Animal communication

The evolution of sexually dimorphic traits in ecological gradients: an interplay between natural and sexual selection in hummingbirds
Traits that exhibit differences between the sexes have been of special interest in the study of phenotypic evolution. Classic …
Diego F. Beltrán, Marcelo Araya-Salas, Juan L. Parra, F. Gary Stiles, Alejandro Rico-Guevara
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The evolution of sexually dimorphic traits in ecological gradients: an interplay between natural and sexual selection in hummingbirds
Variación de la estructura del canto del Gorrión de Collar Rufo (Zonotrichia capensis) a lo largo de un gradiente urbano en el suroeste del Perú
Song plays a crucial role in bird ecology and behavior, and understanding the processes that alter the production and transmission of …
Rafael Montes-Rivas, Víctor Gamarra-Toledo, Evaristo López Tejeda, Marcelo Araya-Salas
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A machine learning approach for classifying and quantifying acoustic diversity
Assessing diversity of discretely varying behaviour is a classical ethological problem. In particular, the challenge of calculating an …
Sara C. Keen, Karan J. Odom, Michael S. Webster, Gregory M. Kohn, Timothy F. Wright, Marcelo Araya-Salas
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Individual signatures outweigh social group identity in contact calls of a communally nesting parrot
Despite longstanding interest in the evolutionary origins and maintenance of vocal learning, we know relatively little about how social …
Grace Smith-Vidaurre, Marcelo Araya-Salas, Timothy F Wright
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Social group signatures in hummingbird displays provide evidence of co-occurrence of vocal and visual learning
Vocal learning, in which animals modify their vocalizations based on social experience, has evolved in several lineages of mammals and …
Marcelo Araya-Salas, Grace Smith-Vidaurre, Daniel J Mennill, James Cahill, Paulina L. Gonzalez-Gomez, Timothy F Wright
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Spatial memory is as important as weapon and body size for territorial ownership in a lekking hummingbird
Advanced cognitive abilities have long been hypothesized to be important in mating. Yet, most work on sexual selection has focused on …
Marcelo Araya-Salas, Paulina Gonzalez-Gomez, Katarzyna Wojczulanis-Jakubas, Virgilio López, Virgilio López III, Timothy F. Wright
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To overlap or not to overlap: context-dependent coordinated singing in lekking long-billed hermits
When using signals to attract mates or defend resources, animals often overlap the voices of other in-dividuals in close proximity. In …
Marcelo Araya-Salas, Katarzyna Wojczulanis-Jakubas, Emily M Phillips, Daniel J Mennill, Timothy F Wright
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How acoustic signals scale with individual body size: common trends across diverse taxa
We use allometric analysis to explore how acoustic signals scale on individual body size and to test hypotheses about the factors …
R. L. Rodriguez, Marcelo Araya-Salas, D. a. Gray, M. S. Reichert, L. B. Symes, M. R. Wilkins, R. J. Safran, G. Hobel
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Open-ended song learning in a hummingbird
Vocal learning in birds is typically restricted to a sensitive period early inlife, with the few exceptions reported in songbirds and …
Marcelo Araya-Salas, T. Wright
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Is birdsong music?
The nightingale, the lark ascending; the cuckoo, the dawn chorus; since ancient times man has found beauty in birdsong. It appeals to …
Marcelo Araya-Salas
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