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Projects / Programmes source: ARIS

Structure and function of ecosystems

Periods
Research activity

Code Science Field Subfield
1.03.00  Natural sciences and mathematics  Biology   

Code Science Field
P305  Natural sciences and mathematics  Environmental chemistry 
B260  Biomedical sciences  Hydrobiology, marine biology, aquatic ecology, limnology 
B270  Biomedical sciences  Plant ecology 
B280  Biomedical sciences  Animal ecology 
B290  Biomedical sciences  Systematic botany, taxonomy, morphology, phytogeography, chemotaxonomy. Physiology of onvascular plants 
B320  Biomedical sciences  Systematic zoology, taxonomy, zoogeopraphy 
Evaluation (rules)
source: COBISS
Researchers (10)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  05221  PhD Anton Brancelj  Biology  Head  2001 - 2003  600 
2.  05222  PhD Alenka Gaberščik  Biology  Researcher  2001 - 2003  823 
3.  18989  Nataša Gorjanc  Biology  Researcher  2001 - 2003  12 
4.  18341  Andreja Jerebic    Researcher  2001 - 2003  24 
5.  22615  PhD Nataša Mori  Biology  Researcher  2003  163 
6.  18546  PhD Gregor Muri  Public health (occupational safety)  Researcher  2001 - 2003  99 
7.  10903  Milijan Šiško  Biology  Researcher  2001 - 2003  240 
8.  10796  PhD Davorin Tome  Biology  Researcher  2001 - 2003  692 
9.  07390  PhD Olga Urbanc-Berčič  Biology  Researcher  2001 - 2003  277 
10.  21502  PhD Al Vrezec  Biology  Researcher  2001 - 2003  1,041 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0105  National Institute of Biology  Ljubljana  5055784  13,277 
Abstract
At Cerkniško Jezero, a major intermittent lake, work has been focused on the effect of water level fluctuation on nutrient concentrations in the rhisosphere of the common reed (Phragmites communis). The vitality of roots and their distribution along the vertical profile of the substratum have been studied. After prolonged periods of flooding, the vitality of roots has been found to increase, with the consequence that the reed spreads to unoccupied neighbouring areas. The influence of water level fluctuation has also been studied on two amphibian species, Batrachyum trychophyllum and Myosotis palustris. These investigations were carried out as part of the EU project UV-AQTER –“The role of UV-B radiation on aquatic and terrestrial ecosystems: an experimental and functional analysis of the evolution of protective and adaptive mechanisms in plants”. Interdisciplinary studies, combining biology, chemistry, hydrology and geology, have been carried out on three mountain lakes in the Julian Alps. From the biological standpoint, we determined the seasonal variation of the quality and quantity of zooplankton, phytoplankton, periphyton and macrophytes. Microfossils (Cladocera and diatoms) were examined in order to obtain an insight into environmental and climatic changes in the Julian Alps over the past 300 years. Particular attention was paid to the effect of introducing fish into mountain lakes, as recorded in the sediment. Studies of sediment and biota were combined under the European project MOLAR - Measuring and modelling the dynamic response of remote mountain lake ecosystems to environmental changes. A further activity is to determine the amplitude and pattern of migration of zooplankton in a fish-free and clear-water mountain lake. The aim is to examine the effect of light, including UV radiation, on this phenomenon. The first set of samples have been collected. Long term studies on the nesting success of the long ear owl (Asio otus) have continued since their inception in 1984. The number of nests per area, number of eggs and fledglings, their survival rate in relation to the amount of prey and weather conditions have all been recorded.
Most important scientific results Final report
Most important socioeconomically and culturally relevant results Final report
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