Records by time | |||||
---|---|---|---|---|---|
Salticidae | 0-1900 | 1901-1950 | 1951-2000 | 2001+ | ∑ |
Sibianor aurocinctus (Ohlert, 1865) Almost threatened | 2× | 4× | 101× | 28× | 135× |
Sibianor larae Logunov, 2001 | 5× | 5× | |||
Sibianor tantulus (Simon, 1868) | 2× | 2× |
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.
Předložená práce pojednává o preferencích při hnízdění či výskytu členovců v štěrbinových ekosystémech v PP Na Plachtě a možnostech jejich praktické ochrany. PP Na Plachtě je lokalita vyznačující se pestrou skladbou biotopů, tudíž se zde vyskytuje mnoho vzácných druhů. Nikdy zde však nebylo zjišťováno, jaké druhy se vyskytují v přirozených štěrbinách, jakou jsou třeba rákosy či ostružiny. Proto byly na lokalitu rozmístěné výzkumné substráty, díky kterým se dá hmyz využívající štěrbiny pozorovat. Zároveň bylo zjišťováno, jestli jsou druhy vázané i na biotop či přístupnost substrátu. Cílem práce bylo zjistit, jak takto vázaným živočichům pomoci v jejich výskytu a podpořit tak druhovou skladbu v PP Na Plachtě. Výsledky byly zpracovány a z nich vyhodnoceny nejvhodnější managementy pro zachování a podpoření výskytu živočichů využívající štěrbiny. Těmito managementy jsou například pravidelná fragmentace suchých stonků či postavení hmyzích hotelů.
Neurčeno | Males | Females | Juveniles | Records |
---|---|---|---|---|
Sibianor aurocinctus (Ohlert, 1865) | 29 | 17 | 1 | 50 |
Individuální sběr | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 11 | 22 | 0 | 33 |
Zemní past | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 30 | 14 | 2 | 29 |
Sibianor larae Logunov, 2001 | 0 | 0 | 0 | 1 |
Sibianor tantulus (Simon, 1868) | 1 | 0 | 0 | 1 |
Prosev | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 5 | 6 | 0 | 10 |
Smyk | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 5 | 2 | 0 | 7 |
Sibianor larae Logunov, 2001 | 0 | 1 | 0 | 1 |
Sklepávání | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Sibianor larae Logunov, 2001 | 1 | 2 | 0 | 3 |
Eklektor | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 6 | 0 | 1 | 4 |
Vysavač | Males | Females | Juveniles | Records |
Sibianor tantulus (Simon, 1868) | 6 | 0 | 0 | 1 |
Žlutá miska | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 1 | 0 | 1 |
Males | Females | Juveniles | Records |
Neurčeno | Males | Females | Juveniles | Records |
---|---|---|---|---|
Sibianor aurocinctus (Ohlert, 1865) | 33 | 17 | 1 | 63 |
Sibianor larae Logunov, 2001 | 0 | 0 | 0 | 1 |
Sibianor tantulus (Simon, 1868) | 1 | 0 | 0 | 1 |
Rašeliniště | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 2 | 5 | 1 | 6 |
Sibianor larae Logunov, 2001 | 1 | 3 | 0 | 4 |
Suché louky | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 13 | 13 | 0 | 9 |
Sibianor tantulus (Simon, 1868) | 6 | 0 | 0 | 1 |
Xerotermní travinobylinná společenstva | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 4 | 0 | 5 |
Výsadby jehličnanů | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 8 | 0 | 0 | 5 |
Mokré louky | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 4 | 3 | 0 | 5 |
Louky | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 2 | 3 | 0 | 4 |
Kamenolomy | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 3 | 0 | 0 | 3 |
Luční ostřicové mokřady | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 2 | 3 | 0 | 3 |
Úhory | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 2 | 1 | 0 | 3 |
Louky a pastviny | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 3 | 0 | 3 |
Lesy | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 1 | 1 | 3 |
Skalní stepi na vápenci | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 3 | 2 | 0 | 3 |
Lesní okraje | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 1 | 0 | 2 |
Ovocné sady s luční vegetací | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 2 | 0 | 0 | 2 |
Suché doubravy | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 2 | 0 | 0 | 2 |
Slaniska | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 1 | 0 | 1 |
Lesy vyšších poloh a strmých svahů | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 1 | 0 | 1 |
Haldy a výsypky | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 1 | 1 |
Mezofilní louky | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 1 | 0 | 1 |
Lužní lesy nížin | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Paseky | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Suťové a roklinové lesy | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Vlhké lesní lemy | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Suché lesní lemy | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 1 | 0 | 1 |
Těžební jámy | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Okraje silnic | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 1 | 0 | 1 |
Interiéry budov | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 0 | 1 | 0 | 1 |
Travnaté stepi | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Mokřadní vrbiny | Males | Females | Juveniles | Records |
Sibianor aurocinctus (Ohlert, 1865) | 1 | 0 | 0 | 1 |
Males | Females | Juveniles | Records |