Oxidative stress is usually defined as an imbalance arising when the rate of production of
reactive oxygen species (ROS) exceeds the capacity of the antioxidant defence and repair …

Mechanisms maintaining honesty of sexual signals are far from resolved, limiting our
understanding of sexual selection and potential important parts of physiology. Carotenoid …

Anthropogenic noise is widespread in nature and has been shown to produce a plethora of
impacts on wildlife. Sounds play a fundamental role in the lives of amphibians, with species …

Carotenoids are of great interest due to their essential biological functions in both plants and
animals. However, the properties and functions of carotenoids in natural systems are …

Ecologists have acknowledged the fact that environmental conditions strongly affect life-
history strategies in the wild. However, when working in captivity, they appear to overlook …

During the last decade, many studies have focused on the detrimental effects of noise
pollution on acoustic communication. Surprisingly, although it is known that noise exposure …

Interest in female ornamentation has burgeoned recently, and evidence suggests that
carotenoid-based female coloration may function as a mate-choice signal. However, the …

Life history parameters appear to be traded off against each other, but the physiological
mechanisms involved remain unclear. One hypothesis is that potentially energetically costly …

Avian plumage has captivated scientists and the public alike for generations and has been a
fundamental study system for research into signal evolution. By contrast, relatively little …

Male zebra finches display multiple secondary sexual traits such as song and red bill
coloration. This color is dependent on carotenoids, which enhance immune function and are …