English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/141848
Título

Effects of human activity on physiological and behavioral responses of an endangered steppe bird

AutorTarjuelo, Rocío; Barja, Isabel; Morales, Manuel B.; Traba, Juan; Benítez-López, Ana ; Casas, Fabián; Arroyo, Beatriz ; Delgado, M. Paula; Mougeot, François
Palabras claveTetrax tetrax
Fecal corticosterone metabolites
Flocking behavior
Foraging
Hunting
Vigilance
Fecha de publicación2015
EditorOxford University Press
CitaciónBehavioral Ecology 26(3): 828-838 (2015)
ResumenAnimals may perceive humans as a form of predatory threat, a disturbance, triggering behavioral changes together with the activation of physiological stress responses. These adaptive responses may allow individuals to cope with stressful stimuli, but a repeated or long-term exposure to disturbances may have detrimental individual- and population-level effects. We studied the effects of human activities, particularly hunting, on the behavior and physiological status of a near-threatened nongame steppe bird, the little bustard. Using a semiexperimental approach, we compared before, during, and after weekends: 1) the type and intensity of human activities and 2) the behavior and 3) physiological stress (fecal corticosterone metabolites) of wintering birds. Higher rates of human activity, in particular those related to hunting, occurred during weekends and caused indirect disturbance effects on birds. Little bustards spent more time vigilant and flying during weekends, and more time foraging in the mornings after weekend, possibly to compensate for increased energy expenditure during weekends. We also found increased physiological stress levels during weekends, as shown by higher fecal glucocorticoid metabolite concentrations. Increased corticosterone metabolite levels were associated with the highest levels of hunting-related disturbances. Little bustard showed marked behavioral and physiological (stress hormones) responses to human activities that peaked during weekends, in particular hunting. The long-term effect of this particular activity carried out during weekends from autumn throughout winter might adversely impact wintering populations of this nongame endangered species, potentially counteracting conservation efforts conducted on local as well as foreign breeding populations.
Versión del editorhttps://doi.org/10.1093/beheco/arv016
URIhttp://hdl.handle.net/10261/141848
DOI10.1093/beheco/arv016
Identificadoresdoi: 10.1093/beheco/arv016
e-issn: 1465-7279
issn: 1045-2249
Aparece en las colecciones: (EEZA) Artículos
(IREC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
steppebirdpos.pdf851,49 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.