Global climate drives southern right whale (Eubalaena australis) population dynamics
Sea surface temperature (SST) time-series from the southwest Atlantic and the El Niño 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 calvi...
Published in: | Biology Letters |
---|---|
Main Authors: | , , , , , |
Format: | Text |
Language: | English |
Published: |
The Royal Society
2006
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1618902 http://www.ncbi.nlm.nih.gov/pubmed/17148385 https://doi.org/10.1098/rsbl.2005.0431 |
Summary: | Sea surface temperature (SST) time-series from the southwest Atlantic and the El Niño 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 Niño 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. |
---|