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The results show that speakers with PD who had larger intelligibility reduction in noise exhibited decreased second formant transition, limited cepstral and spectral variations, and faster articulation rate. These findings suggest that the adverse effect of noise on speech intelligibility in PD is related to speech changes in the articulatory and phonatory systems.Wild animals like pheasant seem to be a good source of information about human activities. Therefore, the wild pheasants and relative stable appendix microcenosis were selecte