Predator odour recognition and avoidance in a songbird
Predator odour recognition and avoidance in a songbird
复制标题
DOI：
10.1111/j.1365-2435.2007.01361.x
复制
发表时间：
2008-04-01
影响因子：
5.2
通讯作者：
Sanz, J. J.
中科院分区：
文献类型：
--
作者：
Amo, L.;Galvan, I.;Sanz, J. J.
1.虽然检测化学信号的能力在许多生物体中广泛存在，但令人惊讶的是，人们对化学通讯在鸟类生活史中的作用知之甚少。如今，越来越多的证据表明，鸟类可以在多种情况下使用嗅觉。然而，我们仍然不知道鸟类嗅觉在生存的最重要的决定因素之一，捕食者检测中的作用。蓝山雀，蓝山雀，暴露于化学线索：（i）鼬（捕食者），（ii）鹌鹑（有气味的控制）;或（iii）水（无气味的控制）内的巢箱，他们提供8天大的雏鸟。我们发现，蓝山雀能够检测到的化学线索，并表现出antipredatory行为，以科普捕食的风险。当发现捕食者气味的次数多于对照气味的次数时，鸟类推迟进入巢箱，并栖息在巢箱的洞上，拒绝进入巢箱。此外，鸟类在喂食雏鸟时，会减少在具有捕食者气味的巢箱中停留的时间。鸟类利用捕食者的化学线索来准确评估捕食的能力的发现可能有助于理解迄今为止被忽视的鸟类生活史的许多方面。
1. Although the ability to detect chemical cues is widespread in many organisms, it is surprising how little is known about the role of chemical communication in avian life histories. Nowadays, growing evidence suggests that birds can use olfaction in several contexts. However, we still do not know the role of bird olfaction in one of the most important determinants of survival, predator detection.2. Blue tits, Cyanistes caeruleus L., were exposed to chemical cues of: (i) mustelid (predator), (ii) quail (odorous control); or (iii) water (odourless control) inside the nest-box where they were provisioning 8-day-old nestlings.3. We show that blue tits were able to detect the chemical cues and showed antipredatory behaviours to cope with the risk of predation. Birds delayed their entry to the nest-box, and they perched on the hole of the nest-box and refused to enter more times when they found predator scent than control scents inside the nest-box. In addition, birds decreased the time spent inside the predator-scented nest-box when feeding nestlings.4. The discovery of the ability of birds to use chemical cues of predators to accurately assess predation may help to understand many aspects of bird life histories that have been neglected until now.