The effect of magnetic field-free space on the acoustic behavior of budgerigars ( Melopsittacus undulafus ) |
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| Authors: | Jin-Chang Jiang Hai-Qiang Jin Yun-Fang Lin Hao Chen Xin-Yu Yang Xiao-Ping Zeng and Xun Zhou |
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| Institution: | (1) Institute of Biophysics, Academia Sinica, 100101 Beijing, China;(2) Institute of Geophysics, China Seismological Bureau, 100081 Beijing, China |
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| Abstract: | The effect of magnetic field-free space (MFFS) on the acoustic behavior of budgerigar (Melopsittacus undulafus) is obvious. The daily frequency of their cries in uniform MFFS (UMFFS) and non-uniform MFFS (NMFFS) decreases by 44.7±10.0%
as compared with that in the geomagnetic field (GMF) on the average. The occupation rate of protesting cries (R
op) in NMFFS decreases by 8.5%–20.3% as compared with that in GMF on the average and shows an adaptability variation. In 75%
of the observation days, the R
op in UMFFS increases by 16.2%–23.3% as compared with that in GMF. As for the effect of MFFS on the rhythmic habits of budgerigars,
only the ending time of crying is affected to certain extent, 67 minutes earlier than in GMF on the average.
This paper is supported by the Chinese Joint Seismological Science Foundation. |
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| Keywords: | magnetic field-free space (MFFS) budgerigar (Melopsittacus undulafus) acoustic behavior |
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