Fig. 2: Spatial competition on artificial substrata at 15 m depth in Antarctica.
From: 1 °C warming increases spatial competition frequency and complexity in Antarctic marine macrofauna
Colonists of panels at ambient (A) and +1 °C (B) treatments (9.8 ×9.8 cm), together with image analysis frames used to highlight less abundant species (right images). Rarer species are shown in different colours. Probability of individuals encountering competition (C), competition density (D) and complexity (E). Letters above plots C–E show significant differences between treatments. Degrees of freedom (DF) = 4, n = 20 for C–E; (C) Welch’s one-way F = 28.326 p = 0.0001, Games–Howell post hoc tests p < 0.01; (D) Welch’s one-way F = 6.5527 p = 0.017, Games–Howell post hoc tests p < 0.1; (E) ANOVA F = 5.467 p = 0.006, Tukey HSD p < 0.1. Key to treatment symbols (F), + 1: warmed to +1 °C; + 2: warmed to +2 °C; controls: no warming; previous: deployed previously without warming; summer: warmer to +1 °C in summer (Sep–Mar) only.
