The effect of pyrazine odor on avoidance learning and memory in wild robins Erithacus rubecula

作     者：Emma C. SIDDALL Nicola M. MARPLES 

作者机构：School of Natural Sciences Trinity College Dublin Dublin 2 Ireland 

出 版 物：《Current Zoology》 (动物学报（英文版）)

年 卷 期：2011年第57卷第2期

页      面：208-214页

核心收录：

学科分类：0710[理学-生物学] 090603[农学-临床兽医学] 12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 0905[农学-畜牧学] 081104[工学-模式识别与智能系统] 08[工学] 0906[农学-兽医学] 09[农学] 0835[工学-软件工程] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Trinity College Postgraduate Award and the Zoology Department Trinity College Dublin while this research was conducted 

主　　题：野生鸟类 学习率 记忆性 气味 吡嗪 捕食昆虫 多式联运 显示 

摘      要：Toxic insects advertise their defended state to potential predators using warning displays. Frequently these displays use cues through more than one sensory modality, and combine color, smell and sound to produce a multimodal warning display. Signalling through more than one sensory pathway may enhance the rate of avoidance learning, and the memorability of the learned avoidance. A common insect warning odor, pyrazine, has previously been shown to increase the rate of learned avoidance of unpalatable yellow prey by domestic chicks (Gallus gallus domesticus), and the odor also improved memory of this learned avoidance. However, to date no research has examined this response to pyrazine odor using wild birds under natural conditions. This study used wild robins (Erithacus rubecula) to investigate whether wild birds avoided yellow baits that smelled of pyrazine more strongly than those presented with no odor. The results provide some evidence that pyrazine odor does increase the level of protection an aposematic insect gains from a wild avian predator, but that the effect of pyrazine on learned avoidance was much weaker than was found with domestic chicks.