Abstract
Abstract Recent studies have revealed that in some ground squirrel species alarm calling behavior is most prevalent among individuals with nearby genetic relatives. A playback experiment was conducted to determine if the predator-elicited vocalization of the thirteen-lined ground squirrel, Spermophilus tridecemlineatus, is capable of evoking escape or watchful behavior in conspecifics. The responses of juveniles and adults to playback of three of their vocalizations, the trill, the peep, and the squeal, and to silent control trials, were observed. The results are discussed in terms of the proposed function of the alarm calling behavior of the species. Zusammenfassung Junge und erwachsene Streifenziesel (Spermophilus tridecemlineatus) reagierten auf arteigene Alarmrufe signifikant häufiger mit Männchen machen und Laufen zum Baueingang als auf in sozialen Beziehungen benutzte Laute, und sie unterbrachen laufende Aktivitäten häufiger. Diese Ergebnisse stimmen mit der Hypothese überein, daß der durch Räuber ausgelöste Ruf als Warnung wirkt.
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