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

LEON, EVELINA J.; LORENZON, RODRIGO E.; OLGUÍN, PAMELA; REGNER, SILVIA; ATTADEMO, ANDRÉS M.; BELTZER, ADOLFO H.; PELTZER, PAOLA M.

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS.

ACAD BRASILEIRA DE CIENCIAS

Año: 2022

0001-3765

Acoustic communication plays a key role in the life of birds and it is useful in phylogeneticand evolutionary investigations. The aim of this study was to describe the structure andfunction of Polioptila dumicola´s call repertoire in riparian environments from theMid-eastern of Argentina. Calls of P. dumicola males (N=644) were recorded at field duringthe pairs nuptial interactions; nests exploration and prior to the male capture. Then, specificfunction was assigned to different calls using standardized methods of acoustic classificationand behavioral observations. Twelve different types of calls were classified. Alert and call tofemale were the most frequent calls and they represented 12.04% and 10.24% of recordings.Anguish call was also recorded in P. dumicola. These are the first results regarding to thecalls and repertoire of P. dumicola. These data could be used for new studies onenvironmental selection pressures and for conservation of this species and its habitats.