Category Archives: Database Update

Database Update (Version 1.4.3)

Density of spider records in the Caucasus Ecoregion; gray: no records within 25-km-radius; white: 1 record; darkest red: 308 records.

Density of spider records in the Caucasus Ecoregion; gray: no records within 25-km-radius; white: 1 record; darkest red: 308 records. Read more …

Version 1.4.3 of the Caucasian Spider Database includes 13321 records of 1107 spider species, destilling the information distributed across 275 publications with occurrence data of spiders in the Caucaus Ecoregion.

Citation: Otto, S. (2015): Caucasian Spiders. A faunistic database on the spiders of the Caucasus. Version 1.4.3 Internet: http://caucasus-spiders.info/

New features on these pages include:

New content in the database includes:

  • Utochkin (1968) with descriptions of three species: Xysticus caspicus, X. spasskyi (= X. umbrinus), X. ukrainicus.
  • Mikhailova & Mikhailov (2002) with a number of records on the Lycosidae of the northern macroslope of the Caucasus Major
  • Marusik et al. (2003) on P. azerifalcata and P. jergeniensis
  • Kovblyuk & Marusik (2012) on Robertus golovatchi
  • Ponomarev & Komarov (2013) on the spider fauna of North Ossetia-Alania added 637 records, including first records for the Caucasus for Porrhomma campbelli, Tiso vagans, Troxochrus scabriculus, Pardosa albatula, Ero cambridgei, Enoplognatha tecta, Theridium mystaceum, Ozyptila claveata, Titanoeca psammophila and possibly Gnaphosa reikhardi.
  • Triliskauskas & Komarov (2013) with 21 records of orb-web spiders in North Ossetia
  • Ponomarev & Abdurakhmanov (2014) with 107 records of spider species on the Caspian Coast of Dagestan
  • Ponomarev & Chumachenko (2014) with 107 records of spider species, including the first record of Palludiphantes pillichi in the Caucasus
  • Martinovchenko & Mikhailov (2014) with 210 records of spiders in Teberda Reserve with five first records in the Caucasus Ecoregion: Agyneta simplicitarsis, Alopecosa fabrilis, Thanatus striatus, Zora alpina and Zora manicata.
  • Barjadze et al. (2015) with records of 13 species from caves in Georgian Karst Caves
  • Otto & Tanasevitch (2015) with the description of Incestophantes shetekaurii from Assa Valley

Database Update (Version 1.4.1)

By 池田正樹 (talk) masaki ikeda (Own work) [Public domain], via Wikimedia Commons

Argiope bruennichi, (c) Wikimedia Commons

Krehenwinkel & Tautz (2013) presented one of the few studies with the first information on high genetic diversity in spiders of the Caucasus Ecoregion. In their study populations of Argiope bruennichi (Scopoli, 1772) the Caucasus Ecoregion were the only populations — compared to populations in Europe, Russia and East Asia — with all haplotypes present, thus identifying this region as the probable refugial region for western European populations during glaciation events.
The well-known rapid northward range expansion of this species in the last decades was attributed by the authors to genetic admixture of cold-adaptation alleles from East Asian populations.

Ponomarev & Dvadnenko (2013) described Haplodrassus caucasius and sketch its distribution from Krasnodar Region eastwards to Dagestan.

Distribution map from Kovblyuk et al. (2013: 71).

Distribution map from Kovblyuk et al. (2013: 71).

Kovblyuk et al. (2013) described Pireneitega ovtchinnikovi and the male of P. spasskyi (Charitonov, 1946). Both species are vicarious species: P. ovtchinnikovi in the Western Caucasus Major and P. spasskyi in the Eastern Caucasus Major. The authors also identified all specimens of P. segestriformis (Dufour, 1820) from the Caucasus to be misidentified specimens of P. ovtchinnikovi.

With these updates, the database now runs as Version 1.4.1 (see details).