Sula sula
– Least Concern
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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CHORDATA
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Class:
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AVES
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Order:
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PELECANIFORMES
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Family:
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SULIDAE
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Scientific Name:
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Sula sula
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Species Authority:
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(Linnaeus, 1766)
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Common Name/s:
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Assessment Information
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Red List Category & Criteria:
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LC ver 3.1 (2001)
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Year Assessed:
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2004
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Assessor/s:
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BirdLife International
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Evaluator/s:
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Ekstrom, J. & Butchart, S. (BirdLife International Red List Authority)
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Justification:
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This species has a large range, with an estimated global breeding extent of occurrence of 50,000–100,000 km². It has a large global population estimated to be 600,000 individuals (M. Crosby in litt. 2003). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e., declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
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History:
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| 1988 | - | Lower Risk/least concern (BirdLife International 2004) |
| 1994 | - | Lower Risk/least concern (BirdLife International 2004) |
| 2000 | - | Lower Risk/least concern (BirdLife International 2000) |
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Geographic Range
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Range Description:
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This species has a large range, with an estimated global breeding Extent of Occurrence of 50,000-100,000 km². It has a large global population estimated to be 600,000 individuals (M. Crosby in litt. 2003). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
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Countries:
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Native:
Anguilla; Antigua and Barbuda; Aruba; Australia; Bahamas; Bangladesh; Barbados; Belize; Brazil; British Indian Ocean Territory; Cayman Islands; China; Christmas Island; Cocos (Keeling) Islands; Colombia; Comoros; Costa Rica; Cuba; Djibouti; Dominica; Dominican Republic; Ecuador; Fiji; French Guiana; French Polynesia; Greenland; Grenada; Guadeloupe; Guatemala; Haiti; Honduras; India; Indonesia; Jamaica; Japan; Madagascar; Malaysia; Martinique; Mayotte; Mexico; Montserrat; Netherlands Antilles; New Caledonia; Panama; Philippines; Puerto Rico; Russian Federation; Réunion; Saint Helena; Saint Kitts and Nevis; Saint Lucia; Saint Pierre and Miquelon; Saint Vincent and the Grenadines; Seychelles; Solomon Islands; Sri Lanka; Tonga; Trinidad and Tobago; Turks and Caicos Islands; United States; Venezuela; Viet Nam; Virgin Islands, British; Virgin Islands, U.S.; Wallis and Futuna
Vagrant:
Hong Kong; Kenya; Maldives; Oman; Portugal; Tanzania, United Republic of; Thailand
Regionally extinct vagrant:
Mauritius
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Habitat and Ecology
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System:
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Terrestrial; Marine
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