Animal behavior

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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An RFID based smart feeder for hummingbirds
We present an interdisciplinary effort to record feeding behaviors and control the diet of a hummingbird species (Phaethornis …
Vicente Ibarra, Marcelo Araya-Salas, Yu-ping Ping Tang, Charlie Park, Anthony Hyde, T. F. Timothy F. Wright, Wei Tang
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Open-ended song learning in a hummingbird
Vocal learning in birds is typically restricted to a sensitive period early in life, with the few exceptions reported in songbirds and …
Marcelo Araya-Salas, T. Wright
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Variación geográfica y posibles mecanismos de evolución cultural en Microcerculus philomela
Investigué la variación del canto en una escala microgeográfica en Microcerculus philomela. Esta ave tiene un repertorio de canto único …
Marcelo Araya-Salas
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Collared Forest-Falcon (Micrastur semitorquatus) Preying on Chestnut-mandibled Toucan (Ramphastos swainsonii) in Costa Rica
Predator-prey interactions occur regularly in nature; however, predation events are difficult to observe in the canopy of tropical rain …
J. Edgardo Arévalo, Marcelo Araya-Salas
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Is birdsong music? Evaluating harmonic intervals in songs of a Neotropical songbird
Signals in animal communication are commonly judged as aesthetically appealing by human standards. This is particularly common for …
Marcelo Araya-Salas
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