Lmst

#asellus

The two most common #woodlice in Central Europe in deadwood in #Berlin: #Porcellio #scaber and #Oniscus #asellus, #detritusfeeders. Both originate from Western Europe and appear as neozoa e.g. in America. Their #ecologicalrequirements differ: O. asellus tolerates #drought better. P. Zidar et al. (2003) found in choicetests that O. asellus properly #detects #foodqualities, which might be of #hygienic applied interest.

Ref
https://pubmed.ncbi.nlm.nih.gov/14677364/

#Photos:
© S F. Wirth

Oniscus asellus (here only specimens of that species visible) adjacent to Porcellio scaber in the same piece of non determined deadwood on a semi dry meadow in urban park Rehberge in Berlin. An undetermined mite species of genus Linopodes was found nearby in areas with yellow-orange fungus mycelia, seemingly of Coprinellus radians. September 2025, © Stefan F. Wirth

Oniscus asellus adjacent to Porcellio scaber (both visible) in the same piece of non determined deadwood on a semi dry meadow in urban park Rehberge in Berlin. An undetermined mite species of genus Linopodes was found nearby in areas with yellow-orange fungus mycelia, seemingly of Coprinellus radians. September 2025, © Stefan F. Wirth

Oniscus asellus adjacent to Porcellio scaber (here only specimens of that species visible) in the same piece of non determined deadwood on a semi dry meadow in urban park Rehberge in Berlin. An undetermined mite species of genus Linopodes was found nearby in areas with yellow-orange fungus mycelia, seemingly of Coprinellus radians. September 2025, © Stefan F. Wirth

The #woodlouse #Oniscus #asellus (Oniscidae) is originally distributed in Western #Europe, but today one of the most common isopods in #CentralEurope, occuring e g. in dead wood or #leaflitter and is neozoon in North America. D. T. Bilton (2008), names two morphologically/ecologically different #subspecies, O. asellus asellus and O. asellus #occidentalis.

Reference

D. T. Bilton (2008):
http://dx.doi.org/10.1111/j.1096-3642.1994.tb01478.x

#asellus

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