Do female great tits (Parus major) assess males by eavesdropping? A field study using interactive song playback
Do female great tits (Parus major) assess males by eavesdropping? A field study using interactive song playback
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雌性大山雀会通过窃听来评估雄性吗？
DOI：
10.1098/rspb.1999.0779
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
T. Dabelsteen
中科院分区：
文献类型：
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作者：
K. Otter;P. McGregor;Andrew M. R. Terry;F. Burford;T. Peake;T. Dabelsteen
在一些雀形目鸟类中，雄性的歌唱行为与额外的配对成功有关。在领土争夺过程中的歌声互动提供了有关雄性的相关信息。这些信息可能对雌性的额外配对行为很重要，偷听雄性之间的唱歌互动可以让雌性做出这样的相对评估。在雄性大山雀的繁殖期，我们使用交互式回放的方法来煽动它们与雄性大山雀进行歌唱比赛，试图改变雌性对伴侣相对于邻居（潜在的额外伴侣）质量的评估。我们将竞争升级到一只雄性（通过重叠他的歌曲），然后将竞争降级（通过交替）到一个邻居。然后监测与任一实验组雄鼠交配的雌鼠入侵邻近领地的情况。与降级处理组相比，与升级处理组配对的雌性更有可能在回放后入侵。虽然雄性的绝对鸣声输出在不同处理之间没有差异，但在降级处理中，雄性的鸣声输出相对于播放更多，相对鸣声输出与雌性入侵呈正相关。因此，雌性大山雀会偷听对方的歌声，并根据配偶相对于邻居的歌声表现，改变对邻近地区的访问率。
Male singing behaviour correlates with extra–pair success in several passerine birds. Singing interactions during territorial contests provide relative information on the males involved. Such information may be important in female extra–pair behaviour and eavesdropping on singing interactions among males may allow females to make such relative assessments. We used interactive playback to instigate singing contests with male great tits during the peak fertile period of their mate in an attempt to alter females ‘assessment of mates’ quality relative to neighbours (potential extra–pair partners). We escalated a contest to one male (by overlapping his songs) and then subsequently de–escalated a contest (by alternating) to a neighbour. Intrusions onto neighbouring territories by females mated to either treatment male were then monitored. Females mated to escalation treatment males were more likely to intrude following playbacks than females mated to de–escalation treatment males. Although the absolute song output of males did not differ between treatments, males produced more song relative to playback in de–escalation treatments and relative song output was positively correlated with female intrusions. Therefore, female great tits eavesdrop on singing interactions and change their visitation rates to neighbouring territories according to their mate's singing performance relative to neighbours.