National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Habitatové preference, stanovištní dynamika a management hmyzu vázaného na staré stromy
PLÁTEK, Michal
The thesis presents studies on habitat preferences of beetles associated with senescent, open-grown trees and on dynamics and management of saproxylic habitats. It presents a brief insight into the current issues in the conservation of insects dependent on old trees. It presents the patterns of exploitation by a veteran tree specialist within old open-grown trees and the local patterns of tree exploitation by the same species at sites with different characteristics. Further, it presents a study of the effect of a prunning technique on formation of deadwood microhabitats, and also the importance of active interventions in closed-canopy forests for the communities in temperate lowland woodlands.
Route belts as a organismus biotops
BABKA, Vladimír
Todays landscape is exposed to continually increasing human activities stress. The original biotopes are disturbed and fragmented from small to smaller segments. This fact can negatively influence the biodiversity. The railway line construction is a kind of such model, in this case its planed modernisation. This study deals with a railway embankment segment nr. 190 from Hluboká n. Vlt. to Zbudov. The aim of the work was to prove the railway line as an important and valuable biotope, which needs an enhanced attention. The vegetation biodiversity on four segments was studied. Totally 182 plant species were found with no rare species. The insect (beetles) species living in the wood of old trees were studied near the railway line. There were found 21 families with 52 beetle species where 3 species were rare. These important tree old stands were mapped too. The railway line history of this segment was processed too. The railway line creates a typical biotope with high vegetation biodiversity in this segment. The presence of the rare beetles living in the wood of old trees is more important.

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