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Publikováno v:
Ibis. 163:1004-1016
Autor:
Joana Micael, Pedro Rodrigues
Publikováno v:
Ibis. 163:283-291
The Inca Empire was the largest ancient civilization in South America, extending across almost 4000 km of distinct environments from the Pacific coast to the Andes, and throughout most of the arid desert between. The present study highlights the impo
Publikováno v:
Ibis. 163:231-246
Autor:
Juan Arizaga, Diego Villanúa, Jaime Resano-Mayor, Alfredo Herrero, Juan M. Barbarin, Daniel Alonso, Ricardo Rodríguez, Jesús Mari Lekuona
Publikováno v:
Ibis. 160:542-553
Open landfills seem to be playing an increasing role as target feeding areas for several species, not only in their breeding areas or during the winter, but also during the migration period. Evaluating the extent to which landfill sites are used by m
Publikováno v:
Ibis. 160:365-378
Accurate population estimates are important for monitoring the conservation status of species, but nocturnal burrow-nesting seabirds are notoriously difficult to count. Storm petrel species (Hydrobatidae) are particularly challenging, as burrow entra
Autor:
Simona Imperio, Giorgia Gaibani, Claudio Celada, Jacopo G. Cecere, Carlo Catoni, Pedro Geraldes
Publikováno v:
Ibis. 157:284-298
The distribution of seabirds at sea is influenced by physical, ecological and anthropogenic factors such as sea depth, prey distribution, intra-specific competition and commerical fishing activities. We quantified the foraging habitat preferences of
Autor:
Krzysztof Kaczmarek, Piotr Minias
Publikováno v:
Ibis. 155:102-112
Estimates of refuelling rates in migrating waders are best based on intra-seasonal recaptures of individually marked birds. This method, however, has methodological problems associated with capture effects and difficulties in attaining sufficient sam
Autor:
Alberto Velando, Ignacio Munilla
Publikováno v:
Ibis. 152:405-409
Oiling of seabirds is a serious ecological threat to marine ecosystems worldwide (Wells 2001). Because they spend much of their lives at sea, seabirds are particularly prone to marine oil pollution exposure, with shortand longterm population conseque
Publikováno v:
Ibis. 142:35-39
The migration routes of Steller's Sea Eagles Haliaeetus pelagicus and differences in migration schedule between adult and young eagles were studied by satellite tracking We tracked nine Steller's Sea Eagles successfully in two years. Eight of the eag
Autor:
Fábio Olmos
Publikováno v:
Ibis. 139:685-691
Flocks of seabirds attending commercial bottom long-line fishing operations on the coastal shelf off southeastern Brazil show a greater species diversity during the summer than the winter (16 v 9 species), although the number of birds per flock tende