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Location Turkey, Izmir
Central coordinates 26o 52.00' East  38o 32.00' North
IBA criteria A1, A4i, A4iii, B1i, B2, B3
Area 26,160 ha
Altitude 0 - 80m
Year of IBA assessment 2004

Doga Dernegi (Partner Designate)

Site description An extensive coastal wetland situated 25 km north-west of Ýzmir. Shoals and islands separate four saline lagoons (totalling 3,450 ha) from the sea. The site also includes 5,000 ha of saltmarsh and 650 ha of freshwater marsh. Dry grassland and arable land occur north of the commercial saltpans. A fishing cooperative operates in the çilazmak lagoon; the IBA is a popular weekend destination from Ýzmir.

Key Biodiversity The IBA is important for breeding and wintering waterbirds. Sterna sandvicensis bred in 1996 (53 pairs)˜the first Turkish breeding record.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Red-breasted Goose Branta ruficollis winter  2002  119 individuals  A1, B2  Endangered 
Ruddy Shelduck Tadorna ferruginea winter  250-502 individuals  A4i, B1i  Least Concern 
Common Shelduck Tadorna tadorna winter  475-932 individuals  B1i  Least Concern 
Common Teal Anas crecca winter  1999  11,532 individuals  B1i  Least Concern 
Greater Flamingo Phoenicopterus roseus winter  1996  5,000-21,300 individuals  A4i, B1i  Least Concern 
Greater Flamingo Phoenicopterus roseus breeding  3,000 breeding pairs  A4i, B1i, B2  Least Concern 
Eurasian Spoonbill Platalea leucorodia passage  101-150 individuals  B1i  Least Concern 
Egretta garzetta passage  350-1,120 individuals  A4i, B1i  Not Recognised 
Dalmatian Pelican Pelecanus crispus breeding  35-87 breeding pairs  A1, A4i, B1i, B2  Vulnerable 
Dalmatian Pelican Pelecanus crispus winter  350-665 individuals  A1, A4i, B1i  Vulnerable 
Pygmy Cormorant Microcarbo pygmaeus winter  1993  85-1,000 individuals  A1, B1i  Least Concern 
Great Cormorant Phalacrocorax carbo winter  1,000-2,000 individuals  B1i  Least Concern 
Lesser Kestrel Falco naumanni breeding  25-35 breeding pairs  A1  Least Concern 
Burhinus oedicnemus breeding  30-35 breeding pairs  B2  Not Recognised 
Himantopus himantopus breeding  350-1,073 individuals  A4i, B1i  Not Recognised 
Pied Avocet Recurvirostra avosetta passage  2,000-2,400 individuals  A4i, B1i  Least Concern 
Pied Avocet Recurvirostra avosetta winter  350-620 individuals  B1i  Least Concern 
Charadrius alexandrinus winter  1993  532-809 individuals  B1i  Not Recognised 
Charadrius alexandrinus breeding  1,000 breeding pairs  A4i, B1i, B2  Not Recognised 
Spur-winged Lapwing Vanellus spinosus breeding  30-35 breeding pairs  B2  Least Concern 
Little Stint Calidris minuta passage  1,550-2,500 individuals  B1i  Least Concern 
Dunlin Calidris alpina passage  2,000-5,000 individuals  B1i  Least Concern 
Dunlin Calidris alpina winter  1,082-3,421 individuals  B1i  Least Concern 
Collared Pratincole Glareola pratincola breeding  40-50 breeding pairs  B2  Least Concern 
Larus michahellis winter  6,100-40,000 individuals  A4i, B1i  Not Recognised 
Black-headed Gull Larus ridibundus winter  1999  30,990 individuals  B1i  Least Concern 
Mediterranean Gull Larus melanocephalus breeding  250-900 individuals  B3  Least Concern 
Caspian Tern Hydroprogne caspia breeding  65-100 breeding pairs  A4i, B1i, B2  Least Concern 
Sandwich Tern Thalasseus sandvicensis passage  1997  1,450 individuals  B1i  Least Concern 
Sandwich Tern Thalasseus sandvicensis breeding  50-60 breeding pairs  B2  Least Concern 
Common Tern Sterna hirundo breeding  2,300-2,600 breeding pairs  B1i  Least Concern 
Little Tern Sternula albifrons breeding  500-600 breeding pairs  A4i, B1i, B2  Least Concern 
A4iii Species group - waterbirds winter  20,099-126,148 individuals  A4iii   

