short-tailed albatross

short-tailed albatross
Jlfutari at English Wikipedia · CC BY 2.5 · source
Name	Short-tailed albatross
Status	VU
Status system	IUCN3.1
Genus	Phoebastria
Species	albatrus
Authority	(Pallas, 1769)

short-tailed albatross is a large seabird in the genus Phoebastria historically abundant in the North Pacific and closely associated with remote islands, colonies and pelagic waters. Once driven to near-extinction by commercial hunting and egg-collecting in the 19th and 20th centuries, recovery efforts by international conservation organizations, government agencies and research institutions have helped stabilize populations. Field studies by ornithologists, conservation biologists and marine ecologists documented life history traits, migratory patterns and threats such as bycatch, habitat loss and introduced predators.

Taxonomy and systematics

The species was described by Pieter Pallas in the 18th century and placed in the genus Phoebastria alongside other North Pacific albatrosses; taxonomic treatments have been addressed in monographs by Louis Agassiz, Eugene B. Willcox and modern revisions by teams at institutions like the American Museum of Natural History and the Smithsonian Institution. Molecular studies using mitochondrial DNA and multilocus approaches by researchers affiliated with University of California, Berkeley, University of Washington, National Oceanic and Atmospheric Administration, and the Canadian Wildlife Service have clarified relationships among Phoebastria species and informed conservation taxonomy under committees such as the International Ornithologists' Union and the IUCN. Historic collections in institutions including the Natural History Museum, London, Muséum national d'Histoire naturelle, and the Hokkaido University Museum preserve type material and contributed to systematic reviews published in journals like The Auk, Ibis, and Molecular Phylogenetics and Evolution.

Description

Adults display a striking combination of white plumage and dark remiges noted in early accounts by explorers associated with Captain James Cook expeditions and recorded in art by John James Audubon; museum specimens in the American Museum of Natural History and the National Museum of Nature and Science (Tokyo) demonstrate adult morphology. Field guides from publishers such as Princeton University Press and institutions like the Royal Ontario Museum describe a large bill, bright-yellow to pinkish bare parts, long wingspan compared with Phoebetria albatrosses, and sexual dimorphism reported in studies from Cornell Lab of Ornithology. Measurements and molt sequences cited in research by teams at Duke University, Scripps Institution of Oceanography, and the Wildlife Conservation Society support identification criteria used by birders visiting islands like Torishima and Minami-Tori-shima.

Distribution and habitat

The species breeds on remote North Pacific islands; historic and contemporary breeding sites include Torishima, Minami-Tori-shima, and other volcanic islets monitored by the Japan Ministry of the Environment, United States Fish and Wildlife Service, and NGOs such as BirdLife International. Post-breeding and non-breeding movements carry birds across the Pacific to areas surveyed by expeditions from the National Oceanic and Atmospheric Administration, Fisheries and Oceans Canada, and research cruises associated with Woods Hole Oceanographic Institution and Universidad de Concepción. Satellite telemetry projects run by JAXA collaborators, University of Tokyo, and Hakodate Museum of Northern Peoples revealed pelagic distributions including feeding in productive zones influenced by the Kuroshio Current, California Current, and regions near Aleutian Islands. Habitat use extends from open ocean to coastal shelves and island slopes where nesting requires tussock grass, volcanic scree and predator-free terrain.

Behavior and ecology

Foraging ecology studies by teams at Scripps Institution of Oceanography, Monterey Bay Aquarium Research Institute, University of British Columbia, and the National Institute of Water and Atmospheric Research document surface-seizing and scavenging on fishery discards, squid and carrion; stable isotope analyses published in Marine Ecology Progress Series illuminate trophic position. Flight and dynamic soaring behavior has been quantified using GPS tags provided by collaborations with Global Ocean Observing System, BirdLife International and technological partners like Lotek and Argos (satellite system). Interactions with other seabirds such as Laysan albatross, Black-footed albatross, and gulls observed at shared foraging grounds are described in ecological syntheses from University of Hawaii at Manoa and Stanford University.

Reproduction and life history

Breeding biology monitored by researchers from the Wild Bird Society of Japan, USGS and university teams shows colonial nesting, long pair bonds, biennial breeding in many individuals, and parental care patterns comparable to other albatrosses described in textbooks from Cambridge University Press. Clutch size, incubation periods and chick-rearing timelines have been reported in long-term studies supported by the Global Seabird Tracking Database, with demographic models developed by groups at Cornell Lab of Ornithology, BirdLife International and IUCN informing population viability analyses. Juvenile dispersal, age at first breeding and longevity data are derived from banding programs administered by entities including the Banding Office (Japan), USFWS and academic ringers.

Conservation status and threats

Once persecuted for feathers in markets centered in cities like Tokyo and Nagoya and hunted by collectors during the era of the Meiji Restoration, the species declined precipitously; recovery has been coordinated under frameworks involving the Convention on Migratory Species, Agreement on the Conservation of Albatrosses and Petrels, and national laws enforced by the Japan Ministry of the Environment and United States Fish and Wildlife Service. Contemporary threats include longline bycatch documented by observers with National Marine Fisheries Service, habitat disturbance from invasive species such as rats controlled in eradication campaigns led by Conservation International, The Nature Conservancy, and island restoration projects supported by BirdLife International. Conservation actions include protected area designation under agencies like the Ministry of the Environment (Japan), translocation efforts modeled by teams from Royal Society for the Protection of Birds and restoration work funded by organizations including the Packard Foundation and Sloan Foundation.

Interaction with humans and cultural significance

Cultural references appear in folklore and historical records from regions governed by Tokugawa shogunate and modern communities near Izu Islands and the Ogasawara Islands, and the species features in outreach by institutions like the Hakodate City Museum and the Yokohama Zoological Garden. Conservation education programs run by NGOs such as BirdLife International, Wetlands International and local groups engage fisheries managed by agencies including Fisheries Agency (Japan) to reduce bycatch, while ecotourism to islands monitored by the Japan National Tourism Organization and research-led visits supported by universities provide economic incentives for protection. International collaborations involving the IUCN, Convention on Biological Diversity and regional fisheries management organizations integrate traditional knowledge, scientific monitoring and policy to promote long-term persistence.

Category:Phoebastria Category:Birds of the North Pacific