HIGH FREQUENCY AUDIBLE CALLS IN NORTHERN BIRCH MICE SICISTA BETULINA IN RESPONSE TO HANDLING: EFFECTS OF INDIVIDUALITY, SEX AND BODY MASS ON THE ACOUSTICS

High frequency audible calls in northern birch mice Sicista betulina in response to handling: effects of individuality, sex and body mass on the acoustics

Abstract Objectives This is the first study of the sonic and ultrasonic vocalization in a Dipodidae rodent.For the small-sized quadrupedal northern birch mouse Sicista betulina, phylogenetically related to the bipedal jerboas (Dipodidae), we report null results for ultrasonic vocalization and investigate the acoustic cues to individual identity, se

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