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Julianna Renzi

@juliannarenzi.bsky.social
486 followers 175 following 11 posts

PhD student and invert enthusiast studying marine ecology at UC Santa Barbara | she/her/hers | juliannarenzi.webflow.io

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Reposted by Julianna Renzi
Anthony Ricciardi @ecoinvasions.bsky.social · 22/09/2026
Classic example of invasional meltdown. The ants have a mutualism with introduced scale insects. Ant attacks have severely reduced native land crabs, thus altering the forest understory & lowering resistance to invasion by giant African land snails. #bioinvasions scienceofficial.org/nature/yello...
scienceofficial.org
Yellow Crazy Ants Defeat Red Crabs with Chemical Attack on Christmas Island
BBC footage shows yellow crazy ants using formic acid to overpower red crabs, highlighting an invasive species crisis that has devastated Christmas Island's ecosystem for decades.
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Dr Craig R McClain @drcraigmc.bsky.social · 31/08/2026
New in PNAS today: we projected how climate change will reshape the body size of marine life across the entire ocean. 23,329 mollusc species, every ocean basin. The headline everyone expects is "life shrinks." The real answer is far stranger. 🧪 #marinelife www.pnas.org/doi/10.1073/...
pnas.org
Nonuniform resizing of marine life under climate change | PNAS
Global warming is often predicted to drive universal declines in animal body size, but empirical evidence remains equivocal. This is particularly t...
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Christina Hicks @christinahicks.bsky.social · 20/08/2026
Delighted to launch a new @leverhulme.ac.uk Doctoral program on Food for Nature & Society: 30 PhD’s /w postdoc transition Details & projects to follow, 1st cohort Oct 2027 @doug-orr.bsky.social @profjessdavies.bsky.social @nickajgraham.bsky.social @ecarmosilva.bsky.social 📰 tinyurl.com/4v5yn28h
tinyurl.com
New ‘Food for Nature and Society’ doctoral programme to fund 30 PhDs - Lancaster University
Lancaster University is launching a new ‘Food for Nature and Society' doctoral training programme to tackle our contemporary food system crises, while also protecting our planet.
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Sal Keith (she/her) @salkeith.bsky.social · 31/07/2026
RECRUITING 3 Senior Research Associates to develop responsible AI-enabled approaches to unlock animal behaviour for conservation. Roles include: 🧠 AI/Computer Vision 🐠 Behavioural Ecology 🌊 Marine Field Ecology Join @lec-reefs.bsky.social & @dsailu.bsky.social, Lancaster Uni, UK. Ads coming soon!
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The Xerces Society for Invertebrate Conservation @xercessociety.bsky.social · 31/07/2026
Welcome to our new #PlantsForMonarchs tool! Browse native plants by location, filter by plant type, growing conditions, & more, and find local or online suppliers that have those plants for sale! 🦋🌼👀 ➡️ plantsformonarchs.org
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Julianna Renzi @juliannarenzi.bsky.social · 19/07/2026
At #ICRS2026 and interested in learning about how fishing influences what kind of coral morphologies persist on reefs? Swing by the Te Paepae Theatre on Tuesday at 10:30 to hear about some cool new research we've been working on 🪸 @icrs.bsky.social
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Julianna Renzi @juliannarenzi.bsky.social · 27/05/2026
Tried our hand at a milkweed toxin-aphid-ant system today under the guidance of @mixotrophe.bsky.social -- not sure if my "ladybug" looks more like a toaster or a sandwich..
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Julianna Renzi @juliannarenzi.bsky.social · 16/04/2026
Well-deserved!
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Reposted by Julianna Renzi
Science Magazine @science.org · 09/04/2026
In a decades-long study, researchers have documented what appears to be the first observed “civil war” in wild chimpanzees. The findings demonstrate that shifting social ties alone can fracture a once unified group and ignite sustained, deadly conflict among former allies. scim.ag/47QE8Qw
Prior to the permanent fission, chimpanzees from different social clusters interacted
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Stephen Heard @stephenbheard.bsky.social · 19/03/2026
Good news: as so often happens, the headline doesn't capture how interesting this is - and what a positive case for humour there is.
