@article {58410,
	title = {Defining the multidimensional phenotype: new opportunities to integrate the behavioral ecology and behavioral neuroscience of vocal learning},
	year = {2021},
	abstract = {<p>Vocal learning has evolved independently in several lineages. This complex cognitive trait is commonly treated as binary: species either possess or lack it. This view has been a useful starting place to examine the origins of vocal learning, but is also incomplete and potentially misleading, as specific components of the vocal learning program \&ndash; such as the timing, extent and nature of what is learned \&ndash; vary widely among species. In our review we revive an idea first proposed by Beecher and Brenowitz (2005) by describing six dimensions of vocal learning: (1) which vocalizations are learned, (2) how much is learned, (3) when it is learned, (4) who it is learned from, (5) what is the extent of the internal template, and (6) how is the template integrated with social learning and innovation. We then highlight key examples of functional and mechanistic work on each dimension, largely from avian taxa, and discuss how a multi-dimensional framework can accelerate our understanding of why vocal learning has evolved, and how brains became capable of this important behaviour.</p>
},
	keywords = {behavioral ecology, behavioral neuroscience, brain evolution, call, Cognition, comparative method, integrative biology, neurogenetics, song, trait evolution, vocal production learning},
	doi = {10.1016/j.neubiorev.2021.02.022},
	author = {Wright, Timothy F. and Derryberry, Elizabeth P.}
}
@article {53387,
	title = {Neotropical frogs and mating songs: The evolution of advertisement calls in glassfrogs},
	journal = {Journal of Evolutionary Biology},
	year = {2018},
	month = {Mar-11-2020},
	abstract = {<p>Anurans emit advertisement calls with the purpose of attracting mates and repelling conspecific competitors. The evolution of call traits is expected to be associated with the evolution of anatomical and behavioral traits due to the physics of call emission and transmission. Additionally, since vocalizing might imply a trade-off with investment in parental care, the evolution of calls is expected to trade-off with parental care. Here, we investigated the association between body size, calling site, parental care and call properties (call duration, number of notes, peak frequency, frequency bandwidth and call structure) of the advertisement calls of glassfrogs (Centrolenidae)\&mdash;a family of Neotropical, leaf-dwelling anurans\&mdash;using phylogenetic comparative methods. We also explored the tempo and mode of evolution of these traits and compared them with those of three morphological traits associated with body size, locomotion and feeding. We generated and compiled acoustic data for 72 glassfrog species (46\% of total species richness), including representatives of all genera. We found that almost all acoustic traits have significant, but generally modest, phylogenetic signal. Peak frequency of calls is significantly associated with body-size, while call structure is significantly associated with calling site and paternal care. Thus, the evolution of body size and calling site could constrain call evolution. The estimated disparity of acoustic traits was larger than that of morphological traits and the peak in disparity of acoustic traits generally occurred later in the evolution of glassfrogs, indicating a historically recent outset of the acoustic divergence in this clade.</p>
},
	keywords = {acoustic communication, amphibians, comparative method, Neotropics, phenotypic disparity},
	doi = {10.1111/jeb.13406},
	url = {http://doi.wiley.com/10.1111/jeb.13406},
	author = {Escalona S, Mois{\'e}s D. and Ivo Sim{\~o}es, Pedro and Castroviejo-Fisher, Santiago}
}
