title: The influence of static magnetic field (50 mT) on development and motor behaviour of Tenebrio (Insecta, Coleoptera).
abstract: OBJECTIVE
  There is considerable concern about potential effects associated with exposure to magnetic fields on organisms. Therefore, duration of pupa-adult development and motor behaviour of adults were analyzed in Tenebrio obscursus and T. molitor after exposure to static magnetic field (50 mT).
  
  
  METHODS
  The experimental groups were: Control (kept 5 m from the magnets), groups which pupae and adults were placed closer to the North pole, or closer to the South pole of magnetic dipole. The pupae were exposed to the magnetic field until the moment of adult eclosion. The pupa-adult development dynamics were recorded daily. Subsequently, behaviour (distance travelled, average speed and immobility) of adults exposed to the magnetic field was monitored in a circular open field arena.
  
  
  RESULTS
  Static magnetic field did not affect pupa-adult developmental dynamic of examined Tenebrio species. Exposure to magnetic field did not significantly change motor behaviour of T. obscurus adults. The changes in the motor behaviour of T. molitor induced by static magnetic field were opposite in two experimental groups developed closer to the North pole or closer to the South pole of magnetic dipole.
  
  
  CONCLUSIONS
  Static magnetic field (50 mT) did not affect on pupa-adult development dynamic of two examined Tenebrio species, but modulated their motor behaviour.
authors: Institute for Biological Research, University of Belgrade, Serbia. dajana@ibiss.bg.ac.rs
authors: Dajana
authors: D
authors: Todorović
authors: Tamara
authors: T
authors: Marković
authors: Zlatko
authors: Z
authors: Prolić
authors: Spomenko
authors: S
authors: Mihajlović
authors: Snežana
authors: S
authors: Rauš
authors: Ljiljana
authors: L
authors: Nikolić
authors: Branka
authors: B
authors: Janać
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D060526:Magnetic Fields / Q000009:adverse effects*; D009043:Motor Activity; D011679:Pupa / Q000254:growth & development / Q000502:physiology; D013045:Species Specificity; D013712:Tenebrio / Q000254:growth & development* / Q000502:physiology*