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Reposted by Julianna Renzi
Stephen Heard @stephenbheard.bsky.social · 10/03/2026
We're often rather good at spotting "errors" in student writing. But are they always, really, errors? On four different kinds of writing "errors", and how we ought to respond to them.
scientistseessquirrel.wordpress.com
Four kinds of writing “errors”, and how you might respond when you spot them
When you’re working with a developing scientific writer, you may be doing a lot of different things – but one thing you’re almost certainly doing is reading drafts and making suggestions for improv…
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Julianna Renzi @juliannarenzi.bsky.social · 10/03/2026
New paper out led by Lauren Toth! As the climate gets more out-of-the-box, so, too, must management strategies. But, it's not one-size-fits-all--understanding where your system is relative to its historic regime is critical for deciding paths forward conbio.onlinelibrary.wiley.com/doi/10.1111/...
conbio.onlinelibrary.wiley.com
Scenarios and strategies for future‐proofing ecosystem management under climatic novelty
Climate change is driving unprecedented declines in dominant, habitat-forming foundation species across marine and terrestrial ecosystems globally. As climatic novelty becomes the norm, ecosystem rea...
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Ecological Dynamics Dept. | IZW Berlin @ecodynizw.bsky.social · 02/03/2026
Our package estar for quantifying ecological stability is out: MEE @britishecologicalsociety.org! Provides 11 stability metrics for measuring stability at different levels of organization, from individuals to populations, communities + ecosystems. besjournals.onlinelibrary.wiley.com/doi/10.1111/...
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Juan Carvajal-Quintero @juancarvq.bsky.social · 19/02/2026
New paper out examining fish food web degradation in the Anthropocene. We show the structure of aquatic food webs are changing-- even when species richness doesn’t. These signals are strongly associated with decreases in body size within fish communities. www.science.org/doi/10.1126/... 🌐🐠🐡🦈🐟
science.org
Degradation of fish food webs in the Anthropocene
The decrease in body size driven by the selective species turnover is widely altering fish food web topology and function.
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Holly Bik @hollybik.bsky.social · 16/02/2026
We are hiring at UGA! We’re looking for a full professor & director of the Skidaway Institute of Oceanography (based right on the coast in Savannah, GA). Please pass on the job ad to anyone in your networks who may be interested: www.ugajobsearch.com/postings/468...
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Julianna Renzi @juliannarenzi.bsky.social · 13/02/2026
If you're an early career researcher interested in synthesis science you should apply to the @uslter.bsky.social's Synthesis Skills for Early Career Researchers course! I loved being a SSECR fellow and the program is being offered again this year, albeit with a few changes 📉 lternet.edu/ssecr/
lternet.edu
Synthesis Skills for Early Career Researchers - LTER
Group synthesis projects have the potential to develop high impact science and build strong supportive colleague networks—but they demand a set of skills that are rarely taught. In 2026, LTER launches...
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Julianna Renzi @juliannarenzi.bsky.social · 13/02/2026
Got to give my first calculus-based ecology lecture today.. I don't think I'll be winning any points for handwriting, but maybe some points for enthusiasm about coral-algal competition? 🪸 📝
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Nature Portfolio @natureportfolio.nature.com · 19/01/2026
The sleep patterns of jellyfish and sea anemones share similarities with those of humans, according to research published in Nature Communications. The findings support the hypothesis that sleep evolved across a range of species to protect against DNA damage. 🧪
go.nature.com
DNA damage modulates sleep drive in basal cnidarians with divergent chronotypes - Nature Communications
Here, the authors use the diurnal upside-down jellyfish and the crepuscular starlet sea anemone as simple nerve net models to examine the potential evolutionary origins of sleep. They describe and define sleep patterns in these species, finding that sleep deprivation increases neuronal DNA damage and that sleep facilitates genome stability.
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Alice Auersperg @auersperga.bsky.social · 19/01/2026
Our new paper (with @biotay.bsky.social) is out and on the cover story of @currentbiology.bsky.social !!!! Veronika, a Carinthian mountain cow flexibly uses a “multi-purpose tool” to scratch herself. A video and more information will follow in the comments. www.cell.com/current-biol...
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Long Term Ecological Research Network (United States) @uslter.bsky.social · 16/01/2026
LTERs are great training grounds for the sort of multi-talented researchers that modern ecology needs. We combine multi-disciplinary field experiences with decades of contextual data. @ilter-network.bsky.social www.nature.com/articles/d41...
nature.com
‘I rarely get outside’: scientists ditch fieldwork in the age of AI
In the race to embrace new technologies, some ecologists fear their field is losing touch with nature.
