Temporal evolution of the physical parameters of anemone active regions and associated coronal hole features during the years 2011–2014. From top to bottom: (a) minimum distance (D_(CH-AR)) between the center of gravity of anemone active regions and their host coronal holes, (b) total area magnitudes (A), (c) magnetic field strength (|B|), and estimated ratios for area (r_A) and magnetic field (r_B) parameters (d). Magnitudes of estimated parameters associated with flaring events are overplotted with a cross (×).