Browsing Iverson, Sara by Title

Now showing items 16-19 of 19

  • Repeatability in lactation performance and the consequences for maternal reproductive success in gray seals 

    Lang, S. L. C., S. J. Iverson, and W. D. Bowen. 2009. "Repeatability in lactation performance and the consequences for maternal reproductive success in gray seals." Ecology 90(9): 2513-2523. Copyright by the Ecological Society of America.
    In mammals, the most significant maternal effect on offspring growth during lactation is the ability of females to efficiently transfer milk energy to their neonates. However, despite the importance of the transfer of ...

  • Seasonal changes in buoyancy and diving behaviour of adult grey seals 

    Beck, Carrie A., W. Don Bowen, and Sara J. Iverson. 2000. "Seasonal changes in buoyancy and diving behaviour of adult grey seals." Journal of Experimental Biology 203(15): 2323-2330.
    Phocid seals go through dramatic seasonal changes in body mass and composition as a result of the spatial and temporal separation of foraging, reproduction and moulting. These changes in body fat content and body mass ...

  • Variation in milk production and lactation performance in grey seals and consequences for pup growth and weaning characteristics 

    Mellish, JAE, SJ Iverson, and WD Bowen. 1999. "Variation in milk production and lactation performance in grey seals and consequences for pup growth and weaning characteristics." Physiological and Biochemical Zoology 72(6): 677-690. Copyright © 1999 The University of Chicago Press.
    Phocid seals are one of the few groups of mammals capable of sustaining the energetic demands of lactation entirely through body nutrient stores while fasting. Lactation performance of the female in turn influences the ...

  • Weaning mass affects changes in body composition and food intake in harbour seal pups during the first month of independence 

    Muelbert, MMC, WD Bowen, and SJ Iverson. 2003. "Weaning mass affects changes in body composition and food intake in harbour seal pups during the first month of independence." Physiological and Biochemical Zoology 76(3): 418-427. Copyright © 2003 The University of Chicago Press.
    In phocid seals, the transition to nutritional independence is abrupt, with females abandoning their offspring after weaning and returning to sea. We hypothesized that body size at weaning may play an important role in ...