Combined standardised indices of predator performance at Bird Island, South Georgia, 1973¬–2002

Long-term data on the reproductive performance of krill predators at Bird Island, South Georgia where used to produce Combined Standardised Indices (CSI) that reflect processes operating over different time-scales. The output from all three CSIs indicated that in 2002 there were no indications of predators being unable to find sufficient food to provision themselves or their offspring.