Natura Croatica Issue number: Natura Croatica, Vol. 24 No.1

Rasprostranjenost kopnenog jednakonošca Hyloniscus adonis (Verhoeff, 1927) (Isopoda: Oniscidea) u Hrvatskoj

Authors: Ivan Antonović, Andreja Brigić, Jana Bedek, Zorana Sedlar

Authors and affiliation

  • Ivan Antonović Slavka Kolara 45, HR-10 410 Velika Gorica
  • Andreja Brigić University of Zagreb, Faculty of Science, Department of Biology, HR–10000 Zagreb, Croatia
  • Jana Bedek Croatian Biospeleological Society, Demetrova 1, 10000 Zagreb, Croatia
  • Zorana Sedlar Department of Botany, Croatian Natural History Museum, Demetrova 1, HR-10 000 Zagreb, Croatia

Abstract

This paper presents the distribution of the terrestrial isopod Hyloniscus adonis (Verhoeff, 1927) in croatia. It was recorded for the first time at the edge of Dubravica peat bog and the adjacent forest. Additionally, it was collected at the edges of Đon močvar peat bog. Revision of the terrestrial isopod collection of the Croatian Biospeleological Society revealed that this species also occurs in central and eastern part of Croatia. Our results reveal that H. adonis is a hygrophilic species inhabiting various types of forests in the colline and montane belts. It prefers humid soils with thick litter and humus layers and most probably seldom leaves its shelter. H. adonis is extremely rare in open bog habitats, most likely due to the harsh environmental conditions (e.g. high soil humidity, low pH values) and can be considered as a tyrphoxenous species. Additionally, it was also found in the entrance zones of caves, most likely due to the favourable microclimatic conditions. It seems to be a temporary cave dweller and can be classified as a trogloxenous species.

Keywords

peat bog, Dubravica, Đon močvar, cave, tyrphoxenous species, trogloxenous species