Territorial songs indicate male quality in the sac-winged bat Saccopteryx bilineata (Chiroptera, Emballonuridae)
Territorial songs indicate male quality in the sac-winged bat Saccopteryx bilineata (Chiroptera, Emballonuridae)
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DOI：
10.1093/beheco/arl013
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发表时间：
2006-09-01
影响因子：
2.4
通讯作者：
Mayer, Frieder
中科院分区：
文献类型：
--
作者：
Behr, Oliver;von Helversen, Otto;Mayer, Frieder
许多动物物种的领地防御涉及通过声音信号来宣传领地持有者的质量。在囊翅蝙蝠 Saccopteryx bilineata 中，雄性在早上和晚上重新占据日间栖息地时会进行领地反鸣，然后再离开栖息地过夜。雌性主要栖息在雄性领地内，领地拥有者比非领地雄性在繁殖上更成功。在雄性 S. bilineata 的领地歌曲中，我们区分了 6 个音节类型并参数化了它们的声学特性。对 11 个微卫星位点的分析允许将幼体分配给它们的父母。当雄性每天发出更多的领地歌曲以及当它们的长嗡嗡声音节的基本谐波的最终频率较低时，它们的繁殖成功率更高。由于音节开始时基频的脉动，长嗡嗡声具有刺耳的质量，并且在大多数领土歌曲中的所有音节类型中具有最高的声压级。因此，领地歌曲，尤其是长的流行音节，很可能会宣传领地持有者的品质和竞争能力。
Defense of territories in many animal species involves the advertisement of territory holder quality by acoustic signaling. In the sac-winged bat Saccopteryx bilineata, males engage in territorial countersinging when reoccupying their day-roost territories in the morning and in the evening before abandoning the roost for the night. Females roost mainly in male territories, and territory holders are reproductively more successful than nonterritorial males. In territorial songs of male S. bilineata, we distinguished 6 syllable types and parameterized their acoustic properties. The analysis of 11 microsatellite loci allowed assignments of juveniles to their parents. Males had a higher reproductive success both when they uttered more territorial songs per day and when their long buzz syllables had a lower end frequency of the fundamental harmonic. Long buzzes had a harsh quality due to a pulsation of the fundamental frequency at the syllable onset and also had the highest sound pressure level of all syllable types in most territorial songs. Territorial songs and especially long buzz syllables are thus likely to advertise territory holder quality and competitive ability.