Small-Scale Distribution of Aquatic Macroinvertebrates in Two Spring Fens with Different Groundwater Chemistry

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Authors

KŘOUPALOVÁ Vendula BOJKOVÁ Jindřiška SCHENKOVÁ Jana PAŘIL Petr HORSÁK Michal

Year of publication 2011
Type Article in Periodical
Magazine / Source International Review of Hydrobiology
MU Faculty or unit

Faculty of Science

Citation
Doi http://dx.doi.org/10.1002/iroh.201111307
Field Ecology
Keywords springs; fens; macroinvertebrate assemblages; within-site heterogeneity; seasonal variation
Description We examined responses of macroinvertebrate assemblages to environmental and temporal variations along spring source-spring brook transects in two fen habitats, sharply differing in groundwater chemistry, and compared the patterns among individual taxonomical groups. We hypothesised a different importance of environmental heterogeneity and seasonal changes primarily linked to strong tufa precipitation, which causes stronger environmental filtering in the calcareous fen. In concordance, we observed that assemblages of the more homogenous calcareous fen primarily changed over time, due to seasonal shifts in source availability and favourable conditions.
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