Territoriality and the significance of calling in the Lanyu Scops Owl Otus elegans botelensis
Territoriality and the significance of calling in the Lanyu Scops Owl Otus elegans botelensis
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兰屿角鸮Otus elegans botelensis 的领地性及召唤意义
DOI：
10.1111/j.1474-919x.2000.tb04869.x
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发表时间：
2008
期刊：
影响因子：
2.1
通讯作者：
L. Severinghaus
中科院分区：
文献类型：
--
作者：
L. Severinghaus
在繁殖季节和非繁殖季节，兰屿猫头鹰Otus elegans botelensis的领土重叠。无线电遥测结果显示，相邻的猫头鹰并不同时使用它们领土的公共区域。频繁的对唱显然让个人避免了与邻居的潜在代价高昂的遭遇。非领地猫头鹰可以在被占领土上觅食和休息。使用诱饵和回放的实验表明，如果猫头鹰保持沉默，入侵的猫头鹰在任何季节都可以在核心或外围地区容忍，而呼叫入侵者几乎总是煽动威胁或攻击，即使在秋天也是如此。容忍沉默的猫头鹰并不是交配或筑巢地点的竞争对手，这似乎是一种节约能源的地域策略。领域性是由特定物种的行为模式维持的空间系统。领土防御的回报往往是更好的生存或更高的繁殖成功率。因此，物种的属地性反映了对该物种的重要环境和社会限制。有利于领土行为的外部条件模型通常考虑土地的质量、丰度和分布
Territories of Lanyu Scops Owls Otus elegans botelensis overlap in both breeding and non-breeding seasons. Results of radiotelemetry showed that neighbouring owls do not use the shared areas of their territories at the same time. Frequent countersinging apparently permitted individuals to avoid potentially costly encounters with neighbours. Nonterritorial owls can forage and rest in occupied territories. Experiments using decoys and playbacks showed that intruding owls were tolerated within either core or peripheral territories in all seasons if they remained silent, while calling intruders almost always incited threats or attacks even in autumn. Tolerating silent owls that are not competitors for mates or for nest sites appears to be an energy-saving territorial strategy. Territoriality is a spacing system maintained by the behavioural patterns of a given species. The reward for territorial defence is frequently better survival or higher reproductive success. The territoriality of a species thus reflects important environmental and social constraints on the species. Models of the external conditions that favour territorial behaviour usually consider the quality, abundance and distribution of