Rare and remarkable spiders (Araneae) from vineyard terraces in Pálava region (South Moravia, Czech Republic)
Faunistic data of rare and remarkable spider species found in vineyard terraces around Mikulov and Popice are presented. Vineyard terraces are artificial – man made – habitats that were established in the eighties of the 20th century with intention of growing grapevine. Spiders were collected by pitfall traping during 30 April – 28 October 2011 and by day and night sweeping of herb vegetation in different dates of 2011. Twenty two species listed in the Red List of threatened species in the Czech Republic were recorded. In vineyard terraces at the vicinity of Popice, 12 threatened species (CR – 2 species, EN – 3 species, VU – 7 species) were found altogether. In the vineyard terraces at Mikulov, we found 18 threatened spider species (CR – 3 species, EN – 7 species, VU – 8 species). Very rare and critically endangered Tibellus macellus Simon, 1875, Dysdera hungarica Kulczyński, 1897 and Cheiracanthium pennyi O. P.-Cambridge, 1873 belongs to the most significant findings. Besides of these threatened species, we discovered rich spectra of rare xerothermophilous spiders which created dominant and eudominant component of araneofauna – Alopecosa solitaria (Herman, 1879), Gnaphosa lucifuga (Walckenaer, 1802), Thanatus arenarius Thorell, 1872, and Ozyptila pullata (Thorell, 1875). We found that artificial habitats such as vineyard terraces are important as suitable habitats for a wide spectrum of xerothermophilous spiders of the Czech Republic.