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 | - | 20-50 individuals | A1 |
| Marbled Teal Marmaronetta angustirostris | NT | winter | - | 50-100 individuals | A1, A4i |
| Ferruginous Duck Aythya nyroca | NT | passage | - | 200-300 individuals | A1 |
| A4iii Species group - waterbirds | n/a | non-breeding | - | 20,000 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) |
| 2009 | very unfavourable | medium | low |
| Was the whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | good | |
| State (condition of the trigger species' populations) | ||||||
|---|---|---|---|---|---|---|
| Scientific name | Common name | Reference population | Actual population | Units | % of population remaining | Result |
| Oxyura leucocephala | White-headed Duck | 1 | 47 | individuals | 100 | favourable |
| Aythya nyroca | Ferruginous Duck | 25 | 86 | individuals | 100 | favourable |
| Species group - waterbirds | A4iii | 20000 | 6345 | females | 32 | 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 | hunting & collecting terrestrial animals - intentional use (species being assessed is the target) | happening now | small area/few individuals (<10%) | slow but significant deterioration | low |
| Climate change and severe weather | drought | likely in long term (beyond 4 years) | majority/most of area/population (50-90%) | slow but significant deterioration | medium |
| Human intrusions and disturbance | recreational activities | happening now | some of area/population (10-49%) | no or imperceptible deterioration | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected-area designation | Management planning | Other conservation action | Result |
| Whole area of site (>90%) covered by appropriate conservation designation | No management plan exists but the management planning process has begun | 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) |
|---|---|---|---|---|
| Barrage Lebna | Wetland Zone of National Importance | 1,147 | protected area overlaps with site | 0 |
| Barrage Lebna | Ramsar Site, Wetland of International Importance | 1,147 | protected area overlaps with site | 0 |
| Habitat (IUCN level 1) | Habitat detail | Extent (% of site) |
|---|---|---|
| Wetlands (inland) | Artificial wetlands | - |
| Land-use | Extent (% of site) |
|---|---|
| water management | - |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Barrage Lebna. Downloaded from
http://datazone.birdlife.org/site/factsheet/barrage-lebna-iba-tunisia on 22/09/2023.