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Dr. Joan Dudney @dudney-joan.bsky.social · 18/12/2025
Please repost! The LOC Lab @UCSB is recruiting a #PostdoctoralScholar in forest ecology and data science to develop data-driven models of forest resilience to compound disturbances (e.g., fire, drought, insects). 🌱🍁🌏🧪🌐 Applications due Feb 5 Apply here: www.landscapesofchangelab.com/were-hiring-1
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Scripps Institution of Oceanography @scrippsocean.bsky.social · 29/09/2025
🐟 Not all fish are cold-blooded! New research led by @arciladk.bsky.social, curator of the Marine Vertebrate Collection & recent PhD grad Fernando Melendez, explores how ecological interactions + evolutionary innovation reshaped life in the ocean. 🌊
youtube.com
Why did some fishes evolve to be warm-blooded? - Dahiana Arcila and Fernando Melendez
YouTube video by FishEvolutionLab-Edu
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Daniel Bolnick @danielbolnick.bsky.social · 29/09/2025
NSF unexpectedly changed (at the last minute) who is eligible to apply for the Grad Research Fellowship, dropping 2nd year students. We started a petition to reverse this unfair change, Sign here: laurenkuehne.github.io/grfpChanges/ and please spread the word!!!!
laurenkuehne.github.io
Petition to NSF to Restore Eligibility for the 2026 Graduate Research Fellowship Program Competition
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Nature @nature.com · 03/09/2025
How is this possible? This ant can lay eggs of two different species, birthed by the same mother
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joeymaier 🌊 @joeymaier.bsky.social · 04/09/2025
PNAS paper about this year's missing #ocean #upwelling along the coast of #Panama share.google/pWxTjMwVl5Lh...
share.google
Unprecedented suppression of Panama’s Pacific upwelling in 2025 | PNAS
The Gulf of Panama’s (GOP) seasonal upwelling system has consistently delivered cool, nutrient-rich waters via northerly trade winds every January–...
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Chuliang Song @clsong.com · 02/09/2025
www.journals.uchicago.edu/doi/10.1086/... A truly delightful read by Judith Bronstein reflecting on the state of mutualism studies. It's a thoughtful look at where the field has been and where it's going—and such beautiful writing as well!
journals.uchicago.edu
The Study of Mutualism, Past, Present, and Future | The American Naturalist: Vol 0, No ja
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Professor Jodie Rummer @physiologyfish.bsky.social · 18/06/2025
Sharks come in many different shapes and sizes. But they all follow a centuries-old mathematical rule theconversation.com/sharks-come-...
theconversation.com
Sharks come in many different shapes and sizes. But they all follow a centuries-old mathematical rule
A new study proves for the first time that the ‘two-thirds scaling law’ applies to large animals as well as small ones, offering key lessons for conversation.
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Peter Gleick @petergleick.bsky.social · 31/05/2025
There are 2 previous historical cases of countries destroying their science and universities, crippling them for decades: Lysenkoism in the USSR and Nazi Germany. The Trump administration will be the 3rd. It's not just budgets but research, institutions, expertise, and training the next generation.
Graphs showing 25 years of budgets for the National Institute of Health, NASA, and the NSF. In all cases, the proposed budget for next year is far, far below any year of the previous quarter century.
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Anthony Ricciardi @ecoinvasions.bsky.social · 23/05/2025
"Thinking time —the time needed to concentrate without interruptions has always been central to scholarly work. It is essential to designing experiments, compiling data, assessing results, reviewing literature and, of course, writing. Yet, [it] is often undervalued." www.nature.com/articles/d41...
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 22/05/2025
NSF Physics was cut by 85%, basically wiping out most of its capacity for supporting research. NSF Astronomy was cut by 53% Undergrad education was cut by 71% and research on learning by 79% Graduate education was cut by 100% to ZERO. #GiftLink ⚛️🔭 www.nytimes.com/interactive/...
nytimes.com
Trump Has Cut Science Funding to Its Lowest Level in Decades (Gift Article)
The lag in funding extends far beyond D.E.I. initiatives, affecting almost every area of science: chemistry, computing, engineering, materials and more.
