Publication details
Chironomid larvae in two types of Western Carpathian spring fens differing in mineral richness
| Authors | |
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| Year of publication | 2009 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | Chironomid larvae was studied on spring fens in Western Carpathians in relation to poor-rich mineral gradient(pH/Ca),which controls changes in assemblages from rich tufa fens to poor Sphagnum-fens.This study presents results from 2sites of both extremes sampled in 1 season (spring, summer, autumn)by kick-sampling(mesh 500mikrons).Assemblages in springs consisted of crenophilous species and were replaced on 400m by epirithral spec.In tufa fen number of taxa correlated downstream with water temperature(rs=-0.9,p>0.05) and gravel (rs=0.9,p>0.05).Number of individuals correlate with pH (rs-0.90,p>0.05).Numb.of taxa from Sphagnum-fen correlate with Ca(rs=0.9,p>0.005),stones (rs=0.9,p>0.05)and conductivity(rs=0.8, p>0.05).Due to low heterogeneity of conditions in tufa fen numb.of spec. were stable as well as taxocenoses,which varied in season.Sphagnum-fen showed gradient from spring to springbrook(Ca/pH),which increased species richness and numb.of indiv.downstream. |
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