Summary
The response of a bristle field sensillum inApis mellifica may be described as follows.
-
1.
Distinct artificial magnetic fields (especially tilting of the static vector) influence the impulse frequency of the sensory cell.
-
2.
At certain hours of the day characteristic changes of the impulse frequency occur.
-
3.
Under predominantly natural magnetic field (MF) conditions there are significant correlations between the variation of selected MF components and impulse frequency (IMP). However, when a spatially oscillating MF-vector is applied, the IMP course does not always show a formal coincidence with MF variation.
-
4.
Our hypothesis is that in this case the trigonometric constellation of sun (S) and moon (M) becomes the dominant guiding factor.
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5.
IMP frequency — with a given total azimuthal shift of the SM-system — may be calculated by the following equation using S and M azimuth and height data:
$$IMP_{freq} = \pm (0.46 \cdot (\sin Az_S + \sin h_S ) + (sin Az_M + \sin h_M ))/\Delta t$$Az=azimuth (in angular degrees),h=height (in angular degrees).
-
6.
A quantization of the space in 90° steps and the preference of the north-south direction in this orientation system are evident. MF influences are discussed in relation to nuclear magnetic resonance; effects caused by the sun-moon constellation seem to be a gravitational modulation. A partial synthesis of both parameters is possible. Those results are discussed from a quantum mechanical point of view.
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Abbreviations
- Az M :
-
azimuth of the moon
- Az S :
-
azimuth of the sun
- B :
-
magnetic induction in Gauss
- B o :
-
static magnetic field in Gauss
- β :
-
nuclear magneton = 0.5050 · 10−23 erg/Gauss
- β n :
-
Bohr magneton = 0.9273·10−20 erg/Gauss
- γ :
-
1γ=10−5 Oe
- gg/2π :
-
gyromagnetic ratio (a nuclear specific constant) in Hz/Gauss
- ΔC :
-
MF-variation of one of the components X, Y, Z
- ΔE :
-
energy in erg (1 erg=10−7 W·s)
- EMF :
-
earth's magnetic field
- ESR :
-
electron spin resonance
- g :
-
Landé-factor (without dimension) for the electron: 2.0023, for the proton: 5.5855
- H :
-
magnetic field force in Oersted
- h :
-
Planck's constant 6.6256·10−34 Js
- h M :
-
height of the moon
- h S :
-
height of the sun
- IMP :
-
impulses of the sensory cell
- k :
-
Boltzmann-constant=1.3804·10−16 erg/Kelvin
- MET :
-
middle European time
- MF :
-
magnetic field
- m S :
-
magnetic spin moment (+or −)
- n 1,n 2 :
-
population number of nuclear spin states at the lower and upper energy level. The ratio n2/n1 is governed by the Boltzmann law
- NMR :
-
nuclear magnetic resonance
- v o :
-
resonance frequency in Hertz
- Oe :
-
Oersted, unit of the magnetic field force
- SEMI :
-
semi-transformation
- SMC :
-
sun-moon constellation
- T :
-
absolute temperature in Kelvin
- TOTAL :
-
total transformation
- ω :
-
angular frequency
- ω L :
-
Larmor-frequency
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Dedicated in gratitude to Prof. Dr. Drs. h.c. M. Lindauer.
This research was supported by the Akademie der Wissenschaf-ten und der Literatur, Mainz, and the Deutsche Forschungsge-meinschaft
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Korall, H., Martin, H. Responses of bristle field sensilla inApis mellifica to geomagnetic and astrophysical fields. J. Comp. Physiol. 161, 1–22 (1987). https://doi.org/10.1007/BF00609451
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DOI: https://doi.org/10.1007/BF00609451