title: Whistle comparison of four delphinid species in Southeastern Brazil.
abstract: The present study evaluates variations in frequency and duration parameters of whistles of four dolphin species (Sotalia guianensis, Steno bredanensis, Stenella frontalis, and Tursiops truncatus), recorded in the Rio de Janeiro State Coast, Southeastern Brazil. A total of 487 whistles were analyzed. Acoustic parameters of the whistles were classified to species by discriminant function analysis. Overall classification score was 72.5%, with the highest classification score obtained for whistles of S. bredanensis and the lowest obtained for S. frontalis. Most differences were among S. bredanensis and S. guianensis, species that did not have their repertoires compared in other studies.
authors.affiliation: Laboratório de Mamíferos Aquáticos e Bioindicadores Prof Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil isabelaseabra.lima@gmail.com; luciana_uff@hotmail.com; lis.bitt@gmail.com; tbisi@yahoo.com.br.
authors.forename: Isabela M S
authors.initials: IM
authors.lastname: Lima
authors.affiliation: Laboratório de Mamíferos Aquáticos e Bioindicadores Prof Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil isabelaseabra.lima@gmail.com; luciana_uff@hotmail.com; lis.bitt@gmail.com; tbisi@yahoo.com.br.
authors.forename: Luciana G
authors.initials: LG
authors.lastname: Andrade
authors.affiliation: Laboratório de Mamíferos Aquáticos e Bioindicadores Prof Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil isabelaseabra.lima@gmail.com; luciana_uff@hotmail.com; lis.bitt@gmail.com; tbisi@yahoo.com.br.
authors.forename: Lis
authors.initials: L
authors.lastname: Bittencourt
authors.affiliation: Laboratório de Mamíferos Aquáticos e Bioindicadores Prof Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil isabelaseabra.lima@gmail.com; luciana_uff@hotmail.com; lis.bitt@gmail.com; tbisi@yahoo.com.br.
authors.forename: Tatiana L
authors.initials: TL
authors.lastname: Bisi
authors.affiliation: Instituto Boto-cinza, Rua Santa Terezinha 531, Rio de Janeiro 23860-000, Rio de Janeiro, Brazil flachleo@institutobotocinza.org.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Flach
authors.affiliation: Laboratório de Mamíferos Aquáticos e Bioindicadores Prof Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil joselailson@gmail.com; azevedo.alex@uol.com.br.
authors.forename: José
authors.initials: J
authors.lastname: Lailson-Brito
authors.affiliation: Laboratório de Mamíferos Aquáticos e Bioindicadores Prof Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil joselailson@gmail.com; azevedo.alex@uol.com.br.
authors.forename: Alexandre F
authors.initials: AF
authors.lastname: Azevedo
mesh_terms: D000162:Acoustics; D000818:Animals; D050681:Bottle-Nosed Dolphin / Q000145:classification / Q000502:physiology; D001938:Brazil; D016002:Discriminant Analysis; D004289:Dolphins / Q000145:classification / Q000502:physiology*; D005583:Fourier Analysis; D013045:Species Specificity; D050706:Stenella / Q000145:classification / Q000502:physiology; D014828:Vocalization, Animal / Q000145:classification