Global climate drives southern right whale (Eubalaena australis) population dynamics |
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Authors: | Leaper Russell Cooke Justin Trathan Phil Reid Keith Rowntree Victoria Payne Roger |
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Institution: | International Fund for Animal Welfare, 87-90 Albert Embankment, London 1 7UD, UK. russell@ivyt.demon.co.uk |
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Abstract: | Sea surface temperature (SST) time-series from the southwest Atlantic and the El Ni?o 4 region in the western Pacific were compared to an index of annual calving success of the southern right whale (Eubalaena australis) breeding in Argentina. There was a strong relationship between right whale calving output and SST anomalies at South Georgia in the autumn of the previous year and also with mean El Ni?o 4 SST anomalies delayed by 6 years. These results extend similar observations from other krill predators and show clear linkages between global climate signals and the biological processes affecting whale population dynamics. |
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