Fig. 5
From: Ponds as experimental arenas for studying animal movement: current research and future prospects
Examples of experimental data obtained using the iPonds system allowing for analysis of for example social interactions (A) and movement in a landscape of fear (B)
A: Individual distances to nearest three conspecific neighbours were estimated for n = 17 tagged roach (Rutilus rutilus) individuals. Data shown are median distances in ten-minute intervals for a 14-day period (black dots) and an individual generalized additive model (lines). Diurnal dynamics of social interactions (distance to their nearest neighbour) are clearly visible and characterized by smaller inter-individual distances during day as compared to night-time
B: Roach distances to four net cages during periods of seven days when the cage either contained (red) or not contained a pike (Esox lucius). For each day, individual empirical cumulative distribution functions (ecdfs) where estimated for each individual roach. Period specific 50% interquartile of these day-individual ecdfs were obtained and plotted. Lines represent median ecdfs