Structure and function calls of Masked Gnatcatcher Polioptila dumicola in the Mid-eastern of Argentina

LEÓN, E.J.; LORENZÓN, R.E.; OLGUIN, P.; REGNER, S.; ATTADEMO, A.; BELTZER, A. H.; PELTZER, P.

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS.

ACAD BRASILEIRA DE CIENCIAS

Lugar: Rio de Janeiro; Año: 2022 vol. 94

0001-3765

Acoustic communication plays a key role in the life of birds and it is useful in phylogenetic and evolutionary investigations. The aim of this study was to describe the structure and function of Polioptila dumicola´s call repertoire in riparian environments from the Mid-eastern of Argentina. Calls of P. dumicola males (N=644) were recorded at field during pair nuptial interactions, nests exploration and prior to the male capture. A specific function was assigned to different calls using standardized methods of acoustic classification and behavioral observations. Twelve different call types were classified. Alert and call to female were the most frequent calls and they represented 12.04% and 10.24% of records, respectively. Anguish call was also recorded in P. dumicola. These are the first results regarding to the calls and repertoire of P. dumicola. These data could be used for new studies on environmental selection pressures and for conservation of this species and its habitats.