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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | A2ace+3ce+4ace | A2ace+3ce+4ace; C1 |
Year | Category | Criteria |
---|---|---|
2018 | Endangered | A2ace+3ce+4ace |
2016 | Endangered | A2ace+3ce+4ace |
2013 | Endangered | A2ace+3ce+4ace |
2012 | Endangered | A2ace+3ce+4ace |
2010 | Endangered | A2a,c,e; A3c,e; A4a,c,e |
2008 | Endangered | A2a,c,e; A3c,e; A4a,c,e |
2006 | Endangered | |
2004 | Endangered | |
2000 | Vulnerable | |
1994 | Lower Risk/Near Threatened | |
1988 | Near Threatened |
Migratory status | not a migrant | Forest dependency | does not normally occur in forest |
Land-mass type |
continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 402,000 km2 | medium |
Extent of Occurrence (non-breeding) | 476,000 km2 | medium |
Area of Occupancy (breeding/resident) | 9,300 km2 | |
Number of locations | 45 | - |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 5000 mature individuals | good | estimated | 2015 |
Population trend | decreasing | good | estimated | 1992-2010 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 62.8% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 62.8% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 62.8% | - | - | - |
Generation length | 7.5 years | - | - | - |
Number of subpopulations | 2-100 | - | - | - |
Percentage of mature individuals in largest subpopulation | 80-90% | - | - | - |
Population justification: The total breeding population was estimated at 2,500 pairs (5,000 mature individuals) in 2015. This roughly equates to 7,500 individuals in total.
Trend justification: The overall rate of decline between 1990 and 2006 was 4.3% per year (Kemper et al. 2007), equivalent to a decrease of 62.8% over three generations (22.5 years).
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Namibia | extant | native | yes | |||
South Africa | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Namibia | Ichaboe Island |
Namibia | Lüderitz Bay islands |
Namibia | Mercury Island |
Namibia | Namib-Naukluft Park |
Namibia | Possession Island |
South Africa | Dassen Island |
South Africa | Dyer Island Nature Reserve |
South Africa | Robben Island |
South Africa | West Coast National Park and Saldanha Bay islands |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Marine Coastal/Supratidal | Sea Cliffs and Rocky Offshore Islands | major | breeding |
Marine Intertidal | Rocky Shoreline | major | breeding |
Marine Neritic | Pelagic | major | resident |
Altitude | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Biological resource use | Fishing & harvesting aquatic resources - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
|
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Climate change & severe weather | Storms & flooding | Timing | Scope | Severity | Impact | ||||
Past, Likely to Return | Minority (<50%) | Slow, Significant Declines | Past Impact | ||||||
|
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Energy production & mining | Mining & quarrying | Timing | Scope | Severity | Impact | ||||
Past, Likely to Return | Minority (<50%) | Slow, Significant Declines | Past Impact | ||||||
|
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Human intrusions & disturbance | Work & other activities | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Pasteurella multocida | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
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Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Arctocephalus pusillus | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
|
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Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Larus dominicanus | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
|
|||||||||
Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Pelecanus onocrotalus | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Rapid Declines | Medium Impact: 6 | ||||||
|
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Pollution | Industrial & military effluents - Oil spills | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Residential & commercial development | Commercial & industrial areas | Timing | Scope | Severity | Impact | ||||
Future | Minority (<50%) | Negligible declines | No/Negligible Impact: 2 | ||||||
|
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Residential & commercial development | Tourism & recreation areas | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
Purpose | Scale |
---|---|
Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Bank Cormorant Phalacrocorax neglectus. Downloaded from
https://datazone.birdlife.org/species/factsheet/bank-cormorant-phalacrocorax-neglectus on 22/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/11/2024.