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Interspecific and intraspecific views of color signals in the strawberry poison frog Dendrobates pumilio
- A. Siddiqi, T. Cronin, E. Loew, M. Vorobyev, K. Summers
- BiologyJournal of Experimental Biology
- 15 June 2004
The results indicate that the colors displayed by the various color morphs of D. pumilio are effective signals both to conspecifics and to a model predator.
Statistics of cone responses to natural images: implications for visual coding
The data are expressed most simply in a logarithmic response space, wherein an orthogonal decorrelation robustly produces three principal axes, one corresponding to simple changes in radiance and two reminiscent of the blue–yellow and red–green chromatic-opponent mechanisms found in the primate visual system.
The Eyes Have It: Regulatory and Structural Changes Both Underlie Cichlid Visual Pigment Diversity
- C. M. Hofmann, K. O'Quin, N. Marshall, T. Cronin, O. Seehausen, K. Carleton
- BiologyPLoS biology
- 1 December 2009
Differential gene expression and coding sequence evolution play complementary roles in the adaptive diversification of cichlid sensory systems.
The Cenozoic palaeoenvironment of the Arctic Ocean
This record of the Neogene reveals cooling of the Arctic that was synchronous with the expansion of Greenland ice and East Antarctic ice and supporting arguments for bipolar symmetry in climate change.
Spectral tuning of avian violet- and ultraviolet-sensitive visual pigments.
- S. Wilkie, P. Robinson, T. Cronin, S. Poopalasundaram, J. Bowmaker, D. Hunt
- 14 June 2000
This paper presents the sequences of two pigments isolated from Humbolt penguin and pigeon with intermediate lambda(max) values of 403 and 409 nm, respectively and identifies five amino acid sites that show a pattern of substitution between species that is consistent with differences inlambda(max).
The UV visual world of fishes: a review
- G. Losey, T. Cronin, T. Goldsmith, D. Hyde, N. Marshall, W. McFarland
- Environmental Science
- 1 May 1999
Discovery of UV visual pigments with peak absorption at around 360 nm in teleost cone photoreceptors indicates that many teleost fishes may be adapted for vision in the UV range, and suggests that UV vision may well be co-opted through natural selection for other functions.
Variation in spectral reflectance among populations of Dendrobates pumilio, the strawberry poison frog, in the Bocas del Toro Archipelago, Panama
It is argued that variation in coloration may have been enhanced by sexual selection, and there is some evidence for clinal variation in colour and pattern across some mainland populations.
Estuarine retention of larvae of the crab Rhithropanopeus harrisii
- T. Cronin
- Environmental Science
- 1 August 1982
Shedding new light on opsin evolution
- M. Porter, J. Blasic, P. Robinson
- BiologyProceedings of the Royal Society B: Biological…
- 7 January 2012
This work uses an extensive phylogeny of currently known opsin sequence diversity as a foundation for examining the evolutionary distributions of key functional features within the opsin clade, and illustrates the lability of opsin protein-expression patterns, site-specific functionality and G-protein binding interactions.
Melanopsin forms a functional short-wavelength photopigment.
- Lucy A Newman, M. T. Walker, R. L. Brown, T. Cronin, P. Robinson
- 11 November 2003
The experiments constitute the first direct demonstration that melanopsin forms a photopigment capable of activating a G-protein, but its spectral properties are not consistent with the action spectrum for circadian entrainment.