Global Circumnavigations: Tracking Year-Round Ranges of Nonbreeding Albatrosses

  title={Global Circumnavigations: Tracking Year-Round Ranges of Nonbreeding Albatrosses},
  author={John P. Croxall and Janet R. D. Silk and Richard A. Phillips and Vsevolod Afanasyev and Dirk R. Briggs},
  pages={249 - 250}
Although albatrosses are paradigms of oceanic specialization, their foraging areas and migration routes when not breeding remain essentially unknown. Our continuous remote tracking of 22 adult gray-headed albatrosses for over 30 bird-years reveals three distinct strategies: (i) Stay in breeding home range; (ii) make return migrations to a specific area of the southwest Indian Ocean; and (iii) make one or more global circumnavigations (the fastest in just 46 days). The consistencies in patterns… Expand

Topics from this paper

Foraging ecology of albatrosses and petrels from South Georgia: two decades of insights from tracking technologies
Improved coverage of different life-history stages and seasons has revealed striking variation in distribution in relation to seasonality of resources and reproductive constraints, and more detailed analyses of activity patterns suggest that birds adjust flight behaviour at multiple spatial scales. Expand
Tracking juveniles confirms fisheries-bycatch hotspot for an endangered albatross
Abstract Fisheries bycatch is a major threat to marine megafauna such as seabirds. Population monitoring has revealed low survival of juvenile seabirds over recent decades, potentially because naiveExpand
Postnatal dispersal of wandering albatrosses Diomedea exulans: implications for the conservation of the species
The complete overlap of the juveniles' foraging ranges with major long-line fisheries in the subtropical waters constitutes a major threat that could jeopardize the long term recovery ability of populations of the endangered wandering albatross in the Indian Ocean. Expand
Tracking Long-Distance Songbird Migration by Using Geolocators
Migration routes of migratory songbirds to the Neotropics were mapped by using light-level geolocators mounted on breeding purple martins and wood thrushes and suggesting high connectivity of breeding and wintering populations. Expand
Migratory tactics and wintering areas of Northern Gannets (Morus bassanus) breeding in North America
Migration has evolved to allow organisms to undertake life-history functions in the most appropriate place at the most appropriate time. Migration creates seasonal ecological linkages that haveExpand
Stage-dependent distribution of the Critically Endangered Amsterdam albatross in relation to Economic Exclusive Zones
From the areas visited by the albatrosses, which coastal states share responsibility in regulating industrial fishing in their Exclusive Economic Zones (EEZs) are identified, to promote the preservation of this species. Expand
Many birds show a surprising degree of intraspecific variability in migratory tendency and choice of wintering site. In this study, we tracked the seasonal movements of 35 nonbreeding Black-browedExpand
Marine spatial planning for the conservation of albatrosses and large petrels breeding at South Georgia
Tracking of seabirds at sea is valuable for marine spatial planning. Many seabirds are of conservation concern, including albatrosses and large petrels (Procellariiformes) which face a major threatExpand
Tracking of Arctic terns Sterna paradisaea reveals longest animal migration
The tracking of 11 Arctic terns fitted with miniature (1.4-g) geolocators revealed that these birds do indeed travel huge distances, and identified a previously unknown oceanic stopover area in the North Atlantic used by birds from at least two breeding populations. Expand
Albatross overlap with fisheries in the Benguela Upwelling System: implications for conservation and management
Evidence is presented that black- browed albatrosses forage to a much greater extent on natural prey than do white-capped alba- trosses, and the benefit of a management decision to limit discarding as a mitigation measure is likely to outweigh the disadvan- tage of reduced food. Expand


Oceanic respite for wandering albatrosses
It is shown that during these periods wandering albatrosses leave the foraging grounds that they frequent while breeding for specific, individual oceanic sectors and spend the rest of the year there — each bird probably returns to the same area throughout its life. Expand
Foraging niches of three Diomedea albatrosses
Three species of biennial breeding southern hemisphere albatrosses — Diomedea san- fordi from the Chatham Islands, D. antipodensis from Antipodes Island and D. exulans from South Georgia — wereExpand
Satellite Tracking of the Wandering Albatross Diomedea exulans around Australia and in the Indian Ocean
The flight paths of five Wandering Albatrosses Diomedea exulans chionoptera were followed using satellite telemetry from Bellambi, New South Wales, around southern Australia to off Cape Leeuwin, Western Australia, and across the Indian Ocean. Expand
Foraging distribution of the black-browed albatross, Thalassarche melanophris, breeding in the Falkland Islands
1.The overall foraging distribution of black-browed albatross from the Falkland Islands is described, based on data from two different stages of the breeding season and two separate breeding sites,Expand
Accuracy of geolocation estimates for flying seabirds
The accuracy of GLS tags is more than adequate for tracking migration and breeding-season foraging ranges of pelagic species, and for identifying broad-scale habitat preferences, overlap and potential conflict with commercial fisheries. Expand
Seasonal sexual segregation in two Thalassarche albatross species: competitive exclusion, reproductive role specialization or foraging niche divergence?
It is suggested that seasonal sexual segregation in black–browed and grey–headed albatrosses is attributable to niche divergence mediated by differences in flight performance, and may have implications for conservation in relation to sex–specific overlap with commercial fisheries. Expand