01864nas a2200193   4500008004100000245006500041210006400106520117900170653004101349653002101390653001901411653002201430100002201452700001601474700002201490700001601512700001601528856012601544       2004                        eng d00aStudying the Song Development Process: Rationale and Methods0 aStudying the Song Development Process Rationale and Methods3 a<p>Current technology makes it possible to measure song development continuously throughout a vocal ontogeny. Here we briefly review some of the problems involved and describe experimental and analytic methods for automatic tracing of vocal changes. These techniques make it possible to characterize the specific methods the bird uses to imitate sounds: an automated song recognition procedure allows continuous song recording, followed by automated sound analysis that partition the song to syllables, extract acoustic features of each syllable, and summarize the entire song development process over time into a single database. The entire song development is then presentable in the form of images or movie clips. These Dynamic Vocal Development (DVD) maps show how each syllable type emerges, and how the bird manipulates syllable features to eventually approximate the model song. Most of the experimental and analytic methods described here have been organized into a software package, which also allows combined neural and sound recording to monitor changes in brain activity as vocal learning occurs. The software is available at http://ofer.sci.ccny.cuny.edu.</p>
10aDynamic Vocal Development (DVD) maps10asong development10asound analysis10asound spectrogram1 aTCHERNICHOVSKI, O1 aLINTS, T, J1 aDERÉGNAUCOURT, S1 aCIMENSER, A1 aMITRA, P, P  uhttp://doi.wiley.com/10.1196/annals.1298.031https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1196%2Fannals.1298.03102464nas a2200229   4500008004100000245020100041210006900242520161600311653001701927653001801944653002201962653003401984653002802018653001902046653001602065653002202081653001502103100003202118700002302150700002002173856004102193       2019                        eng d00aVariation in Bioacoustic Characteristics in Eleutherodactylus coqui Thomas, 1966 and Eleutherodactylus antillensis (Reinhardt and Lutken, 1863) (Anura: Eleutherodactylidae) in the Puerto Rico Bank0 aVariation in Bioacoustic Characteristics in Eleutherodactylus co3 a<p>Bioacoustics is an interdisciplinary science that combines biology, acoustics, and mathematics. This discipline can be used to study population ecology and behavior. Furthermore, we can use this tool to assess a population and suggest if a species of interest may be in a transitional state of becoming a new species by allopatric speciation. Amphibians communicate via sound and the environment has a key role in metabolism and sound dispersion. By analyzing temporal and spectral properties of acoustical communication in anurans, we can understand better how these animals are evolving to cope with their ever-changing environment. We studied the variation in acoustic parameters among five populations each of the red-eye coqui, Eleutherodactylus antillensis (Reinhardt and Lutken, 1863) and the common coqui, E. coqui Thomas, 1966 across the Puerto Rico Bank. These species are changing their vocalizations. Some populations have higher sound frequencies than other conspecific populations; other nocturnal species have populations with different temporal patterns of sound production. We found strong variation among the five populations examined for each species. In, E. antillensis, the size of the organism relates to temporal variation in sound production (i.e., inter-note interval and total call duration) and did not relate to spectral differentiation. In E. coqui, the population living at highest elevation above sea level assessed had a spectral footprint no other population shares, probably due to geographic isolation from other conspecific populations that live in lower elevations.</p>
10abioacoustics10acommunication10aEleutherodactylus10aEleutherodactylus antillensis10aEleutherodactylus coqui10amicroevolution10aPuerto Rico10asound spectrogram10aspeciation1 aRíos-Franceschi, Alejandro1 aJoglar, Rafael, L.1 aThomas, Richard  uhttps://bio.acousti.ca/ja/node/57997