Records by time | |||||
---|---|---|---|---|---|
Salticidae | 0-1900 | 1901-1950 | 1951-2000 | 2001-2018 | |
Aelurillus v-insignitus (Clerck, 1757) Not endangered | 5x | 12x | 297x | 159x | 473x |
Czech name | skákavka znamenaná |
---|---|
Threat level | Not endangered |
Records | 473 nálezů, 143 kvadrátů |
First record |
1859, F. Prach, Prach 1866 |
Last record | 2020 , Radek Šich |
Distribution area | Palaearctic - Holop. |
Phytogeographic area | Thermo, Meso |
Původnost stanovišť | climax, semi-natural |
Humidity | very dry, dry |
Stratum | Ground layer |
Osvětlení stanovišť | open, (partly shaded) |
Hojnost výskytu | very abundant |
Altitude | 200-500-800-1000 |
While the majority of the Central European landscape would be covered by forests without human influence, rocky areas form isolated, islet-like, natural, non-forest habitats. The surface of some of these non-forested areas is composed of bare bedrock or products of its erosional breakdown (without a soil layer) such as gravel, sand banks, sand dunes, scree slopes and rock outcrop habitats. These habitats harbour specialized spider species that depend on their specific substratum and microclimate (Růžička 2000). Out of these habitats, rock walls (and scree slopes) form one of the most distinct ecological gradients of any terrestrial ecosystem (Larson et al. 1989, Růžička et al. 1995). They provide habitats with extremely warm and cold microclimatic conditions in close proximity. They also belong to habitats almost unknown until now due to the technical and practical problems of sampling.
Sandstones can form extensive systems of rocks, sometimes with a broad spectrum of meso- and microhabitats due to their very dynamic relief. Sandstone rocks are characterised by a marked contrast between forested plateau and bare vertical rock walls (Balatka and Sládek 1984). Upper margins of rocks are dry, vertical rock walls can be sun-exposed, dry and bare, or shady and humid and hence covered by mosses. Spaces with an extremely cold climate can occur in deep gorges. The aim of this study is to evaluate available data on the species composition of spider assemblages in sandstone rocks, including new data about spiders on rock walls in the Bohemian Switzerland (České Švýcarsko) National Park.
Aelurillus v-insignitus (Clerck, 1757) ES | Males | Females | Juveniles | Records |
---|---|---|---|---|
Fotografie | 1 | 0 | 0 | 1 |
Individuální sběr | 89 | 40 | 23 | 71 |
Zemní past | 439 | 104 | 38 | 250 |
Žlutá miska | 11 | 2 | 0 | 12 |
Smyk | 16 | 4 | 3 | 14 |
Prosev | 2 | 2 | 1 | 3 |
Sklepávání | 1 | 1 | 0 | 2 |
Males | Females | Juveniles | Records |
Aelurillus v-insignitus (Clerck, 1757) ES | Males | Females | Juveniles | Records |
---|---|---|---|---|
Skalní a suťové biotopy | 1 | 5 | 0 | 2 |
Břehy tekoucích vod | 2 | 1 | 0 | 2 |
Suťové lesy | 1 | 0 | 0 | 1 |
osluněné skály nižších poloh | 0 | 1 | 0 | 1 |
suché lesní lemy | 1 | 0 | 0 | 1 |
Lesní okraje | 26 | 16 | 10 | 22 |
Xerotermy na jiných podkladech | 83 | 25 | 20 | 63 |
Skály nižších a středních výšek | 26 | 8 | 3 | 14 |
Pískovna | 7 | 1 | 0 | 4 |
Vlhké louky | 2 | 0 | 0 | 2 |
Rašeliniště a slatiniště | 3 | 2 | 2 | 6 |
Reliktní bory na skalních podkladech | 23 | 2 | 5 | 15 |
Obhospodařované pozemky | 1 | 2 | 0 | 1 |
Vřesoviště se smilkou, vřesem, borůvkou | 4 | 0 | 0 | 4 |
Písečné přesypy | 0 | 1 | 0 | 1 |
Haldy a výsypky | 17 | 7 | 16 | 15 |
Kamenolom | 5 | 3 | 0 | 2 |
Lesní paseky | 13 | 7 | 2 | 14 |
Skalní stepi na vápencových podkladech | 6 | 3 | 3 | 8 |
Lesy | 0 | 0 | 1 | 1 |
Kulturní lesy | 8 | 0 | 0 | 7 |
Acidofilní bory | 18 | 2 | 1 | 13 |
Kamenité sutě | 14 | 4 | 0 | 12 |
Pískovcová skalní města | 1 | 1 | 0 | 2 |
Rákosiny, orobincové porosty | 1 | 0 | 0 | 1 |
Močály | 0 | 1 | 0 | 1 |
Slatiniště | 1 | 0 | 0 | 1 |
Pozemní komunikace | 0 | 0 | 1 | 1 |
Krátkostébelné trávníky s mechy a lišejníky | 0 | 1 | 0 | 1 |
Acidofilní bukové bučiny | 5 | 1 | 0 | 4 |
Přirozené lesy | 11 | 7 | 0 | 2 |
Dubo-habrové háje a acidofilní doubravy | 8 | 2 | 0 | 8 |
Suťové a roklinové lesy | 2 | 0 | 0 | 2 |
Polní biotopy | 1 | 0 | 0 | 1 |
Skalní lesostepi, šípákové a teplomilné doubravy | 3 | 1 | 0 | 4 |
Vrchoviště | 1 | 0 | 0 | 1 |
Xerotermní travinobylinná společenstva | 13 | 3 | 0 | 4 |
Bylinný lem lesa | 0 | 0 | 1 | 1 |
Males | Females | Juveniles | Records |