Oxidative stress as a mediator of life history trade‐offs: mechanisms, measurements and interpretation

P Monaghan, NB Metcalfe, R Torres - Ecology letters, 2009 - Wiley Online Library
The concept of trade‐offs is central to our understanding of life‐history evolution. The
underlying mechanisms, however, have been little studied. Oxidative stress results from a …

Melanin-versus carotenoid-based sexual signals: is the difference really so black and red?

SC Griffith, TH Parker, VA Olson - Animal Behaviour, 2006 - Elsevier
A large number of coloured sexually selected ornamental traits in the animal kingdom are
based on carotenoid and melanin pigments. The biochemical differences between these two …

Using digital photography to study animal coloration

M Stevens, CA Párraga, IC Cuthill… - Biological Journal of …, 2007 - academic.oup.com
In understanding how visual signals function, quantifying the components of those patterns
is vital. With the ever-increasing power and availability of digital photography, many studies …

[图书][B] The biology of moult in birds

L Jenni, R Winkler - 2020 - books.google.com
The first comprehensive review of all aspects of the biology of moult, drawing information
from across the literature and in all birds, from penguins to passerines. Feathers are …

The vitamin A–redox hypothesis: a biochemical basis for honest signaling via carotenoid pigmentation

GE Hill, JD Johnson - The American Naturalist, 2012 - journals.uchicago.edu
Trade-offs in resource allocation have been widely stated as the means by which the
honesty of ornamental traits is maintained, but an alternative to this resource trade-off …

Pigment-based skin colour in the blue-footed booby: an honest signal of current condition used by females to adjust reproductive investment

A Velando, R Beamonte-Barrientos, R Torres - Oecologia, 2006 - Springer
In monogamous species, the value of present reproduction is affected by the current
condition of the mate, and females may use male ornaments to evaluate his condition and …

Testosterone increases bioavailability of carotenoids: insights into the honesty of sexual signaling

J Blas, L Pérez-Rodríguez… - Proceedings of the …, 2006 - National Acad Sciences
Androgens and carotenoids play a fundamental role in the expression of secondary sex
traits in animals that communicate information on individual quality. In birds, androgens …

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 trade-off between parasitic resistance and sexual display: an experimental study in the blackbird (Turdus merula)

R Baeta, B Faivre, S Motreuil… - Proceedings of the …, 2008 - royalsocietypublishing.org
Many parasites depress the expression of the carotenoid-based colour displays of their
hosts, and it has been hypothesized that animals face a trade-off in carotenoid allocation …

Do dietary antioxidants alleviate the cost of immune activation? An experiment with greenfinches

P Hõrak, L Saks, M Zilmer, U Karu… - The American …, 2007 - journals.uchicago.edu
Reactive oxygen and nitrogen species produced by metabolism and immune defenses can
cause extensive damage to biomolecules. To counteract this damage, organisms rely on …