Publication details
The ecological effect of drought on the macroinvertebrate fauna of a small intermittent stream - an example from the Czech Republic
| Title in English | The ecological effect of drought on the macroinvertebrate fauna of a small intermittent stram - an example from the Czech Republic |
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| Authors | |
| Year of publication | 2007 |
| Type | Article in Periodical |
| Magazine / Source | International Review of Hydrobiology |
| MU Faculty or unit | |
| Citation | |
| Field | Ecology |
| Keywords | macroinvertebrates; intermittent stream; drought |
| Description | The impact of an unstable hydrological regime on macroinvertebrates in an intermittent stream (Gránický brook, Czech Republic) was investigated in two successive years with differing climatic conditions. The brook has a specific character with periodic summer droughts in particular stretches. Ten series of macroinvertebrate samples were taken from two sampling sites between April 2002 and October 2003. Total abundance, taxa richness, main faunal groups and life strategies were assessed in order to describe the changes in the macroinvertebrate assemblages. Periodic dry periods caused a decrease in macroinvertebrate density in the intermittent stretch, whereas they had no negative influence on number of taxa. Before the drought, the density of permanent fauna decreased and the number of r-strategists rose and stayed at a high level in after-drought period. |
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