In published paper of invited lecture at international symposium Bioscience and Society entitled Ecosystems – interdependence of living systems in Ljubljana in October 2008 the most recent findings on interspecific interactions were presented with special focus given on interaction complexes and indirect interactions, which were studied within this project. In overview this theme was presented through different aspects of interaction complexes including some own studies.
In part of the project we have focused on evaluation of beetle populations. This issue is quite problematic in Slovenia and Europe due to the lack of comparable population estimations and sampling method validations. For each method specific data evaluation is needed. In the contribution the data of currently available quantitative beetle studies supplemented with own data were collected and reference tables were prepared for validation of relative densities. The contribution will be useful for further population studies of beetles in Slovenia as a reference study.
The Ural Owl is a species of high conservation importance in Europe. Therefore special monograph for the species were prepared followed by international symposium in Germany. In the contribution for Slovenia the overview of species’ ecology and ecosystem importance in the scope of interaction studies were presented based manly on date from original own research. In Slovenia we established that as a top predator species the Ural Owl play a role of a key species in a montane mixed forest ecosystem, which are covering the major part of the country.
The paper is dealing with conservation evaluation of local beetle fauna. On the example of Natura 2000 site (Boč-Donačka gora) the usual qualitative faunal analysis is supplemented with quantitative population analysis of discussed beetle species. The study is an example of use of larger specter of quantitative sampling methods in selected area. With this manner it is possible to get detailed overview of local fauna composition and structure. This is the first example of practical use of reference tables of relative beetle densities published in one of previous papers.
In the paper new approaches for analysis of historical and recent data in the scope of global climate change effects on selected beetle species were set. In this preliminary work it was set that global warming have quite different effects on the seasonal dynamic of species due to their phenological patterns. The analysis of data between years 1900 and 2007 confirmed that in early spring species there is no effect of global warming on their seasonal dynamic, while in late summer species the significant move of seasonal activity to earlier late spring period was evident.