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Article
A. Margalida, Auteur ; D. Garcia, AuteurNest use and interspecific relationships were studied in the Bearded Vulture for nest location in the eastern Pyrenees (NE Spain) and their influence an breeding success. A total of 40% (n = 70) of Bearded Vulture nests were usurped (expulsions)[...]
Article
A. Margalida, Auteur ; J. Bertran, Auteur ; J. Boudet, AuteurWe compared direct observation methods to assess the diet of nestling Bearded Vultures in the Pyrenees northeastern Spain. Using video cameras and telescopes, diet was determined from observations of food items delivered to, and prey remains in,[...]
Article
R. Moreno-Opo, Auteur ; A. Margalida, AuteurDetecting and quantifying threats and researching and implementing management actions are key to improving the conservation status of endangered species. Bibliometric analysis can constitute a useful tool for the evaluation of such questions fro[...]
Article
L. M. Gonzalez, Auteur ; A. Margalida, Auteur ; R. Sanchez, Auteur ; J. Oria, Auteur
Article
J. Bertran, Auteur ; A. Margalida, AuteurMale-male mountings appear to be very common in polyandrous bearded vulture Gypaetetus barbatus trios. We observed sexual activity in two trios that occupied the same territory in different years. We recorded a total of 167 copulation attempts. [...]
Article
A. Margalida, Auteur ; J. Bertran, AuteurDans Ardea (88(2) 2000)Bearded Vultures Gypaetus barbatus began supplying material to their nests on average 111 d (range 91-126 d) prior to laying. Males were significantly more active that females. Heavy material (branches) was transported indistinctly in the talons[...]
Article
A. Margalida, Auteur ; S. Ecolan, Auteur ; J. Boudet, Auteur ; J. Bertran, Auteur ; J. M. Martinez, Auteur ; R. Heredia, AuteurWe designed a system of solar-powered video cameras that transmitted images via telemetry to a monitor. This system allowed us to study the breeding behavior of the Bearded Vulture (Gypaetus barbatus) in the Pyrenees (northeastern Spain). From 2[...]
Article
J. Bertran, Auteur ; A. Margalida, AuteurGriffon Vultures (Gyps fulvus) are responsible for most eases of usurpation of nests of Bearded Vultures (Gypaetus barbatus). However, little is known about how both species interact during reproduction. We studied territorial behaviour during t[...]
