Brood reduction in the Blue‐eyed Shag Phalacrocorax atriceps

• Published in: Ibis
• Main Author: SHAW, P.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1985
• Subjects: Signy Island; South Orkney Islands; Blue Eyed Shag; Phalacrocorax atriceps
• Online Access: http://dx.doi.org/10.1111/j.1474-919x.1985.tb04843.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1985.tb04843.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1985.tb04843.x

Brood reduction is common in a population of Blue‐eyed Shags on Signy Island, South Orkney Islands. This paper describes possible adaptations which may reduce the brood. In clutches of three, the last egg was smaller, and hatched 2.4 days later than its siblings. Whilst 78–84% of first and second (‘...