Signalization of the Bottlenose Dolphin During the Adaptation to Different Stressors
The results of our investigations (Sidorova et al., 1986) and the analysis of literature (Caldwell and Caldwell, 1965; Caldwell and Caldwell, 1977; Herman and Tavolga, 1980) indicate that the acoustic signalization of the bottlenose dolphin becomes stereotyped in different stressful and exciting situations. In fact, in these cases each dolphin begins to reiterate the only one, “individual” (Caldwell and Caldwell, 1965) whistle. In normal conditions, signalization is much more divergent. This leads to a supposition that the diversity of dolphin signalization depends upon the conditions around the animals, and, evidently, is connected with their physiological state. The aim of our investigation was to study the possibility of using signalization parameters for the assessment of the animals’ state. We were to study the four main points: (1) whether or not the stereotyped signalization appears only in stressful situations; (2) commonalities in the conditions under which it is evoked; (3) signalization changes during the adaptation of the animals to different stressors; and (4) whether the peculiarities of the situation and the general level of adaptation of a particular animal to the life in captivity influence the parameters of stress signalization.
KeywordsAcoustic Activity Food Motivation Individual Pool Emotional Excitement Signal Whistle
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- Caldwell, D. K., and Caldwell M. C., 1977, Cetaceans, in: “How animals communicate,” T. A. Sebeok, ed., Indiana Univ. Press, Bloomington.Google Scholar
- Herman, L. M., and Tavolga, W. N., 1980, The communication systems of cetaceans, in: “Cetacean behavior. Mechanisms and functions,” L. M. Herman, ed., Wiley & Sons, Inc., New York.Google Scholar
- Sidorova, I. E., Markov, V. I., and Ostrovskaya, V. M., 1986, Dynamics of signalization of the bottlenosed dolphin in the process of adaptation to stress factors, in,: “Izuchenije, okhrana i ratsionalnoje ispolzo-vanije morskikh mlekopitajuqikh,” V. A. Zemskiy, ed., Archangelsk.Google Scholar