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Vliv změn v lesních porostech na stav a vývoj populace mravence \kur{Formica aquilonia} na hoře Kleť
 NĚMEC, Josef
This thesis reviews the role of red wood ants (Formica s. str.) in forest ecosystems and the impact of changes in forest environment on their population. In the practical part, it investigates the impact wind-throw Kyrill and salvage logging on large nest complex of protected Formica aquilonia ants on the Kleť mountain. This is done by combining and evaluating historical data with currently collected data of the nests distribution and their characteristics. We showed that the wind throw and subsequential salvage logging decreased the number of nests only temporarily and the impacted clear-cuts were well recolonized by F. aquilonia after twelve years. Nevertheless, the nests were smaller and their future success is questionable due to still changing environmental conditions. Interestingly, a threatened xenobiont ant Formicoxenus nitidulus was found in 23 % of the F. aquilonia nest in 2019.
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