{"title":"Spontaneous Immobility of the Japanese Lacertid Lizard, Takydromus tachydromoides","authors":"A. Mori","doi":"10.5358/HSJ1972.14.1_1","DOIUrl":null,"url":null,"abstract":"Frequencies of movement, as an index of propensity for immobility, of Takydromus tachydromoides were measured in the encounters with a potential predator Elaphe quadrivirgata (Session A) or a sympatric non-predator Eumeces latiscutatus (Session B), or in the absence of other animals (Session C). Frequency of movement in Session A was significantly lower than in Sessions B and C. In Session B, T. tachydromoides moved significantly less frequently during the first 10min than dur- ing the latter 10min. The lizards previously exposed to E. quadrivirgata reduced their movements in the subsequent Session B with significantly high frequency when com- pared with animals without such experience. It is suggested that immobility of T. tachydromoides is an adaptive antipredator behavior to avoid detection by a visually","PeriodicalId":348021,"journal":{"name":"Japanese journal of herpetology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Japanese journal of herpetology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5358/HSJ1972.14.1_1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
Frequencies of movement, as an index of propensity for immobility, of Takydromus tachydromoides were measured in the encounters with a potential predator Elaphe quadrivirgata (Session A) or a sympatric non-predator Eumeces latiscutatus (Session B), or in the absence of other animals (Session C). Frequency of movement in Session A was significantly lower than in Sessions B and C. In Session B, T. tachydromoides moved significantly less frequently during the first 10min than dur- ing the latter 10min. The lizards previously exposed to E. quadrivirgata reduced their movements in the subsequent Session B with significantly high frequency when com- pared with animals without such experience. It is suggested that immobility of T. tachydromoides is an adaptive antipredator behavior to avoid detection by a visually