The site was identified as important in 2001 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species'):Species | Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
---|---|---|---|---|---|
Ruddy Turnstone Arenaria interpres | LC | winter | 1998 | 523 individuals | A4i |
Slender-billed Gull Larus genei | LC | winter | 1998 | 200 individuals | A4i |
Audouin's Gull Larus audouinii | VU | winter | 1998 | 404 individuals | A1, A4i |
Lesser Black-backed Gull Larus fuscus | LC | winter | 1998 | 6,500 individuals | A4i |
Little Tern Sternula albifrons | LC | winter | 1998 | 1,500 individuals | A4i |
Caspian Tern Hydroprogne caspia | LC | breeding | 1997 | 150 breeding pairs | A4i |
Caspian Tern Hydroprogne caspia | LC | non-breeding | 1998 | 2,100 individuals | A4i |
Sandwich Tern Thalasseus sandvicensis | LC | winter | 1998 | 2,000 individuals | A4i |
Royal Tern Thalasseus maximus | LC | breeding | 2000 | 7,360 breeding pairs | A4i |
Royal Tern Thalasseus maximus | LC | non-breeding | 1997 | 5,100 individuals | A4i |
A4iii Species group - waterbirds | n/a | breeding | 2000 | 20,000-49,999 individuals | A4iii |
The current IUCN Red List category (shown above) may differ from that which was valid at the time of IBA criteria assessment (2001).
IBA conservation assessment | |||
---|---|---|---|
Year of assessment (most recent) | State (condition) | Pressure (threat) | Response (action) |
2022 | very unfavourable | high | low |
Was the whole site assessed? | State assessed by | Accuracy of information | |
no | population | good |
State (condition of the trigger species' populations) | ||||||
---|---|---|---|---|---|---|
Scientific name | Common name | Reference population | Actual population | Units | % of population remaining | Result |
Arenaria interpres | Ruddy Turnstone | 523 | 17 | individuals | 4 | very unfavourable |
Larus genei | Slender-billed Gull | 200 | 33 | individuals | 17 | very unfavourable |
Larus audouinii | Audouin's Gull | 404 | 80 | individuals | 20 | very unfavourable |
Larus fuscus | Lesser Black-backed Gull | 6500 | 309 | individuals | 5 | very unfavourable |
Sternula albifrons | Little Tern | 1500 | 99 | individuals | 7 | very unfavourable |
Hydroprogne caspia | Caspian Tern | 2100 | 234 | individuals | 12 | very unfavourable |
Thalasseus sandvicensis | Sandwich Tern | 2000 | 25 | individuals | 2 | very unfavourable |
Thalasseus maximus | Royal Tern | 5100 | 141 | individuals | 3 | very unfavourable |
Species group - waterbirds | A4iii | 20000 | 938 | individuals | 5 | very unfavourable |
Pressure (threats to the trigger species and/or their habitats) | |||||
---|---|---|---|---|---|
Threat level 1 | Threat level 2 | Timing | Scope | Severity | Result |
Biological resource use | fishing & harvesting aquatic resources - intentional use: lg scale | happening now | majority/most of area/population (50-90%) | moderate to rapid deterioration | high |
Human intrusions and disturbance | recreational activities | happening now | majority/most of area/population (50-90%) | moderate to rapid deterioration | high |
Human intrusions and disturbance | work and other activities | happening now | majority/most of area/population (50-90%) | moderate to rapid deterioration | high |
Response (conservation actions taken for the trigger species and/or their habitats) | |||
---|---|---|---|
Protected-area designation | Management planning | Other conservation action | Result |
Most of site (50-90%) covered (including the most critical parts for important bird species) | A management plan exists but it is out of date or not comprehensive | Some limited conservation initiatives are in place | low |
Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
---|---|---|---|---|
Tanji | Bird Reserve | 612 | protected area overlaps with site | 500 |
Land-use | Extent (% of site) |
---|---|
forestry | - |
hunting | - |
nature conservation and research | - |
tourism/recreation | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tanji River (Karinti) Bird Reserve. Downloaded from
https://datazone.birdlife.org/site/factsheet/tanji-river-(karinti)-bird-reserve-iba-gambia on 19/03/2024.