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Important species

The former training ground is a very important refugium for many thermophilous species of endangered plants and animals, especially invertebrates.

Particularly important is the local community of butterflies with the presence of the critically endangered Lulworth skipper (Thymelicus acteon), chaste pellicle (Watsonarctia casta) and a number of other species included on the Red List of Endangered Invertebrate Species of the Czech Republic, such as silver-spotted skipper (Hesperia comma), green-underside blue (Glaucopsyche alexis), eastern baton blue (Pseudophilotes vicrama), and bloodword burnet (Zygaena laeta).

There is also the Jersey tiger (Euplagia quadripunctaria), which is listed in Annex II of the Habitats Directive and is subject to protection of SAC.


In addition, the beetle community hosts many endangered species including the steppe relics of weevils Tychius tridentinus, Brachysomus setiger, Trachyphloeus spinosus, Centricnemus leucogrammus, Otiorhynchus velutinus, Trachyphloeus alterna, and Trachyphloeus spinimanus.


From a botanical point of view, this is a varied area.

The exposed habitats at the top of both hills are covered with typical rocky steppes with the typical species of Volga fescue (Festuca valesiaca), Seseli hippomarathrum, and Oxytropis pilosa.

The lower parts are dominated by dry grasslands with upright brome (Bromus erectus), which on south-facing slopes are replaced by steppe meadows with hairy feather grass (Stipa capillata), Melica transsylvanica, Astragalus austriacus, Eurasian thyme (Thymus pannonicus), and other species.

In the western, flat part with deeper soils, the grasslands have a slightly more mesophilic character with a significant proportion of dicotyledons, for example large-flowered selfheal (Prunella grandiflora), dragon's teeth (Tetragonolobus maritimus), woolly thistle (Cirsium eriophorum), and Spanish catchfly (Silene otites).