The spectral sensitivities of avian retinal photoreceptors are examined with respect to
microspectrophotometric measurements of single cells, spectrophotometric measurements …

Dramatic improvement of our understanding of the genetic basis of vision was brought by
the molecular characterization of the bovine rhodopsin gene and the human rhodopsin and …

Why does nature love symmetry? In Asymmetry, Developmental Stability and Evolution, M--
oslash--; ller and Swaddle analyse the evolutionary implications of symmetry. They advance …

Behavioral Ecology of Tropical Birds, Second Edition provides the most updated and
comprehensive review on the evolution of behavior in tropical landbirds. The book reviews …

There is a growing body of data on avian eyes, including measurements of visual pigment
and oil droplet spectral absorption, and of receptor densities and their distributions across …

It is increasingly realized that homoploid hybrid speciation (HHS), which involves no change
in chromosome number, is an important mechanism of speciation. HHS will likely increase in …

Microspectrophotometric examination of the retinal photoreceptors of the budgerigar (shell
parakeet), Melopsittacus undulatus (Psittaciformes) and the zebra finch, Taeniopygia guttata …

Carotenoids are a large group of more than 500 different biochemicals synthesized by
bacteria, fungi, algae and plants. Higher animals obtain these biologically active pigments in …

ABSTRACT A considerable body of primary research has accumulated over the last 10 yr
testing the relationship between developmental instability in the form of fluctuating …

Publisher Summary Birds can see ultraviolet (UV) light because, unlike humans, their lenses
and other ocular media transmit UV, and they possess a class of photoreceptor, which is …