IBA Monitoring

2011 very high very unfavourable medium
Good - based on reliable and complete / representative data

Agricultural expansion and intensification annual & perennial non-timber crops - shifting agriculture past (and unlikely to return) and no longer limiting some of area/population (10-49%) moderate to rapid deterioration low
Natural system modifications dams & water management/use - dams (size unknown) likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Over-exploitation, persecution and control of species hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now small area/few individuals (<10%) no or imperceptible deterioration low
Pollution agricultural & forestry effluents - type unknown/unrecorded happening now some of area/population (10-49%) moderate to rapid deterioration high
Residential and commercial development housing and urban areas happening now majority/most of area/population (50-90%) very rapid to severe deterioration very high

Branta ruficollis Red-breasted Goose 60 0 - 0 very unfavourable
Tadorna ferruginea Ruddy Shelduck 752 1940 - 100 favourable
Tadorna tadorna Common Shelduck 1388 2867 - 100 favourable
Anas crecca Common Teal 5056 11633 - 100 favourable
Podiceps nigricollis Black-necked Grebe 456 552 - 100 favourable
Phoenicopterus roseus Greater Flamingo 19995 22676 - 100 favourable
Platalea leucorodia Eurasian Spoonbill 34 66 - 100 favourable
Egretta garzetta 60 0 - 0 very unfavourable
Pelecanus crispus Dalmatian Pelican 280 304 - 100 favourable
Microcarbo pygmaeus Pygmy Cormorant 261 535 - 100 favourable
Phalacrocorax carbo Great Cormorant 1101 826 - 76 near favourable
Haematopus ostralegus 19 44 - 100 favourable
Himantopus himantopus 5 6 - 100 favourable
Recurvirostra avosetta Pied Avocet 667 667 - 100 favourable
Charadrius alexandrinus 809 324 - 41 unfavourable
Calidris canutus Red Knot 70 0 - 0 very unfavourable
Calidris minuta Little Stint 2036 830 - 41 unfavourable
Calidris alpina Dunlin 8256 8256 - 100 favourable
Larus ridibundus Black-headed Gull 30990 6198 - 20 very unfavourable
Thalasseus sandvicensis Sandwich Tern 9 7 - 78 near favourable

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  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  medium 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Gediz Delta Wetlands of International Importance (Ramsar) 14,900 protected area contained by site 14,900  
Gediz Deltasi SIT (Law on Protection of Cultural and Natural Assets No. 2863) 8,000 protected area contained by site 8,000  


IUCN habitat Habitat detail Extent (% of site)
Grassland Steppes and dry calcareous grassland  30%
Coastline Lagoons; Salt marshes; Sand dunes & beaches  50%
Artificial - terrestrial Arable land  20%

Land use

Land-use Extent (% of site)
urban/industrial/transport 20%
fisheries/aquaculture 30%
agriculture 10%
not utilised 40%
tourism/recreation -

Protection status National Partial International Partial8,000 ha of IBA covered by Permanent Wildlife Reserve (Gediz Deltasý, 8,000 ha). 8,000 ha of IBA covered by SÝT (Gediz Deltasý, 8,000 ha). 15,000 ha of IBA covered by Ramsar Site (Gediz, 15,000 ha).

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Recommended citation  BirdLife International (2015) Important Bird Areas factsheet: Gediz Delta. Downloaded from on 02/04/2015

To provide new information to update this factsheet or to correct any errors, please email BirdLife