... ( Sturnus vulgaris ) and cross-fostered chicks between enlarged and reduced broods approaching fledging. We measured body size (mass, tarsus, wing length) and physiological state (aerobic capacity, oxidative status) at asymptotic mass on day 15, then cross-fostered chicks between ‘high’ and ‘low’ quality...

...Pierick Mouginot; Gabriele Uhl; Nia Toshkova; Michaël Beaulieu ABSTRACT In animals that regularly experience tissue loss, physiological responses may have evolved to overcome the related costs. Changes in oxidative status may reflect such self-maintenance mechanisms. Here, we investigated how...

.../ Summary: Dehydration during pregnancy negatively affects maternal physiology but has little effect on reproductive output. These effects are additive to temperature regimes and therefore similar in warmer and colder environments. Pregnancy Hydration Temperature constraints Oxidative status...

... related to different life-history strategies remain unclear. Here, we examined in the polymorphic Gouldian finch ( Erythrura gouldiae ) whether markers of somatic maintenance (body mass, oxidative status and telomere length) differed between red- and black-headed birds under energetically demanding...

... that protect embryos from oxidative damage. The antioxidant system components are thought to be integrated, but few studies have analyzed the covariation between antioxidant concentrations, embryo ‘oxidative status’ and morphology. In addition, no study has tested the effects of experimental change in yolk...

...: Increased yolk testosterone concentration in yellow-legged gulls promotes body mass growth of embryos but reduces brain size. Moreover, sex differences in brain size exist among control embryos. Brain mass Embryo Growth Oxidative status Sexual dimorphism Larus michahellis Testosterone...