Sign in

David Jacoby

@netlab.bsky.social
288 followers 249 following 7 posts

Shark fanatic, with interests in movement ecology, network analysis and applied conservation.

PostsRepliesMedia
Reposted by David Jacoby
Ecology of Animal Societies @livingingroups.bsky.social · 06/05/2026
Is bigger always better? For social animals, group size is a dilemma: big groups face more internal competition, yet hold an edge over smaller neighbors. 33 years of data on 12 wild capuchin groups reveals how these forces shape behavior. Out today in *Nat Eco & Evo*: www.nature.com/articles/s41...
14931
David Jacoby @netlab.bsky.social · 17/07/2025
#Angelsharks may be more vulnerable to #ClimateChange than we thought! Out today in @globalchangebio.bsky.social: doi.org/10.1111/gcb.... @lancasteruni.bsky.social @zslofficial.bsky.social @ulpgc.es @qmul.bsky.social @leibniz-gemeinschaft.de @lec-reefs.bsky.social 📸 @nuno_vasco_rodrigues
@sharkconservationfund @canbiocanarias @saveourseasfoundation @oceantrackingnetwork @wwfnederland @nercscience @deutsche_elasmobrancier_ges
0135
Reposted by David Jacoby
Mara Fischer @marafischer.bsky.social · 09/07/2025
Great way to start day 3 of #FSBI2025! 🏃‍♀️🐠
042
Reposted by David Jacoby
Nicole 🪲 @fossilforager.bsky.social · 08/07/2025
A lil tribute to the kelp forests along the California coast 🌊✨
An illustration featuring a leopard shark, bat ray, and the California state marine fish: the garibaldi. They are swimming next to giant kelp and illustrated on a vibrant blue background.
685653796
David Jacoby @netlab.bsky.social · 08/07/2025
Great talk by @mjw-marine.bsky.social on the predictability of European eel aggregations for improved #trap&transport management. @thefsbi.bsky.social
031
Reposted by David Jacoby
Yannis Papastamatiou @dr-yannis.bsky.social · 27/06/2025
New paper lead by @etspencer.bsky.social We use biologging to understand why great hammerheads may specialize on large prey like other sharks. If they hunt blacktips off south Florida then they probably only have to catch a shark once per month link.springer.com/journal/442
1176
David Jacoby @netlab.bsky.social · 26/06/2025
Happy International Angel Shark Day, especially to all my wonderful colleagues @angelsharkproject.bsky.social These are a special, and heavily threatened set of species.
050
Reposted by David Jacoby
Oceana UK @oceanauk.bsky.social · 10/06/2025
🎉 MAJOR OCEAN WIN! 📢 UK Government commits to ratifying the High Seas Treaty (aka the BBNJ) by the end of the year, as confirmed by Ocean Minister @emmahardymp.bsky.social at the UN Ocean Conference just now 🎉 #OceanProtection #UNOC3 #UNOC2025 #OceanWin @oceana.bsky.social @hugotagholm.bsky.social
27727
Reposted by David Jacoby
British Antarctic Survey 🐧 @bas.ac.uk · 10/06/2025
Breaking news: it appears Emperor penguin populations in Antarctica are declining faster than predicted. Latest satellite data shows a massive 22% drop in penguin numbers over the last 15 years in key regions. This is more than double the rate of loss that experts had expected... 🧵 1/8
211773
Reposted by David Jacoby
Sal Keith (she/her) @salkeith.bsky.social · 11/06/2025
BIG new paper on the MegaMove project with @netlab.bsky.social - portal.lancaster.ac.uk/intranet/new... Top areas to reach 30 x 30 for marine megafauna are highlighted
portal.lancaster.ac.uk
News | Portal
The Portal is the home of news, events, timetables and study information for all students at Lancaster University. It also features useful services and tools.
032
David Jacoby @netlab.bsky.social · 06/06/2025
Herculean collation of >12K megafauna tracks, >100 species, reveals 75% overlap of critical habitats with shipping, fishing, pollution or warming. Protection targets not enough to safeguard megafauna. New paper in @science.org, led by @anammsequeira.bsky.social 👇 📸silvana-palacios,daniel-torobekov
22912
Reposted by David Jacoby
Prof David Sims @thesimslab.bsky.social · 05/06/2025
NEW in @science.org Global tracking #MarineMegafauna shows <8% of areas used overlap w/ existing MPAs, while >75% of important areas overlapped by threats like #fishing #shipping & ocean warming - 30x30 goal will be insufficient for their conservation www.megamove.org @thembauk.bsky.social
science.org
Global tracking of marine megafauna space use reveals how to achieve conservation targets
The recent Kunming-Montreal Global Biodiversity Framework (GBF) sets ambitious goals but no clear pathway for how zero loss of important biodiversity areas and halting human-induced extinction of thre...
