Conservation of White-tailed tailed Eagle in Slovakia

Transcription

1 Conservation of White-tailed tailed Eagle in Slovakia Protection of White-Tailed Tailed-Eagle in the Danube-valley valley conference, Szekszárd, 18th-19th 19th of October 2011

2 Conservation of White-tailed tailed Eagle in Slovakia Distribution Population size & seasonal occurence Habitats preferences Conservation status and main threats Research and conservation actions

3 Distribution of the WTE population

4 Distribution of the WTE population

5 Distribution of the WTE population

6 Distribution of the WTE population

7 Distribution of the WTE population

8 Population size 1964 last breeding 90.-ties increase 1997 breeding again wintering ind. Year Nr. of pairs Nr. of juveniles (1) (3) together (3) 0 ( ) (3) (1) (2) 4 together (4) (3) (4)

9 Habitat preferences forest habitats along large rivers, water bodies high-trunk natural forests poplar + willow forest edges, sparse forest stands

10 23-26 m Tree species used for building of nests Locality Tree species Podunajské Biskupice Populus nigra (1) Čunovo Populus euroamericana (1) Vojka nad Dunajom Populus nigra (1) Gabčíkovo Populus euroamericana (3) Baka P. nigra (1), P. euroamericana (1) Kľúčovec Populus euroamericana (1) Trávnik Populus alba / P. canescens (1)

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17 Conservation status and history Nr. 543/2002 The nature and landscape protection act Nr. 24/2002 The announcement of the Ministry of Environment categorizing WTE as a species of European importance Nr. 15/ 2005 Law on protection of wild animals and wild plants, by regulating trade therein (CITES) critically endangered in SK (2001) 4 315,20 Ramsar site (1993) Protected Landscape Area (1998) Site of Community Importance Important Bird Area Special Protection Area (2008)

18 in the past WTE as pestilential bird shooting possible the whole year systematic protection since 50.-ties NNR Island of the White-tailed Eagle (1953)

19 Main threats constant reducing of suitable nesting and feeding habitats: - inappropriate forestry management - deterioration of water regime disturbance during breeding season (non regulated sport and tourism activities,...) illegal shooting poisoning (carbofuran,...)

20 Winter counting along the Danube yearly since 2002 (up to 100 people) end of January between Devín (rk 1882) and Štúrovo/Estergom (rk 1715) co-operation of the Comenius University, State Nature Conservancy, BROZ, Raptor Protection of Slovakia, SOS/BirdLife Slovakia + many other volunteers, observers from Hungary 2 methods: a) low-density river sections (rk ), eagle densities estimated from line transects b) high-density sections (rk ), censuses conducted from adjacent stationary counting points

21 Evaluation of data from winter counting For each observed specimen or group of WTEs: number of registration start and end time of each observation (to the minute) age (adult, juvenile/subadult, unspecified age) additional information (e.g. group size, behaviour) location and flight direction with assigned number recorded on a map data plotted on a central map since 2004 mapped in GIS the number of wintering White-tailed Eagles estimated after comparing the results from all points and transects with respect to registration time, age and flight direction of the observed birds in order to eliminate double counts

22 Distribution of wintering population in the whole Slovakia

23 Promotion of WTE during winter counting

24 Research activities constant monitoring of the nesting population since 2004 ringing collecting of samples (parasites, blood, feathers) food analysis articles published

25 Research activities constant monitoring of the nesting population since 2004 ringing collecting of samples (parasites, blood, feathers) food analysis articles published Photo: Chavko Photo: Dúbravský

26 Research activities constant monitoring of the nesting population since 2004 ringing collecting of samples (parasites, blood, feathers) food analysis articles published Chavko J. & Š. Danko. Orliak morský (Haliaeetus ablicilla). Správa za rok Dravce a sovy (4): 7. Chavko J Orliak morský (Haliaeetus ablicilla) In: Danko Š., A. Darolová, A. Krištín (eds.) Rozšírenie vtákov na Slovensku Vydavateľstvo veda, Bratislava. Bohuš M., J. Lengyel & P. Rác. The White-tailed Eagle (Haliaeetus albicilla) in Slovakia. Der Seeadler im Herzen Europas - Tagungsband der WWF Österreich Seeadler Konferenz von November 2007 in Illmitz - Denisia 27: 172 pp. Bohuš M. (1996): Orliak morský (Haliaeetus albicilla) v Podunajsku súčasný stav a perspektívy. Buteo 8: Photo: Chavko Bohuš M., Lengyel J. & M. Váczi (2002): Správa o prvom sčítaní zimujúcich orliakov morských (Haliaeetus albicilla /L./) v úseku Dunaja Devín Štúrovo/Esztergom. Chránené územia Slovenska 53: 14. Bohuš M., Lengyel J. & M. Váczi (2003): Druhé sčítanie orliakov morských v úseku Dunaja: Devín Štúrovo/Ostrihom. Chránené územia Slovenska 58: Bohuš M., Lengyel J. & M. Váczi (2005): Správa o treťom a štvrtom sčítaní zimujúcich orliakov morských v úseku Dunaja Devín Štúrovo/Esztergom. Chránené územia Slovenska 66: 24. Bohuš M., Lengyel J. & M. Váczi (2007): Sčítanie zimujúcich orliakov morských na Dunaji prvých 5 ročníkov uzavretých. Dravce a sovy 3(1): Bohuš M., P. Rác, Lengyel J. & M. Váczi (2009): Správa zo siedmeho sčítania zimujúcich rliakov morských na Dunaji. Dravce a sovy (5): 22. Photo: Dúbravský

27 Many thanks for the data, information, photos and comments to: And especially to: M. Kúdela, M. Bohuš, V. Prachár, J. Lengyel, P. Rác, S. Harvančík, D.Kepko, M.Behúl, J. Chavko, M.Váczi, A. Dúbravský, L. Deutschová