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Documents disponibles écrits par cet auteur (9)
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Ouvrage
Lynx Edicions Barcelona (ESP) 224p 58fig 36tab phot & dessins
Ouvrage
Quercus Madrid (ESP) 238p ill
Article
G. F. E. Janss, Auteur ; M. Ferrer, AuteurQuantitative differences were assessed in avian mortality by electrocution between the most frequent pole designs and habitat types in south-west Spain. Pin-type insulators in natural habitats accounted for 36.9% of total avian mortality. Includ[...]
Article
V. Penteriani, Auteur ; F. Sergio, Auteur ; M. D. Delgado, Auteur ; M. Gallardo, Auteur ; M. Ferrer, AuteurMany Studies have reported variation in bird diet composition related to spatial variation in habitat quality and landscape heterogeneity. Most diet analyses involve collection of food items at a sub-sample of available sites. Because individual[...]
Article
Factors affecting the length of the post-fledging period in the Bonelli's Eagle Hieraaetus fasciatus
J. Balbontin, Auteur ; M. Ferrer, AuteurWe investigated factors associated with the length of the post-fledging dependence period in 28 radio-tagged young Bonelli's Eagles Hieraaetus fasciatus monitored from 1998 to 2000. Under the assumptions of the Resource Competition Hypothesis (R[...]
Article
I. A. Bisson, Auteur ; M. Ferrer, Auteur ; D. M. Bird, AuteurWe examined nest-site selection by Spanish Imperial Eagles (Aquila adalberti) in Donana National Park (southwestern Spain) from 1984-1994. Spanish Imperial Eagles are large birds of prey that defend and occupy a territory year-round. Identifying[...]
Article
V. Penteriani, Auteur ; M. Ferrer, Auteur ; M. M. Delgado, AuteurOver the past 40 years, the study of animal populations has shifted from a relatively simple science that assumed the most crucial regulating mechanisms were the intrinsic properties of breeders, to a more complex and refined discipline that ref[...]
Article
A. Soutullo, Auteur ; V. Urios, Auteur ; M. Ferrer, AuteurWe tracked the daily movements of three juvenile golden eagles (Aquila chrysaetos) using satellite telemetry. Straight distances covered in an hour and throughout a day were calculated. Daily movements of golden eagles are mostly characterized b[...]
Article
A. Soutullo, Auteur ; V. Urios, Auteur ; M. Ferrer, Auteur ; S. G. Penarrubia, AuteurThirteen juvenile Golden Eagles Aquila chrysaetos were tracked during their first year of life using satellite telemetry. Distances to the nest attained during that period and the age at the onset of juvenile dispersal were explored. The perform[...]
