In the frame of climate change and the important impact it has on species from the subantarctic area,
particularly adapted to unchanging environments, methods to evaluate the impact of changes on
these populations are developed. Here we constructed a DEB-IBM model to follow the population
dynamics of a sea urchin endemic to the Kerguelen Plateau and particularly exposed to threats of
global warming. This model allows to represent the dynamics of the population through its
individuals interacting with their environment directly, following their physiological development
along time. This kind of model, newly applied here to a subantarctic benthic species, could be an
advantageous tool for conservation management in a region difficult to access and lacking in
scientific knowledge.
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