Research programmes on oxidative stress and hormesis are wide ranging. Biomedical and
toxicological sciences have traditionally centralised such research, but in the last years we …

Innovative behaviors such as exploiting novel food sources can grant significant fitness
benefits for animals, yet little is known about the mechanisms driving such phenomena, and …

Mitochondria have a fundamental role in the transduction of energy from food into ATP. The
coupling between food oxidation and ATP production is never perfect, but may nevertheless …

The exceptionally long (c. 11 months) growth period of king penguin chicks (A ptenodytes
patagonicus) is interrupted by the Austral winter. As a consequence, penguin chicks born …

One cellular mechanism thought to be particularly important as a constraint on lifespan and
life-history strategies is oxidative stress. Susceptibility to oxidative stress is influenced by a …

Interest in the imbalance between the production of reactive oxygen species and the state of
the antioxidant machinery—that is, oxidative stress—has recently grown among comparative …

We sought to clarify functional relationships between baseline and acute stress-induced
changes in plasma levels of the stress hormone corticosterone (CORT) and the reproductive …

Rapid worldwide urbanization is creating novel environments to which animals must adapt,
a topic of growing interest for biologists. Studies of how organisms are affected by cities …

While eating has substantial benefits in terms of both nutrient and energy acquisition, there
are physiological costs associated with digesting and metabolizing a meal. Frequently …

The main tenet of immunoecology is that individual variation in immune responsiveness is
caused by the costs of immune responses to the hosts. Oxidative damage resulting from the …