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Julianna Renzi @juliannarenzi.bsky.social · 19/05/2025
Tune in to check out what we've been working on all year! :)
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Science Magazine @science.org · 09/05/2025
Exclusive: National Science Foundation staff were told today that the agency’s 37 divisions—across all eight directorates—are being abolished and the number of programs within those divisions will be drastically reduced.
scim.ag
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
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Jason Dinh @byjasonpdinh.bsky.social · 02/05/2025
not to mention, science is GOOD FOR THE ECONOMY per this report that came out yesterday: -a 25% reduction in government science would result in GDP loss comparable to that seen during the Great Recession -at 75% cuts, GDP declines reach levels not seen since the Great Depression 🧪
impa.american.edu
Preliminary Estimates of the Macroeconomic Costs of Cutting Federal Funding for Scientific Research – Institute for Macroeconomic & Policy Analysis
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Stand Up for Science! @standupforscience.net · 02/05/2025
🔔BREAKING🔔 The NSF has frozen all research grant awards—cutting off life-saving science midstream and demanding ideological screenings for future funding. This is censorship disguised as oversight. Here’s how you can help us spread the word ➡️🧵(1/3): www.nature.com/articles/d41...
nature.com
Exclusive: NSF stops awarding new grants and funding existing ones
US science funder also plans to screen grant applications for compliance with ‘agency priorities’.
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Climate Tracker @climate.skyfleet.blue · 23/04/2025
More than 80% of the world’s reefs hit by bleaching after worst global event on record #Climate
theguardian.com
More than 80% of the world’s reefs hit by bleaching after worst global event on record
An ashen pallor and an eerie stillness all that remains where there should fluttering fish and vibrant colours in the reefscape, one conservationist says
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Jenn Coughlan @jenncoughlan.bsky.social · 01/05/2025
We're hiring an assistant prof in global change ecology! Apply!!! We're vibrant, supportive, and interdisciplinary EEB community! Plz note the weird dates: We're reviewing applications beginning on ✨August 15th✨. I'm part of the SC and happy to answer questions! apply.interfolio.com/164677
media.tenor.com
a netflix ad shows a woman talking to another woman at a vending machine
ALT: a netflix ad shows a woman talking to another woman at a vending machine
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Eos @eos.org · 17/04/2025
NOAA has quietly reported that they will soon decommission 14 datasets, data products, and catalogs related to marine, coastal, and estuary science and earthquakes. Story by @astrokimcartier.bsky.social. eos.org/research-and...
eos.org
NOAA Datasets Will Soon Disappear - Eos
NOAA has quietly reported that they will soon decommission 14 datasets, products, and catalogs related to earthquakes and marine, coastal, and estuary science.
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Simon J. Brandl @gobyone.bsky.social · 24/03/2025
In 2019, we showed that tiny, bottom-dwelling fish can fuel coral reef energy fluxes. In our new paper, we reveal a dramatic dichotomy in their functional role across coral reef habitats separated by a few 100 meters. esajournals.onlinelibrary.wiley.com/doi/full/10.... @esajournals.bsky.social
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Long Term Ecological Research Network (United States) @uslter.bsky.social · 19/03/2025
The LTER is great because we can support ecologists through their whole career. Next community call is about getting folks into the network! Recruiting and Retaining Scientists in the LTER: How to find and keep the best and the brightest! 🌟 March 26, 9am PT—register! lternet.edu/events/recru...
lternet.edu
Recruiting and Retaining Scientists in the LTER: How to find and keep the best and brightest! - LTER
Please join us for a lively conversation - bring your ideas, success stories, and favorite resources to share how we can collectively work to recruit and retain the best and brightest across the LTER ...
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Jenn Fehrenbacher @jennfehrenbacher.bsky.social · 19/03/2025
OSU is hiring! Come work at CEOAS - Open rank faculty position and director of the Oregon State Stable Isotope Laboratory. My network is small on Bluesky, please share widely! Reach out if you have questions about living in Corvallis or about CEOAS specifically. jobs.oregonstate.edu/postings/165...
jobs.oregonstate.edu
Oregon State University Jobs Portal | Assistant/Associate/Full Professor | Print Preview
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Nature Ecology & Evolution @natecoevo.nature.com · 17/03/2025
A global analysis of altered species compositions and climate change reveals the extent to which ecosystems, including in protected areas and biodiversity hotspots, are exposed to novel conditions due to anthropogenic forces rdcu.be/edTpA
rdcu.be
Widespread ecological novelty across the terrestrial biosphere
Nature Ecology & Evolution - Even outside urban and agricultural areas, ecosystems are vastly transformed as a result of human activities. Here the authors map patterns in climate change,...
