Role of vocalizations in the reproductive cycle of ring doves (Streptopelia risoria): effects of hypoglossal nerve section on the reproductive behavior and physiology of the female |
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Authors: | J Cohen M F Cheng |
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Affiliation: | Institute of Animal Behavior, Rutgers University, 101 Warren Street, Newark, New Jersey 07102 USA |
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Abstract: | The role of vocalizations in the reproductive cycle of female ring doves was investigated. Two-stage bilateral hypoglossal nerve section (HNS) was performed on adult females to alter their cooing and they were observed for courtship behavior with the same stimulus males used in preoperation behavioral tests. The HNS females showed a reduction in both the vocalization and wing flipping components of nest-coos but no changes in other female courtship behaviors. In addition, the HNS females failed to show the typical male courtship-induced follicular growth observed in sham-operated females. The behavior of stimulus males did not differ between groups and therefore could not account for the failure of follicular growth in the HNS females. These data suggest that the female's performance of nest-coos, or factors associated with it, may stimulate her own follicular growth. |
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Keywords: | To whom all reprint requests should be addressed. |
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