Oceanites oceanicus 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Procellariiformes Oceanitidae

Scientific Name: Oceanites oceanicus
Species Authority: (Kuhl, 1820)
Common Name(s):
English Wilson's Storm-petrel, Wilson's Storm-Petrel, Wilson's Storm Petrel
French Océanite de Wilson
Taxonomic Source(s): del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Butchart, S., Calvert, R. & Ekstrom, J.
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Previously published Red List assessments:
2009 Least Concern (LC)
2008 Least Concern (LC)
2004 Least Concern (LC)
2000 Lower Risk/least concern (LR/lc)
1994 Lower Risk/least concern (LR/lc)
1988 Lower Risk/least concern (LR/lc)

Geographic Range [top]

Range Description: The breeding range of Wilson's Storm-petrel includes subantarctic islands from Cape Horn (Chile) east to the Kerguelen Islands (French Southern Territories), and also includes coastal Antarctica. It undergoes trans-equatorial migration, spending the off-season in the middle latitudes of the north Atlantic and north Indian Ocean. A lower number of individuals also migrate to the Pacific.

Countries occurrence:
Angola (Angola); Antarctica; Argentina; Aruba; Australia; Bahamas; Barbados; Bermuda; Bonaire, Sint Eustatius and Saba (Saba, Sint Eustatius); Bouvet Island; Brazil; Cameroon; Canada; Cape Verde; Cayman Islands; Chile; Congo; Congo, The Democratic Republic of the; Costa Rica; Côte d'Ivoire; Cuba; Djibouti; Dominican Republic; Ecuador; Falkland Islands (Malvinas); Fiji; France; French Guiana; French Southern Territories; Gabon; Gambia; Grenada; Guadeloupe; Guatemala; Guinea-Bissau; Guyana; Heard Island and McDonald Islands; India; Indonesia; Iran, Islamic Republic of; Ireland; Liberia; Madagascar; Maldives; Marshall Islands; Martinique; Mauritania; Mauritius; Mexico; Micronesia, Federated States of ; Morocco; Mozambique; Namibia; New Zealand; Oman; Pakistan; Peru; Portugal; Puerto Rico; Réunion; Saint Helena, Ascension and Tristan da Cunha; Saint Martin (French part); Saint Pierre and Miquelon; Saint Vincent and the Grenadines; Saudi Arabia; Senegal; Seychelles; Sint Maarten (Dutch part); Somalia; South Africa; South Georgia and the South Sandwich Islands; Spain (Canary Is. - Vagrant); Sri Lanka; Suriname; Trinidad and Tobago; United Arab Emirates; United Kingdom; United States; Uruguay; Venezuela, Bolivarian Republic of; Virgin Islands, British; Virgin Islands, U.S.; Yemen
Antigua and Barbuda; Comoros; Denmark; Dominica; Egypt; Germany; Ghana; Iceland; Israel; Italy; Jamaica; Japan; Jordan; Kenya; Kiribati; Malaysia; Myanmar; New Caledonia; Nigeria; Norway; Panama; Poland; Sierra Leone; Solomon Islands; Svalbard and Jan Mayen; Vanuatu
Present - origin uncertain:
American Samoa (American Samoa); Anguilla; Bahrain; Benin; British Indian Ocean Territory; Christmas Island; Cocos (Keeling) Islands; Colombia; Cook Islands; Equatorial Guinea; Eritrea; French Polynesia; Guinea; Mayotte; Niue; Norfolk Island; Papua New Guinea; Pitcairn; Samoa; Sao Tomé and Principe; Tanzania, United Republic of; Timor-Leste; Togo; Tokelau; Tonga; Turks and Caicos Islands; Tuvalu; United States Minor Outlying Islands; Wallis and Futuna; Western Sahara
Continuing decline in area of occupancy (AOO): Unknown
Extreme fluctuations in area of occupancy (AOO): No
Estimated extent of occurrence (EOO) - km2: 28500
Continuing decline in extent of occurrence (EOO): Unknown
Extreme fluctuations in extent of occurrence (EOO): No
Continuing decline in number of locations: Unknown
Extreme fluctuations in the number of locations: No
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Brooke (2004) estimated the global breeding population to number 4,000,000-10,000,000 breeding pairs, equating to 12,000,000-30,000,000 individuals.

Trend Justification:  The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
Current Population Trend: Stable
Additional data:
Continuing decline of mature individuals: Unknown
Extreme fluctuations: No Population severely fragmented: No
Continuing decline in subpopulations: Unknown
Extreme fluctuations in subpopulations: No All individuals in one subpopulation: No

Habitat and Ecology [top]

Habitat and Ecology: Wilson's Storm-petrel breeds on rocky islets, on cliffs and amongst boulder scree. It prefers to feed mainly in cold waters over continental shelves or inshore, with a diet of comprised mainly of planktonic crustaceans (especially krill) and fish (del Hoyo et al. 1992). Its diet shifts from mainly crustaceans during egg formation to an increased proportion of fish during chick-rearing and moulting (Quillfeldt et al. 2005).
Systems: Terrestrial; Marine
Continuing decline in area, extent and/or quality of habitat: Unknown
Generation Length (years): 15.6
Movement patterns: Full Migrant
Congregatory: Congregatory (and dispersive)

Citation: BirdLife International. 2012. Oceanites oceanicus. The IUCN Red List of Threatened Species 2012: e.T22698436A40229559. . Downloaded on 27 November 2015.
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