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Jacob Weverka @weverkaj.bsky.social · 05/03/2025
What a great time at the EEMB graduate student symposium last week! It’s fun presenting my work, but even better seeing all my peers shine! Great job everyone and thanks to the organizers.
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Blake Ushijima, Ph.D. @vibriosoup.bsky.social · 02/03/2025
www.science.org/content/arti...
science.org
NSF downsizes summer research program for undergraduates
Many participants are from groups underrepresented in science
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Phil Levin @phillevin.bsky.social · 01/03/2025
Sea Grant is a powerhouse for coastal communities! Through research, education, and outreach, it helps protect marine ecosystems, support sustainable fisheries, and boost coastal economies. Sea Grant keeps our waters and communities thriving. We need sea grant! www.pressherald.com/2025/03/01/m...
pressherald.com
Maine Sea Grant in jeopardy after Trump administration terminates $4.5 million grant program
The move to discontinue the four-year agreement — which comes amid the White House's efforts to slash the National Oceanic and Atmospheric Administration's budget — leaves the fishery organization’s p...
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Bibi van der Zee @bibivanderzee.bsky.social · 26/02/2025
Does a worm feel pain? Many thanks to the wonderful @vickihird.bsky.social for her meditation on invertebrate sentience - don't forget to vote for your favourite! www.theguardian.com/environment/...
theguardian.com
Do worms feel pain and are ants happy? Why the science on invertebrate feelings is evolving
For the next few weeks we’re asking readers to nominate their invertebrate of the year: click here to give us your suggestions
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Jason Dinh @byjasonpdinh.bsky.social · 26/02/2025
he was a National Park biologist whose job was to make their wildlife work more efficient using AI, drones, and other technology. so to be terminated by a tech mogul under the guise of "government efficiency" was a cruel and bitter irony today's op-ed in @atmosmagazine.bsky.social 🌎🧪
atmos.earth
Terminated Parks Employee Warns of the Danger and Cruelty of Job Cuts | Atmos
His job was to make wildlife monitoring at the NPS faster and cheaper—so getting dismissed for “government efficiency” was a bitter irony.
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ICRS International Coral Reef Society @icrs.bsky.social · 26/02/2025
It’s ICRS Awards time! Are you a post graduate student or early career scientist looking to support your research? Check out our Graduate Fellowships and Ruth Gates Fellowships. Deadline March 15. Details on these Fellowships and more exciting awards at: coralreefs.org/awards-and-h...
coralreefs.org
Awards, Honors & Fellowships - International Coral Reef Society
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Mark Joseph Stern @mjsdc.bsky.social · 28/01/2025
Trump is attempting to unilaterally freeze trillions of dollars in federal spending that’s been duly appropriated by Congress. This is completely insane and illegal. He’s seizing unlawful control over the constitutional spending power? Five alarm fire www.washingtonpost.com/business/202...
washingtonpost.com
White House pauses all federal grants, sparking confusion
The Trump administration has put a hold on all federal financial grants and loans, affecting tens of billions of dollars in payments.
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 19/09/2024
If you hate statistics like I do, then you'll love my free lectures. Putting science before statistics, 20 lectures from basics of inference & causal modeling to multilevel models & dynamic state space models. It's all free, made with love and sympathy. 🧪 #stats www.youtube.com/playlist?lis...
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Dan Holstein, PhD @drdanholstein.bsky.social · 24/01/2025
Come work with us! We are hiring a postdoc to assist in several ongoing projects in coral reef larval and disease ecology. Successful candidates will have interests in numerical modeling. Experience in coral larval husbandry/ex-situ spawning is a plus. Please reach out with questions, and repost!
stonybrooku.taleo.net
Postdoctoral Associate / Senior Postdoctoral Associate
Click the link provided to see the complete job description.
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