Annual variation in common eider egg size: effects of temperature, clutch size, laying date, and laying sequence

• Published in: Canadian Journal of Zoology
• Main Author: Robertson, Gregory J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1995
• Subjects: Animal Science and Zoology; Ecology, Evolution, Behavior and Systematics; La Pérouse Bay; Common Eider; Somateria mollissima
• Online Access: http://dx.doi.org/10.1139/z95-188; http://www.nrcresearchpress.com/doi/pdf/10.1139/z95-188

Annual variation in volumes of eggs laid by common eiders (Somateria mollissima sedentaria) nesting at La Pérouse Bay, Manitoba (58°43′N, 93°27′W), was studied over 3 years (1991–1993). Temperatures during the egg-laying period were higher in 1991 than in 1992 and 1993. However, the eiders began nes...