Figure 2: Relationships between penguins foraging behaviour and conditions at the Polar Front in summer, South Indian Ocean (Crozet sector).
From: Large-scale climatic anomalies affect marine predator foraging behaviour and demography

Error bars are s.e.m. and the solid black line are regression slopes based on the data. (a) Mean maximal foraging range of penguins as a function of inter-annual variations in the PF location (1992–2007, n=14 years). (b) Mean maximal foraging depth as a function of inter-annual variations in the thermocline depth in the polar frontal zone (1995–2004, n=7 years).