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carlreddin.bsky.social @carlreddin.bsky.social · Jul 19

@paleodb.bsky.social @bioone.bsky.social

carlreddin.bsky.social @carlreddin.bsky.social · Jul 19

Contrary to our expectations, extinction selectivity based on
total calorific needs, which emphasises body size, did not differ between hyperthermals and other time intervals [images lightly adapted from Gavirneni et al. 2025, linked above]

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carlreddin.bsky.social @carlreddin.bsky.social · Jul 19

Together, this may suggest an evolutionary trend checking heterotroph mass-specific energy and/or oxygen use, with an important role for tropical heat and rapid warming events

a cartoon of a newspaper that says heat wave continues on it

ALT: a cartoon of a newspaper that says heat wave continues on it

media.tenor.com

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carlreddin.bsky.social @carlreddin.bsky.social · Jul 19

Extinction selectivity against a high mass-specific metabolic rate was especially strong in the paleotropics during hyperthermal events

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carlreddin.bsky.social @carlreddin.bsky.social · Jul 19

Whole body metabolic rate increased through time, consistent with increasing maximum body sizes and the postulated ramping up of ecosystem energetics. Mass-specific metabolic rate, the energy used per g tissue, however, decreased...

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carlreddin.bsky.social @carlreddin.bsky.social · Jul 19

Hugely proud of @sgavirneni.bsky.social for his first paper published last week in Paleobiology. With Linda Ivany, we linked marine #bivalve #extinction risk to adult resting metabolic rate (both whole-body total and mass-specific) over the past 300 million years... [1/5]
doi.org/10.1017/pab....

Burning calories, burning ocean: metabolic rate in bivalves as a predictor of extinction selectivity through time and during rapid global warming | Paleobiology | Cambridge Core

Burning calories, burning ocean: metabolic rate in bivalves as a predictor of extinction selectivity through time and during rapid global warming

doi.org

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Reposted

Jesse Czekanski-Moir @jessecm.bsky.social · Mar 12

happy to share some freshly published work in Paleobiology with Daniel Phillipi and Linda Ivany (not on bluesky): doi.org/10.1017/pab....
@paleodb.bsky.social paper #493

Global Phanerozoic biodiversity—can variation be explained by spatial sampling intensity? | Paleobiology | Cambridge Core

Global Phanerozoic biodiversity—can variation be explained by spatial sampling intensity? - Volume 50 Issue 4

doi.org

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Reposted

Ian Hall @ianhall.bsky.social · May 22

Sea temperatures around the UK & Ireland are up to 4°C above normal - April & May set 45-year records

This is another marine heatwave, driven by climate change

Oceans are sounding the alarm

@BBC, please use more climate impactful images…it’s not about fun at the beach

www.bbc.com/news/article...

Marine heatwave: UK sea temperatures soar after exceptionally warm Spring - BBC News

Sea temperatures in some areas off the UK and Ireland are 4C above average.

www.bbc.com

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carlreddin.bsky.social @carlreddin.bsky.social · Mar 19

Early bird registration ends soon for this awesome conference combination!

CPEG & CPB Symposium 2025 @cpeg-cpb25.bsky.social · Jan 20

🚨 REMINDER 🚨

Abstract submission for the CPEG Meeting & Conservation Paleobiology Symposium closes soon!

🗓️ Abstract deadline: Feb 1st, 2025
🕒 Early bird pricing ends: April 1st, 2025

Details on keynote speakers, deadlines, fees, workshops & more below!
👉 cpeg-cpb25.uzh.ch/en.html

# CPEGCPB25

| Crossing the Paleontological-Ecological Gap & Conservation Paleobiology Symposium | Zurich, 2025 | UZH

cpeg-cpb25.uzh.ch

Reposted

Nessa O'Connor @nessocon.bsky.social · Mar 19

Another #PhD scholarship available! 🦪🌊 part of a fantastic new oyster restoration project!

Dr Annika Clements @annikaclements.bsky.social · Mar 19

We have a #PhD opportunity on #oyster restoration in modified water bodies as a potential #NatureBasedSolution with @nessocon.bsky.social as part of the new BRICONS project! See www.findaphd.com/phds/project...
🌊🦪

Marine habitat as a Nature-Based Solution in Belfast Harbour: developing Native Oyster restoration in modified water bodies. at Queen’s University Belfast on FindAPhD.com

PhD Project - Marine habitat as a Nature-Based Solution in Belfast Harbour: developing Native Oyster restoration in modified water bodies. at Queen’s University Belfast, listed on FindAPhD.com

www.findaphd.com

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Reposted

Benjamin Mills @bjwmills.bsky.social · Mar 19

The SCION Earth Evolution Model is turning 4 years old this spring. We have celebrated by extending the framework back to ~1 Ga before present

We find some agreement with broad environmental trends from the rock record, but there is still plenty to learn!

www.sciencedirect.com/science/arti...

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Reposted

Jason Mark @jasondovemark.bsky.social · Mar 7

I've been following the insect decline. I've written about it. And still. This line made me sick to my stomach:
In 20 years, the fleeting time it takes for a human baby to grow into a young adult, the country has lost 22 percent of its butterflies, researchers found
www.nytimes.com/interactive/...

