@predateursmarins
Équipe Prédateurs Marins au CEBC @cebc-chizelab.bsky.social @cnrsaquitaine.bsky.social @cnrsecologie.bsky.social @univ-larochelle.fr #Biodiversity #Ecology #Evolution #Genetics #Demography #Biologging #SeaBirds #SeaMammals
#Communiqué 🗞️ Une étude révèle un constat préoccupant : sur les côtes du Golfe de Gascogne, entre 1997 et 2019, la longévité des femelles dauphins 🐬 a diminué de sept ans, sous l’effet d’une mortalité accrue liée aux activités humaines en mer.
👉 cnrs.fr/fr/presse/go...
Conceptual representation of the relationships between the different variables used in the study: penguins, krill, fish, and ice conditions in wintering areas, foraging areas and at the colony.
New paper by Benjamin Dupuis
Energetics link long-term environmental variations to breeding success in a wild penguin population
besjournals.onlinelibrary.wiley.com/doi/10.1111/...
#penguins #ecology @cebc-chizelab.bsky.social @cnrsecologie.bsky.social @cnrsaquitaine.bsky.social
Post-doc position at CEBC to work on quantitative genetics of albatross populations using pedigree and genomic data.
Info and application at
emploi.cnrs.fr/Offres/CDD/U...
Contact Timothée Bonnet for more details
#postdoc #seabirds #Genomics
Open Letter by scientists to the Council:
"Climate Neutrality Is Europe’s Greatest Economic Opportunity”.
Ahead of the European Council meeting on 23.10.2025,
2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets.
zenodo.org/records/1739...
🌍🐧 Fully-funded PhD Opportunity joined between La Rochelle University (France) & @sosbangor.bsky.social (UK): Understanding Antarctic Ecosystem Resilience through Penguin Energetics ❄️🎓
euraxess.ec.europa.eu/jobs/380114
💥BREAKING: Birds in a tropical pluvial rainforest of the Chocó have been quietly changing in morphology for 109 years. Some have shrunk, others grown. Tails grew longer, bills grew deeper. Even in forests with continuous cover, climate change may be rewriting evolution in real time.
Où sont passés les phoques à capuchon, sur la banquise qui fond ?
par Tiphaine Jeanniard-du-Dot
theconversation.com/sur-la-banqu...
#ecology #ClimateChange
@cebc-chizelab.bsky.social @cnrsecologie.bsky.social @univ-larochelle.fr
My first PhD chapter got published in @nordicoikos.bsky.social! We show that sooty albatross populations are impacted very differently by global changes.
👉 Take a look here: doi.org/10.1002/oik....
@predateursmarins.bsky.social @cebc-chizelab.bsky.social
#seabirds #Demography #ecology
With my colleague Christophe Guinet we offer a 6-months position for a master student about sexual selection in southern elephant seals. Here for more details: www.linkedin.com/posts/corali...
@predateursmarins.bsky.social
@ecophycebc.bsky.social
@cebc-chizelab.bsky.social
@univ-larochelle.fr
Do I know anyone on here who might find it useful to predict hatching dates from birds eggs? Please reach out if you're open to help me develop ovotime.com to include more species, and to expand with more detailed #oology features! #phenology #seabirds #ornithology 🌍🧪
Drawing and photo of a shearwater pooping, as captured by a camera, and recorded timing of pooping events for different individuals.
DraLeo Uesaka's work on seabird pooping:
Periodic excretion patterns of seabirds in flight
#seabirds #ecology
@cebc-chizelab.bsky.social @cnrsecologie.bsky.social @cnrsaquitaine.bsky.social
Sensitivity of the population growth for different environmental variables across albatross populations.
Albatross research by Camille Schatz:
Inter-population variation in demographic responses to environmental changes: insights from four seabird populations
nsojournals.onlinelibrary.wiley.com/doi/10.1002/...
#seabirds #Demography #ecology
@cebc-chizelab.bsky.social @cnrsecologie.bsky.social
Comparative drawing of penguins diving under high or low krill availability. Under high krill availability we can see that the penguins dive less deep, for shorter bouts, and with less distance and duration between bouts. The prey capture within bouts remains constant under high and low krill availability though.
New paper:
contrasting Adélie penguin foraging behaviour during years of high and low krill availability
authors.elsevier.com/a/1lTzlmjMA3...
#penguins #seabirds #ecology
@cebc-chizelab.bsky.social @cnrsecologie.bsky.social @univ-larochelle.fr @cnrsaquitaine.bsky.social
@cnrsecologie.bsky.social regrette profondément l'adoption de cette loi à la vision court-termiste & ses conséquences graves sur l’environnement, qui méprise santé & bien-être de la population & le rôle des espèces sauvages dans la prod. agricole. La communauté scientifique n'a pas été entendue.
Comparison of adaptation rates based on the six definitions (Equations (3-5)). Each panel presents a different definition. The rate of adaptation can be indicated per unit of time or generation, and either without standardization for the strength of selection, with standardization at the level of the vital rate, or with standardization at the level of total fitness.
Out in Methods in Ecology and Evolution
Van de Walle et al. Toward a unified approach to modelling adaptation among demographers and evolutionary ecologists.
dx.doi.org/10.1111/2041...
