Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck ...

• Main Authors: Hennin, Holly, Legagneux, Pierre, Gilchrist, Hugh, Bêty, Joël, McMurtry, John, Love, Oliver P.
• Format: Dataset
• Language: English
• Published: Dryad 2019
• Subjects: Somateria mollissima; plasma mammalian leptin analogue; common eider; energetic demand; Leptin; Reproductive success; Arctic; Canada; Nunavut; Southampton Island; Common Eider
• Online Access: https://dx.doi.org/10.5061/dryad.283n1c6; https://datadryad.org/stash/dataset/doi:10.5061/dryad.283n1c6

To invest in energetically demanding life history stages, individuals require a substantial amount of resources. Physiological traits, particularly those related to energetics, can be useful for examining variation in life history decisions and trade-offs because they result from individual responses to environmental variation. Leptin is a protein hormone found in mammals that is proportional to the amount of endogenous fat stores within an individual. Recently, researchers have confirmed that a mammalian leptin analogue (MLA), based on the mammalian sequence of leptin, is present with associated receptors and proteins in avian species, with an inhibitory effect on foraging and body mass gain at high circulating levels. While MLA has been both quantified and manipulated in avian species, little is currently known regarding whether plasma MLA in wild-living species and individuals is associated with key reproductive decisions. We quantified plasma MLA in wild, Arctic-nesting female common eiders (Somateria ... : Plasma mammalian leptin analogue in Arctic-nesting common eider femalesThese data were collected in the field from common eiders at Southampton Island, Nunavut, Canada from 2006-2007. These data are in an Microsoft Excel file. Plasma MLA is the short form of plasma mammalian leptin analogue.Hennin et al 2018 Plasma MLA Data.xlsx ...