Počet záznamů: 1

Morphological adaptations of Porrhomma spiders (Araneae: Linyphiidae) inhabiting soil

  1. 1.
    0367923 - BC-A 2012 RIV US eng J - Článek v odborném periodiku
    Růžička, Vlastimil - Laška, V. - Mikula, J. - Tuf, I.H.
    Morphological adaptations of Porrhomma spiders (Araneae: Linyphiidae) inhabiting soil.
    Journal of Arachnology. Roč. 39, č. 2 (2011), s. 355-357 ISSN 0161-8202
    Grant ostatní: National Research Programme II(CZ) 2B06101
    Výzkumný záměr: CEZ:AV0Z50070508
    Klíčová slova: Araneae * soil profile * troglomorphisms
    Kód oboru RIV: EG - Zoologie
    Impakt faktor: 0.626, rok: 2011

    We studied occurrence and morphological adaptations of two species of the genus Porrhomma down to soil depths of 135 cm. Porrhomma microps inhabited soil layers at depths between 5 and 135 cm. Porrhomma aff. myops was found at depths of 35–95 cm. Specimens of both species were depigmented and had highly reduced eyes. Compared with the epigean P. pygmaeum, P. myops, which inhabits scree and caves, exhibits significantly longer legs. We interpret it as an example of troglomorphism. Compared with the epigean P. pygmaeum, P. aff. myops is found deep in the soil, and exhibits a significantly smaller cephalothorax. We interpret this as edaphomorphism. We consider the edaphomorphic population of P. aff. myops to be a permanent soil inhabiters.
    Trvalý link: http://hdl.handle.net/11104/0202430