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    STUDIA BIOLOGIA - Ediţia nr.2 din 2005  
         
  Articol:   TERRESTRIAL ISOPOD COMMUNITIES (CRUSTACEA, ISOPODA) IN RIVERSIDE COPPICES AND MEADOWS OF MOUNTAINOUS, HILLY AND DEPRESSION AREAS.

Autori:  NICOLAE TOMESCU, DANIELA MUREŞAN, LIUBOMIRA OLARU, RADU HOTEA.
 
       
         
  Rezumat:  The quantitative and qualitative research methods were used to study the terrestrial isopod communities in riverside coppices and meadows of mountainous, hilly, depression and plain areas. Nineteen species of terrestrial isopods were identified, and they can be classified into four ecological categories: 7 paludicolous species (Ligidium hypnorum, Ligidium germanicum, Trichoniscus pusillus, Hyloniscus riparius, Hyloniscus transsylvanicus, Hyloniscus siculus, Hyloniscus mariae), 7 sylvan species (Protracheoniscus politus, Porcellium conspersum, Trachelipus arcuatus, Trachelipus ratzeburgi, Trachelipus wachtleri, Porcellio spinicornis, Armadillidium carniolense), 3 praticolous species (Trachelipus nodulosus, Armadillidium versicolor quinqueseriatum, Armadillidium vulgare) and 2 euritopes species (Trachelipus rathkei, Porcellio scaber). On the meadows in mountainous areas, there are only paludicolous and sylvan species, fauna similar to the one in the forests. Although these are open ecosystems, there are humidity and temperature conditions similar to the ones in the forests. There are no praticolous species, characteristic of the meadows in hilly and plain areas. In the riverside coppices of mountainous areas, there are only paludicolous and sylvan species, just like in the riverside coppice of the Făget forest, located in a hilly area. Here, the high density of the trees maintains moderate temperatures that do not exceed 18║C under the litter layer. In the riverside coppices of depression and plain areas, there is a larger diversity of microhabitats, which favours the existence of isopod species of all ecologic categories (paluicolous, sylvan, praticolous, euritopes). On the meadows of depression and plain areas, there are only praticolous species (Trachelipus nodulosus, Armadillidium versicolor quinqueseriatum, Armadillidium vulgare).  
         
     
         
         
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