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The Heřmanský State – Oder River – Poolší Bird Area 1

Heřmanský the state – The Oder River - Poolší Bird Area (The Olza Floodplain 11)

Basic information

The Olza river floodplain is home to many protected animal and plant species. Former meanders of this floodplain and a well-preserved river terrace around Věřňovice with its mostly linear accompanying vegetation and soft meadows are an ideal shelter for these species. A part of this area belongs to Věřňovice Natural Monument which encompasses 4,59 hectares and was established in order to protect the vegetation of its floodplain forest in 1989. Věřňovice Natural Monument is regarded as one of Sites of Community Importance (SCI) as is it a part of The Olza River Floodplain– Věřňovice Protected Area which was established in order to protect brown hermit Osmoderma eremita and yellow-bellied toad Bombina variegata within an area of 553,9969 hectares. Apart from that, this area also belongs to Heřmanský the state – The Oder River – Poolší Bird Area which is located in the northeastern part of Moravian-Silesian Region near the Polish border. This area is based upon the Oder river (in the lenght of cca 10 km) and the Olza river (in the length of cca 16 km) including adjacent river floodplains. Karviná ponds system and the stretch of the Petrůvka river border are connected from the east, pond systems in Rychvald, Bohumín – Záblatí and Heřmanice are connected form the south. The total extent of this bird area is 3100,8670 hectares.

Subject of protection

The following species are the main subjects of protection in this bird area: the Little Bittern Ixobrychus minutus, the Common Kingfisher Alcedo atthis and the Bluethroat Luscinia svecica. Except from that many rare amphibians, birds and other animals can be found there. One of them is also the European tree frog Hyla arborea.

Hyla arborea

European tree frog Hyla arborea

The European tree frog is an unmistakable little frog being as long as 5 cm. The characteristic feature of this frog is the discs on the frog´s toes. Its skin is green under normal circumstances but tree frogs are able to change their skin colour also to grey, brown or yellow. Almost throughout the whole growing season it lives on higher plants, in bushes or in treetops. It seeks water only during the breeding period which takes time in May. The female lays 800 – 1000 eggs into two to five globular clusters. The singing of the tree frog is incredibly loud with regard to its size. It can be heard at a distance of several kilometres which makes it the loudest frog in Europe. It belongs to highly endangered species protected by law.

Hyla arborea

Useful information

Regional Authority of the Moravian-Silesian Region, Department of the Environment and Agriculture 28. října 117, 702 18 Ostrava www.kr-moravskoslezsky.cz Phone: +420 595 622 297

GPS position

N 49° 53.300', E 18° 29.299'