Eliciting conditioned taste aversion in lizards:Live toxic prey are more effective than scent and taste cues alone

作     者：Georgia WARD-FEAR Jai THOMAS Jonathan K.WEBB David J.PEARSON Richard SHINE 

作者机构：School of Life and Environmental SciencesUniversity of SydneySydneyNew South WalesAustralia School of Veterinary and Life SciencesMurdoch UniversityWestern AustraliaAustralia School of Life SciencesUniversity of Technology SydneyBroadwayNew South WalesAustralia Western Australian Department of Parks and WildlifeWanerooWestern AustraliaAustralia 

出 版 物：《Integrative Zoology》 (整合动物学（英文版）)

年 卷 期：2017年第12卷第2期

页      面：112-120页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：funded by the Australian Research Council. Logistical assistance was provided by the Western Australian Department of Parks and Wildlife (especially by Corrin Everett)  Bill Stewart and Craig Mills 

主　　题：conditioned taste aversion invasive species Rhinella marina Varanus conservation tropical Australia 

摘      要：Conditioned taste aversion(CTA)is an adaptive learning mechanism whereby a consumer associates the taste of a certain food with symptoms caused by a toxic substance,and thereafter avoids eating that type of ***,wildlife researchers have employed CTA to discourage native fauna from ingesting toxic cane toads(Rhinella marina),a species that is invading tropical *** this paper,we compare the results of 2 sets of CTA trials on large varanid lizards(“goannas,Varanus panoptes).One set of trials(described in this paper)exposed recently-captured lizards to sausages made from cane toad flesh,laced with a nausea-inducing chemical(lithium chloride)to reinforce the aversion *** other trials(in a recently-published paper,reviewed herein)exposed free-ranging lizards to live juvenile cane *** effectiveness of the training was judged by how long a lizard survived in the wild before it was killed(fatally poisoned)by a cane *** stimuli elicited rapid aversion to live toads,but the CTA response did not enhance survival rates of the sausage-trained goannas after they were released into the *** contrast,the goannas exposed to live juvenile toads exhibited higher long-term survival rates than did untrained *** results suggest that although it is relatively easy to elicit short-term aversion to toad cues in goannas,a biologically realistic stimulus(live toads,encountered by free-ranging predators)is most effective at buffering these reptiles from the impact of invasive toxic prey.