The site was identified as internationally important for bird conservation in 2002 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.
Populations meeting IBA criteria ('key species') at the site:Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
---|---|---|---|---|
Greylag Goose Anser anser | LC | passage (1998–2000) | 2,400–10,000 individuals | A4i, B1i, C3 |
Red-crested Pochard Netta rufina | LC | breeding (1996–2000) | 20–40 breeding pairs | B2 |
Common Pochard Aythya ferina | VU | breeding (1996–2000) | 790 breeding pairs | B3 |
Northern Shoveler Spatula clypeata | LC | passage (1998–2002) | 480–1,300 individuals | C3 |
Gadwall Mareca strepera | LC | passage (1998–2002) | 750–950 individuals | A4i, B1i, C3 |
Gadwall Mareca strepera | LC | breeding (1996–2000) | 950–1,000 breeding pairs | A4i, B1i, B2 |
European Nightjar Caprimulgus europaeus | LC | breeding (1998–2002) | 15–30 breeding pairs | C6 |
Black Stork Ciconia nigra | LC | breeding (1998–2002) | 10–15 breeding pairs | B2, C6 |
White Stork Ciconia ciconia | LC | breeding (1996–2000) | 10–15 breeding pairs | B2 |
Black-crowned Night Heron Nycticorax nycticorax | LC | breeding (1998–2002) | 80–120 breeding pairs | B2, C6 |
Great White Egret Ardea alba | LC | passage (1998–2002) | 380 individuals | C2 |
Common Tern Sterna hirundo | LC | breeding (1998–2000) | 34–82 breeding pairs | C6 |
Eurasian Pygmy-owl Glaucidium passerinum | LC | resident (1998–2002) | 100–150 breeding pairs | C6 |
Boreal Owl Aegolius funereus | LC | resident (1998–2002) | 30–50 breeding pairs | C6 |
Tawny Owl Strix aluco | LC | resident (1998–2000) | 100–200 breeding pairs | B3 |
Eurasian Eagle-owl Bubo bubo | LC | resident (1996–2000) | 10–15 breeding pairs | B2 |
European Honey-buzzard Pernis apivorus | LC | breeding (1998–2000) | 10–20 breeding pairs | B3, C6 |
Western Marsh-harrier Circus aeruginosus | LC | breeding (1998–2002) | 50–60 breeding pairs | C6 |
White-tailed Sea-eagle Haliaeetus albicilla | LC | breeding (1998–2002) | 10–15 breeding pairs | A1, C1 |
White-tailed Sea-eagle Haliaeetus albicilla | LC | winter (1998–2000) | 40–50 individuals | A1, C1 |
Common Kingfisher Alcedo atthis | LC | resident (1996–2000) | 20–30 breeding pairs | B2, C6 |
Eurasian Green Woodpecker Picus viridis | LC | resident (1996–2000) | 80–150 breeding pairs | B2 |
Grey-faced Woodpecker Picus canus | LC | resident (1998–2002) | 40–60 breeding pairs | B2, C6 |
Black Woodpecker Dryocopus martius | LC | resident (1998–2002) | 80–100 breeding pairs | C6 |
Middle Spotted Woodpecker Leiopicus medius | LC | resident (1996–2000) | 90–110 breeding pairs | B3 |
Woodlark Lullula arborea | LC | breeding (1998–2002) | 20–30 breeding pairs | C6 |
Collared Sand Martin Riparia riparia | LC | breeding (1996–2000) | 500–1,000 breeding pairs | B2 |
Bluethroat Luscinia svecica | LC | breeding (1998–2002) | 140–180 breeding pairs | C6 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2002. The most recent assessment (2010) is shown below.
