Kvadráty: 6666 5358 5152 6048 6544
  Records by time
Linyphiidae 0-19001901-19501951-20002001-2018
Tenuiphantes zimmermanni (Bertkau, 1890) Endangered 16x 5x 21x

Tenuiphantes zimmermanni (Bertkau, 1890)

Czech nameplachetnatka Zimmermannova
Threat levelEndangered
Records21 nálezů, 5 kvadrátů
First record 1968, J. Buchar, Buchar 1989b; Růžička et al. 1989
Last record 2008 , Vlastimil Růžička, Roman Mlejnek
Distribution areaEuropean [Boh.]
Phytogeographic areaMeso
Původnost stanovišťclimax
Humiditysemi-humid, humid
StratumGround layer
Osvětlení stanovišťshaded
Hojnost výskyturare


© Oto Zimmermann
We assessed the effects of environmental factors on spider communities in screes (sloping mass of coarse rock fragments) of the Czech Republic, based on catches from 325 pitfall traps, exposed for 177–670 days, from 1984–2000. Bootstrap resampling was applied to test for fuzziness of the partitions in cluster analysis of the samples. Two distinct spider communities were identified. The first one was confined to sites where ice is formed and persists until late summer or over the whole year. This community consists of numerous relict spiders, such as Bathyphantes simillimus buchari Růžička 1988, Diplocentria bidentata (Emerton 1882) and Lepthyphantes tripartitus Miller & Svatoň 1978, possibly persisting in these cold screes from the early postglacial period. The other community included all other sites, irrespective of their environmental characteristics. Monte Carlo simulations were used to test the significance of environmental factors and their interactions on the studied communities. Ice formation near the traps and position of the traps within individual screes were the most significant factors, followed by the depth of the traps within the scree, diameter of stones forming the scree, and altitude. A marginally significant effect was found for organic content in the scree matter, whereas presence of trees and phytogeographical districts appeared non-significant. Our analyses support the view that spiders inhabiting cold screes in Central Europe belong to a unique relict community of species requiring cold and stable microclimate.


By month

By altitude

By collecting method (21 used records)
Tenuiphantes zimmermanni (Bertkau, 1890) VUMalesFemalesJuvenilesRecords
Zemní past4226012
Individuální sběr7706

By biotope (16 used records)
Tenuiphantes zimmermanni (Bertkau, 1890) VUMalesFemalesJuvenilesRecords
Suťové a roklinové lesy4529011
Kamenité sutě3103
Květnaté bučiny0202

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