Brighter coloration indicates increased salience.
In turn, males show brighter coloration, are territorial, and are aggressive toward other males.
The difference between the levels of contrast agent reaching the brain in infected animals compared with their uninfected counterparts is apparent on examination of the percentage signal change maps shown in Figure 1, where images from infected mice show many areas of brighter coloration, indicating regions where contrast agent is present.
Energetic costs of producing toxins and bright color pigments lead to potential trade-offs between toxicity and bright coloration.
Moreover, one relatively defenseless species, a filefish, is an excellent mimic in body form and bright coloration of a poisonous puffer.
Both demand virtuosity and bright coloration, and Mr. Zander's readings bristled with energy and showed off the solidity of his brass sections and his players' ability to maintain a superbly balanced and polished ensemble at brisk speeds.
Hearing these works as an uninterrupted stream of music, played with the energy and bright coloration these musicians brought to them, made for an interesting and often exciting experience.
Subsequent freedom from attachment, as in the scallops (Pectinidae), is associated with an almost circular outline, flat upper and cup-shaped lower valves, a deep radial sculpture, and, typically, bright coloration (Pecten).
As it was expected from the dynamic adsorption data, bright coloration of the adsorbent and corresponding intense bands in the visible spectrum range were observed only for active phenolic compounds: 1-naphthol (λ max = 530 nm), 2-naphthol (λ max = 490 nm), and resorcinol (λ max = 440 nm), whereas for less active phenol and catechol, the adsorbent coloration was moderate.
This influx of females from another location keeps the population genetically healthy, even though all the girls still prefer the same bright coloration in a guy, says Badyaev, whose team reports its results online April 18 in Proceedings of the Royal Society B. "It's a nice way of resolving the paradox," says ornithologist Peter Dunn of the University of Wisconsin in Milwaukee.
Their bright coloration advertises unpalatability to potential predators.
