Results 31 to 40 of about 5,743 (224)

The magnetite-based receptors in the beak of birds and their role in avian navigation [PDF]

open access: yes, 2012
Iron-rich structures have been described in the beak of homing pigeons, chickens and several species of migratory birds and interpreted as magnetoreceptors.
Wiltschko, Roswitha, Wiltschko, Wolfgang
core   +1 more source

Hypomagnetic Conditions and Their Biological Action (Review)

open access: yesBiology, 2023
The geomagnetic field plays an important role in the existence of life on Earth. The study of the biological effects of (hypomagnetic conditions) HMC is an important task in magnetobiology. The fundamental importance is expanding and clarifying knowledge
Ruslan M. Sarimov   +2 more
doaj   +1 more source

Light-dependent magnetoreception in birds : increasing intensity of monochromatic light changes the nature of the response [PDF]

open access: yes, 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
core   +3 more sources

Upper bound on the biological effects of 50/60 Hz magnetic fields mediated by radical pairs

open access: yeseLife, 2019
Prolonged exposure to weak (~1 μT) extremely-low-frequency (ELF, 50/60 Hz) magnetic fields has been associated with an increased risk of childhood leukaemia.
PJ Hore
doaj   +1 more source

Zebrafish and medaka offer insights into the neurobehavioral correlates of vertebrate magnetoreception

open access: yesNature Communications, 2018
Advances in animal magnetoreception have been limited by a lack of tractable vertebrate laboratory models. Here, the authors demonstrate light-independent magnetoreception in mature zebrafish and medaka, as well as magnetosensitive locomotion in juvenile
Ahne Myklatun   +7 more
doaj   +1 more source

Magnetoreceptory Function of European Robin Retina: Electrophysiological and Morphological Non-Homogeneity

open access: yesCells, 2022
The avian magnetic compass allows orientation during migration and is shown to function properly under short-wavelength but not long-wavelength visible light.
Alexander Yu. Rotov   +5 more
doaj   +1 more source

Magnetoreception in birds [PDF]

open access: yesJournal of The Royal Society Interface, 2019
Birds can use two kinds of information from the geomagnetic field for navigation: the direction of the field lines as a compass and probably magnetic intensity as a component of the navigational ‘map’. The direction of the magnetic field appears to be sensed via radical pair processes in the eyes, with the crucial radical pairs formed by cryptochrome ...
Roswitha Wiltschko, Wolfgang Wiltschko
openaire   +2 more sources

The Parietal Eye of Lizards (Pogona vitticeps) Needs Light at a Wavelength Lower than 580 nm to Activate Light-Dependent Magnetoreception

open access: yesAnimals, 2020
In a previous study, the agamid lizard Pogona vitticeps was discovered to respond to an electromagnetic field (EMF) of extremely low frequency (6 and 8 Hz; peak magnetic and electric fields of 2.6 µT and 10 V/m, respectively).
Tsutomu Nishimura
doaj   +1 more source

Magnetic particle-mediated magnetoreception [PDF]

open access: yesJournal of The Royal Society Interface, 2015
Behavioural studies underpin the weight of experimental evidence for the existence of a magnetic sense in animals. In contrast, studies aimed at understanding the mechanistic basis of magnetoreception by determining the anatomical location, structure and function of sensory cells have been inconclusive. In this review, studies attempting to demonstrate
Shaw, Jeremy   +7 more
openaire   +4 more sources

European Robin Cryptochrome-4a Associates with Lipid Bilayers in an Ordered Manner, Fulfilling a Molecular-Level Condition for Magnetoreception. [PDF]

open access: goldACS Chem Biol
Majewska M   +9 more
europepmc   +3 more sources

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