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Jon Cybulski

@jonscibulski.bsky.social
82 followers 93 following 24 posts

Historical ecologist and educator at #HKU #URIGSO. Humanizing #science one story at a time. Isotopes, marine biology, conservation. he/him

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Reposted by Jon Cybulski
Erin Dillon @erinmdillon.bsky.social · 13/08/2026
Huge thanks to an amazing team of co-authors: Douglas McCauley, Migdonio González, @connollyseanr.bsky.social, Brígida de Gracia, @jonscibulski.bsky.social, Richard Norris, María Mercedes Gómez, Irene García-Pérez, Nicole Leonard, Jian-xin Zhao, Kimberly García-Méndez, and @odealab.bsky.social
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Reposted by Jon Cybulski
Erin Dillon @erinmdillon.bsky.social · 13/08/2026
How many #sharks should there be on a coral #reef? Our new publication in Science tackles this question using thousands of fossil shark dermal denticles—tiny, tooth-like scales that are shed and preserve in sediments—from Panama's two oceans. Check it out here: doi.org/10.1126/scie...
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Jon Cybulski @jonscibulski.bsky.social · 28/02/2026
#isoecol2026 is now live for abstract and workshop submission! Come join us in Hong Kong! DM with any questions and please share!
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Jon Cybulski @jonscibulski.bsky.social · 08/02/2026
Thank you for coming!
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Reposted by Jon Cybulski
Erin Dillon @erinmdillon.bsky.social · 22/01/2026
Thanks to my amazing coauthors: Rodnyel Arosemena, @jonscibulski.bsky.social , Brígida De Gracia, @sethf.bsky.social , @otolith-lin.bsky.social , Javiera Mora, Sven Pallacks, and @odealab.bsky.social !
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Reposted by Jon Cybulski
Erin Dillon @erinmdillon.bsky.social · 22/01/2026
By analyzing thousands of otoliths preserved in sediments, we found that fish were larger on average at death on reefs in Pacific Panama, compared to those along the Caribbean coast, and that this difference has widened over time.
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Reposted by Jon Cybulski
Erin Dillon @erinmdillon.bsky.social · 22/01/2026
New paper out today! "Fossil otolith assemblages reveal millennial-scale changes in reef fish biomass and trophic structure across the Isthmus of Panama" 🔓https://doi.org/10.1098/rstb.2024.0419 We used fossil fish otoliths to reconstruct community structure and energetics over millennia.
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Jon Cybulski @jonscibulski.bsky.social · 26/11/2025
A juvenile bull shakr found in Hong Kong ! sc.mp/s2ygf?utm_so...
sc.mp
Bull shark found stranded in Hong Kong mudflats returned to sea by residents
Despite being caught in Pak Nai fishing nets, scientist says presence of juvenile shark suggests city’s ‘abused’ marine ecosystem is recovering.
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Jon Cybulski @jonscibulski.bsky.social · 23/11/2025
The @swimshku.bsky.social whale has returned!
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Reposted by Jon Cybulski
Erin Dillon @erinmdillon.bsky.social · 19/11/2025
Final reminder to consider submitting an abstract to join our thematic session on "Reefs through time" at the @icrs.bsky.social meeting next July. The call for abstracts closes Dec 1! See below for details. Hope to see you there!
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Jon Cybulski @jonscibulski.bsky.social · 20/11/2025
We are so excited to welcome such a great addition to #HKU Science! Can't wait to collaborate!
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Jon Cybulski @jonscibulski.bsky.social · 07/11/2025
New paper alert! "Isotopic evidence of increased societal diversification in Pre-Columbian Panama" www.researchgate.net/publication/...
researchgate.net
(PDF) Isotopic evidence of increased societal diversification in Pre-Columbian Panama
PDF | The Pre-Columbian history of Panama stands in unique contrast to the state-level societies of Mesoamerica to the north and the Andes to the south.... | Find, read and cite all the research you n...
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Jon Cybulski @jonscibulski.bsky.social · 02/10/2025
New paper alert! See press release here! Palaeonology: A small subject has big questions www.fau.eu/2025/09/news...
fau.eu
Palaeonology: A small subject has big questions
The involvement of around 200 researchers from over 30 different countries and more than five years’ work have resulted in 89 “Big Questions” – the most important research questions in paleontology…
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Reposted by Jon Cybulski
Erin Dillon @erinmdillon.bsky.social · 24/09/2025
Work on reef paleoecology? Join our session "Reefs through time: leveraging today's interdisciplinary tools to better understand the past of reef organisms and ecosystems" at the 2026 International Coral Reef Symposium 📆Abstract deadline: Dec 1, 2025 🔗https://www.icrs2026.nz/call-for-abstracts
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Jon Cybulski @jonscibulski.bsky.social · 25/09/2025
Our @icrs.bsky.social 2026 session is now open for abstract submission! Consider it if you work on reef systems through time!
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Reposted by Jon Cybulski
Aaron O'Dea @odealab.bsky.social · 02/09/2025
📊 new paper! The natural phenomenon of upwelling, which normally occurs every year in the Gulf of Panama, failed for the first time on record in 2025... www.pnas.org/doi/10.1073/... [most co-authors not on bluesky except @javsdiaz.bsky.social @jonscibulski.bsky.social]...
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Reposted by Jon Cybulski
The Swire Institute of Marine Science (SWIMS) @swimshku.bsky.social · 01/09/2025
