Isaac Pesca
@isaacpesca.bsky.social
My research focuses on understanding how biodiversity changes in space and time and how disturbances, such as global fisheries and climate change, affect those patterns.
Huge congratulations to lead author Isaac Trindade-Santos, and to coauthors Tom Webb, Noel Heim, and the team. Built on the MOBS database and OBIS. Open access, all code and data public. 🧪 #HowToBuildAGiant #marinelife Paper: doi.org/10.1073/pnas...
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...
doi.org
It matters beyond size. Shifts in the size structure of ocean life ripple into carbon storage, nutrient cycling, and the seafood billions of people depend on. And the gap between low and high emissions is enormous, so the scale of this is still ours to decide. 🧪 #marinelife
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/...
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...
pnas.org
My university wrote up our new $2M NSF project, and I got to say the thing I believe: the deep sea isn't empty, it's just unread. We're using DNA to read it at a resolution nobody has tried, sampling the abyssal plain to find who really lives there. 🧪 #marinelife louisiana.edu/news/ul-lafa...
UL Lafayette biologist receives NSF award to investigate deep-sea biodiversity
How far do deep-sea species range, and how many remain undiscovered?
louisiana.edu
Coast redwoods top 100 meters, and at that height pulling water up from the roots nearly fails. Their fix: absorb fog straight through their needles. That is why they only grow in California's coastal fog belt. The tallest trees on Earth cheat physics with fog. 🧪 #HowToBuildAGiant #plants
Insects are diverse, adaptable, remarkable. 🪲 But researchers face a challenge: the period of systematic monitoring reflects human influence and the true baseline is unknown. On #InsideBiodiversity, @roelvanklink.bsky.social shares what long‑term data reveals. 🎧 insidebiodiversity.podigee.io
Samba Day is a Soul Recharging Day! Brazilian Culture in Lafayette, Louisiana.
Mantella baroni
Matheus Moroti@mmoroti.bsky.social · 6mo agoWhy do some islands have more biodiversity than others? In our new paper, published in @ecography.bsky.social , we sought to answer this question for amphibians! 🌐🏝️🐸 @provete.bsky.social @agenciafapesp.bsky.social @wileyecology.bsky.social Follow the thread 🧵(1/7).
Meet the #BES2025 SIGs on floor -1! We’ll be heading to our social at Frankenstein later too! Come say hi to some of our committee: @inesismartins.bsky.social @bethanyjallen.bsky.social @lauraloubio.bsky.social
Planetary boundaries are not always protective. Guest Helmut Hillebrand warns that setting limits can lead to their full exploitation. 💬 “Having a boundary… will always lead to the complete use of that space.” 🎧 Hear more on #InsideBiodiversity: insidebiodiversity.podigee.io
The hidden biodiversity knowledge split in biological collections #ProcB #BiologicalSciencePractices #OpenAccess royalsocietypublishing.org/doi/10.1098/...
💬This month @smartenwinter.bsky.social joins idiv's #InsideBiodiversity to explore how non-native species challenge assumptions about nature, balance, and biodiversity. Dive into the grey areas of conservation, where values, data, and definitions collide. 🎧 Listen now: insidebiodiversity.podigee.io
“Many scholars from historically overexploited countries (often referred to as the global south) expected that exposing the problem would trigger change. Four years on, I see it clearly: the scientific system was never designed for equity,” writes Dolors Armenteras in Nature. #Academicsky 🧪
Equity in science is a beautiful lie — and I’m done pretending
Science isn’t really moving towards equity; institutions are just perfecting the appearance of equity. We need to build an alternative system.
go.nature.com
A study in Nature Climate Change shows that the ocean carbon sink unexpectedly declined in 2023 despite record-high sea surface temperatures (SSTs), primarily due to SST-driven outgassing of CO2 in the subtropics. 🌊 🧪
Unexpected decline in the ocean carbon sink under record-high sea surface temperatures in 2023 - Nature Climate Change
The ocean carbon sink strengthened in previous warm El Niño years due to reduced CO2 outgassing in the tropics. Here the authors show that the ocean carbon sink declined in 2023 despite record-high sea surface temperatures (SSTs), primarily due to SST-driven outgassing of CO2 in the subtropics.
go.nature.com
A Nature Careers feature explores the ways scientific societies, journals, editors and researchers are pushing back against mean-spirited peer reviews. #Academicsky 🧪
‘Lipstick on a pig’: how to fight back against a peer-review bully
Scientific societies, journals, editors and researchers are pushing back against mean-spirited peer reviews.
go.nature.com
In our new Nature Communications article led by Rashmi Paudel, we show that plant species that spread within their native range have a higher probability of becoming established outside their native range. 🔗https://doi.org/10.1038/s41467-025-63293-6 🔗Sharable PDF link: rdcu.be/eEmQr
A tree diving in the blue sky seeking for the moon's light... #photography #moon #madrugada #luzdalua #moon #lua #hobby #nature #sky
Taxonomy is under constant change; species classification is revised continuously, and changes accumulate affecting biodiversity metrics & generating uncertainty that is rarely assessed. Juliana Stropp review how taxonomic changes have changed the observed Amazonian palm richness patterns 👇🧪🌐 #NICED
The impact of taxonomic change on the Amazonian palm flora | Proceedings of the Royal Society B: Biological Sciences
Although taxonomy is an evolving discipline, taxonomic change is rarely accounted for in macroecological studies. By tracking the history of species descriptions and synonymizations of Amazonian palms...
doi.org
I've wanted to write this article for years. About my and other's struggles to even survive sometime in #academia. Thank you to the amazing editors at @plosbiology.org that gave me the forum to write this piece. #science
Too poor to science: How wealth determines who succeeds in STEM
From student to researcher, a career in science can come with a high price tag. This Perspective explores how persistent financial barriers limit who can succeed in science, revealing how wealth shape...
journals.plos.org
🌀Turnover vs. Loss — local biodiversity isn't declining as expected. 🔄 Some species disappear, others appear — so does overall richness change? 🧐 In this #InsideBiodiversity episode, @jon-chase03.bsky.social explains why reality is challenging assumptions. 🔗https://insidebiodiversity.podigee.io/
"Using a simulation approach, we asked how disturbances might have affected regional patterns of β-diversity, following the ‘Mariana disaster’ at the Bento Rodrigues dam in the Doce River Basin." www.sciencedirect.com/science/arti...
Simulating shifts in taxonomic and functional β-diversity of ray-finned fishes: Probing the Mariana disaster
Environmental catastrophes may precipitate local species extinctions, hence altering community composition (i.e., β-diversity) at the regional scale. …
sciencedirect.com
A bit of Friday fun: I matched the 85K marine species in our new MOBS database to 65M occurrence records in @obis.org and mapped them. Here's where we now have at least some information about the size of marine species - i.e., more or less everywhere! (cc @drcraigmc.bsky.social)
🧵New paper + open database drop! The Marine Organismal Body Size ( #MOBS ) Database is now live—85,000+ marine species, from plankton to whales, with standardized size data. A huge leap for biodiversity, conservation, and climate science. #science #marinelife onlinelibrary.wiley.com/doi/10.1111/...
MOBS 1.0: A Database of Interspecific Variation in Marine Organismal Body Sizes
Motivation Body size is a fundamental trait influencing an organism's life history, ecology, physiology and evolutionary dynamics. While extensive body-size databases exist for terrestrial vertebrat...
onlinelibrary.wiley.com
