| Bat head contains soft magnetic particles: evidence from magnetism. | |
| | |
MedLine Citation:
|
PMID: 20607738 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
Recent behavioral observations have indicated that bats can sense the Earth's magnetic field. To unravel the magnetoreception mechanism, the present study has utilized magnetic measurements on three migratory species (Miniopterus fuliginosus, Chaerephon plicata, and Nyctalus plancyi) and three non-migratory species (Hipposideros armiger, Myotis ricketti, and Rhinolophus ferrumequinum). Room temperature isothermal remanent magnetization acquisition and alternating-field demagnetization showed that the bats' heads contain soft magnetic particles. Statistical analyses indicated that the saturation isothermal remanent magnetization of brains (SIRM(1T_brain)) of migratory species is higher than those of non-migratory species. Furthermore, the SIRM(1T_brain) of migratory bats is greater than their SIRM(1T_skull). Low-temperature magnetic measurements suggested that the magnetic particles are likely magnetite (Fe3O4). This new evidence supports the assumption that some bats use magnetite particles for sensing and orientation in the Earth's magnetic field. |
| | |
Authors:
|
Lanxiang Tian; Wei Lin; Shuyi Zhang; Yongxin Pan |
Related Documents
:
|
1790388 - Acoustic pressure wave generation within an mr imaging system: potential medical applic... 16418258 - Aapm/rsna physics tutorial for residents: mr artifacts, safety, and quality control. 19000698 - 3 t homogeneous static magnetic field of a clinical mr significantly inhibits pain in m... 16510948 - Development and testing of passive tracking markers for different field strengths and t... 20926868 - Ct enterography: is it the current state-of-the-art for small bowel diagnostics? 16580728 - Neuropathological, neurogenetic and neuroimaging evidence for white matter pathology in... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Bioelectromagnetics Volume: 31 ISSN: 1521-186X ISO Abbreviation: Bioelectromagnetics Publication Date: 2010 Oct |
Date Detail:
|
Created Date: 2010-09-14 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8008281 Medline TA: Bioelectromagnetics Country: United States |
Other Details:
|
Languages: eng Pagination: 499-503 Citation Subset: IM |
Affiliation:
|
Biogeomagnetism Group, Paleomagnetism and Geochronology Laboratory, Key Laboratory of the Earth's Deep Interior, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The lack of histological changes of CDMA cellular phone-based radio frequency on rat testis.
Next Document: Effects of 180 mT static magnetic fields on diabetic wound healing in rats.