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Location Uzbekistan, Tashkent
Central coordinates 69o 6.47' East  40o 32.01' North
IBA criteria A1, A3, A4i
Area 1,185 ha
Altitude 160 - 240m
Year of IBA assessment 2006

Uzbekistan Society for the Protection of Birds (Affiliate)



Site description The Dalverzin Government Forestry and Hunting Concession is situated in the bottomland of the middle reaches of the Syrdarya river, 120 km south of Tashkent and 20 km north of Bekabad town. The area of the proposed IBA is 6,000 ha, more than 70% (4,200 ha) is tugay (riverside) forest, more than 20% is rice and wheat fields, and 5-7 % is waterbodies (the large Kolgansyr and Krivoye Lakes, both of which freeze in winter, and the Urtokly canal system flowing into the Syrdarya). The site, which is used for game husbandry, has protection status since 2000, and is subject to the regulations relating to the management of nature reserves, national parks and game husbandry areas of the Republic of Uzbekistan. Main species hunted are Lepus (capensis) tolai, Sus scrofa, Canis aureus, Phasianus colchicus and ducks. Food and cover crops are grown to benefit Phasianus colchicus and Sus scrofa. This area is also used as a recreation zone by people from Tashkent and the Bekebad district of Tashkent region. From an ornithological point of view, Dalverzin is interesting in autumn and winter (October – March) when many waterfowl concentrate there. In summer only the biome-restricted species are of interest. Colonies of Ciconia ciconia are situated 3-5 km outside the game husbandry area. These number more than 100 nests and birds feed on the IBA both in the breeding and wintering seasons.

Key Biodiversity From an ornithological point of view, Dalverzin is interesting in autumn and winter (October – March) when many waterfowl concentrate there. In summer only the biome-restricted species are of interest. Colonies of Ciconia ciconia are situated 3-5 km outside the game husbandry area. These number more than 100 nests and birds feed on the IBA both in the breeding and wintering seasons. This colony formed 2-3 years ago. Until recently Otis tarda nested at Dalverzin but has now disappeared (Meklenburtsev, 1990). The breeding and hunting of pheasants is one of the main directions of the concession.

Non-bird biodiversity: The most important mammals are Canis aureus and Sus scrofa, whose number is rising. It is significant that from Dalverzin a special subspecies of the Great Gerbil - Rhombomys opimus dalversinica - was described. Flora is represented by dense tugay forest along the Syrdarya river, introduced broadleaved trees occur near buildings and along canals, and there are large areas of tamarisk and other bushes.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Lesser White-fronted Goose Anser erythropus winter  1996-2006  5-15 adults only  poor  A1  Vulnerable 
Mallard Anas platyrhynchos winter  2006  2,500-10,408 adults only  good  A4i  Least Concern 
Ferruginous Duck Aythya nyroca winter  1996-2006  12-60 adults only  good  A1  Near Threatened 
White Stork Ciconia ciconia winter  2006  40-150 adults only  medium  A4i  Least Concern 
Great White Egret Ardea alba winter  2006  50-250 adults only  good  A4i  Least Concern 
Great Cormorant Phalacrocorax carbo winter  2006  486-1,200 adults only  good  A4i  Least Concern 
Greater Spotted Eagle Clanga clanga winter  2006  3-9 adults only  good  A1  Vulnerable 
Pallid Scops-owl Otus brucei breeding  2006  6-12 adults only  good  A3  Least Concern 
White-winged Woodpecker Dendrocopos leucopterus breeding  2006  8-20 adults only  good  A3  Least Concern 
Great Tit Parus major breeding  2006  200-400 adults only  good  A3  Least Concern 

IBA Monitoring

2006 very high not assessed medium
unset
Good - based on reliable and complete / representative data

Agricultural expansion and intensification annual & perennial non-timber crops - small-holder farming happening now some of area/population (10-49%) no or imperceptible deterioration low
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) no or imperceptible deterioration low
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) no or imperceptible deterioration low
Invasive and other problematic species and genes invasive non-native/alien species/diseases - unspecified species happening now whole area/population (>90%) very rapid to severe deterioration very high
Natural system modifications other ecosystem modifications likely in short term (within 4 years) some of area/population (10-49%) very rapid to severe deterioration high
Over-exploitation, persecution and control of species logging & wood harvesting - unintentional effects: subsistence/small scale past (and unlikely to return) and no longer limiting some of area/population (10-49%) slow but significant deterioration low

Whole area of site (>90%) covered by appropriate conservation designation  No management planning has taken place  The conservation measures needed for the site are being comprehensively and effectively implemented  medium 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest   30%
Shrubland   30%
Wetlands (inland)   10%
Artificial - terrestrial   30%

Land use

Land-use Extent (% of site)
agriculture 30%
fisheries/aquaculture 10%
forestry 100%
hunting 100%
nature conservation and research 100%
tourism/recreation 30%

Protection status The proposed IBA is divided into several protection zones: central (750 ha), forestry (1,100ha), reserve (550 ha); Kata Aral (800 ha), Krivoe (750 ha); Putsatovskaya (750 ha); and Jidali (1,000 ha).

References Mitropolskiy M.G. Reports of the counting waterfowls at April 2004 (manuscript) Mitropolskiy M.G. Reports of the counting waterfowls at April 2006 (manuscript) Mitropolskiy M.G., Soldatov V.A., Atakhojaev A.A., Kashkarov R.D. Report of the autumn bird counting, November 2006. (manuscript) Mitropolskiy O.V. , Ayupov A.N., Mitropolskiy M.G., Kashkarov R.D., Soldatov V.A., Atakhojaev A.A. Report of the winter bird counting, January-March & November-December 2006. (manuscript) Mitropolskiy M.G. The Ferruginous Duck in Tashkent region // Materials for given more precise definition to species status in IUCN List. Mitropolskiy M.G., Kashkarov R.D. Greater Spotted Eagle and White-tailed Sea-eagle in Tashkent region //Raptors and their conservation. Nijniy-Novgorod, 2007 (in print) Mitropolskiy O.V. , Mitropolskiy M.G., Kashkarov R.D. Wintering of shorebirds in Tashkent region // Materials of shorebirds in North Eurasia. Moscow, 2007 (in print) Humerology collection of Mitropolskiy family. Results of data analysis from Tashkent region during 1996-2006 period.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Dalverzin State Forestry and Hunting Management Area. Downloaded from http://www.birdlife.org on 22/12/2014

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