Reproductive endocrinology of macaroni (Eudyptes chrysolophus) and gentoo (Pygoscelis papua) penguins: I. Seasonal changes in plasma level of gonadal steroids and LH in breeding adults

• Published in: General and Comparative Endocrinology
• Main Author: Williams, T.D.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Elsevier 1992
• Subjects: Bird Island; Eudyptes chrysolophus; Pygoscelis papua
• Online Access: http://nora.nerc.ac.uk/id/eprint/519107/; https://doi.org/10.1016/0016-6480(92)90006-6

Changes in plasma luteinizing hormone (LH), testosterone, oestradiol, and progesterone were measured throughout the breeding and molt cycle in free-living male and female macaroni (Eudyptes chrysolophus) and gentoo (Pygoscelis papua) penguins, at Bird Island, South Georgia (54°S, 38°W). These two sp...