| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | AVES | Pelecaniformes | Sulidae |
| Scientific Name: | Morus bassanus | ||||||
| Species Authority: | (Linnaeus, 1758) | ||||||
Common Name/s:
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| Synonym/s: |
Sula bassana
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| Red List Category & Criteria: | Least Concern ver 3.1 | |||||||||||||||
| Year Assessed: | 2009 | |||||||||||||||
| Assessor/s | BirdLife International | |||||||||||||||
| Evaluator/s: | Bird, J., Butchart, S.(BirdLife International) | |||||||||||||||
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Justification: This species has a very 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 increasing, 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 very 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. |
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| History: |
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| Countries: |
Native:
Algeria; Bahamas; Belgium; Canada; Cape Verde; Denmark; Faroe Islands; France; Gambia; Germany; Gibraltar; Greece; Greenland; Guinea-Bissau; Iceland; Ireland; Israel; Italy; Lebanon; Libyan Arab Jamahiriya; Macedonia, the former Yugoslav Republic of; Malta; Mauritania; Mexico; Morocco; Netherlands; Norway; Portugal; Russian Federation; Saint Pierre and Miquelon; Senegal; Sierra Leone; Spain; Sweden; Tunisia; Turkey; Turks and Caicos Islands; United Kingdom; United States; Western Sahara
Vagrant:
Austria; Bulgaria; Croatia; Cuba; Cyprus; Czech Republic; Egypt; Estonia; Finland; Kazakhstan; Latvia; Lithuania; Luxembourg; Poland; Svalbard and Jan Mayen; Syrian Arab Republic; Trinidad and Tobago
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| Population: | del Hoyo et al. (1992) estimated the global population to number 526,000 individuals. In Europe, the breeding population is estimated to number 300,000-310,000 breeding pairs, equating to 900,000-930,000 individuals (BirdLife International 2004). Europe forms 75-94% of the global range, so a revised estimate of the global population size is 950,000-1,200,000 individuals, although further validation of this estimate is needed. |
| Systems: | Marine |
| Citation: | BirdLife International 2009. Morus bassanus. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on 09 February 2010. |
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