09736
Reposted by David Jacoby
Andrew King @shoalgroup.bsky.social · 03/06/2025
1/3 www.swansea.ac.uk/postgraduate... PhD studentship! Comparative Analysis and Modelling of Collective Behaviour in Natural and Artificial Systems. **this scholarship for UK residents only, as defined by UKCISA regulations** Details below! Please RT (AI-generated image)
AI generated image showing flock of sheep, shoal of fish, flock of birds and swarm robots
21931
Reposted by David Jacoby
Theresa Rueger @theresarueger.bsky.social · 22/05/2025
New study in @science.org Science Advances: Clownfish can shrink to survive heatwaves and social conflict! Led by Melissa Versteeg, with Chancey MacDonald, Morgan Bennett-Smith, Pete Buston @newcastleuni.bsky.social @sciencesncl.bsky.social @bostonu.bsky.social www.science.org/doi/10.1126/...
science.org
Individual clown anemonefish shrink to survive heat stress and social conflict
Clown anemonefish survive heatwaves by shrinking together with their breeding partner.
22014
Reposted by David Jacoby
Professor Jodie Rummer @physiologyfish.bsky.social · 31/03/2025
🦈 New paper in Ecology & Evolution 📑 via our Physioshark research (ongoing since 2013 in French Polynesia🌺)! Fisheries catch data can be used to unravel elasmobranch aggregation dynamics, social structures, & group behaviours. Case study: newborn blacktip reef sharks. 🔗 doi.org/10.1002/ece3...
1397
Reposted by David Jacoby
Andrew Chin @spinnershark7.bsky.social · 15/01/2025
OPEN CALL for Sharks International 2026 proposals for keynote speakers, themed sessions and panels, workshops, and side events 📢 🦈 Please submit proposals via: forms.gle/9EiKJVncMoa7... Deadline for proposals: 15th March 2025
Poster advertising the Sharks International conference to be held in Sri Lanka in 2026
032
Reposted by David Jacoby
Nature Reviews Biodiversity @natrevbiodiv.nature.com · 15/01/2025
Here we go! The first issue of Nature Reviews Biodiversity is now live🥳🎉🥂. Thank you to our authors, reviewers, and community for the support! We hope you enjoy the reading. www.nature.com/nrbd/volumes...
Two birds of different species looking at each other from different sides of a river
214557
Reposted by David Jacoby
Dr Craig R McClain @drcraigmc.bsky.social · 07/01/2025
Meet the cookiecutter shark: 20 inches long, with the audacity to take perfect circles out of whales and submarines. Evolution didn’t give it size, so it gave it chaos. #marinelife
1223349
Reposted by David Jacoby
Nick Graham @nickajgraham.bsky.social · 02/01/2025
Still hope for coral reefs. Using 28-years of data in Seychelles, we find reefs recovering 4-5 years faster from the 2016 bleaching event, than they did after 1998. Also, a reef that had regime-shifted to macroalgae for over 15 years, is recovering to coral. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Increased resilience and a regime shift reversal through repeat mass coral bleaching
Assessing coral reefs across the inner Seychelles islands, using a 28-year dataset, we document faster coral recovery from the 2016 than the 1998 marine heatwave events. Further, a reef that had regi....
4290100
Reposted by David Jacoby
SharkScience @sharkscience.bsky.social · 07/12/2024
Ecological erosion and expanding extinction risk of sharks and rays 🦑🌎🐟🧪🦈 www.science.org/doi/10.1126/...
science.org
Ecological erosion and expanding extinction risk of sharks and rays
The true state of ocean biodiversity is difficult to assess, and there are few global indicators to track the primary threat of overfishing. We calculated a 50-year Red List Index of extinction risk a...
