7 documents found, page 1 of 1
The BirdLife Seabird Tracking Database: 20 years of collaboration for marine co...
Carneiro, Ana P.B.; Dias, Maria P.; Clark, Bethany L.; Pearmain, Elizabeth J.; Handley, Jonathan; Hodgson, Amy R.; Croxall, John P.The BirdLife Seabird Tracking Database (STDB) was established in 2004 to collate tracking data to address the incidental mortality of seabirds in fisheries and to contribute to identification of sites at sea relevant to establishment of Marine Protected Areas. After 20 years, the STDB has grown to hold ca. 39 million locations for 168 species from >450 breeding sites. The STDB has become a powerful tool to supp...
Framework for mapping key areas for marine megafauna to inform Marine Spatial P...
Augé, Amélie A.; Dias, Maria P.; Lascelles, Ben; Baylis, Alastair M.M.; Black, Andy; Boersma, P. Dee; Catry, Paulo; Crofts, Sarah; Galimberti, FilippoMarine Spatial Planning (MSP) is becoming a key management approach throughout the world. The process includes the mapping of how humans and wildlife use the marine environment to inform the development of management measures. An integrated multi-species approach to identifying key areas is important for MSP because it allows managers a global representation of an area, enabling them to see where management can...
Foraging behaviour of four albatross species by night and day
Phalan, Ben; Phillips, Richard A.; Silk, Janet R. D.; Afanasyev, Vsevolod; Fukuda, Akira; Fox, James; Catry, Paulo; Higuchi, Hiroyoshi; Croxall, John P.We integrated information from satellite transmitters, GPS loggers and wet/dry activity loggers to compare the at-sea behaviour of 4 sympatric albatross species by night and day: wandering Diomedea exulans, grey-headed Thalassarche chrysostoma, black-browed T. melanophrys and light-mantled sooty Phoebetria palpebrata (in total, 350 foraging trips by 101 individuals). Trip duration, distance and maximum range va...
Factors affecting the solution of a parental dilemma in albatrosses: At what ag...
Catry, Paulo; Phillips, Richard A.; Forcada, Jaume; Croxall, John P.With rare exceptions, avian offspring are continuously attended by one parent for at least the first few days after hatching. The duration of this phase of the nesting cycle is regulated by a trade-off between the benefits of brooding/guarding and those of foraging.We manipulated offspring age in grey-headed albatrosses, Thalassarche chrysostoma, by swapping chicks between nests. Parents given chicks 6 days old...
Senescence effects in an extremely long-lived bird: The grey-headed albatross T...
Catry, Paulo; Phillips, Richard A.; Phalan, Ben; Croxall, John P.Studies attempting to document reproductive or other pre-lethal senescence effects in wild birds typically face an array of problems, including flaws in statistical analyses, non-adaptive philopatry to deteriorating environments, confounding effects arising from cohort heterogeneity and differential death rates of phenotypes and the frequent pairing of old birds to younger mates. Furthermore, recent studies sug...
Foraging strategies of grey-headed albatrosses Thalassarche chrysostoma: Integr...
Catry, Paulo; Phillips, Richard A.; Phalan, Ben; Silk, Janet R. D.; Croxall, John P.We identified a range of foraging strategies adopted by grey-headed albatrosses Thalassarche chrysostoma rearing chicks at Bird Island, South Georgia, by simultaneously using satellite telemetry, wet/dry activity recorders and stomach temperature loggers. The albatrosses foraged mostly over oceanic waters, probably associated with the Polar Front north of South Georgia, and also over shelf-slope waters around t...
Sustained fast travel by a gray-headed albatross (Thalassarche chrysostoma) rid...
Catry, Paulo; Phillips, Richard A.; Croxall, John P.A Gray-headed Albatross (Thalassarche chrysostoma) was recorded traveling, in the course of a foraging trip, at a minimum average ground speed of >110 km h–1 for ~9 h with virtually no rest. A er taking into account the sinuosity of albatross fl ight, actual mean ground speed was predicted to be ≥127 km h–1, achieved in association with high tailwinds during an Antarctic storm. Despite its high speed and the st...