Records by time
Gnaphosidae 0-19001901-19501951-20002001-2018
Micaria silesiaca L. Koch, 1875 Endangered 2x 16x 2x 20x

Micaria silesiaca L. Koch, 1875

Czech namemikarie slezská
Threat levelEndangered
Records20 nálezů, 8 kvadrátů
First record 1930, K. Schubert, Schubert 1933
Last record 2013 , Robert Tropek
Distribution areaPalaearctic - E-A, eM
Phytogeographic areaMeso
Původnost stanovišťclimax
Humidity(very dry, very humid)
StratumGround layer
Osvětlení stanovišťopen
Hojnost výskyturare


© Ondřej Machač

Open interior sands represent a highly threatened habitat in Europe. In recent times, their associated organisms have often found secondary refuges outside their natural habitats, mainly in sand pits. We investigated the effects of different restoration approaches, i.e. spontaneous succession without additional disturbances, spontaneous succession with additional disturbances caused by recreational activities, and forestry reclamation, on the diversity and conservation values of spiders, beetles, flies, bees and wasps, orthopterans and vascular plants in a large sand pit in the Czech Republic, Central Europe. Out of 406 species recorded in total, 112 were classified as open sand specialists and 71 as threatened. The sites restored through spontaneous succession with additional disturbances hosted the largest proportion of open sand specialists and threatened species. The forestry reclamations, in contrast, hosted few such species. The sites with spontaneous succession without disturbances represent a transition between these two approaches. While restoration through spontaneous succession favours biodiversity in contrast to forestry reclamation, additional disturbances are necessary to maintain early successional habitats essential for threatened species and open sand specialists.  Therefore, recreational activities seem to be an economically efficient restoration tool that will also benefit biodiversity in sand pits.


By month

By altitude

By collecting method (6 used records)
Micaria silesiaca L. Koch, 1875 VUMalesFemalesJuvenilesRecords
Zemní past5005
Individuální sběr0101

By biotope (6 used records)
Micaria silesiaca L. Koch, 1875 VUMalesFemalesJuvenilesRecords
Xerotermní travinobylinná společenstva3003

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