title: Acoustic characterization of ultrasonic vocalizations by a nocturnal primate Tarsius syrichta.
abstract: This preliminary study characterizes the ultrasonic vocalizations produced by Philippine tarsiers, Tarsius syrichta. Data were collected at the Philippine Tarsier Foundation Sanctuary in Corella, Bohol, Philippines, from July through October 2010. Recordings were made on a Wildlife Acoustics Ultrasonic Song Meter 2 BAT from 29 wild, free-living adult resident T. syrichta (23 females and six males). A total of 10,309 USVs were recorded. These vocalizations fell into three main categories: chirps, twitters, and whistles. Chirps were the most frequent, followed by twitters and whistles. Whereas chirps and twitters were emitted by both male and female Philippine tarsiers, whistles were only emitted by adult males. Given that vocalizations reported in this study were exclusively recorded during capture and handling, it is very likely that these vocalizations function as distress calls. However, as the long whistle was only given by adult males who were captured at the same time as the female or the group's infant, the function of the long whistle might be slightly different than the function of the other relatively lower-frequency USVs.
authors.affiliation: Department of Anthropology, Texas A&M University, College Station, TX 77843-4352, USA. gursky@tamu.edu
authors.forename: Sharon
authors.initials: S
authors.lastname: Gursky-Doyen
mesh_terms: D000162:Acoustics; D000818:Animals; D005260:Female; D008297:Male; D010679:Philippines; D012621:Seasons; D012727:Sex Characteristics; D016699:Tarsiidae / Q000502:physiology*; D014828:Vocalization, Animal / Q000145:classification
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