Data Zone
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 | Current IUCN Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
|---|---|---|---|---|---|
| White-headed Duck Oxyura leucocephala | EN | resident | 1976-1984 | 30 breeding pairs | A1 |
| White-headed Duck Oxyura leucocephala | EN | winter | 1999 | 256 individuals | A1, A4i |
| Ferruginous Duck Aythya nyroca | NT | winter | 1997 | 717 individuals | A1, A4i |
| Ferruginous Duck Aythya nyroca | NT | breeding | 1976-1984 | 600 breeding pairs | A1, A4i |
| Northern Shoveler Spatula clypeata | LC | breeding | 1995 | 8,865 breeding pairs | A4i |
| Gadwall Mareca strepera | LC | breeding | 1998 | 3,220 breeding pairs | A4i |
| A4iii Species group - waterbirds | n/a | breeding | 1991-1999 | 20,000-49,999 individuals | A4iii |
The current IUCN Red List category 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) |
| 2001 | not assessed | high | not assessed |
| Was the whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | medium | |
| 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 - unintentional effects: subsistence/small scale | happening now | majority/most of area/population (50-90%) | moderate to rapid deterioration | high |
| Biological resource use | fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Biological resource use | hunting & collecting terrestrial animals - intentional use (species being assessed is the target) | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Natural system modifications | dams & water management/use - abstraction of surface water (agricultural use) | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected-area designation | Management planning | Other conservation action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
|---|---|---|---|---|
| Parc National d'El-Kala | Parc National | 76,438 | protected area contains site | 2,700 |
| Lac Tonga | Ramsar Site, Wetland of International Importance | 2,700 | protected area overlaps with site | 2,700 |
| El Kala | UNESCO-MAB Biosphere Reserve | 76,438 | protected area contains site | 2,700 |
| Land-use | Extent (% of site) |
|---|---|
| agriculture | - |
| fisheries/aquaculture | - |
| hunting | - |
| nature conservation and research | - |
| tourism/recreation | - |
| water management | - |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Lac Tonga. Downloaded from
http://datazone.birdlife.org/site/factsheet/lac-tonga-iba-algeria on 02/10/2023.
