Behavioral ecology

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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Neotropical wrens learn new duet rules as adults
Although song development in songbirds has been much studied as an analogue of language development in humans, the development of vocal …
K. D. Rivera-Cáceres, E. Quirós-Guerrero, Marcelo Araya-Salas, W. A. Searcy
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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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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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