Animalia > Chordata > Aves > Charadriiformes > Stercorariidae > Stercorarius > Stercorarius pomarinus

Stercorarius pomarinus (Pomarine Skua; Pomarine Jaeger)

Synonyms: Lestris pomarinus (homotypic)
Language: French; Spanish

Wikipedia Abstract

The pomarine skua (Stercorarius pomarinus) or pomatorhine skua, known as pomarine jaeger in the Americas, is a seabird in the skua family Stercorariidae. It is a migrant, wintering at sea in the tropical oceans.
View Wikipedia Record: Stercorarius pomarinus

EDGE Analysis

Uniqueness Scale: Similiar (0) 
1
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
12
 Unique & Vulnerable (100)
ED Score: 3.68569
EDGE Score: 1.54451
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  1.572 lbs (713 g)
Birth Weight [3]  66 grams
Female Weight [6]  1.631 lbs (740 g)
Male Weight [6]  1.429 lbs (648 g)
Weight Dimorphism [6]  14.2 %
Breeding Habitat [2]  Arctic tundra
Wintering Geography [2]  Widespread Oceans
Wintering Habitat [2]  Pelagic
Diet [4]  Carnivore (Vertebrates), Piscivore
Diet - Endothermic [4]  60 %
Diet - Fish [4]  20 %
Diet - Scavenger [4]  20 %
Forages - Ground [4]  70 %
Forages - Water Surface [4]  30 %
Clutch Size [3]  2
Clutches / Year [5]  1
Fledging [5]  32 days
Global Population (2017 est.) [2]  1,100,000
Incubation [7]  26 days
Mating System [3]  Monogamy
Maximum Longevity [1]  16 years
Migration [8]  Intercontinental
Speed [9]  34.001 MPH (15.2 m/s)
Wing Span [9]  3.87 feet (1.18 m)

Ecoregions

Protected Areas

+ Click for partial list (100)Full list (108)

Important Bird Areas

Name Location  IBA Criteria   Website   Climate   Land Use 
Valley of the Yorkutayakha river Russia (Central Asian) A1, A3, A4iii

Prey / Diet

Dicrostonyx torquatus (Arctic lemming)[10]
Lemmus sibiricus (brown lemming)[10]
Microtus miurus (singing vole)[11]

Prey / Diet Overlap

Consumers

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Storchová, Lenka; Hořák, David (2018), Data from: Life-history characteristics of European birds, Dryad, Dataset, https://doi.org/10.5061/dryad.n6k3n
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 5Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 6Maher, WJ 1974. Ecology of Pomarine, Parasitic, and Long-tailed Jaegers in northern Alaska. Pacific Coast Avifauna 37:1-148
♦ 7del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 8Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at animaldiversity.org
♦ 9Alerstam T, Rosén M, Bäckman J, Ericson PGP, Hellgren O (2007) Flight Speeds among Bird Species: Allometric and Phylogenetic Effects. PLoS Biol 5(8): e197. doi:10.1371/journal.pbio.0050197
♦ 10Predator–prey relationships: arctic foxes and lemmings, Anders Angerbjorn, Magnus Tannerfeldt and Sam Erlinge, Journal of Animal Ecology, Volume 68, Issue 1, Pages 34-49
♦ 11Microtus miurus (Rodentia: Cricetidae), F. RUSSELL COLE AND DON E. WILSON, MAMMALIAN SPECIES 42(855):75–89 (2010)
♦ 12Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0