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Stercorarius maccormicki   Saunders, 1893

south polar skua

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Stercorarius maccormicki   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Aves | Charadriiformes | Stercorariidae

Environment / Climate / Range

Others.  Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Pacific Ocean, Southwest Atlantic and Antarctic Atlantic. Subtropical to polar.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 53.0 cm TL male/unsexed; (Ref. 8812); max. published weight: 1.3 kg (Ref. 356)

Biology     Glossary (e.g. epibenthic)

Wingspan: 127 cm (Ref. 8812). A pelagic, long-lived seabird. Breeds mainly along the coast and associated islands in the Antarctic continent, possibly extending inland in the South Shetland and South Orkeny Islands; possibly the southernmost breeding bird in the world, recorded at Amundsen-Scott Station at the South Pole. In some localities, may be found nesting in sympatry with Brown Skuas (Stercorarius antarcticus) and notably feed exclusively at sea while Brown Skuas feed on land (Ref. 95073). However, where there is allopatric nesting, it forages both at sea and terrestrially, mainly on penguin eggs and chicks (Ref. 95081). Exhibits a variety of foraging tactics but feeds mainly on penguins and pelagic fish. First breeding at 7 to 9 years of age. Breeding pairs nest in areas without snow and ice; typically lays two eggs. Size of breeding colonies vary; the largest colony at Cape Crozier, Ross Island, with ca.1000 breeding pairs. At Cape Crozier, breeding span recorded at almost 16 years. Monogamous for multiple seasons and with high site-fidelity. Generally breed in association with Adelie Penguins and may be the only avian predator bearing a major impact on populations of breeding seabirds in the Antarctic (Ref. 95073).

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

Main reference References | Coordinator | Collaborators

Harrison, P. 1983. (Ref. 8812)

Short description Morphology

Wing: 39.55 cm.

IUCN Red List Status (Ref. 114614)

   

CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses


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More information

Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 0.2 - 18.2, mean 6.4 (based on 1318 cells; Ref. 115970).
Vulnerability (Ref. 71543)
Moderate vulnerability (41 of 100)
Price category (Ref. 80766)
Unknown