Читать книгу Statistical Approaches for Hidden Variables in Ecology - Nathalie Peyrard - Страница 19

The study of movement in ecology has taken off in recent years, driven by questions relating to the determinisms of individual movement. Interest in the ecology of movement has been largely fueled by the emergence and development of GPS technologies over the last 20 years, helped along by the creation of numerous databases made up of individual trajectories. These observations, on fine spatial and temporal levels, can be used to study the behavior of individuals in relation to their living environment. A variety of trajectory models have been developed and applied with the aim of reconstructing these behaviors and understanding the underlying determinisms. In this chapter, we shall present two latent variable models, widely used in movement ecology for trajectory analysis. Each model corresponds to a specific objective: the reconstruction of real trajectories with the removal of any geolocation errors, and the identification of different behaviors in the course of movement.