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handle: 10261/148187
Patrones de actividad de la canastera común Glareola pratincola en una colonia de reproducción.— La canastera común Glareola pratincola es una especie limícola en retroceso; no obstante, se conoce poco sobre la mayor parte de los aspectos relativos a su biología. En este estudio se pretende aportar información sobre los patrones de comportamiento básicos de la especie y se buscan diferencias entre sexos. Para ello se realizaron observacio nes focales de las actividades más comunes observadas en una colonia de reproducción situada en el suroeste de España. Las canasteras no destinaron la misma cantidad de tiempo a todos los tipos de actividad, sino que dedicaron más tiempo a la vigilancia que a alimentación y desplazamiento, y más tiempo al atuse del plumaje que a desplazamiento en el interior de la colonia. Los machos invirtieron más tiempo a vigilar la presencia de depredadores que las hembras, y ambos sexos incrementaron el tiempo dedicado al descanso y redujeron el dedicado a la vigilancia a medida que avanzaba la época de reproducción. Los efectos que el sexo y la estacio nalidad tienen en el comportamiento de vigilancia sugieren que la competencia por las hembras y la temperatura ambiental podrían influir en el patrón de actividad diaria de la canastera común durante la reproducción
Activity patterns of collared pratincoles Glareola pratincola in a breeding colony.— The collared pratincole Glareola pratincola is a declining wader species, but most aspects of its biology are poorly known. In this study, an attempt is made to characterize the basic behavioural repertoire of the species, searching for differences between sexes. Focal observations of the most common activities were obtained in a breeding colony in southwestern Spain. Pratincoles did not equally distribute their time among types of activity, but spent more time in alert behaviour than feeding and moving, and more time preening than moving in the colony site. Males devoted more time to vigilance for predators than females, and both sexes increased the time spent resting and decreased the time for vigilance as the breeding season progressed. These sex–related and seasonal effects on the vigilance behaviour suggest that competition for females and ambient temperature influence the daily activity pattern of collared pratincoles during breeding
Peer reviewed
Collared pratincole, QL1-991, Time budget, Vigilance, Waders, Colonial breeding, Zoology
Collared pratincole, QL1-991, Time budget, Vigilance, Waders, Colonial breeding, Zoology
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