Fitness heterogeneity in adult Snow and Ross’s geese: Survival is higher in females with brood patches

• Published in: The Auk
• Main Authors: Calvert, Anna M, Alisauskas, Ray T, Kellett, Dana K
• Other Authors: Environment Canada
• Format: Article in Journal/Newspaper
• Language: English
• Published: Oxford University Press (OUP) 2019
• Subjects: Animal Science and Zoology; Ecology, Evolution, Behavior and Systematics; Arctic; Canada; Karrak Lake; Nunavut
• Online Access: http://dx.doi.org/10.1093/auk/ukz027; http://academic.oup.com/auk/article-pdf/136/3/ukz027/29222011/ukz027.pdf

Abstract Life-history theory broadly predicts a fitness tradeoff between costs of raising offspring and parental survival. Waterfowl with precocial young face particularly high costs of egg production, incubation, and brood-rearing, but not all evidence supports a corresponding decline in survival....