... mechanisms that could impede successful tabanid landings (aliasing, contrast and polarization) but additionally explored pattern element size employing video footage of horseflies around differently patterned coats placed on domestic horses. We found that horseflies are averse to landing on highly...

...James J. Foster; John D. Kirwan; Basil el Jundi; Jochen Smolka; Lana Khaldy; Emily Baird; Marcus J. Byrne; Dan-Eric Nilsson; Sönke Johnsen; Marie Dacke ABSTRACT For polarized light to inform behaviour, the typical range of degrees of polarization observable in the animal's natural environment must...

...Finlay J. Stewart; Michiyo Kinoshita; Kentaro Arikawa ABSTRACT The swallowtail butterfly Papilio xuthus can perceive the linear polarization of light. Using a novel polarization projection system, we recently demonstrated that P. xuthus can detect visual motion based on polarization contrast...

...Melanie Ailín Basnak; Verónica Pérez-Schuster; Gabriela Hermitte; Martín Berón de Astrada ABSTRACT Many animal species take advantage of polarization vision for vital tasks such as orientation, communication and contrast enhancement. Previous studies have suggested that decapod crustaceans use...

...Thomas W. Cronin; Nadav Shashar SUMMARY Sensitivity to polarized light is widespread among marine animals, including crustaceans, cephalopods and some fishes. They use this ability to orient and find prey, and possibly for a number of other visual tasks. Unlike the ultraviolet-sensitive...

...Iñigo Novales Flamarique; Howard I. Browman SUMMARY Several fish species appear to be polarization sensitive, i.e. to be able to discriminate a light source’s maximum plane of polarization from any other plane. However, the functional significance of this ability remains unclear. We tested...

...Gábor Horváth; Dezsö Varjú ABSTRACT The reflection-polarization patterns of small freshwater habitats under clear skies can be recorded by video polarimetry in the red, green and blue ranges of the spectrum. In this paper, the simple technique of rotating-analyzer video polarimetry is described...

..., invoking a role for both Ca 2+ influx and localized propagation of the sperm signal around the plasma membrane by an as yet unidentified mechanism. Polarity in Fucus serratus is acquired a considerable time after fertilization and the role of cytosolic Ca 2+ gradients in the acquisition and expression...