Alca torda   Linnaeus, 1758

Razorbill
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Alca torda

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Aves | Charadriiformes | Alcidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Others; depth range 0 - 120 m (Ref. 62202).  Polar; 82°N - 27°N, 80°W - 43°E (Ref. 124582)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northwest Atlantic, Eastern Atlantic and the Arctic: Polar to temperate.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 45.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 719.00 g (Ref. 356)

Short description Morphology

Culmen: 3.45 cm; tarsus: 2.963 cm; wing: 21.13 cm.

Biology     Glossary (e.g. epibenthic)

Total Length: 40 to 45 cm; Wingspan: 63 to 66 cm (Ref. 8812).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Breeds from northern Europe east to Russia, Iceland, Greenland, and coastal North America from Baffin Island south to the Maritime Provinces and Maine. Winters from Greenland south even to South Carolina, and in Europe to the Mediterranean. Eggs are laid from early June to early August (Ref. 87872).

Main reference References | Coordinator | Collaborators

Camphuysen, C.J.K. 1998. (Ref. 7319)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Least Concern (LC) ; Date assessed: 17 August 2021

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 2.3 - 12.7, mean 8.1 (based on 1259 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=20.71-50.32).
Vulnerability (Ref. 71543): Low to moderate vulnerability (35 of 100).
Price category (Ref. 80766): Unknown.