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| Uria lomvia | |
|---|---|
| Name | Thick-billed murre |
| Status | NT |
| Status system | IUCN3.1 |
| Genus | Uria |
| Species | lomvia |
| Authority | (Linnaeus, 1758) |
Uria lomvia
Uria lomvia is a high-Arctic alcid known for dense breeding colonies, deep-diving foraging behavior, and a circumpolar distribution across polar and subpolar seas. It is a focal species in studies of seabird ecology, climate change impacts, and Arctic marine food webs, and is monitored by multiple conservation and research programs.
The species was described in the 18th century by Carl Linnaeus and has been placed in the genus Uria within the family Alcidae. Historical classifications referenced taxonomic works by Johann Friedrich Gmelin, Georges Cuvier, and revisions drawing on comparative anatomy by John James Audubon and molecular phylogenies influenced by methods from Allan J. Baker and A. Townsend Peterson. Common names include thick-billed murre, Brünnich's guillemot (after Morten Thrane Brünnich), and in regional contexts names recorded by indigenous communities connect to vocabularies documented by researchers associated with institutions such as the Smithsonian Institution and the American Museum of Natural History.
Adults are black above and white below with a characteristic heavy bill and short wings adapted for diving, features compared in morphological surveys at Natural History Museum, London and Canadian Museum of Nature. Plumage variation and molt patterns have been analyzed alongside studies of Razorbill and Common Murre specimens at University of British Columbia and Cornell Lab of Ornithology. Measurements cited in field guides from the Royal Society for the Protection of Birds and the Audubon Society show body mass and wing loading consistent with pursuit-diving taxa studied using techniques developed by Stephen B. Kress and Paul D. Boersma.
U. lomvia breeds in dense cliff colonies across the high Arctic, including locations surveyed by researchers at Svalbard, Novaya Zemlya, Baffin Island, Greenland, and the Chukchi Sea. Non-breeding and wintering movements link to pelagic areas off Labrador, the Barents Sea, the Kara Sea, and waters monitored by the Norwegian Polar Institute. Habitat associations with sea-ice dynamics have been correlated with satellite datasets from NASA and European Space Agency, and long-term monitoring programs by BirdLife International and the Canadian Wildlife Service document shifts related to oceanographic features studied by Woods Hole Oceanographic Institution and the Norwegian Institute for Nature Research.
Colony social structure and anti-predator behavior have been contrasted with Atlantic Puffin and Black-legged Kittiwake colonies in ethological studies by teams at University of Cambridge and University of Oslo. Foraging ecology is characterized by deep-diving to pursue fish and invertebrates, investigated using bio-logging and time-depth recorders pioneered at Monterey Bay Aquarium Research Institute and Dalhousie University. Prey species include capelin, sand lance, and Arctic cod, taxa often sampled in surveys coordinated with Fisheries and Oceans Canada and the International Council for the Exploration of the Sea. Predation and interspecific interactions involve Glaucous Gull, Arctic Fox, and marine mammals such as Harbour Seal and Orca, documented in multidisciplinary expeditions supported by National Geographic Society and polar research stations like Ny-Ålesund.
Breeding timing, clutch size, and chick development reflect life-history strategies described in avian demographic studies by Ralph S. Thorstrom-style monitors and long-term banding programs at Prince Leopold Island and Coats Island. Eggs are laid directly on cliff ledges in synchrony with peak prey availability determined by plankton phenology research from Scripps Institution of Oceanography and Scott Polar Research Institute. Juvenile dispersal, survival rates, and age at first breeding have been estimated via mark-recapture analyses using methods from Seber and demographic frameworks applied by The Audubon Society of Canada and the US Fish and Wildlife Service.
The species is listed with a conservation assessment by the IUCN and is subject to regional management by agencies including Environment and Climate Change Canada, the Norwegian Directorate for Nature Management, and Russian Academy of Sciences institutions. Threats include climate-driven shifts in sea ice documented by Intergovernmental Panel on Climate Change reports, fisheries interactions noted by Food and Agriculture Organization, and contaminant exposure tracked by programs at Environment Canada and the Arctic Monitoring and Assessment Programme. Population trends and risk assessments appear in reports by BirdLife International, collaborative conservation plans developed with indigenous organizations such as Inuit Tapiriit Kanatami, and management frameworks referenced by the Convention on Migratory Species.
Humans interact with the species through subsistence harvests historically recorded in ethnographic work by Franz Boas and contemporary co-management initiatives involving Nunavut Wildlife Management Board. Scientific research on physiology, migration, and climate resilience has been published in journals such as Nature, Science, Journal of Avian Biology, and Marine Ecology Progress Series, with datasets contributed by projects at Pew Charitable Trusts, The Nature Conservancy, and university consortia including University of Alaska Fairbanks and McGill University. Conservation outreach and eco-tourism at Arctic colonies are coordinated with organizations like World Wildlife Fund and local authorities to balance research access with cultural and ecological sensitivity.
Category:Alcidae Category:Birds of the Arctic Category:Seabirds