When do older birds better resist stress? A study of the corticosterone stress response in snow petrels

• Published in: Biology Letters
• Main Authors: Angelier, Frédéric, Chastel, Olivier, Lendvai, Adam Z., Parenteau, Charline, Weimerskirch, Henri, Wingfield, John C.
• Other Authors: Institut Polaire Français Paul Emile Victor, FP7 People: Marie-Curie Actions
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Royal Society 2020
• Subjects: Nivea; Snow Petrels
• Online Access: http://dx.doi.org/10.1098/rsbl.2019.0733; https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2019.0733; https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2019.0733

Life-history theory predicts that, to optimize their fitness, individuals should increase their reproductive effort as their residual reproductive value decreases. Accordingly, several studies have shown that individuals downregulate their glucocorticoid stress response (a proxy of reproductive inve...