TY - JOUR TI - Extending community trajectory analysis: New metrics and representation AU - Sturbois, A. AU - De Caceres, M. AU - Sanchez-Pinillos, M. AU - Schaal, G. AU - Gauthier, O. AU - Le Mao, P. AU - Ponsero, A. AU - Desroy, N. T2 - Ecological Modelling AB - Ecological research focuses on the spatio-temporal patterns of ecosystems and communities. The recently proposed framework of Community Trajectory Analysis considers community dynamics as trajectories in a chosen space of community resemblance and utilizes geometrical properties of trajectories to compare and analyse temporal changes. Here, we extend the initial framework, which focused on consecutive trajectory segments, by considering additional metrics with respect to initial or baseline states. Addressing questions about community dynamics and more generally temporal and spatial ecological variability requires synthetic and efficient modes of representation. Hence, we propose a set of innovative maps, charts and trajectory roses to represent trajectory properties and complement the panel of traditional modes of representation used in community ecology. We use four case studies to highlight the complementarity and the ability of the new metrics and innovative figures to illustrate ecological trajectories and to facilitate their interpretation. Finally, we encourage ecologists skilled in multivariate analysis to integrate CTA into their toolbox in order to quantitatively evaluate spatio-temporal changes. DA - 2021/01/15/ PY - 2021 DO - 10.1016/j.ecolmodel.2020.109400 DP - Web of Science VL - 440 SP - 109400 J2 - Ecol. Model. LA - English SN - 0304-3800 ST - Extending community trajectory analysis KW - ACL KW - Community dynamics KW - DISCOVERY KW - Ecological variability KW - Impact assessment KW - Initial state KW - Representation tools KW - Trajectory analysis KW - UBO ER -