Detailed Information on Publication Record
2008
Tenebrio beetles use magnetic inclination compass
VÁCHA, Martin, Dana DRŠTKOVÁ and Tereza PŮŽOVÁBasic information
Original name
Tenebrio beetles use magnetic inclination compass
Name in Czech
Potemník moučný používá inklinační magnetický kompas.
Authors
VÁCHA, Martin (203 Czech Republic, guarantor), Dana DRŠTKOVÁ (203 Czech Republic) and Tereza PŮŽOVÁ (203 Czech Republic)
Edition
Naturwissenschaften, 2008, 0028-1042
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30105 Physiology
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.126
RIV identification code
RIV/00216224:14310/08:00024671
Organization unit
Faculty of Science
UT WoS
000257395800010
Keywords in English
Insect Tenebrio Magnetoreception Compass Inclination
Tags
International impact, Reviewed
Změněno: 26/6/2009 11:02, doc. RNDr. Martin Vácha, Ph.D.
V originále
Animals that guide directions of their locomotion or their migration routes by the lines of the geomagnetic field use either polarity or inclination compasses to determine the field polarity (the north or south direction). Distinguishing the two compass types is a guideline for estimation of the molecular principle of reception and has been achieved for a number of animal groups, with the exception of insects. A standard diagnostic method to distinguish a compass type is based on reversing the vertical component of the geomagnetic field, which leads to the opposite reactions of animals with two different compass types. In the present study, adults of the mealworm beetle Tenebrio molitor were tested by means of a two-step laboratory test of magnetoreception. Beetles that were initially trained to memorize the magnetic position of the light source preferred, during the subsequent test, this same direction, pursuant geomagnetic cues only. In the following step, the vertical component was reversed between the training and the test. The beetles significantly turned their preferred direction by 180 degrees. Our results brought until then unknown, original findings that insects, represented here by the Tenebrio molitor species, use - in contrast to another previously researched Arthropod, spiny lobster - the inclination compass.
In Czech
Animals that guide directions of their locomotion or their migration routes by the lines of the geomagnetic field use either polarity or inclination compasses to determine the field polarity (the north or south direction). Distinguishing the two compass types is a guideline for estimation of the molecular principle of reception and has been achieved for a number of animal groups, with the exception of insects. A standard diagnostic method to distinguish a compass type is based on reversing the vertical component of the geomagnetic field, which leads to the opposite reactions of animals with two different compass types. In the present study, adults of the mealworm beetle Tenebrio molitor were tested by means of a two-step laboratory test of magnetoreception. Beetles that were initially trained to memorize the magnetic position of the light source preferred, during the subsequent test, this same direction, pursuant geomagnetic cues only. In the following step, the vertical component was reversed between the training and the test. The beetles significantly turned their preferred direction by 180 degrees. Our results brought until then unknown, original findings that insects, represented here by the Tenebrio molitor species, use - in contrast to another previously researched Arthropod, spiny lobster - the inclination compass.
Links
| GA206/05/0911, research and development project |
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| GC206/07/J041, research and development project |
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| MSM0021622416, plan (intention) |
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