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The site was identified as important in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Red-breasted Goose Branta ruficollis	VU	winter	2001-2002	94-119 individuals	A1, B2
Common Shelduck Tadorna tadorna	LC	winter	2016	min 2,500 individuals	B1i
Ruddy Shelduck Tadorna ferruginea	LC	winter	-	250-502 individuals	A4i, B1i
Common Teal Anas crecca	LC	winter	1999	11,532 individuals	B1i
Greater Flamingo Phoenicopterus roseus	LC	breeding	2016	14,000-18,000 breeding pairs	A4i, B1i, B2
Greater Flamingo Phoenicopterus roseus	LC	winter	1990-1996	5,000-21,300 individuals	A4i, B1i
Eurasian Spoonbill Platalea leucorodia	LC	passage	-	101-150 individuals	B1i
Little Egret Egretta garzetta	LC	passage	-	350-1,120 individuals	A4i, B1i
Dalmatian Pelican Pelecanus crispus	NT	winter	-	350-665 individuals	A1, A4i, B1i
Dalmatian Pelican Pelecanus crispus	NT	breeding	2016	min 140 breeding pairs	A1, A4i, B1i, B2
Pygmy Cormorant Microcarbo pygmaeus	LC	winter	1990-1993	85-1,000 individuals	B1i
Great Cormorant Phalacrocorax carbo	LC	winter	-	1,000-2,000 individuals	B1i
Eurasian Thick-knee Burhinus oedicnemus	LC	breeding	-	30-35 breeding pairs	B2
Pied Avocet Recurvirostra avosetta	LC	passage	-	2,000-2,400 individuals	A4i, B1i
Pied Avocet Recurvirostra avosetta	LC	winter	-	350-620 individuals	B1i
Black-winged Stilt Himantopus himantopus	LC	breeding	-	350-1,073 individuals	A4i, B1i
Kentish Plover Charadrius alexandrinus	LC	breeding	1989-1996	1,000 breeding pairs	A4i, B1i, B2
Kentish Plover Charadrius alexandrinus	LC	winter	1993	532-809 individuals	B1i
Spur-winged Lapwing Vanellus spinosus	LC	breeding	-	30-35 breeding pairs	B2
Dunlin Calidris alpina	NT	passage	-	2,000-5,000 individuals	B1i
Dunlin Calidris alpina	NT	winter	-	1,082-3,421 individuals	B1i
Little Stint Calidris minuta	LC	passage	-	1,550-2,500 individuals	B1i
Collared Pratincole Glareola pratincola	LC	breeding	-	40-50 breeding pairs	B2
Black-headed Gull Larus ridibundus	LC	winter	1999	30,990 individuals	B1i
Mediterranean Gull Larus melanocephalus	LC	breeding	-	250-900 individuals	B3
Caspian Gull Larus cachinnans	LC	winter	2003	6,100-40,000 individuals	A4i, B1i
Little Tern Sternula albifrons	LC	breeding	-	500-600 breeding pairs	A4i, B1i, B2
Caspian Tern Hydroprogne caspia	LC	breeding	-	65-100 breeding pairs	A4i, B1i, B2
Common Tern Sterna hirundo	LC	breeding	-	2,300-2,600 breeding pairs	B1i
Sandwich Tern Thalasseus sandvicensis	LC	passage	1997	1,450 individuals	B1i
Sandwich Tern Thalasseus sandvicensis	LC	breeding	-	50-60 breeding pairs	B2
A4iii Species group - waterbirds	n/a	winter	-	20,099-126,148 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2016) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2016. The most recent assessment (2020) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Invasive and other problematic species and genes	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Pollution	happening now	some of area/population (10-49%)	very rapid to severe deterioration	high
Human intrusions and disturbance	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Agricultural expansion and intensification	happening now	small area/few individuals (<10%)	very rapid to severe deterioration	low
Residential and commercial development	happening now	small area/few individuals (<10%)	moderate to rapid deterioration	low
Natural system modifications	happening now	small area/few individuals (<10%)	moderate to rapid deterioration	low
Biological resource use	happening now	small area/few individuals (<10%)	slow but significant deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	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

Year	Protected Area	Designation	% overlap with IBA
-	Gediz Deltasi Birinci Derece Dogal Sit Alani	SIT (Law on Protection of Cultural and Natural Assets No. 2863)	100
1981	Gediz Deltasi	SIT (Law on Protection of Cultural and Natural Assets No. 2863)	31
1998	Gediz Delta	Ramsar Site, Wetland of International Importance	57

Habitat1	Habitat detail	% of IBA
Grassland	Humid grasslands	25
Marine Intertidal		25
Marine Coastal/Supratidal		21
Artificial/Aquatic & Marine		20
Artificial/Terrestrial	Arable land	5
Shrubland	Sclerophyllous scrub, garrigue and maquis	4

1. IUCN Habitat classification.

Land use	% of IBA
fisheries/aquaculture	40
rangeland/pastureland	20
agriculture	15
urban/industrial/transport	10
military	5
tourism/recreation	5
nature conservation and research	5

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Gediz Delta (Türkiye). Downloaded from https://datazone.birdlife.org/site/factsheet/gediz-delta-iba-türkiye on 22/11/2024.