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Communities of epigeic beetles (\kur{Coleoptera}) on the plantations of trees for energetic purposes
ZUKAL, Radim
The aim of the study was to examine communities of epigeic beetles in the plantations of fast-growing trees (poplar clone Japanese J - 105 (Jap = - 105, Max - 4, Maxvier) and surrounding habitats (Zea mays L.). A cover of Zea mays L. was used as an area for comparison. Sampling was carried out in 2012 by using the method of epigeic beetles in pitfall traps (period from May to September). During the sampling, altogether 1054 specimens and 57 species of epigeic beetles were collected. In the area of fast-growing trees ?Na Vrbovecku? 528 specimens were collected which is many times more than in other researched areas. In the cover of Zea mays L. in the area "Na Vrbovecku" 293 specimens were collected and in the zone of fast-growing trees "U rybníka" 233 specimens were catched; notice the high similarity in the number of collected specimens. At all sites surveyed the expansive species (E) outnumbered the II relics. There were about 70% of expansive species in the cover of Japanese poplar found and in the cover of Zea mays L. there were about 90% of expansive species found. The number of more adaptable species- RII category- found in the cover of Japanese poplar was approximately 30% unlike the number of the same species found inside the Zea mays L. cover was only 12%. The rare species Xantholinus gallicus of the RI category was found in the plantations of fast-growing trees "U rybníka". The index of anthropogenic impact on communities (ISD) was very low in studied plots. In the Zea mays L.cover the index was only 6 points, unlike in the cover of Japanese poplar where the index reached 24 points. Yet all researched areas show high anthropogenic impact. Based on the obtained results (epigeic beetles), it seems that plantations of fast-growing trees have a positive impact on communities of epigeic beetles in cultural landscape. Since the research was always carried out on a farmed landscape, the impact of surrounding landscape on gained results is minimal and insignificant.
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Communities of epigeic beetles in the plantations of fast growing plant species for energetic purposes and in surrounding biotopes
JAHNOVÁ, Zuzana
The aim of the work was to study the communities of epigeic beetles in plantations of energetic plants (Dactylis glomerata, Arrhenatherum elatius, Phalaris arundinacea, Helianthus tuberosus) and in surrounding lawn biotope. The method of pitfall trapping was used for beetle sampling from 2008 to 2010 during the growing season. Carabid beetles (Carabidae) and rove beetles (Staphylinidae) were used as bioindicators. In total 69 species and 1789 individuals were captured and evaluated. Eurytopic species were more common than stenotopic in all habitats, also the value of the index of beetle communities was low in all plots. RDA analysis proved the influence of surrounding biotope on beetle communities. It was concluded that communities of epigeic beetles might be also affected by the climatic factors, long termed population fluctuations of individual species, edge effect and microclimate inside the vegetation.
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Communities of epigeic beetles in the plantations of fast growing plant species for energetic purposes
JAHNOVÁ, Zuzana
The aim of the work was to study the communities of epigeic beetles in plantations of fast growing plant species for energetic purposes. The method of pitfall trapping was used for beetle sampling. Four plots of fast growing plants were studied {--} Dactylis glomerata, Arrhenatherum elatius, Phalaris arundinacea and Helianthus tuberosus. Carabid beetles (Carabidae) and rove beetles (Staphylinidae) were used as bioindicators. It was found 18 species and 45 individuals of family Staphylinidae and 25 species and 594 individuals of family Carabidae (43 species nad 639 individuals in total). The highest number of species was found on plot of Dactylis glomerata (28 species) and the highest number of individuals was found on plot of Phalaris arundinacea (246 individuals). The majority of the beetles were carabid beetles belonging to the next species - Poecilus cupreus, Pseudophonus rufipes, Calathus fuscipes, Harpalus aeneus and Nebria brevicollis. These species occured in all plantations. Eurytopic species were more common than stenotopic in all habitats. The smallest value of index of human impact and so the biggest human impact was found in reed canary-grass. It is supposed that the communities were influenced by the surrounding biotope (lawn) and the weather during the period of experiment.
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