Category: Atlantic Ocean

How can the Yelkouan shearwater survive feral cat predation?A meta-population structure as a solution?

Yelkouan Shearwater (Puffinus yelkouan) Science Article 3 abstract The Yelkouan shearwater, Puffinus yelkouan, is an endangered Mediterranean endemic species of burrowing petrel threatened by feral cats. The life-history parameters of a small population of Yelkouan shearwaters on the Mediterranean island, Port-Cros, were studied inconjunction with the diet of feral cats, to examine the birds’ vulnerability […]

Tracking of the Yelkouan Shearwater

Yelkouan Shearwater (Puffinus yelkouan) Science Article 2 abstract Over the past six months, the EU LIFE Yelkouan Shearwater Project has been undertaking fieldwork to fitelectronic devices to the Yelkouan Shearwaters to monitor their movements at sea. The tags are the latest intechnology for seabird tracking. This is the first time that such extensive research on […]

The endemic Mediterranean yelkouan shearwaterPuffinus yelkouan: distribution, threats and a pleafor more data

Yelkouan Shearwater (Puffinus yelkouan) Science Article 1 abstract The endemic Mediterranean yelkouan shearwater Puffinus yelkouan, elevated to the rank of species in 2002, is poorly monitored and studied. Despite this lack of data and the susceptibility of closely related species to threats at breeding sites and foraging areas, the yelkouan shearwater is currently considered to […]

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

Northern Gannet (Morus bassanus) 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 […]

THE PELAGIC ECOLOGY OF MANX SHEARWATERS PUFFINUS PUFFINUSOFF THE SOUTHEASTERN UNITED STATES OF AMERICA

Manx Shearwater (Puffinus puffinus) Science Article 1 abstract Knowledge of the biology of Manx Shearwaters Puffinus puffinus is largely based on dataobtained in and around breeding colonies. In this paper I provide information on various aspects of the marine ecology of this shearwater. The information presented here on age and sex ratios, masses, moult sequence […]

Morphology and Ornamentation in Male MagnificentFrigatebirds: Variation with Age Classand Mating Status

Magnificent Frigatebird (Fregata magnificens) Science Article 3 abstract Male magnificent frigatebird (Fregata magnificens) ornamentationincludes bright iridescent plumage and a red inflatablegular pouch. These signals are displayed during courtship, alongwith a drumming sound produced through specialized beak clackingsresonating in the gular pouch. The extent of white in theplumage identifies three age classes of nonjuvenile male. Here […]

Morphology and Ornamentation in Male MagnificentFrigatebirds: Variation with Age Classand Mating Status

Magnificent Frigatebird (Fregata magnificens) Science Article 3 abstract Male magnificent frigatebird (Fregata magnificens) ornamentationincludes bright iridescent plumage and a red inflatablegular pouch. These signals are displayed during courtship, alongwith a drumming sound produced through specialized beak clackingsresonating in the gular pouch. The extent of white in theplumage identifies three age classes of nonjuvenile male. Here […]

Sexual conflict and parental care in magnificent frigatebirds:full compensation by deserted females

Magnificent Frigatebird (Fregata magnificens) Science Article 2 abstract Parental care is a cooperative venture between a male and a female in many socially monogamous birds. Care is costly, and thus, sexual conflict arises between the parents about how much effort they should invest into rearing their young. The sexual conflict over care is most apparent […]

Sexual conflict and parental care in magnificent frigatebirds:full compensation by deserted females

Magnificent Frigatebird (Fregata magnificens) Science Article 2 abstract Parental care is a cooperative venture between a male and a female in many socially monogamous birds. Care is costly, and thus, sexual conflict arises between the parents about how much effort they should invest into rearing their young. The sexual conflict over care is most apparent […]

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 […]