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Different Messages are Transmitted by Individual Duet Contributions and Complete Duets in a Species with Highly Overlapped Duets
(2018)
Background: Duet function hypotheses have been mostly studied in bird species that produce duets with male and female solo songs. However, in order to understand if patterns of duet function are similar across all duetting ...
The biogeographic and evolutionary history of an endemic clade of Middle American sparrows: Melozone and Aimophila (Aves: Passerellidae)
(2017)
The large number of endemic species in Middle America is frequently attributed to the interplay of geographical barriers and historical climatic changes in the region. This process promotes genetic divergence between ...
The differences in transmission properties of two bird calls show relation to their specific functions
(2016)
When vocalizations transmit throughout the environment, attenuation and degradation may change the information of the signal; the loss of information is related to changes in both frequency and duration of vocalizations. ...
Efecto del aislamiento urbano espacial y temporal en la diversidad genética, características acústicas y morfológicas de Melozone Leucotis (Aves: Passerellidae)
(2023)
La urbanización genera alteraciones en los ecosistemas, incluyendo la fragmentación de los hábitats naturales, lo que produce el aislamiento de poblaciones de una misma especie. Como consecuencia, se espera que el flujo ...
Unusual records of waterbirds in Costa Rica: possible connection to El Niño 2015-2016
(2016)
These records were reported during the winter migrations in
2015 and 2016; five of the six species were apparently migrating
from their reproductive sites in North America to their wintering
grounds on the Pacific coast ...
Effect of urbanization on the avifauna in a tropica metropolitan area
(2011)
The rapid and unplanned expansion of urban areas is a common pattern in neotropical developing countries. Urbanization has eliminated or drastically altered large areas of natural habitats used by the rich neotropical ...
Patrones de co-ocurrencia, elección de hábitat y comunicación heteroespecífica dentro de bandadas mixtas de aves
(2022-07-27)
Las bandadas mixtas son uno de los sistemas más extendidos e interactivamente dinámicos en la Tierra, pero los factores que median su cohesión aún no se comprenden del todo. Su estudio a través de un enfoque evolutivo ...
Neotropical Birds Respond Innately to Unfamiliar Acoustic Signals
Las aves neotropicales responden de manera innata a señales acústicas desconocidas
(2022)
Many animals respond to heterospecific signals that indicate the presence of food or predators. Although the benefits of responding are clear, the behavioral and cognitive mechanisms underlying responses are not. Whether ...
Variación mensual y anual de la riqueza y abundancia de aves en un mosaico agrícola periurbano tropical
Annual and monthly variation on bird species richness and abundance inside a tropical semiurban agricultural landscape
(2019)
Species richness inside agricultural landscape has been studied intensively and according to the type of landscape structure. However, the species phenology inside the mostly agricultural landscape is poorly understood. ...
Urbanization has opposite effects on the territory size of two passerine birds
(2020-04-28)
Background: Urban expansion has been identified as one of the leading drivers of biodiversity change or loss. For birds, urbanization is specifically related to survival, breeding success, and territory size. Understanding ...