Magnetic reception (biology)
Keeton, William T. Formerly, Section of Neurobiology and Behavior, Langmuir Laboratory, Division of Biological Sciences, Cornell University, Ithaca, New York.
- Links to Primary Literature
- Additional Readings
Sensitivity to magnetic stimuli. For more than a century, biologists have speculated whether any living organism can detect magnetic stimuli, especially the very weak ones occurring naturally in the environment (the intensity of the Earth's magnetic field, the geomagnetic field, is roughly 0.5 gauss). A great variety of biological effects resulting from exposure to fields many thousands of times more intense than Earth's have been reported. Among these are changes in plant growth rates, retardation of embryo development, changes in enzyme activity, alterations of tumor growth, and other indications of stress. While the evidence for some of the reported effects is not very convincing, it does seem likely that, under certain conditions, such intense fields can indeed produce stress effects in living tissues similar to the effects of factors such as extremes of heat, cold, or starvation. This article is primarily concerned with sensory detection, not with stress effects, and focuses primarily on fields of geomagnetic intensities.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 42 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information