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Jenerálka Natural Monument

Principal data Rocky ridge on the right-hand bank of the Šárecký potok (Šárka Brook) approaching the curved Horoměřick Street inthe east and by-passed by a small tributary of the Šárecký Potok brook in the west. Cadastre: Prague 6 - Vokovice. Area: 1.51 ha. Elevation: 225 - 255 m above sea level. Established by the ordinance of Prague Municipality No. 5/1968 of April 29, 1968.

Reason of establishment, principal motive of protection Outstanding geological and landscape element with the occurrence of protected plant species.

Geology, geomorphology, pedology Upper Proterozoic (shales, greywacke shales,greywackes) and Ordovician (tuffs, tuffites, shales) rocks. Oligotrophic rankers on rocks, mezotrophic brown soils on cover loams.

Botany A textbook example of vegetation diversity dependingon the slope orientation and angle: the slopes facing south host the communities with Scleanthus perennis and fescue grasses, the northern slope marginal communities with the bloody cranesbill (Geranium sanguineum) and cow-wheat (Melampyrum) oak and hornbeam woods, the steep western rock slope crevice vegetation with the spleenworts (Asplenium sp.) and the cotoneaster (Cotoneaster integerrimus). There are also such rare species as Gagea bohemica and Gagea pratensis, the cornflower (Cyanus trumfettii), the burning bush (Dictamus albus), the cotoneaster (Cotoneaster integerrimus), etc.

Zoology Xetrothermal rocky steppe and forest steppe communities. From the number of beetles the ground beetle species Panagaeus bipustulatus and Harpalus anxius, from the number of phytophagous beetles some relic steppe species, such as Omias rotundatus, from the number of butterflies e.g. Celastrina argiolus. Nesting site of e.g. the brambling(Fringilla montifringilla), the great tit (Parus major) and in recent years surprisingly the nightingale (Luscinia megarhynchos).

Forestry Prevailing wood species is the hornbeam growing from stump sprouts, with an admixture of durmast oak (Quercus petraea), the common maple (Acer campestre), the hawthorn and the lime.

Economic exploitation, principal threats, proposed care of protected area Forest exploitation, controlled pasturing. It is necessary to retard the succession of shrubs on the southern slope and at the rock foot. The protected area forms part of the Šárka-Lysolaje natural park.

Bibliography Chlupáč (1988), Klaudisová, Rydlo (1982), Kubíková (1982, 1985).

The Upper Proterozoic roks
The Upper Proterozoic roks form a conspicuous ridge of the Jenerálka natural monument in the valley of the Šárka Brook

The turtle dove (Streptopelia turtur)
The turtle dove (Streptopelia turtur) nests in open landscape with shrubs.