Re-expression of songs deleted during vocal development in white-crowned sparrows, Zonotrichia leucophrys

被引:28
作者
Hough, GE [1 ]
Nelson, DA [1 ]
Volman, SF [1 ]
机构
[1] Ohio State Univ, Dept Ecol Evolut & Organismal Biol, Borror Lab Bioacoust, Columbus, OH 43210 USA
基金
美国国家卫生研究院; 美国国家科学基金会;
关键词
D O I
10.1006/anbe.2000.1498
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
White-crowned sparrows learn and produce multiple song types as juveniles, but most individuals stop singing all except one by the end of the first singing season. This single song type is generally maintained throughout adulthood. We demonstrate that, at the start of the second and subsequent singing seasons, this species can recall songs that had been deleted during the first singing season. The re-expression of song occurred in both the oriantha and the gambelii subspecies. Although all our males recrystallized the original song in the second year, our results indicate a mechanism for seasonal song change without new song memorization. The traditional dichotomy of closed-ended versus open-ended learning is inadequate for birds that learn early in life but can change their song output seasonally We suggest that species can exhibit a closed sensitive period for song memorization and first production, with the ability to recall deleted songs later in life. This type of learning, selective attrition followed by subsequent re-expression, may be used by some species currently considered open-ended learners. (C) 2000 The Association for the Study of Animal Behaviour.
引用
收藏
页码:279 / 287
页数:9
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