Nálezy podle období
Linyphiidae 0-19001901-19501951-20002001-2021
Saaristoa abnormis (Blackwall, 1841) Silně ohrožený 1x 34x 35x

Saaristoa abnormis (Blackwall, 1841)

České jménoplachetnatka pětiúhlá
Stupeň ohroženíSilně ohrožený
Nálezy35 nálezů, 10 kvadrátů
První nález 1949, F. Miller, Miller 1951
Poslední nález 2000 , Štěpánka Táborská
Areál rozšířeníEuropean (U
Fytogeografická oblastMeso, Oreo
Původnost stanovišťclimax
Vlhkost stanovišťsemi-humid, humid
StratumGround layer
Osvětlení stanovišťopen, semi-open
Hojnost výskyturare
Nadm. výška200-1200

Literatura

 © Oto Zimmermann
The studied locality, i.e. Klánovický les Forest is situated on the edge of Prague, one of the most polluted areas in the Czech Republic. Thanks to large area the forest acts as an isolation from agrochemicals, thus allowing the existence of some habitats sensitive to eutrophisation, in particular peat-bogs, heaths, bare sandy soils, and Molinia meadows. The habitats harbour unusually high species diversity of spiders and
harvestmen: the author recorded 286 spider and 11 harvestman species there, which is approximately one third of the Czech fauna. Sixty one of them are red-listed in the Czech Republic. Peat-bog linyphiid Saaristoa abnormis, and steppe lycosid Alopecosa schmidti and linyphiid Panamomops inconspicuus are listed as endangered. Local small peat-bogs offer suitable conditions for disappearing lycosids Hygrolycosa
rubrofasciata, Pirata piscatorius and Piratula uliginosa, while heaths harbour the disappearing Oxyopes ramosus. Water spider Argyroneta aquatica has recently been found in small pools in ditches along the railway. Littoral vegetation is inhabited by Theridiosoma gemmosum and the jumping spider Calositticus floricola. Disturbed soil surface of wet meadows harbours the wolf spider Arctosa leopardus. Some species have recently appeared at the site, for example Dysdera hungarica, the harvestman Nemastoma bidentatum sparsum or the crab spider Synema globosum. The first two were probably introduced there by man, the latter probably expands due to climate change. The author suggests to keep these habitats without woody vegetation to protect local high species diversity there.


Statistiky

Dle měsíce v roce


Dle nadmořské výšky


Dle metody sběru (33 použitých nálezů)
Saaristoa abnormis (Blackwall, 1841) ENSamciSamiceMláďataNálezy
Individuální sběr0001
Zemní past544131
Prosev0101
 SamciSamiceMláďataNálezy

Dle biotopu (32 použitých nálezů)
Saaristoa abnormis (Blackwall, 1841) ENSamciSamiceMláďataNálezy
Rašelinné březiny a bory0101
Horské buko-jedlové lesy0101
Skály nižších a středních výšek1101
Širokolisté vysokostébelné nivy461022
Močály0101
Vrchoviště2103
Stojaté a pomalu tekoucí vody3002
Kultury listnáčů2001
 SamciSamiceMláďataNálezy