Large-scale climatic anomalies affect marine predator foraging behaviour and demography

摘要: Determining the links between behavioural and population responses of wild species to environmental variations is critical for understanding impact climate variability on ecosystems. Using long-term data sets, we show how large-scale climatic anomalies in Southern Hemisphere affect foraging behaviour dynamics a key marine predator, king penguin. When subtropical dipole events occur simultaneously both Indian Atlantic Oceans, they generate tropical that shift zone southward. Consequently distances penguins foraged from colony their feeding depths increased size decreased. This represents an example robust fast affecting predator through changes its at-sea demography, despite lack information prey availability. Our results highlight possible mechanism which may processes.