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Location Tunisia
Central coordinates 10o 13.00' East  36o 50.00' North
IBA criteria A1, A4i
Area 148 ha
Altitude 134 m
Year of IBA assessment 2001

Association "Les Amis des Oiseaux"

Site description Mornaguia reservoir is a recently built reservoir, located 12 km west of Tunis and surrounded by agricultural land. Water is pumped into it from dams in the national water grid, so that water-levels fluctuate considerably and there is little natural vegetation except where a stream flows in; here stands of Phragmites australis, Typha angustifolia, Inula viscosa and Juncus species occur. As one of the few freshwater lakes in the area it attracts a variety of migrants, especially in late summer when other sites are dry.

Key Biodiversity See Box for key species. Oxyura leucocephala is present throughout the year and may breed, although numbers are often highest in late summer and autumn, suggesting through-passage. Marmaronetta angustirostris is regularly present in summer and probably breeds, as do Tachybaptus ruficollis, Podiceps cristatus and Fulica atra. In late summer there are considerable concentrations of waders, Glareola pratincola, Chlidonias niger and Sterna nilotica; S. nilotica and G. pratincola may breed in favourable years. Up to several hundred Aythya nyroca occur in late summer, presumably migrants stopping to moult, and a few (up to 20) stay through the winter. Other wintering waterbirds include Aythya ferina, Anas platyrhynchos, A. strepera, A. acuta, A. crecca and Fulica atra.

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 breeding  1999  8-30 adults only  poor  A1, A4i  Vulnerable 
White-headed Duck Oxyura leucocephala breeding  1999  12-220 adults only  unknown  A1, A4i  Endangered 

IBA Monitoring

2010 medium favourable not assessed
Good - based on reliable and complete / representative data

Agriculture and aquaculture livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now small area/few individuals (<10%) no or imperceptible deterioration low
Climate change and severe weather drought likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium

Wetlands (inland)   0 0 moderate (70-90%) moderate (70-90%) unfavourable

Oxyura leucocephala White-headed Duck 12 73 individuals 100 favourable

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Barrage Mornaguia Game Reserve 0 protected area contains site 148  


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

Land use

Land-use Extent (% of site)
hunting minor
water management major
rangeland/pastureland minor

References Gaultier (1987b, 1988a), Hughes et al. (1997), Karem et al. (1997).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Mornaguia reservoir. Downloaded from on 22/10/2016

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