| Magnetic compass orientation in the Eastern red-spotted newt (Notophthalmus viridescens). | |
| | |
MedLine Citation:
|
PMID: 3723427 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Laboratory tests were carried out to examine the orientation behavior of adult Eastern red-spotted newts (Notophthalmus viridescens) to earth-strength magnetic fields. Groups of 30 to 40 newts were housed in water-filled, all-glass aquaria with an artificial shoreline at one end. The aquaria were located in a greenhouse or outdoors adjacent to the laboratory building, and aligned on either the magnetic north-south or east-west axis. Tests were carried out in an enclosed indoor arena. Newts were tested in four horizontal alignments of the magnetic field: the ambient magnetic field (magnetic north at North) and three altered fields (magnetic north rotated to East, South or West). Data were analyzed after pooling the magnetic bearings from all four conditions in such a way as to retain the component of the newts' orientation that was a consistent response to the magnetic field. Elevation of training tank water temperature was used to increase the newts' motivation to orient in the direction of shore. Newts exposed to a training tank water temperature of 33-34 degrees C just prior to testing exhibited consistent unimodal magnetic compass orientation. The direction of orientation was altered predictably by changing training tank alignment and location relative to the laboratory building. The results provide the first evidence of a strong, replicable magnetic compass response in a terrestrial vertebrate under controlled laboratory conditions. Further, the present study demonstrates that the Eastern newt is able to learn a directional response relative to the earth's magnetic field. |
| | |
Authors:
|
J B Phillips |
Related Documents
:
|
3189947 - Effect of a 1.5 tesla magnetic field on greenfield filters in vitro and in dogs. 17780967 - Permanent lunar surface magnetism and its deflection of the solar wind. 10207957 - Static magnetic field and the inner ear. a functional study of hearing and vestibular f... 19610297 - First mr images obtained during megavoltage photon irradiation from a prototype integra... 22235857 - Dce-mri: a review and applications in veterinary oncology. 14499147 - Image-derived input function for [11c]flumazenil kinetic analysis in human brain. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
|
Title: Journal of comparative physiology. A, Sensory, neural, and behavioral physiology Volume: 158 ISSN: 0340-7594 ISO Abbreviation: J. Comp. Physiol. A Publication Date: 1986 Jan |
Date Detail:
|
Created Date: 1986-07-29 Completed Date: 1986-07-29 Revised Date: 2009-06-04 |
Medline Journal Info:
|
Nlm Unique ID: 8413199 Medline TA: J Comp Physiol A Country: GERMANY, WEST |
Other Details:
|
Languages: eng Pagination: 103-9 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Magnetics Male Notophthalmus viridescens / physiology* Orientation / physiology Salamandridae / physiology* |
| Grant Support | |
ID/Acronym/Agency:
|
5T32MHI5793/MH/NIMH NIH HHS; NS-19089/NS/NINDS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Effects of side slope on wheelchair performance.
Next Document: Responses of crayfish photoreceptor cells following intense light adaptation.