Acoustic characteristics of courtship and agonistic vocalizations in Przwewalskii's wild horse and in domestic horse

摘要: Abstract For closely related species living in similar habitats, differences the acoustic morphology of vocalizations could play a role mate recognition as well provide insight into evolutionary divergence between species. Przwewalski's horses ( Equus Przwewalskii ) and Mongolian domestic callabus are sometimes found cohabiting same environment during mating season. As such, we examined hypothesis that interspecies reflected produced by two We analyzed structure courtship nickers agonistic squeals stallions. Our analyses indicated stallions were significantly higher source-related parameters frequency maximal energy than those In addition to differences, context-related stallion vocalizations. Courtship lower fundamental frequencies squeals. findings suggest reflect underlying motivational states horses. Interspecies however, restricted From an standpoint, lack factors influence evolution calls whereas indicate different modulate calls.