Abstract
Spiders from the steppe habitats of the Planě Nature Monument (Czech Republic) were investigated. The spiders were samdoi: 10.30963/aramit5812 pled using pitfall traps and through sweeping of the herb vegetation. In total, 11634 individuals from 154 species in 88 genera from 25 families were recorded. Numerous threatened species listed in the Red List of the Czech spiders were found (CR – 1, EN – 1, VU – 11, LC – 23). 36 mainly xerothermic species were recorded, representing a valuable arachnofauna typical for the Pannonian Region. However, the studied area does not belong to this particular region. Several findings represent the northernmost occurrences of rare thermophilic spiders in the Czech Republic. Ten species (Dysdera moravica, Megalepthyphantes pseudocollinus, Trichoncus affinis, Porrhomma errans, Alopecosa striatipes, Cheiracanthium oncognathum, Civizelotes pygmaeus, Zelotes aeneus, Thanatus arenarius, Talavera aperta) are discussed in details and their records in the Czech Republic are mapped. Suggestions regarding the management of the area are given to improve the conditions for a high and valuable biodiversity.
Highlights
Since the middle of 20th century, intensification of agri culture, together with an abandonment of less productive lands, has been the major threat to invertebrates in Europe (Tscharntke et al 2005)
The main objective of this research is a faunistic contribution on spiders from the steppe habitats of the Pláně Nature Monument (NM), which could be beneficial to the area’s conservation management
Relevant conservation management in stitutions could take into account these new findings and develop plans based on this research, which would eventually strengthen the protection of local biodiversity
Summary
Since the middle of 20th century, intensification of agri culture, together with an abandonment of less productive lands, has been the major threat to invertebrates in Europe (Tscharntke et al 2005). Pastures are transformed into a large blocks of fields for crop production or abandonment (Stoate et al 2009). In the recent cultivated landscape, grasslands have a significant role in maintaining biodiversity by providing important habitats and refuges for many species (Duelli 1997). Faunistic investigations in these habitats can provide important data useful for evaluation of the biodiversity state in the current landscape. For this reason, this research focuses on the Pláně Nature Monument (NM), an abandoned pasture with xeric grasslands in a south and south-eastern orientation. The main objective of this research is a faunistic contribution on spiders from the steppe habitats of the Pláně NM, which could be beneficial to the area’s conservation management. Relevant conservation management in stitutions could take into account these new findings and develop plans based on this research, which would eventually strengthen the protection of local biodiversity
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