Song-type matching between neighbouring song sparrows
Song-type matching between neighbouring song sparrows
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DOI：
10.1006/anbe.1999.1276
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发表时间：
2000-01-01
期刊：
影响因子：
2.5
通讯作者：
Nordby, JC
中科院分区：
文献类型：
--
作者：
Beecher, MD;Campbell, SE;Nordby, JC
在我们的研究种群中，相邻的歌雀通常分享它们6-10种歌唱类型中的两种或更多。在较早的一项实验中，我们发现，在回放邻居共享的歌曲时，通常会使用与邻居共享的不同歌曲(曲目匹配)来回复，而不是使用相同的歌曲(类型匹配)或非共享歌曲进行回复。在本实验中，我们考虑了类型匹配是威胁或警告信号的假设(Krebs等人。1981年，《动物行为》29,918-923)。我们测试了特定的预测，即一只鸟更有可能在繁殖季节的早期进行类型匹配，当时领土边界是新的且仍然不稳定，一旦这些边界得到很好的确立，就更有可能在本季度晚些时候进行曲目匹配。在繁殖季节，鸟被播放了一次新邻居的共同歌曲，一次是早期(4月)，另一次是后期(6月)。正如预测的那样，在季节早期，鸟类通常会匹配回放的类型(73%的试验)，但在季节后期，它们只有很少的类型匹配(18%)；鸟类从来不会(早或晚)回复非共享的歌曲类型。(C)2000年NIT动物行为研究协会。
In our study population, neighbouring song sparrows typically share two or more of their 6-10 song types. In an earlier experiment, we found that established neighbours typically reply to playback of neighbour-shared song with a different song they share with that neighbour ('repertoire matching'), rather than with the same song ('type matching') or with a nonshared song. In the present experiment, we considered the hypothesis that type matching is a threat or warning signal (Krebs et al. 1981, Animal Behaviour, 29, 918-923). We tested the specific prediction that a bird is more likely to type-match early in the breeding season when territory boundaries are new and still unstable, and more likely to repertoire-match later in the season,once those boundaries have became well established. Birds were played a shared song of a new neighbour once early (April) and again late (June) in the breeding season. As predicted, early in the season birds usually type-matched the playback (73% of the trials) but late in the season they type-matched only rarely (18%); birds never replied (early or late) with a nonshared song type. (C) 2000 nit Association for the Study of Animal Behaviour.