Breeding success is often dictated by the degree to which parents can synchronize the
maximum food requirements of offspring to the peak in abundance of invertebrate prey. Less …

Carotenoids are biologically active pigments of crucial importance for the development of
avian embryos and nestlings. Thus parental ability to provide nestlings with a carotenoid …

Micronutrient antioxidants are thought to be generally important for health in many animals,
but factors determining levels in individuals and species are not well understood. Diet and …

Although several studies have shown that carotenoid-based signals are negatively affected
by (metal) pollution, the underlying mechanisms are not well understood. There are two …

Carotenoids are biologically active pigments, which are important for animals due to their
dual role in health maintenance and ornamental signalling. In adult birds …

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 …

Oxidative stress (ie, more oxidants than antioxidants) has been proposed as a proximate
currency in life‐history trade‐offs, which if studied in an ecological setting allow a more …

The concept of parasite‐mediated sexual selection assumes that females may improve
offspring fitness by selecting mates on the basis of sexual ornaments that honestly reveal the …

The interest shown by ecologists in antioxidants and oxidative stress as potential modulators
of life‐history trade‐offs has expanded greatly in recent years. However, we still know very …

Carotenoid pigments are responsible for many of the red, yellow and orange plumage and
integument traits seen in birds. One idea suggests that since carotenoids can act as …