IBA conservation status | |||
---|---|---|---|
Year of assessment | State | Pressure | Response |
2010 | very unfavourable | not assessed | not assessed |
Whole site assessed? | State assessed by | Accuracy of information | |
no | population | good |
State (condition of the key species' populations) | |||||
---|---|---|---|---|---|
Species | Actual vs Reference (units) | % remaining | Result | ||
Greylag Goose Anser anser | 3,240 / 6,780 (individuals) | 48 | unfavourable | ||
Northern Shoveler Spatula clypeata | 1,019 / 698 (individuals) | 100 | favourable | ||
Gadwall Mareca strepera | 229 / 840 (individuals) | 28 | very unfavourable | ||
European Nightjar Caprimulgus europaeus | 17 / 23 (breeding pairs) | 74 | near favourable | ||
Black Stork Ciconia nigra | 8 / 12 (breeding pairs) | 67 | unfavourable | ||
Black-crowned Night Heron Nycticorax nycticorax | 112 / 100 (breeding pairs) | 100 | favourable | ||
Great White Egret Ardea alba | 197 / 380 (individuals) | 52 | unfavourable | ||
Common Tern Sterna hirundo | 55 / 60 (breeding pairs) | 92 | favourable | ||
European Honey-buzzard Pernis apivorus | 25 / 15 (breeding pairs) | 100 | favourable | ||
Western Marsh-harrier Circus aeruginosus | 35 / 55 (breeding pairs) | 64 | unfavourable | ||
White-tailed Sea-eagle Haliaeetus albicilla | 13 / 13 (breeding pairs) | 100 | favourable | ||
White-tailed Sea-eagle Haliaeetus albicilla | 70 / 45 (individuals) | 100 | favourable | ||
Common Kingfisher Alcedo atthis | 17 / 25 (breeding pairs) | 68 | unfavourable | ||
Black Woodpecker Dryocopus martius | 70 / 90 (breeding pairs) | 78 | near favourable | ||
Middle Spotted Woodpecker Leiopicus medius | 100 / 100 (breeding pairs) | 100 | favourable | ||
Woodlark Lullula arborea | 20 / 25 (breeding pairs) | 80 | near favourable | ||
Bluethroat Luscinia svecica | 160 / 160 (breeding pairs) | 100 | favourable |
Response (conservation actions taken for the key species and/or their habitats) | |||
---|---|---|---|
Designation | Planning | Action | Result |
Not assessed | Not assessed | Not assessed | not assessed |
Year | Protected Area | Designation (management category) | % coverage of IBA |
---|---|---|---|
1950 | Ruda | Národní prírodní památka (NPP) (III) | <1 |
1955 | Slepičí vršek | Prírodní památka (PP) (III) | <1 |
1956 | Stará a Nová řeka | Národní prírodní rezervace (NPR) (IV) | 2 |
1957 | Velký a Malý Tisý | Národní prírodní rezervace (NPR) (IV) | 1 |
1974 | Fabián | Prírodní rezervace (PR) (IV) | <1 |
1977 | Tøeboòsko | UNESCO-MAB Biosphere Reserve (UA) | 100 |
1979 | Trebonsko | Protected Landscape Area (V) | 100 |
1980 | Třeboňsko | Chránená krajinná oblast (CHKO) (V) | 93 |
1987 | Vizír | Národní prírodní památka (NPP) (IV) | <1 |
1990 | Horusická blata | Prírodní rezervace (PR) (IV) | <1 |
1990 | Rod | Prírodní rezervace (PR) (IV) | <1 |
1990 | Hliníř | Prírodní památka (PP) (III) | <1 |
1991 | Ruda u Kojákovic | Prírodní rezervace (PR) (IV) | <1 |
1991 | Bukové kopce | Prírodní rezervace (PR) (IV) | <1 |
1991 | Lhota u Dynína | Prírodní památka (PP) (IV) | <1 |
1994 | Výtopa Rožmberka | Prírodní rezervace (PR) (IV) | <1 |
1994 | Rybníky u Vitmanova | Prírodní rezervace (PR) (IV) | <1 |
1994 | Losí blato u Mirochova | Prírodní rezervace (PR) (IV) | <1 |
1994 | Záblatské louky | Prírodní rezervace (PR) (IV) | <1 |
1994 | Staré jezero | Prírodní rezervace (PR) (IV) | <1 |
1994 | Široké blato | Prírodní rezervace (PR) (IV) | <1 |
1994 | Soví les | Prírodní památka (PP) (IV) | <1 |
1994 | Rašeliniště Pele | Prírodní rezervace (PR) (IV) | <1 |
1994 | Rašeliniště Hovízna | Prírodní rezervace (PR) (IV) | <1 |
1994 | Olšina u Přeseky | Prírodní rezervace (PR) (IV) | <1 |
1998 | Na Ivance | Prírodní rezervace (PR) (IV) | <1 |
1998 | Dračice | Prírodní rezervace (PR) (IV) | <1 |
2001 | Pískovna u Dračice | Prírodní památka (PP) (IV) | <1 |
2009 | Branské doubí | Prírodní památka (PP) (III) | <1 |
2013 | V Luhu | Prírodní rezervace (PR) (IV) | <1 |
2015 | Kramářka | Prírodní památka (PP) (IV) | <1 |
Habitat | % of IBA | Habitat detail |
---|---|---|
Forest | 45 | Broadleaved deciduous woodland; Native coniferous woodland; Mixed woodland; Alluvial and very wet forest |
Artificial/Terrestrial | 37 | Highly improved re-seeded landscapes; Arable land; Perennial crops, orchards and groves; Urban parks and gardens; Other urban and industrial areas |
Wetlands (inland) | 24 | Standing freshwater; Rivers and streams; Water fringe vegetation; Fens, transition mires and springs |
Grassland | 5 | Humid grasslands; Mesophile grasslands |
Land use | % of IBA |
---|---|
forestry | 43 |
agriculture | 28 |
nature conservation and research | 20 |
urban/industrial/transport | 14 |
fisheries/aquaculture | 11 |
tourism/recreation | 5 |
water management | 1 |
hunting | - |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Trebonsko (Trebon region) (Czechia). Downloaded from
https://datazone.birdlife.org/site/factsheet/trebonsko-(trebon-region)-iba-czechia on 13/01/2025.