Light-dependent magnetoreception in birds : increasing intensity of monochromatic light changes the nature of the response [PDF]
, 2007 Background The Radical Pair model proposes that magnetoreception is a light-dependent process. Under low monochromatic light from the short-wavelength part of the visual spectrum, migratory birds show orientation in their migratory direction.
Wiltschko, Roswitha +3 more
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Wind and sky as compass cues in desert ant navigation [PDF]
, 2018 While integrating their foraging and homing paths, desert ants, Cataglyphis fortis, depend on external compass cues. Whereas recent research in bees and ants has focused nearly exclusively on the polarization compass, two other compass systems—the sun ...
Müller, Martin, Wehner, Rüdiger
core
Vision Research, 1995 The grass shrimp (Palaemonetes vulgaris) orients itself by means of the polarization pattern of the sky visible through Snell's window of the water surface. The celestial polarization pattern viewed from water is distorted and modified because of refraction and repolarization of skylight at the air-water interface.
Horváth, Gábor, Varjú, Dezsö
openaire +2 more sources
The contribution of the diffuse light component to the topographic effect on remotely sensed data [PDF]
The topographic effect is measured by the difference between the global radiance from inclined surfaces as a function of their orientation relative to the sensor position and light source.
Holben, B., Justice, C.
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Optics Express, 2018 The polarization states of a skylight can be used for navigation by a lot of insects as well as by human beings. However, the polarization patterns of skylight are greatly influenced by the atmospheric conditions. This paper studied the polarization patterns of skylight under different sky conditions by polarized imaging measurements, in which the AOT (
Huijie, Zhao +6 more
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Specialized ommatidia of the polarization-sensitive dorsal rim area in the eye of monarch butterflies have non-functional reflecting tapeta [PDF]
, 2018 Many insects exploit sky light polarization for navigation or cruising-course control. The detection of polarized sky light is mediated by the ommatidia of a small specialized part of the compound eye: the dorsal rim area (DRA).
Baumann, Franziska +2 more
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Theory of spectral radiance of pollutants at sea, volume 1 [PDF]
Remote measurement of pollutants dumped in the sea, not oil slicks, but soluble pollutants that change the color of the water, is addressed. The sensor is a spectral radiometer that flies over the polluted area and compares its spectral radiance (color ...
core +1 more source
General-purpose and special-purpose visual systems [PDF]
, 2006 The information that eyes supply supports a wide variety of functions, from the guidance systems that enable an animal to navigate successfully around the environment, to the detection and identification of predators, prey, and conspecifics.
Land, Michael F, Nilsson, Dan-E
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The night-time temporal window of locomotor activity in the Namib Desert long-distance wandering spider, Leucorchestris arenicola [PDF]
, 2018 Even though being active exclusively after sunset, the male Leucorchestris arenicola spiders are able to return to their point of departure by following bee-line routes of up to several hundreds of meters in length.
Henschel, Joh +2 more
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The use of polarized light in the zonal orientation of the sandhopper Talitrus saltator (Montagu). [PDF]
Zoological Lett, 2023 Ugolini A +3 more
europepmc +1 more source