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Location Tunisia, Nabeul
Central coordinates 10o 56.00' East  36o 42.00' North
IBA criteria A1, A4i, A4iii
Area 1,000 ha
Altitude 43 m
Year of IBA assessment 2001

Association "Les Amis des Oiseaux"

Site description Lebna is the largest and probably the most important of the artificial reservoirs of the northern Cap Bon peninsula, with the most extensive vegetation along the two streams which flow into it and which are dammed; there are extensive stands of Phragmites communis, Typha angustifolia and Juncus spp., which provide nesting habitat and cover for many waterbirds.

Key Biodiversity See Box for key species. Regular breeding species include Oxyura leucocephala (20–50 birds also winter) and Marmaronetta angustirostris (50–100 birds winter), as well as Porphyrio porphyrio, together with species such as Tachybaptus ruficollis, Podiceps cristatus and Fulica atra. Elaneus caeruleus breeds in the vicinity. Being situated near the tip of Cap Bon, Lebna, to some extent, replaces the drained former marsh of Garaet el Haouaria, and attracts a good number and variety of passage waterbirds, including species such as Plegadis falcinellus, Platalea leucorodia, storks, waders and terns. Several hundred Aythya nyroca regularly occur as post-breeding migrants. Wintering waterbirds include Anas platyrhynchos, A. acuta, A. penelope, A. clypeata, A. strepera, Aythya fuligula, A. ferina and Fulica atra, with total numbers of up to 20,000.

Non-bird biodiversity: None known to BirdLife International.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Marbled Teal Marmaronetta angustirostris winter  50-100 individuals  A1, A4i  Vulnerable 
Ferruginous Duck Aythya nyroca passage  200-300 individuals  A1  Near Threatened 
White-headed Duck Oxyura leucocephala resident  20-50 individuals  unknown  A1  Endangered 
A4iii Species group - waterbirds unknown  20,000 individuals  unknown  A4iii   

IBA Monitoring

2009 medium very unfavourable low
Good - based on reliable and complete / representative data

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

Aythya nyroca Ferruginous Duck 25 86 individuals 100 favourable
Oxyura leucocephala White-headed Duck 1 47 individuals 100 favourable
Species group - waterbirds A4iii 20000 6345 females only 32 very unfavourable

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 


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Artificial wetlands  major

Land use

Land-use Extent (% of site)
water management -

References Gaultier (1986, 1987b, 1988a), Hughes et al. (1997), Meininger et al. (1994).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Lebna reservoir. Downloaded from on 24/10/2016

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