See How Butterfly Numbers Are Dropping Near You

Populations are falling in the United States, a new study has found. Look up what’s happening in your area.

www.nytimes.com

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Reposted

The Palaeontological Association @thepalass.bsky.social · Feb 27

⚠️The registration for ProgPal is #open 🥳✨
For full details regarding registration and abstract submission deadlines, event themes and scheduling, please check out the ProgPal 2025 website:
www.palass.org/meetings-eve...

#conference #student #uk

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Reposted

Helmut Hillebrand @hillebr1.bsky.social · May 16

Climate change after the last glacial maximum led to a long-lasting reshuffling of zoo- and phytoplankton assemblages, very cool paper by Tonke Strack shows. 🧪 @marumunibremen.bsky.social @icbm-uol.bsky.social @hifmb.bsky.social #biodiversity #OceanFloor

onlinelibrary.wiley.com/doi/epdf/10....

Coherent response of zoo‐ and phytoplankton assemblages to global warming since the Last Glacial Maximum

You have to enable JavaScript in your browser's settings in order to use the eReader.

onlinelibrary.wiley.com

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Reposted

Christopher Dean @princessquatris.bsky.social · Feb 26

Very excited to use my first @bsky.app post to announce @echinerd.bsky.social and I's new paper in Proc B! 🎉

We used a dataset of Palaeozoic echinoids from 33 museums worldwide to see the impact museum ‘dark data’ has on biogeographic and evolutionary patterns in deep time!

doi.org/10.1098/rspb...

Museum ‘dark data’ show variable impacts on deep-time biogeographic and evolutionary history | Proceedings of the Royal Society B: Biological Sciences

The age of digitally accessible datasets has transformed palaeontology, enabling previously impossible macroevolutionary insights. However, a substantial reservoir of generally inaccessible ‘dark data...

royalsocietypublishing.org

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Reposted

Anne Applebaum @anneapplebaum.bsky.social · Feb 6

The world's richest man is taking food and medicine from the world's poorest children
www.nytimes.com/2025/02/05/o...

Opinion | The World’s Richest Men Take On the World’s Poorest Children

I’ve seen U.S.A.I.D. operate around the world, and it’s not woke — it’s lifesaving.

www.nytimes.com

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Reposted

Dr. Amanda Godbold @amandagodbold.bsky.social · Feb 7

🚨Publication alert!🚨

Thrilled to share that our paper, “Ancient frameworks as modern templates: exploring rubble consolidation in an ancient reef system”, is now out and is open access.

We found that 🪸 rubble in the Late Triassic shared similar consolidation processes to modern reefs.

Reconstruction of the spatial and temporal arrangement of the microfacies and fossil communities found at two of the three outcrops. Image created in collaboration with Tanner Strachan.

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carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

Thanks @naturecomms.bsky.social
Here's a little thread on the work we did!
bsky.app/profile/carl...

carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

This one took some years in the making! Here, the closeness of a #jurassic species' temperature preference to its environmental temperature (=thermal bias) was a useful predictor of whether it moved in, remained, or moved out of a region, or went #extinct during #climatechange... rdcu.be/d8IfN

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Nature Communications @natcomms.nature.com · Feb 5

Looking at regional warming and marine bivalves, brachiopods, and gastropods in the early Jurassic, Reddin et al. find that species with cooler temperature preferences than local conditions were more likely to become extirpated or extinct.
www.nature.com/articles/s41...

Marine species and assemblage change foreshadowed by their thermal bias over Early Jurassic warming - Nature Communications

Thermal bias may predict the impact of climate change. Looking at regional warming and marine bivalves, brachiopods, and gastropods in the early Jurassic, the authors find that species with cooler tem...

www.nature.com

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carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

Why is what happened in an early #Jurassic warming crisis relevant today? Because our planet is now showing many of the same indicators as in these ancient crises, as we warm it by releasing the CO2 once captured by ancient plants (i.e. fossil fuels)

carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

At +3°C warming, a region tended to lose 5% of its species while receiving 25% immigrating from elsewhere

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carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

Our study system was prehistoric, using #marine #fossils from the early Jurassic northwestern Tethys Sea during a warming-associated #extinction crisis, the #T-OAE. We modelled the climate with #ClimberX in agreement with geochemical indicators...

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carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

...which was also stronger for #brachiopods, thought to be more vulnerable, than the #bivalves...

a cartoon drawing of a blue object with a purple background .

ALT: a cartoon drawing of a blue object with a purple background .

media.tenor.com

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carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

The more the region warmed, up to 10°C (mean=4.5°C), the stronger this relationship...

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carlreddin.bsky.social @carlreddin.bsky.social · Feb 6

This one took some years in the making! Here, the closeness of a #jurassic species' temperature preference to its environmental temperature (=thermal bias) was a useful predictor of whether it moved in, remained, or moved out of a region, or went #extinct during #climatechange... rdcu.be/d8IfN

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