27228
Reposted by David Jacoby
Johann Mourier @sharkmourier.bsky.social · 05/12/2024
Hey #FishTrackers! This is the account of the 7th International Conference on Fish Telemetry that will be hosted by the @glatos-fish.bsky.social in Traverse City, Michigan in USA in June 8-13, 2025. Follow for updates!
0136
Reposted by David Jacoby
Colin Simpfendorfer @sharkcolin.bsky.social · 04/12/2024
New #sharkscience Great to see new information about smalltooth sawfish in Cuba out today. Evidence that a local population may still exist, but numbers are likely low and action is required (and suggested in the paper). www.int-res.com/abstracts/es...
int-res.com
Presence of the smalltooth sawfish in the Cuban Archipelago
093
Reposted by David Jacoby
Mike Williamson @mjw-marine.bsky.social · 02/12/2024
First post on #Bluesky, thought I'd highlight some of our research this year with @netlab.bsky.social. Acoustic telemetry can be used to answer a whole variety of questions including; Residency in reef #sharks - doi.org/10.1038/s420...
doi.org
Environmental stress reduces shark residency to coral reefs - Communications Biology
Environmental stress on coral reefs is increasing. Authors show a stress-related reduction in residency of grey reef sharks on the remote reefs of the Chagos Archipelago, promoting more diffuse space ...
1163
David Jacoby @netlab.bsky.social · 30/11/2024
Beautifully described and illustrated research journey by the fantastic @ruchakarkarey.bsky.social discovering the square tailed grouper aggregation in the Lakshadweep. Let’s not overlook the powerful link of these natural occurrences with human communities. #RCUK2024
0101
Reposted by David Jacoby
Johann Mourier @sharkmourier.bsky.social · 28/11/2024
🦈 ‼️New paper‼️ 🦈 We used ERGMs to analyze movement networks in bull sharks in Reunion Island. Intra- & interspecific factors often had stronger effects on movements than environmental variables. #OpenAccess Paper: 👇 onlinelibrary.wiley.com/doi/10.1002/... #MARBEC @umontpellier.bsky.social
03914
Reposted by David Jacoby
Lachlan Fetterplace @fiskeforbrains.bsky.social · 22/11/2024
Really nice looking postion open here at SLU Sweden: Professor (fully tenured) in conservation ecology with focus on biodiversity linked to forest management & green infrastructure. It is also at our Alnarp campus which is...well...rather nice & even has a castle! 🧪🌎 www.slu.se/en/about-slu...
A green lawn stretches towards an old castl, three wings of the castle can be seen with multiple arched entries and at leasted 4 levels of whindows. Two large sections of the castle walls are covered with green vine with leaves or red vine with red or orange leaves. This is the opposite side of the castle in the previous picture. Here three distinct 'towers' cant be see with two sections of building between them. This side of the case appears to only have one entrance and the sections between the towers are covered in thick green foilage   with the exception of the 12 windows in each section spread over three floors.
05037
Reposted by David Jacoby
David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 09/11/2024
Applying acoustic telemetry, vessel tracking and fisher knowledge to investigate and manage fisher-shark conflict at Lord Howe Island, Australia | Marine Biology buff.ly/3NZEGJq
buff.ly
Applying acoustic telemetry, vessel tracking and fisher knowledge to investigate and manage fisher-shark conflict at Lord Howe Island, Australia - Marine Biology
Fisher-shark conflict is occurring at Lord Howe Island, Australia due to high levels of Galapagos shark (Carcharhinus galapagensis) depredation (where sharks consume hooked fish) and bycatch.…
0194
Reposted by David Jacoby
Eva Meyers @evameyers.bsky.social · 07/11/2024
📢 New Paper Alert 📢 🔬 Distinct management units for the Critically Endangered angelshark (Squatina squatina) revealed in the Canary Islands 🌊🦈
074
Reposted by David Jacoby
Damien Farine @damienfarine.bsky.social · 23/10/2024
Want to track animals in urban landscapes? Read about our new low-cost Bluetooth low-energy beacons that work over the network of mobile phones. Get in touch if you want to try some out or collaborate on projects! besjournals.onlinelibrary.wiley.com/doi/10.1111/...
besjournals.onlinelibrary.wiley.com
Low‐cost animal tracking using Bluetooth low energy beacons on a crowd‐sourced network
Animal tracking has opened the door to address many fundamental questions in ecology and conservation. Whilst historically animals have been tracked as a means to understand their large-scale move...
0105