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Trophic versus geographic structure in stable isotope signatures of pelagic seabirds breeding in the northeast Atlantic
The present study illustrates a noticeable trophic segregation of northeast Atlantic Procellariiform species, and shows that the isotopic approach has limited applicability for the study of animal movements in the northeast Atlantic at a regional scale, but is poten- tially useful for theStudy of long-distance migrations between large marine systems.
Feeding ecology and movements of the Barolo shearwater Puffinus baroli baroli in the Azores, NE Atlantic
The results indicate that the Barolo shearwaters is a non-migratory shearwater feeding at the lowest trophic level among Macaronesian seabirds, showing both diurnal and nocturnal activity and feeding deeper in the water column, principally on small schooling squid and fish.
Post-breeding density and habitat preferences of the Azores Woodpigeon, Columba palumbus azorica: an inter-island comparison.
In this study we present a post-breeding estimate of the density of the Azores Woodpigeon, Columba palumbus azorica (Hartert & Ogilvie-Grant, 1905). During August 2003, seven of the nine islands of
Migration routes and non-breeding areas of Common Terns (Sterna hirundo) from the Azores
With the exception of Belém, in northern Brazil, and Lagoa do Peixe, in southern Brazil, the coastal areas used by the tracked birds were also those with concentrations of ringing recoveries, confirming their importance as non-breeding areas for birds from the Azores.
Population status and diet of the Yellow-legged Gull in the Azores.
During 2004 a census of the Yellow-legged Gull (Larus michahellis atlantis) was conducted in the Azores to assess its present status in the archipelago. The census yielded an estimate of 4249
Status and Distribution of Fea's Petrel, Bulwer's Petrel, Manx Shearwater, Little Shearwater and Band-Rumped Storm-Petrel in the Azores Archipelago
-This paper reports the first comprehensive surveys of Fea's Petrel (Pterodromafeae), Bulwer's Petrel (Bulweria bulwerii), Manx Shearwater (Puffinus puffinus), Little Shearwater (Puffinus assimilis
Past and present trophic position and decadal changes in diet of Yellow-legged Gull in the Azores Archipelago, NE Atlantic
A significant decrease in the trophic position of Yellow-legged Gulls in the Azores, over the last 89 years is revealed in response to the decrease inThe consumption of seabirds and fish and, an increase in the consumption of marine invertebrates (goose barnacles) and refuse.
Are European starlings breeding in the Azores archipelago genetically distinct from birds breeding in mainland Europe?
Given the lack of genetic variability in the Azores birds and their abundance throughout the archipelago, lethal control on a local basis and as part of an integrated control plan can be seen as a reasonable measure to protect tern colonies.