Rejvíz National Nature Reserve

The Rejvíz NNR was declared in 1995 and currently covers a territory of 329 ha with a buffer zone of 69 ha in the north-eastern section of the Hrubý Jeseník mountains, to the east of the town of Jeseník in the Olomoucký kraj – Olomouc Region. The reserve is located to the south of the settlement of Rejvíz in a flattish basin at elevations of 731 – 804 metres. The subject of the protection is the largest complex of raised peatbogs, peatbog forests and peaty meadows in the north Moravian and Silesian region.

The characteristic feature of Rejvíz NNR is that practically all places of development and types of peat-based biotopes which are typical for this region are found here. In the western section of the reserve we can find a three-metre-deep peatbog pool surrounded by bog pines – Pino rotundatae-Sphagnetum association a primeval character with scattered Norway spruce (Picea abies) and Carpathian birch (Betula carpatica). The bog pine growths are equally well developed around the second pool on the eastern edge of the reservation, but this pool is well on the way to drying up and a relatively rich population of Rannoch rush (Scheuchzeria palustris) can be found here too. Here the peat layer is about 6,5 metres in thickness. In the undergrowth in the bog pine stands we can find species such as labrador tea (Ledum palustre), bog rosemary (Andromeda polifolia), bog whortleberry (Vaccinium uliginosum), common spotted orchid (Dactylorhiza fuchsii) and hare’s-tail cottongrass (Eriophorum vaginatum)

Between these growths of bog pines we can find a complex of transitional mires of the Sphagno recurvi-Caricion canescentis and raised bogs of the Sphagnion medii with numerous sphagnum mosses and species including round-leaved sundew (Drosera rotundifolia), the cranberry Oxycoccus palustris and hare’s-tail cottongrass (Eriophorum vaginatum). Many dragonflies inhabit the peatbog pools, of which the most significant are the relict species Sub-Arctic darner (Aeshna subarctica) and the northern emerald (Somatochlora arctica).

The open raised bogs and the bog pine stands neighbour with bog spruce stands of the  Sphagno-Piceetum and waterlogged spruces of the Mastigobryo-Piceetum association with scattered silver fir (Abies alba).

Significant anthropogenic biotopes are the fen meadows of the Caricion fuscae and waterlogged meadows – Calthion with islands of relatively dry, short-stemmed mat-grass communities. Abundant species on these meadows include western marsh orchid (Dactylorhiza majalis), the leopardsbane Doronicum austriacum, marsh violet (Viola palustris) and less frequently tufted loosestrife (Naumburgia thyrsiflora), creeping willow (Salix rosmarinifolia)or fibrous tussock sedge (Carex appropinquata). The lousewort (Pedicularis sylvatica) flowers in the drier areas in June.

The pools on the meadow are breeding sites for a variety of amphibians, including a stable population of Carpathian newt (Triturus montadoni). The adder (Vipera berus) lives in the reserve. A typical butterfly of the fen meadows and waterlogged meadows is the moorland clouded yellow (Colias paleano). The black grouse (Tetrao tetrix) which were recorded here 20 years ago have now disappeared.

The rare saprophyte – coralroot orchid (Coralorhiza trifida) can be found in the growths of dwarf willows – grey willow (Salix cinerea) and eared willow (Salix aurita). On the fringes of the NNR territory we can also find the gladiolus - Gladiolus imbricatus and the orange lily (Lilium Bulbiferum). The corncrake (Crex crex) regularly nests in the reserve and its surroundings.

Management of the territory is targetted towards converting the species composition of the surrounding forests (especially in drier areas) to a more natural state. We also cut some parts of the waterlogged meadows, form and renew pools and cut back some of the shrub willows which grow on the meadow.

Rejvíz NNR is at the heart of the proposed Rejvíz proposed Site of Community Importance and lies in the first zone of Jeseníky PLA and is a Biocentre of Supraregional Importance under the regional system of ecological stability.

The NNR territory is accessible on a themed trail, which joins the Rejvíz settlement with the Velké mechové jezírko (Great Moss Pool) and in forms visitors about the typical biotope types in the reserve and of the formation and development of the peatbogs. A part of the trail through the NNR leads along a boardwalk and a small information centre can be found at the start of this board walk.