|🌊|⚒️@obialik.bsky.social · 3mo ago"Coral reef factories appear to be resilient, compromised only by extreme heat or combined stressors" The nice thing, this study shows this to be the case across the last 50(ish) million years. 🧪🌊 Link: https://www.sciencedirect.com/science/article/pii/S0037073826000989
On the day the Joides Resolution is on its way to be shredded, we also find out about NSF's removal of ocean observation arrays; here is the update that was posted before a U.S. holiday weekend oceanobservatories.org/2026/05/nsf-...
NSF OOI Descoping Update for the Community - Ocean Observatories Initiative
Dear OOI Community, As many of you may now be aware, the U.S. National Science Foundation (NSF) has initiated a major descoping of the Ocean Observatories Initiative (OOI) Major Facility. The official...
oceanobservatories.org
A hidden rule of Antarctic climate change: the warmer parts of Antarctica warm and cool more than colder places. This persistent pattern, driven by a nonlinear greenhouse effect, has shaped Antarctic temperatures for hundreds of thousands of years. www.pnas.org/doi/full/10....
The rise and expansion of reef systems in the Indo-Pacific during the warm and CO2 high Miocene (and decline in the aftermath) will never stop being puzzling to me. Now we have evidence that it also had the biodiversity effects expected. 🧪🌊 Link: https://www.science.org/doi/10.1126/sciadv.aec7264
![Shifts in rates of speciation and diversification in reef fishes during the time of reef expansion.
Rates of speciation (A), extinction (B), and net diversification [speciation minus extinction; (C)] estimated using the Tess-CoMET model applied to a comprehensive phylogeny of reef-associated fishes (see Materials and Methods). The solid black lines show the mean rates across the posterior distribution, whereas colored thin lines show 500 random posterior samples. The vertical green translucent bars represent the time of greatest expansion in reef area and thickness during the Early/Mid Miocene. Pal, Paleocene; Pi, Pliocene; P, Pleistocene.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ywwbhwuq4sszjve7kdshnahd/bafkreielhujlklpp22x7uqhfdebu5kmus5h3c4zmsooqh3lfwha3w3vsni)
🌊 Circumpolar Deep Water in the Southern Ocean is shifting poleward (~1.26 km/yr), increasing warm water near Antarctica. Boosting heat flux to ice shelves, leading to increased basal melt and sea-level rise. www.nature.com/articles/s43...
Poleward migration of warm Circumpolar Deep Water towards Antarctica - Communications Earth & Environment
Circumpolar Deep Water is increasing in thickness towards Antarctica in the upper 2000 m of the Southern Ocean, according to analyses of ship-based observations combined with machine learning modellin...
nature.com
We have a new paper out in Paleoceanography and Paleoclimatology showing that the latitudinal gradient in leaf wax hydrogen isotopes over western North America reflects the mean climatological position of the storm tracks. agupubs.onlinelibrary.wiley.com/doi/pdf/10.1...
Leaf Wax Hydrogen Isotopes Reflect Storm Track Position Over Western North America
We analyze modern leaf waxes in near-shore marine sediments spanning a north–south transect along the coast of western North America Leaf wax hydrogen isotope values become more negative at the l...
agupubs.onlinelibrary.wiley.com
Illustration services... on the theme of the ocean, the environment, climate or paleontology and micro-paleontology,.... Between Art and Science : here is Pauline CORNUAULT ... -and PalaeoWave communication. ❤️ 👏 💚 🙂 . www.scienceseashell.com/call-on-my-s...
Science in a Seashell - My illustration services
Illustrations on the theme of the ocean, climate, the environment and palaeontology
scienceseashell.com
🌊 What happens to global temperature after net-zero? New results suggest deep-ocean processes matter: as vertical heat diffusion warms the deep ocean, reduced heat uptake could reverse surface cooling on 100 yr timescales. …the climate system has a very long memory. www.nature.com/articles/s41...
Deep ocean control of global temperature after net-zero emissions - Nature Geoscience
When atmospheric carbon dioxide levels decline, increased ocean heat absorption would initially slow surface warming before warming the deep ocean, which ultimately raises global mean surface temperat...
nature.com
Burning to learn more about marine protists as an early career?! This is for you! Apply and join one week of fantastic field-based summer school
John Burns@burnsajohn.bsky.social · 6mo agoProtist lovers: Please apply for a week of rhapsody! Learn by doing: MicroSEA (Microbial Sea Eukaryotes) course is a one-week, field-based summer school to train early-career researchers in the diversity, ecology, and single-cell biology of marine protists. opbc.sciencesconf.org #protistsonsky
Ice sheets big and small www.nature.com/articles/s41...
Ice sheets big and small - Nature Geoscience
Ice sheets can be extremely sensitive, or remarkably resilient, to environmental perturbations. Reconstructions of past ice sheet variability help identify what controls their stability and how they m...
nature.com
Have you ever heard of “#borealization”? A new study provides strong evidence for biodiversity changes in the coastal ecosystems of the European Arctic. Find out more about it here ➡️ www.marum.de/en/borealiza... @unibremen.bsky.social #FaceItProject
We need to avoid pathway to ‘hothouse Earth’ scenario quickly 🥵 A team of researchers from Oregon State University, including Thomas Westerhold from @marumunibremen.bsky.social, is now calling for significant changes in climate policy in a commentary. Read more here ➡️ www.marum.de/en/Commentar...
Press Release in English and German: Swinging Abyss: www.marum.de/en/Swinging-... Schwingende Tiefsee: nachrichten.idw-online.de/pressrelease...
Schwingende Tiefsee
nachrichten.idw-online.de
Congrats to Flavia and colleagues on an important (and really tough-to-get) result!
Flavia Boscolo-Galazzo@fboscolo-galazzo.bsky.social · 8mo agoPaper Alert❗️We present the first Oligocene record of orbital variability in abyssal ocean temperature based on benthic foraminiferal clumped isotopes. Temperature changes up to 4 degrees C with a 110 kyr pacing, indicating Antarctic ice-volume at this time was less dynamic than previously thought.
Paper Alert❗️We present the first Oligocene record of orbital variability in abyssal ocean temperature based on benthic foraminiferal clumped isotopes. Temperature changes up to 4 degrees C with a 110 kyr pacing, indicating Antarctic ice-volume at this time was less dynamic than previously thought.
For the first time, scientist discovered that the large up-and-downs in oxygen isotopes of the mid Oligocene were primarily driven by large temperature changes in the abyssal ocean and not, as previously assumed, to enormous changes in ice volume in Antarctica. 3/3 www.nature.com/articles/s41...
Oligocene deep ocean oxygen isotope variations primarily driven by temperature - Nature Geoscience
Large benthic oxygen isotope fluctuations in the Oligocene Southern Ocean primarily represent deep water temperature changes, suggesting the Antarctic ice sheet volume was relatively stable, according to a clumped isotope record.
nature.com
new paper led by Flavia Boscolo-Galazzo 'Exploring macroevolutionary links in multi-species planktonic foraminiferal Mg∕Ca and δ18O from 15 Ma to recent' bg.copernicus.org/articles/22/...
Exploring macroevolutionary links in multi-species planktonic foraminiferal Mg∕Ca and δ18O from 15 Ma to recent
Abstract. The ratio of the trace element Mg over Ca (Mg/Ca) and the oxygen isotopic composition (δ18O) of foraminiferal calcite are widely employed for reconstructing past ocean temperatures, although...
bg.copernicus.org