Advance your analytical toolkit for marine mammal ecology with our course *Stable Isotope Mixing Models Using SIBER, SIAR & MixSIAR (SIMM12)* — available live online *and* as a recorded option. Stable isotope mixing models are essential for quantifying dietary contributions, movement ecology, trophic interactions, and habitat use. This course teaches practical implementation in R using three widely used packages, with workflows applicable to marine mammal datasets such as fatty acid or isotopic data from tissues, breath, or baleen. *What the course offers* - Hands-on implementation of mixing models in R - Understanding model assumptions and uncertainty - Comparing approaches across SIBER, SIAR, and MixSIAR - Ecological interpretation of source contributions - Workflows suited to marine mammal dietary and trophic studies *Why choose live or recorded?* *Live online* - Interactive sessions with the instructor - Q&A tailored to your data and research questions - Structured schedule helps momentum and focus - Peer insights during discussions *Recorded option* - Learn at your own pace with full access to all lectures - Ideal for balancing research, fieldwork, or time zones - Pause, repeat, and revisit key concepts *Course details* Dates: 27-30 April 2026 Duration: 4 days (approximately 7 hours per day) Format: Live online (with recorded access afterward) Fee: £480 This course is ideal for marine mammal researchers working on diet, trophic ecology, movement ecology, or habitat use who want to understand and apply isotope mixing models with confidence. Full details and registration: Live https://prstats.org/course/stable-isotope-mixing-models-using-siber-siar-mix... On demand https://prstats.org/course/stable-isotope-mixing-models-using-siber-siar-mix... Email oliver@prstats.org with any questions -- Oliver Hooker PhD. PR stats