Category: Atlantic Ocean

FLIGHT SPEEDS AND WINGBEAT FREQUENCIESOF THE MAGNIFICENT FRIGATEBIRD

Magnificent Frigatebird (Fregata magnificens) Science Article 1 abstract Fregatebirds are well specialized for remaining airborne for long periods of time. Unfortunately relatively little is actually known about their flight capabilities. The Magnificent Frigatebird (Fregata magnificens) is primarily a New World species and is seen regularly along the southern coasts of the United States. In the […]

Influence of migratory behaviour on the morphology and breeding biology of Puffinus Shearwaters

Little Shearwater (Puffinus assimilis) Science Article 1 abstract Ecological, life-history, breeding biology and morphologic data were collected for 18 shearwater species Puffinus spp., and the relationships between these parameters and migratory behaviour were investigated. Intraspecific variation in relative wing length was associated with differences in migratory behaviour of the Little Shearwater Puffinus assimilis populations, but […]

Influence of migratory behaviour on the morphology and breeding biology of Puffinus Shearwaters

Little Shearwater (Puffinus assimilis) Science Article 1 abstract Ecological, life-history, breeding biology and morphologic data were collected for 18 shearwater species Puffinus spp., and the relationships between these parameters and migratory behaviour were investigated. Intraspecific variation in relative wing length was associated with differences in migratory behaviour of the Little Shearwater Puffinus assimilis populations, but […]

Obstruction and starvation associated with plastic ingestion in a Northern Gannet Morus bassanus and a Greater Shearwater Puffinus gravis

Greater Shearwater (Puffinus gravis) Science Article 1 abstract Plastic ingestion by seabirds is well documented (see Laist 1997for a list of species with ingestion records). However, casesdefinitively attributing seabird mortality to ingestion of plastic arerare. Seabirds that die from ingestion often suffer obstruction of thegastrointestinal tract. Ultimately, the birds die of starvation andoften quickly sink […]

Ages of Storm Petrels Hydrobates pelagicus prospecting potential breeding colonies

European Storm-petrel (Hydrobates pelagicus) Science Article 1 abstract Each year, ringers using sound lures mark and recapture immature Storm Petrels Hydrobates pelagicus prospecting potential breeding colonies. Attempts have been made to estimate the size of this population, but a full demographic model has not been possible since the age structure of this population has not […]

Population size estimation and metapopulation relationships of Storm Petrels Hydrobates pelagicus in the Gulf of Biscay.

European Storm-petrel (Hydrobates pelagicus) Science Article 5 abstract Storm Petrels Hydrobates pelagicus are notoriously difficult to census because they nest in burrows and crevices, they visit land at night, and colonies are usually visited by large numbers of itinerant pre-breeding birds (Ratcliffe et al 1998, Insley et al 2002). The Spanish Storm Petrel population has […]

The timing and pattern of moult of flight feathers of European Storm-petrel Hydrobates pelagicus in Atlantic and Mediterranean breeding areas

European Storm-petrel (Hydrobates pelagicus) Science Article 2 abstract Aims: We describe the pattern and timing of moult in European Storm-petrels Hydrobates pelagicus.Location: Benidorm Island (eastern Spain, Mediterranean Iberian coast) and Vizcaya (northern Spain, Atlantic Iberian coast).Methods: Birds were caught with mist-nests set in breeding colonies and the state of flight feathers was scored. Primary, secondary […]

Diet and foraging behaviour of the British Storm Petrel Hydrobates pelagicus in the Bay of Biscay during summer.

European Storm-petrel (Hydrobates pelagicus) Science Article 4 abstract The diet and the foraging behaviour of the British Storm Petrel Hydrobates pelagicus during the breeding period were studied from proventriculus contents obtained from adults belonging to two populations in the Bay of Biscay. The observed prey had various ecological affinities in two main groups. The first […]

Olfactory foraging strategies of procellariiform seabirds

European Storm-petrel (Hydrobates pelagicus) Science Article 3 abstract The study of olfactory foraging ability in procellariiform seabirds is now beginning to explore how species aremorphologically and behaviorally adapted to track odor plumes, and to relate these findings to models of odor transport innatural situations. According to the models, odors in atmospheric flow tend to be […]