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| Description
| - We report on scattered distributional records and a prospering population of the dice snake (Natrix tessellata) from Silesia in the northeast of the Czech Republic. Only a few unconfirmed records and documented sightings have existed from Silesia untill now. A recently discovered population at Havirov, Silesia, represents the first documentation of a reproducing population of N. tessellata in the Baltic Sea Drainage area. It is located approximately 145 km straight line from the nearest confirmed population near Brno, southeastern Czech Republic, which is a locality within the Black Sea drainage. There are several factors that characterize the population near Havirov: 1) the population inhabits a still water system made of ponds, unlike most other river dwelling populations in the Czech Republic; 2) the aquatic habitat is a pond network that drains into the Baltic Sea; 3) the pond system is under heavy anthropogenic influence. The edge of these reservoirs are formed by mullock chips from nearby coal minning activities. In this report we summarize all literature records and verbal information about observations of N. tessellata in Silesia and nearby Poland that indicate its wider distribution in the Baltic Sea Drainage Basin than was previously perceived, pointing toward a natural occurrence of N. tessellata in this area.
- We report on scattered distributional records and a prospering population of the dice snake (Natrix tessellata) from Silesia in the northeast of the Czech Republic. Only a few unconfirmed records and documented sightings have existed from Silesia untill now. A recently discovered population at Havirov, Silesia, represents the first documentation of a reproducing population of N. tessellata in the Baltic Sea Drainage area. It is located approximately 145 km straight line from the nearest confirmed population near Brno, southeastern Czech Republic, which is a locality within the Black Sea drainage. There are several factors that characterize the population near Havirov: 1) the population inhabits a still water system made of ponds, unlike most other river dwelling populations in the Czech Republic; 2) the aquatic habitat is a pond network that drains into the Baltic Sea; 3) the pond system is under heavy anthropogenic influence. The edge of these reservoirs are formed by mullock chips from nearby coal minning activities. In this report we summarize all literature records and verbal information about observations of N. tessellata in Silesia and nearby Poland that indicate its wider distribution in the Baltic Sea Drainage Basin than was previously perceived, pointing toward a natural occurrence of N. tessellata in this area. (en)
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| Title
| - Dice Snake (Natrix tessellata) in the Baltic Sea Drainage Basin (Karvinsko District in Silesia, Czech Republic)
- Dice Snake (Natrix tessellata) in the Baltic Sea Drainage Basin (Karvinsko District in Silesia, Czech Republic) (en)
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| skos:prefLabel
| - Dice Snake (Natrix tessellata) in the Baltic Sea Drainage Basin (Karvinsko District in Silesia, Czech Republic)
- Dice Snake (Natrix tessellata) in the Baltic Sea Drainage Basin (Karvinsko District in Silesia, Czech Republic) (en)
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| skos:notation
| - RIV/25173154:_____/11:#0000227!RIV12-MSM-25173154
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| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/25173154:_____/11:#0000227
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Natrix tessellata; distribution; anthropogenic habitat; Baltic Sea Drainage Basin; Silesia (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Zavadil, Vít
- Jablonski, D.
- Mebert, K.
- Vlček, P.
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| issn
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| number of pages
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| is http://linked.open...avai/riv/vysledek
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