Nálezy podle období
Zodariidae 0-19001901-19501951-20002001-2018
Zodarion germanicum (C. L. Koch, 1837) Není ohrožený 1x 1x 168x 82x 252x

Zodarion germanicum (C. L. Koch, 1837)

České jménomravčík obecný
Stupeň ohroženíNení ohrožený
Nálezy252 nálezů, 59 kvadrátů
První nález 1866, E. Bárta, Bárta 1869
Poslední nález 2015 , Pavel Marhoul
Areál rozšířeníEuropean - ME
Fytogeografická oblastThermo, Meso
Původnost stanovišťclimax, semi-natural
Vlhkost stanovišťvery dry, dry
StratumGround layer
Osvětlení stanovišťopen, partly shaded
Hojnost výskytuscarce probably
Nadm. výška200-500

Literatura

© Oto Zimmermann

Spiders of the Brdy Protected Landscape Area were studied. Material obtained from pitfall traps exposed during the years 2016–2017 at 15 different representative localities included a total of 4027 individuals belonging to 154 species of spiders. Cold tolerant species (e.g. Bathyphantes similis and Pocadicnemis carpatica) as well as thermophilic species (e.g. Lathys humilis and Zodarion germanicum) were recorded. The West European species Palliduphantes ericaeus reaches here the easternmost border of its  distribution, on the contrary the East European species Walckenaeria simplex has in this territory the western limit of its areal. A quarter of the recorded spider species is closely related to the original and natural habitats. Together with the published data and data from arachnological databases, the occurrence of 220 species of spiders is currently listed for the Brdy PLA, representing about 25 % of the total fauna of the Czech Republic. The results documented presence of interesting arachnofauna and confirm a high natural value of the given area.



© Oto Zimmermann

The invertebrates of the Macocha Abyss, Moravian Karst, Czech Republic, were collected in 2007–2008 and 222 species were identified in total. The relative abundance of individual taxa of land snails, harvestmen, pseudoscorpions, spiders, millipedes, centipedes, terrestrial isopods, beetles, and ants was evaluated. The cold-adapted mountain and subterranean species inhabit the bottom and lower part of the abyss, whereas the sun-exposed rocky margins were inhabited by thermophilous species. Macocha harbors several threatened species that are absent or very rare in the surrounding habitats. In the forest landscape, the Macocha Abyss represents a natural habitat with a distinct microclimatic gradient, and is an excellent refuge area for psychrophilous as well as thermophilous species, which significantly contributes to maintenance of landscape biodiversity.



© Oto Zimmermann

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.



Statistiky

Dle měsíce v roce


Dle nadmořské výšky


Dle metody sběru (189 použitých nálezů)
Zodarion germanicum (C. L. Koch, 1837) ESSamciSamiceMláďataNálezy
Zemní past426162638157
Prosev17337
Individuální sběr1412524
Smyk1001
 SamciSamiceMláďataNálezy

Dle biotopu (135 použitých nálezů)
Zodarion germanicum (C. L. Koch, 1837) ESSamciSamiceMláďataNálezy
suché doubravy3101
dubohabřiny2201
Lesní okraje807115
Pískovcová skalní města2101
Skály nižších a středních výšek4337
Cesty, silnice411453
Květnaté bučiny1001
Reliktní bory na skalních podkladech5203
Kamenité sutě96212
Skalní stepi na vápencových podkladech18122018
Dubo-habrové háje a acidofilní doubravy245416
Xerotermní travinobylinná společenstva3434
Skalní lesostepi, šípákové a teplomilné doubravy67151223
Vřesoviště se smilkou, vřesem, borůvkou0001
Haldy a výsypky005894
Acidofilní bory1001
Lesní paseky3002
Ruderály2001
Trnkové křoviny3002
Přirozené lesy1001
Borové monokultury1403
Xerotermy na jiných podkladech6106
Rašelinné březiny a bory4104
Kultury listnáčů551102
Stojaté a pomalu tekoucí vody4101
Smrkové monokultury2002
 SamciSamiceMláďataNálezy

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