Territory establishment, song learning strategies and survival in song sparrows,Ethology

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Territory establishment, song learning strategies and survival in song sparrows
Ethology ( IF 1.3 ) Pub Date : 2020-02-21 , DOI: 10.1111/eth.13014
Çağlar Akçay _{1,

2} , S. Elizabeth Campbell ₃ , Saethra Darling ₃ , Michael D. Beecher _{3,

4}

Affiliation

In most songbirds, the processes of song learning and territory establishment overlap in the early life and a young bird usually winds up with songs matching those of his territorial neighbors in his first breeding season. In the present study, we examined the relationships among the timing of territory establishment, the pattern of song learning and territorial success in a sedentary population of song sparrows (Melospiza melodia). Males in this population tend to learn their songs from their neighbors and consequently they show high song sharing with neighbors and use these shared songs preferentially in interactions with them. Males also show significant variation in the timing of territory establishment, ranging from their natal summer to the next spring. Using a three‐year dataset, we found that the timing of territory establishment did not systematically affect the composition of the song repertoire of the tutee: early establishers and late establishers learned equally as much from their primary tutors and had a similar number of tutors and similar repertoire sizes, nor did timing of territory establishment affect subsequent survival on territory. Therefore, the song‐learning program of song sparrows seems versatile enough to lead to high song sharing even for birds that establish territories relatively late.

中文翻译：

鸣雀的领地建立、鸣歌学习策略与生存

在大多数鸣禽中，歌曲学习和领地建立的过程在生命早期是重叠的，幼鸟在第一个繁殖季节通常会以与领地邻居的歌曲相匹配的歌曲结束。在本研究中，我们研究了久坐的鸣雀 (Melospiza melodia) 的领地建立时间、歌曲学习模式和领地成功之间的关系。该人群中的男性倾向于从邻居那里学习他们的歌曲，因此他们表现出与邻居的高度分享歌曲，并在与他们的互动中优先使用这些分享的歌曲。雄性在领地建立的时间上也表现出显着差异，从他们出生的夏天到下一个春天。使用三年数据集，我们发现领土建立的时间并没有系统地影响学生歌曲曲目的组成：早期建立者和晚期建立者从他们的主要导师那里学到的东西一样多，导师人数相似，曲目大小相似，时间也没有领地建立影响后续在领地上的生存。因此，鸣雀的鸣叫学习程序似乎足够通用，即使对于相对较晚建立领土的鸟类来说，也能导致高频率的鸣叫。

更新日期：2020-02-21

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