SWIMS will be a very busy place from tomorrow because Integrative Marine Ecology & Conservation (IMEC) MSc has launched! Tomorrow, forty-four students will start their journey at SWIMS and HKU. Their first class – Ocean Biodiversity, is at 9am. Welcome to SWIMS, everyone! @jonscibulski.bsky.social
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Reposted by Jon Cybulski
The Swire Institute of Marine Science (SWIMS) @swimshku.bsky.social · 01/08/2025
Dr Jon Cybulski @jonscibulski.bsky.social talks about the story of his latest paper: Historical Ecology of the Southern Central American Pacific Coast. With @odealab.bsky.social More: royalsocietypublishing.org/doi/10.1098/... #marinescience #centralamerica #humanspecies #sustainability
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Jon Cybulski @jonscibulski.bsky.social · 01/08/2025
I second the curiosity about oxygen production - what % do you have the ocean producing? I often see ~50% as well (not air as the article states, but O2 as you say)
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Jon Cybulski @jonscibulski.bsky.social · 28/07/2025
Awesome postdoc opportunity with some really great people. If you are interested in spatial paleoecology, take a look and spread the word!
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Jon Cybulski @jonscibulski.bsky.social · 14/07/2025
I have never been more honoured. My overhead mobility looking great.
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Jon Cybulski @jonscibulski.bsky.social · 11/07/2025
"We are all ocean connected" stri.si.edu/story/we-are... Official #Smithsonian press release now out! @aesharpe.bsky.social
stri.si.edu
We Are All Ocean Connected
Marine resource use has influenced human population on the Central American Isthmus for millennia
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
I want to end by saying how special this article was to lead. It really was a beautiful team effort that brought it together, and I am very proud to have represented the Isthmus and #STRI #Smithsonian with this work. SCIENCE SHOULD BE COLLABORATIVE AND MEANINGFUL. I hope you agree, and enjoy!
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
This was all part of the wonderful special edition "Shifting Seas: Understanding Deep-Time Human Impacts on Marine Ecosystems" in @royalsocietypublishing.org led by editor @lukeeholman.bsky.social Illustration: Jacek Matysiak
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
Español abstract in supplements, along with español case-studies as well! doi.org/10.6084/m9.f... Pay wall? DM for pdf!
doi.org
Supplementary material from
The Pacific coast of the Southern Central American Isthmus is a highly productive and biodiverse region with a rich human history. Although the interaction of the oceans, climate, biodiversity, and ea...
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
This would COULD NOT BE POSSIBLE without my wonderful co-authors and discipline experts (most not on BS) such as: @erinmdillon.bsky.social @odealab.bsky.social and the rest Photos: @leilanilipour.bsky.social and Jorge Alemán
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
We tried hard to fuse stories of oceans, climate, biodiversity, and early human systems to bring focus to this incredible region of study, with a hope and a need to attract more attention to it in the future! photo: @leilanilipour.bsky.social
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
Our work emphasises the importance of ocean–land connections for Isthmian peoples and the critical balance of livlihoods, research, and conservation efforts needed to ensure its future sustainability. Photo: @leilanilipour.bsky.social
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
We identified three major transitions of Isthmian peoples relationships with the #ocean and its resources: 1) The shift to agriculture after megafauna extinction, 2) rising sea levels and the novel ecosystems they created, 3) Spanish colonisation and the globalisation of resource extraction
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
Using #STRI's vast zooarch collections, we found intersting diet trends showing the diversity of ecosystems peoples relied on over many thousands of years
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
My fav part was the incredible case-studies co-authors #nicole #brigida #irene @odealab.bsky.social @erinmdillon.bsky.social told about shell fishing, the pearl oyster industry, and the history of indigenous peoples under Spanish occupation. All BEAUTIFUL illustrations: @cookedillustrations.com
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
Our proudly interdisciplinary team of paleobiologists, archaeologists, anthropologists, and global change researchers worked hard to combine vast datasets that would be intersting to a wide suite of readers. Everything from zooarchaeology to sea level change! Photo: Jorge Alemán
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Jon Cybulski @jonscibulski.bsky.social · 10/07/2025
🌊Just out! We reviewed the history of human-ocean interactions, focusing on the Pacific coast of the Southern Central Asmerican Isthmus (Panamá and Costa Rica). Over 16K years of stories on culture, environment, and ecology! royalsocietypublishing.org/doi/epdf/10.... Illustration: Madeline Dall
royalsocietypublishing.org
Historical ecology of the Southern Central American Pacific coast | Philosophical Transactions of the Royal Society B: Biological Sciences
The Pacific coast of the Southern Central American Isthmus is a highly productive and biodiverse region with a rich human history. Although the interaction of the oceans, climate, biodiversity and early human systems has shaped the region’s ecology, ...
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Jon Cybulski @jonscibulski.bsky.social · 02/07/2025
Very excited for our new @pnas.org manuscript investigating changes in “big and little fish” ecology over the last several thousand years in the Caribbean! See awesome thread by @odealab.bsky.social below. Go collaborative science team!!
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