Nálezy podle období
Linyphiidae 0-19001901-19501951-20002001-2018
Mioxena blanda (Simon, 1884) Téměř ohrožený 8x 5x 13x

Mioxena blanda (Simon, 1884)

České jménopavučenka půvabná
Stupeň ohroženíTéměř ohrožený
Nálezy13 nálezů, 8 kvadrátů
První nález 1974, H. Potužáková, Potužáková 1975
Poslední nález 2020 , Jaroslav Blízek, Petr Veselý
Areál rozšířeníEuropean - Me.
Fytogeografická oblastThermo
Původnost stanovišťclimax, semi-natural
Vlhkost stanovišťvery dry
StratumGround layer
Osvětlení stanovišťopen
Hojnost výskyturare
Nadm. výška200-300

Literatura

© Oto Zimmermann

Heterogeneity of environmental conditions is the crucial factor supporting biodiversity in various habitats, including post-mining sites. The effects of micro-topographic heterogeneity on biodiversity and conservation potential of arthropod communities in post-industrial habitats had not been studied before now. At one of the largest European brown coal spoil heaps, we sampled eight groups of terrestrial arthropods with different life strategies (moths, spiders, ground beetles, ants, orthopteroids, centipedes, millipedes, and woodlice), in successionally young plots (5–18 y), with a heterogeneous wavy surface after heaping, and compared the communities with plots flattened by dozing. A combination of the standardized quantitative sampling, using two different methods, and a paired design of the plot selection enabled a robust analysis. Altogether, we recorded 380 species of the focal arthropods, 15 of them nationally threatened. We revealed the importance of the microtopographic heterogeneity for the formation of the biodiversity of arthropods in their secondary refuges. The communities with higher biodiversity and conservation value were detected in the plots with heterogeneous surfaces; exceptions were ground beetles and millipedes. The surface flattening, often the first step of technical reclamation projects, thus suppress biodiversity of most terrestrial arthropods during the restoration of post-mining sites. Since the communities of both surface types differed, the proportional presence on both surfaces could be more efficient in supporting the local biodiversity. We suggest reducing the surface dozing for the cases with other concerns only, to achieve a proportional representation of both surface types. Such a combination of different restoration approaches would, thus, efficiently support high biodiversity of groups with various needs.



Statistiky

Dle měsíce v roce


Dle nadmořské výšky


Dle metody sběru (11 použitých nálezů)
Mioxena blanda (Simon, 1884) LCSamciSamiceMláďataNálezy
Zemní past63011
 SamciSamiceMláďataNálezy

Dle biotopu (7 použitých nálezů)
Mioxena blanda (Simon, 1884) LCSamciSamiceMláďataNálezy
Skalní stepi na vápencových podkladech0101
Kulturní lesy1001
Haldy a výsypky0004
Xerotermy na jiných podkladech1001
 SamciSamiceMláďataNálezy

Online atlas

Pavouci České republiky

Pavouci České republiky