2008
Tenebrio beetles use magnetic inclination compass
VÁCHA, Martin, Dana DRŠTKOVÁ a Tereza PŮŽOVÁZákladní údaje
Originální název
Tenebrio beetles use magnetic inclination compass
Název česky
Potemník moučný používá inklinační magnetický kompas.
Autoři
VÁCHA, Martin (203 Česká republika, garant), Dana DRŠTKOVÁ (203 Česká republika) a Tereza PŮŽOVÁ (203 Česká republika)
Vydání
Naturwissenschaften, 2008, 0028-1042
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30105 Physiology
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.126
Kód RIV
RIV/00216224:14310/08:00024671
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000257395800010
Klíčová slova anglicky
Insect Tenebrio Magnetoreception Compass Inclination
Příznaky
Mezinárodní význam, Recenzováno
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.
Česky
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.
Návaznosti
| GA206/05/0911, projekt VaV |
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| GC206/07/J041, projekt VaV |
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| MSM0021622416, záměr |
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