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Results of the Monitoring of Eagle Numbers in Belarus

Dombrovski V.C., Institute of Zoology, Minsk, Belarus


Belarus


Actual number of Golden Eagle population in Belarus


В 2007-2009 гг. было проверено 17 болотных массивов Выявлено только 4 пары беркутов

Современная численность вида в стране составляет 4-5 пар


Greater Spotted Eagle population in Belarus: actual numbers and trends


Monitoring of Greater Spotted Eagle in Belarus

Since 2000 monitoring of 30-68 pairs of GSE all over Belarus


Number and distribution of Greater Spotted Eagle in Belarus

Division of Belarus by regions geobotanic

Breeding density of GSE in Belarus by region geobotanic Density, pairs/1000 ะบm2: 0.1-0.4

0,5-1,4

1,5-3,0

150-200 breeding pairs of GSE in Belarus (including mixt pairs) in 1999-2003

3,1-5,0


Breeding density depending on biotope composition in study plot Breeding density of GSE in Belarus vary from 0 to 5 (хср=1,0 + 1,4) pairs/100 кm2

4.25 pairs/100 кm2

N=8

Waterlogged forest

1.6 pairs/100 кm2

Fen mires Bog Dry forest Agricultural area

N=19 0,1 pairs/100 кm

N=30

2

Other


Monitoring of Greater Spotted Eagle in Belarus

2000-2005

> 10 pairs 6-9 pairs 3-5 pairs 1-2 pairs

2010

During last 10 years number of GSE pairs in threatened sites decrease by 33%


Схема территорий важных для птиц


Заказник республиканского значения «Ольманские болота»

Площадь 94000 га Крупнейший естественный лесоболотный массив Крупнейшая гнездовая группировка большого подорлика – 18-20 пар Распределение гнездящихся пар на территории заказника


In natural habitat number of Greater Spotted Eagle is stable during last 10 years


The current species population in Belarus is estimated at 120–160 pairs


Lesser Spotted Eagle in Belarus

3200-3600 breeding pairs


Localization of monitoring plots in Belarus

Под наблюдением 40 пар или 1% белорусской популяции вида


Last estimation of Lesser Spotted Eagle numbers was ade in 2000-2003

There is no real monitoring of species in Belarus

Lesser Spotted Eagle is less studied Eagle species in elarus


Aquila pomarina x clanga


Frequency of hybridization between the Lesser and Greater Spotted Eagles in Belarus Between 1999 and 2011 in Belarus, 96 cases of mixed breeding were observed. Among the 35 mixed couples checked, there were the following compositions: Aquila clanga x A. pomarina (n=11), A.clanga х Hybrid (n=6) A.pomarina х Hybrid (n=18)

Percentage of mixed couples from the total number of couples including GSE Breeding density, pairs/1000 кm2: 0.1-0.4

0,5-1,4

1,5-3,0

3,1-5,0


Спасибо за внимание ! Thank you!


«Результаты мониторинга численности орлов в Беларуси»