#ecology #evolution #Demography
@cebc-chizelab.bsky.social @cnrsecologie.bsky.social
Examples of challenges encountered in image-based bio-logging (both camera and microsonar tags): Imbalanced light conditions, low contrast, blur, overexposure, small and clustered targets, scalability and target size
Out in Methods in Ecology and Evolution
Chimienti et al. Reviewing seas of data: Integrating image-based bio-logging and artificial intelligence to enhance marine conservation
dx.doi.org/10.1111/2041...
#ecology #seabirds #ai #biologging @cebc-chizelab.bsky.social @cnrsecologie.bsky.social
New paper:
Habitat availability is insufficient to explain regional variations in white stork breeding habitat preference.
doi.org/10.1002/oik....
@cebc-chizelab.bsky.social @univ-larochelle.fr @cnrsecologie.bsky.social @cnrsaquitaine.bsky.social
#ecology #birds #stork #statistics
New paper
Experimental manipulation of corticosterone advances departure dates
esajournals.onlinelibrary.wiley.com/doi/10.1002/...
@cebc-chizelab.bsky.social @cnrsecologie.bsky.social @cnrsaquitaine.bsky.social @univ-larochelle.fr
💻 Recrutement en thèse au CEBC / La Rochelle Université !
🎓 Dynamique spatio-temporelle des oiseaux sentinelles du littoral
🦅 Espèces étudiées : cigogne, sternes, goélands,...
📊 Analyses GPS/accélérométrie, R, SSF/HSF, GLMM
📅 Candidature avant le 25/06/2025
🔗 www.univ-larochelle.fr/luniversite/...
"As H5N1 continues to march across the Southern Ocean, there are concerns that #Antarctic seals are now also spreading the virus, adding a new layer of complexity and putting the deep south’s mammalian population at greater risk."
www.abc.net.au/news/2025-05...
SSE, SSB, and ASN logos. Text: Tri-societies Week of Action for NSF. Science under siege: Over 1000 NSF grants have been terminated by political appointees- threatening the foundation of American innovation and education, and more cuts loom; entire research programs are being erased without explanation. What’s at stake? STEM education for K-12 students, jobs and infrastructure in rural communities, support for veterans in research and education, cybersecurity and national defense innovation, global leadership in science and technology. Join the week of action: Contact Congress: Switchboard: (202) 224-3121, tell them to protect NSF. Share your story: Post on social media #WithoutNSF #SupportNSF #SaveNSF, engage local media; use our media tool to reach out to local reporters and newspapers; engage others: communicate the importance of NSF to colleagues, friends, and family.
Join SSE, @asn-amnat.bsky.social & @systbiol.bsky.social in a Week of Action for NSF!
Call and write congress and engage with colleagues, friends and family about the importance of NSF funding!
Our Media Tool can help you get started:
shorturl.at/i7WfU
#WithoutNSF #SaveNSF #SupportNSF
Le CEBC recherche un ou une apprenti(e) en CAP cuisine pour la rentrée de Septembre.
Merci de contacter notre chef de restaurant Arnaud Viollet au 05 49 09 00 07 ou arnaud.viollet@cebc.cnrs.fr
Merci de partager!👩🍳👨🍳🍽
#capcuisine
@cnrsaquitaine.bsky.social
@univ-larochelle.fr
"Untangling the complexities of larval Antarctic krill overwintering success under climate change" led by Zephyr Sylvester is out : doi.org/10.1093/ices... @scar-antarctic.bsky.social
@cebc-chizelab.bsky.social @univ-larochelle.fr @cnrsecologie.bsky.social
New paper in Journal of Experimental Marine Biology and Ecology.
Major and trace nutrient concentrations in sub-Antarctic forage fish around the Kerguelen Islands: All are not equal for nutrient recycling by top predators
www.sciencedirect.com/science/arti...
#ecology #Kerguelen
New paper in Animal Behaviour.
Energy expenditure of Adélie penguins during the breeding season: females pay the cost in years of low food availability doi.org/10.1016/j.an...
#seabirds #Antarctic #penguins #ecology
@cebc-chizelab.bsky.social @univ-larochelle.fr @cnrsecologie.bsky.social
Common terns are assortatively mated with respect to their levels of #mercury #pollution, and transfer mercury to their eggs. Another amazing body of work from Justine's PhD thesis has turned into a paper. To be found in Environmental Research and open access: doi.org/10.1016/j.en...
#Communiqué 🗞️ Le CNRS exprime sa solidarité avec les scientifiques exerçant aux États-Unis, où la liberté académique est aujourd'hui mise à l’épreuve.
👉 www.cnrs.fr/fr/presse/le...
New paper by Ewen Le Scornec et al.
Intrinsic and extrinsic drivers of juvenile survival in emperor penguins
link.springer.com/article/10.1...
#penguins #seabirds #ecology #Demography #Antarctic
@cebc-chizelab.bsky.social @univ-larochelle.fr
Nature or Nurture? Adélie penguin siblings often have very contrasted growth trajectories in Antarctica but they share similar telomere length.❄️🐧
Strong heritability of this aging processes ✔️
In CBPA: doi.org/10.1016/j.cbpa.2025.111818
#IPEV
@cebc-chizelab.bsky.social
@predateursmarins.bsky.social