How do young black-tailed gulls (Larus crassirostris) recognize adult voice signals?
박시령, 정훈,
소속 상세정보
박시령 ( Park Shi-Ryong ) - Korea National University of Educatoin Department of Biology Education
정훈 ( Chung Hoon ) - Korea National University of Education Department of Biology Education
Abstract
This study was conducted to find out how young black?tailed gulls (Larus crassirostris) recognize adult voice signals after hatching. For the experiment, adult voice recorded in the natural environment was played back at controlled intervals and intensity (dB) to 15 young gulls that were artificially hatched in the laboratory. The chirirah call frequency of young gulls increased as the intensity of the mew call increased. The chirirah response of the control group was highest to the mew call at intervals of 1.8 s. The adult long call and alarm call also showed similar results to the mew call when the interval and intensity were manipulated similar to the mew call. Based on the results of this experiment, it is assumed that the young black?tailed gulls recognize adult voice signals based on the simple structure of adult voice signals, that is, the interval and intensity of the voice.
키워드
Black?tailed gull; Larus crassirostris; Voice signal; Mew call
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