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Local predation pressure predicts the strength of mobbing responses in tropical birds
Many birds join cooperative mobbing aggregations and collectively harass predators. Individuals participating in these ephemeral associations benefit by deterring the predator, but also incurExpand
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BREEDING BIOLOGY OF WHITE-EARED GROUND-SPARROWS (MELOZONE LEUCOTIS), WITH A DESCRIPTION OF A NEW NEST TYPE
Resumen. – Biologia reproductiva del Cuatro-ojos de Cabeza Negra (Melozone leucotis), con la descripcion de un nuevo tipo de nido. – Proveemos la primera descripcion detallada de la biologiaExpand
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Vocal behaviour of White-eared Ground-sparrows (Melozone leucotis) during the breeding season: repertoires, diel variation, behavioural contexts, and individual distinctiveness
There are relatively few quantitative descriptive studies of the vocalisations and vocal behaviour of tropical bird species, in spite of the tropic’s rich avian biodiversity and the extensive varietyExpand
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Individual Distinctiveness in the Fine Structural Features and Repertoire Characteristics of the Songs of White-eared Ground-sparrows
Communication between social animals is often more effective when signals facilitate individual recognition. Two critical requirements for individual recognition are the occurrence of characteristicsExpand
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Transmission characteristics of solo songs and duets in a neotropical thicket habitat specialist bird
The Acoustic Adaptation Hypothesis posits that habitat characteristics influence the structure of animal vocalizations and that animals will vocalize and display behaviours optimized for soundExpand
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Relationship between Species Richness of Excavator Birds and Cavity–adopters in Seven Tropical Forests in Costa Rica
Abstract The abundance of wood cavities is thought to be a limiting factor for bird species that depend on these cavities for nesting. Thus, it is expected that number of cavity adopters correlatesExpand
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Characteristics of male Spot-bellied Bobwhite (Colinus leucopogon) song during territory establishment
AbstractIn song-learning birds, male song shows a large inter-individual variation that frequently plays an important role in intra- and inter-sexual selection. In other bird groups, such asExpand
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Urban noise influences vocalization structure in the House Wren Troglodytes aedon
Urban habitats are noisy and constrain acoustic communication in birds. We analysed the effect of anthropogenic noise on the vocalization characteristics of House Wrens Troglodytes aedon at two sitesExpand
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Effect of urbanization on the avifauna in a tropical metropolitan area
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 byExpand
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