Spatial and Temporal Variation in the Timing of Births of Steller Sea Lions

• Main Authors: Pitcher, Kenneth W., Burkanov, Vladimir N., Calkins, Donald G., Le Boeuf, Burney J., Mamaev, Evgeny G., Merrick, Richard L., Pendleton, Grey W.
• Format: Text
• Language: English
• Published: Oxford University Press 2001
• Subjects: Feature Articles; Forrester Island; Alaska
• Online Access: http://jmammal.oxfordjournals.org/cgi/content/short/82/4/1047; https://doi.org/10.1644/1545-1542(2001)082<1047:SATVIT>2.0.CO;2

Throughout the range of the Steller sea lion ( Eumetopias jubatus ), nearly all births of full-term pups observed from 1968 to 1998 occurred between 15 May and 15 July. We found significant differences in timing of births between rookeries with the earliest mean date of birth (4 June) at Forrester I...