This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Sharp-tailed Sandpiper | |
|---|---|
| Name | Sharp-tailed Sandpiper |
| Status | LC |
| Status system | IUCN3.1 |
| Genus | Calidris |
| Species | acuminata |
| Authority | (Gould, 1845) |
Sharp-tailed Sandpiper The Sharp-tailed Sandpiper is a medium-sized migratory wader in the genus Calidris, noted for its long-distance movements and distinctive breeding and non-breeding plumages. It is a subject of study across ornithological institutions including the Royal Society, BirdLife International, and various universities, and it features in fieldwork by organisations such as the Australian Museum and the Smithsonian Institution. Historical collectors and describers such as John Gould, Charles Darwin-era naturalists, and expeditions like those led by James Cook contributed specimens that informed early taxonomy and biogeography.
Described by John Gould in 1845, the species was placed in the genus Calidris following systematic treatments influenced by taxonomists associated with the British Museum and the Linnean Society. Nomenclatural work by scholars affiliated with the Zoological Society of London and contributors to the International Commission on Zoological Nomenclature informed subsequent stabilisation of the name. Molecular studies by researchers at institutions such as the Natural History Museum, London and the American Museum of Natural History employed techniques refined in laboratories at universities like Harvard University and the University of Cambridge to clarify relationships within Scolopacidae. The specific epithet reflects morphology noted by early collectors on voyages linked to the Hudson's Bay Company and colonial natural history networks.
Adults show a rufous-streaked crown and a heavily scaled breast and flanks in non-breeding plumage, characters compared in field guides published by the Royal Australasian Ornithologists Union and the British Trust for Ornithology. Identification features are discussed in monographs produced by the Cornell Lab of Ornithology and depicted in plates attributed to illustrators who worked for publications like John James Audubon’s folios. Measurements reported by researchers at the Australian National University and the University of Sydney provide wingspan, bill and tarsus lengths used by banding programs coordinated with governments such as the Australian Government Department of the Environment. Plumage variation and molt sequences have been documented in journals like Ibis and The Auk, and discussed at conferences organized by the American Ornithological Society.
Breeding occurs in the riverine wetlands and tundra regions of Siberia and adjacent parts of Russia, with range margins investigated by teams from the Russian Academy of Sciences and the Arctic Council biodiversity assessments. Non-breeding and migratory stopovers are concentrated in Australasia, notably across Australia and New Zealand, with significant records in places monitored by the New Zealand Department of Conservation and the Australian Bird and Bat Banding Scheme. Vagrant records have brought the species to Europe, North America, and island territories catalogued by the United States Fish and Wildlife Service and the European Bird Census Council. Key habitats cited in conservation plans include wetlands listed under the Ramsar Convention and reserves managed by agencies such as Parks Australia and the UK’s Joint Nature Conservation Committee.
Foraging behaviour—probing soft substrates and gleaning in shallow water—parallels that described in ecological studies from institutions including the University of Melbourne and Wageningen University. Diet studies published in journals like Marine Ornithology and Proceedings of the Royal Society document invertebrate prey items sampled by teams from the Smithsonian Tropical Research Institute and CSIRO. Predator–prey interactions and anti-predator responses have been observed in areas monitored by the Australian Commonwealth Scientific and Industrial Research Organisation and Russian field stations, and are relevant to management by agencies such as the Convention on Migratory Species. Social behaviour at stopovers has been compared with mixed-species assemblages studied by researchers at the Max Planck Institute for Ornithology and the British Ornithologists’ Union.
Long-distance migration connects breeding grounds in northern Eurasia with Australasian non-breeding areas, movements tracked using ringing coordinated by schemes like EURING and the Australasian Wader Studies Group, and more recently by satellite and geolocator tagging programs run by teams at institutions such as the University of Oxford and the Smithsonian Migratory Bird Center. Flyways intersect with networks charted by the East Asian–Australasian Flyway Partnership and are influenced by stopover sites included in national inventories by the Japanese Ministry of the Environment and the People’s Republic of China conservation agencies. Historical vagrancy records documented by the American Birding Association and the Royal Society for the Protection of Birds illuminate occasional occurrences in unexpected regions such as North America and Europe.
Breeding ecology, including clutch size, incubation behaviour and nest site selection in tundra habitats, has been reported by teams from the University of Alaska Fairbanks and the Russian Institute of Ecology. Nest predation studies reference predator species monitored by entities such as the Norwegian Institute for Nature Research and municipal wildlife services. Lifespan data derive from banding recoveries administered by the Australian Bird and Bat Banding Scheme and ringing records collated by the British Trust for Ornithology, with survivorship estimates used in demographic models produced by academics at Duke University and the University of California, Santa Cruz.
The species is listed as Least Concern by IUCN assessments compiled by BirdLife International, but faces threats documented by conservation NGOs including WWF, Wetlands International, and national parks agencies. Habitat loss from land-use change is tracked by agencies such as the Food and Agriculture Organization and reported in environmental impact assessments for development projects overseen by state governments in Australia and Russia. Climate change impacts projected by the Intergovernmental Panel on Climate Change and regional assessments by the Australian Bureau of Meteorology affect breeding and staging habitats, while pollution incidents prompting responses from the Environmental Protection Agency and local conservation trusts have led to targeted management. Conservation measures include site protection under the Ramsar Convention, monitoring by the East Asian–Australasian Flyway Partnership, and community-based programs supported by universities and avian charities such as BirdLife Australia and the Royal Society for the Protection of Birds.
Category:Calidris Category:Birds described in 1845