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11 pages, 4 figures, 2 tables, supplementary material https://www.frontiersin.org/articles/10.3389/fevo.2023.1107992/full#supplementary-material.-- Data availability statement: The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation, The Arctic experiences a rapid retreat of sea-ice, particularly in spring and summer, which may dramatically affect pagophilic species. In recent years, the decline of many Arctic seabird populations has raised concerns about the potential role of sea-ice habitats on their demography. Spring sea-ice drives the dynamics of phytoplankton blooms, the basis of Arctic food webs, and changes in spring sea-ice have the potential to affect the demographic parameters of seabirds through bottom-up processes. To better understand the effects of spring sea-ice on Arctic seabirds, we investigated the influence of spring sea-ice concentration on the survival and breeding success of three seabird species with contrasted foraging strategies in two Svalbard fjords in the high Arctic. We examined these relationships using long-term demographic data (2005–2021) from black-legged kittiwakes (Rissa tridactyla), Brünnich guillemots (Uria lomvia), and little auks (Alle alle). Spring sea-ice concentration was positively related to both the survival and breeding success of little auks, suggesting a higher sensitivity of this species to spring sea-ice. By contrast, the two other species were not particularly sensitive to changes in spring sea-ice, even though a potentially spurious negative effect on the breeding success of black-legged kittiwakes was observed. Overall, the study suggests that spring sea-ice may be involved in the demography of Arctic seabirds, but probably does not play a major role, This study was funded by the project FACE-IT (The Future of Arctic Coastal Ecosystems—Identifying Transitions in Fjord Systems and Adjacent Coastal Areas) and the programs SEAPOP (www.seapop.no) and MOSJ (www.mosj.no). FACE-IT has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 869154. The long-term study of kittiwakes in the Kongsfjord was supported by Institut Polaire Français (IPEV project no. 330) and the BNP Paribas Foundation (project SENSEI), With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S)

International audience; Objectives: Early rehabilitation management of septic arthritis in the native knee is not standardized. In this context, it is necessary to develop and validate an early rehabilitation strategy.Materiel and methods: Based on the formalized HAS consensus method, a 4-phase rehabilitation strategy has been developed: recovery of joint amplitudes, muscle recovery without resistance, recovery with technical aid (crutches, canes), continuation of the rehabilitation (pursuit of muscle, articular, proprioceptive and endurance recovery).Results: It was submitted to the opinion of multidisciplinary experts (PMR, general practitioner, rheumatologist, infectiologist, orthopedic surgeon, physiotherapist). Nearly 80% of the items were directly validated, with only five items scoring less than 5/10. Modifications were made in order to obtain a final version of the protocol.Conclusion: Use of a rigorous methodology enabled a consensual strategy for early rehabilitation management to be developed. Prospective validation of this strategy is needed to confirm its feasibility and effectiveness.

International audience

International audience

International audience

International audience

International audience