“…As a consequence, vocalizations of Siberian wapiti are much more similar to those of American wapiti than to European red deer (Tembrock, 1965;Nikolski & Wallschlager, 1983;Volodin et al, 2013). European red deer stags produce low-pitched roars with fundamental frequency (f0) ranges from 40 to 380 Hz: Corsican C. e. corsicanus Erxleben, 1777 (mean f0 = 40 Hz: Kidjo et al, 2008); Scottish C. e. scoticus Lonnbert, 1906 (mean f0 = 107 174 Hz: Long et al, 1998;Reby & McComb, 2003); Iberian C. e. hispanicus Hilzheimer, 1909 (mean f0 = 180 186 Hz: Frey et al, 2012;Passilongo et al, 2013); C. e. hippelaphus Erxleben, 1777 (maximum f0 = 273 Hz: Bocci et al, 2013). In contrast, the available data for American and Siberian wapiti suggest produce high-pitched bugles with an f0 above 1000 Hz: Siberian wapiti from Altai C. e. sibiricus (Nikol skii, 2011); Canadian wapiti C. e. canadensis (Struhsaker, 1968); Roosevelt wapiti C. e. roosevelti Merrian, 1897 (Bowyer & Kitchen, 1987), Tule wapiti C. e. nannodes Merriam, 1905(Volodin et al, 2013 and Rocky Mountain wapiti C. e. nelsoni Bailey, 1935 (Feighny et al, 2006;Frey & Riede, 2013).…”