Life history trade-offs are influenced by the diversity, availability and interactions of dietary antioxidants

C Catoni, A Peters, HM Schaefer - Animal behaviour, 2008 - Elsevier
The expression of most life history traits, such as immunity, growth and the development of
sexual signals, is negatively affected by high levels of oxidative stress. Dietary antioxidants …

Variation in reproductive success across captive populations: methodological differences, potential biases and opportunities

SC Griffith, OL Crino, SC Andrew, FY Nomano… - Ethology, 2017 - Wiley Online Library
Our understanding of fundamental organismal biology has been disproportionately
influenced by studies of a relatively small number of 'model'species extensively studied in …

Carotenoids, immunocompetence, and the information content of sexual colors: an experimental test

KJ McGraw, DR Ardia - The American Naturalist, 2003 - journals.uchicago.edu
Many male birds use carotenoid pigments to acquire brilliant colors that advertise their
health and condition to prospective mates. The direct means by which the most colorful …

Gloger's rule, feather-degrading bacteria, and color variation among song sparrows

EH Burtt Jr, JM Ichida - The Condor, 2004 - academic.oup.com
Feathers tend to be darkly colored in habitats where relative humidity is high and pale where
it is low. We suggest that this correlation, known as Gloger's rule, results, in part, from …

An experimental test of the dose-dependent effect of carotenoids and immune activation on sexual signals and antioxidant activity

C Alonso-Alvarez, S Bertrand… - The American …, 2004 - journals.uchicago.edu
Carotenoid-based sexual traits are thought to be reliable indicators of male quality because
they might be scarce and therefore might indicate the ability of males to gather high-quality …

What does carotenoid-dependent coloration tell? Plasma carotenoid level signals immunocompetence and oxidative stress state in birds–a meta-analysis

MJP Simons, AA Cohen, S Verhulst - 2012 - journals.plos.org
Mechanisms maintaining honesty of sexual signals are far from resolved, limiting our
understanding of sexual selection and potential important parts of physiology. Carotenoid …

[图书][B] Carotenoids: physical, chemical, and biological functions and properties

JT Landrum - 2009 - taylorfrancis.com
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 …

Measuring circulating antioxidants in wild birds

A Cohen, K Klasing, R Ricklefs - … and Physiology Part B: Biochemistry and …, 2007 - Elsevier
Antioxidants protect against free radical damage, which is associated with various age-
related pathologies. Antioxidants are also an important buffer against the respiratory burst of …

Elytra color as a signal of chemical defense in the Asian ladybird beetle Harmonia axyridis

AL Bezzerides, KJ McGraw, RS Parker… - Behavioral Ecology and …, 2007 - Springer
Carotenoid-and melanin-based colors are valuable indicators of quality in many vertebrates,
but their signaling role in invertebrates remains relatively unexplored. The Asian ladybird …

Carotenoid‐based bill colour as an indicator of immunocompetence and sperm performance in male mallards

A Peters, AG Denk, K Delhey… - Journal of Evolutionary …, 2004 - academic.oup.com
Female mate choice is often based on exaggerated sexual traits, signals of male qualities
that females cannot assess directly. Two such key qualities are male immune and/or sexual …