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Selected Coleoptera and Araneae species from man-made, steep-like, habitats in the vicinity of Prešov town, Eastern Slovakia

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Selected Coleoptera and Araneae species from man-made, steep-like, habitats in the vicinity of Prešov town, Eastern Slovakia

Beáta Baranová 1 Tomáš Jászay 2 Zuzana Krumpálová 3

1Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov in Prešov, 17. novembra 1, SK-081 16 Prešov, Slovakia
2The Šariš Museum in Bardejov, Department of Natural Sciences, Radničné námestie 13, SK-085 01 Bardejov, Slovakia
3Department of Ecology and Environment, Faculty of Natural Sciences, Constantine the Philosopher University, Trieda Andreja Hlinku 1, SK-949 74 Nitra, Slovakia
bbaranova@gmail.com

Artificial, anthropogenic habitats are considered to be valuable habitats for endangered species. Equally, such a sites are found to be analogues of natural biotopes for habitat specialists, which populations are on decline within the agricultural landscape.

Our paper noticed the occurrence of faunistically interesting species of beetles and spiders at three man-made sites, which could be characterized as ,steep-like, habitats due to the absence of closed vegetation canopy, but sparse grassy and herbaceous vegetation and solitary low-height trees as Betula pendula, Pinus niger or Populus tremulus, and sandy substratum or substratum, which physically imitates sandy soils. Sites were located in the near vicinity of Prešov town, Eastern Slovakia including small, local sandy-pit (Šarišské Sokolovce); old, unused stone quarry, previously used as the asphalt mixing plant (Vyšná Šebastová) and dump of the rocky material for recultivation (Terňa-Hradisko). Material of epigeal macrofauna including surface dwelling beetles and spiders was collected using formalin pitfall traps. Traps were exposed during the three months period (May-July) in 2020, checked and picked-up every two weeks. The material was sorted up to order level, representatives of Coleoptera and Araneae orders were determined up to the species level as possible according to appropriate determination keys.

With lay emphasis on the bionomy corresponding with sites characteristics, i.e. occurrence of the bare, naked sandy soils, open dry habitats, following faunistically the most interesting species beetles and spiders were found: strand-line burrower Broscus cephalotes (Linnaeus, 1758) (Coleoptera:Carabidae)-rare, attractive, red-list species tightly fixed on the biotopes with sparse vegetation and sandy substratum used for burrow building, eggs laid, larva development and as imago shelter; Panagaeus bipustulatus (Fabricius, 1775) (Coleoptera:Carabidae)-rare, vulnerable species of the dry habitats; Bisnius nitidulus (Gravenhorst, 1802) (Coleoptera:Staphylinidae)-endangered psamophilus rove found at the sandy gravel pits or sandy dunes; Ontholestes haroldi (Eppelsheim, 1884) (Coleoptera:Staphylinidae)-endangered species living  in rotten organic substances; Xysticus lineatus (Westring, 1851) (Araneae: Thomisidae )-rarely found endangered species; Allagelena gracilens  (C. L. Koch, 1841) (Araneae: Agelenidae)-species building small funnel webs in higher vegetation at warm, sunny places with not frequent occurence; Xerolycosa miniata (C. L. Koch, 1834) (Araneae: Lycosidae)-species of sunny sandy plains with very short grass as sandbars  and sand-pits.

Although, in general, communities were dominated by ubiquistic and eurytopic species, upper mentioned findings indicate potential of studied type of sites to host also several specialists including psammophilous and endangered species. Further research is needed.

Acknowledgements: Work was supported by the research grant KEGA n. 005/PU4-2019.
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