Now showing items 1-10 of 34
Water bucket colour preferences in horsesWater bucket colour preferences in horses
(Faculty of Veterinary Sciences - Universidad Austral de Chile, 2020)
Towards a New Colour Appearance Model for Self-luminous Stimuli
(Illuminating Engineering Institute of Japan, 2017-03)
Based on the experimental visual data obtained for self-luminous stimuli surrounded by a dark background,a new colour appearance model (CAM) for unrelated self-luminous stimuli, CAM15u, was previouslydeveloped. To extend ...
Differential predation by mammals and birds: Implications for egg-colour polymorphism in a nomadic breeding seabird
(Oxford University Press, 2002-02)
Selection for crypsis in varying environments has long been established as the main evolutionary force promoting the huge variation in avian egg coloration. In several avian species, variation in egg coloration exists, but ...
Chromatic variability and sexual dimorphism in the rocky lizard phymaturus verdugo
(National Research Council Canada-NRC Research Press, 2018-06)
The genus Phymaturus comprises lizards that inhabit cold environments at high altitudes or latitudes. Phymaturus verdugo Cei and Videla, 2003 is characterized by cephalic melanism, which is interpreted as a character present ...
Variation in multicomponent recognition cues alters egg rejection decisions: A test of the optimal acceptance threshold hypothesis
(The Royal Society, 2019-04)
The optimal acceptance threshold hypothesis provides a general predictive framework for testing behavioural responses to discrimination challenges. Decision-makers should respond to a stimulus when the perceived difference ...
Analysis from avian visual perspective reveals plumage colour differences among females of capuchino seedeaters (Sporophila)
(Wiley Blackwell Publishing, Inc, 2010-11)
Females of the closely related capuchino seedeaters are difficult to distinguish from one another based on human visual perception of colouration and morphology. We examined plumage colour differences among females of four ...
Color and Marbling as Predictors of Meat Quality Perception of Argentinian Consumers
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-06-24)
In Argentina, color and intramuscular fat are the main attributes of raw beef quality; however, it is necessary to clarify how consumers use them, in order to establish different marketing strategies. Consumer preferences ...
Effects of storage time and boiling on root tuber colour in two sweet potato [Ipomoea batatas L. (Lam.)] cultivars
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, España, 2004)
The aim of this work was to determine the effect of storage time and boiling on the colour of sweet potato (cvs. Morada INTA and Regal) root tubers. Increasing storage time more strongly reduced the skin chroma (C*) of raw ...
Foveal spatial summation in human cone mechanism
(Pion Ltd, 2011-08)
We measured at the fovea the chromatic contrast threshold for stimuli modulated along different chromatic directions in the isoluminant plane of MBDKL colour space, considering the two cardinal axes (L+M) and S/(L+M) and ...