The intermittent Lake Cerknica: Various faces of the same ecosystem

Gaberščik, Alenka; Urbanc‐Berćić, Olga; Kržič, Nina; Kosi, Gorazd; Brancelj, Anton

doi:10.1111/j.1440-1770.2003.00228.x

Cited by 30 publications

(22 citation statements)

References 10 publications

(7 reference statements)

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“…In line with the above, the water quality monitoring indicated the lowest amounts of nutrients in the lake water, while relatively high content was measured in the surface tributary Cerkniščica and moderate in the karst tributaries, even though they could occasionally bring nutrients from distant areas (Gaberščik, Kosi, Krušnik, Urbanc-Berčič, & Bricelj, 1994;Gaberščik et al, 2003).…”

Section: Other Processesmentioning

confidence: 98%

See 1 more Smart Citation

Water Regime Changes and the Function of an Intermittent Wetland

Dolinar

Šraj

Gaberščik

2010

Water and Nutrient Management in Natural and Constructed Wetlands

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The intermittent Lake Cerknica comprises a variety of wetland habitats, which support numerous species, many of them included on the Red List. The exchange of wet and dry periods influences the through-flow of energy and the turnover of matter in the lake. In the last five decades, the water level fluctuations were highly variable. Since 1961 the May and June water levels have shown a decreasing trend line, in October the trend line revealed an increase, while from November to February no changes of trend could be observed. High water levels in winter and during the peak vegetation season negatively affected reed productivity. The decomposition of reed leaves increased with the wetness of the survey location, while the soil mineralisation rate was only slightly related to soil wetness. In comparison to the tributaries, the lake water contained relatively low amount of nutrients, which was a consequence of a densely vegetated area.Keywords Decomposition · Evapotranspiration · Intermittent lake · Phragmites australis · Wetland habitats IntroductionLake Cerknica is an intermittent wetland appearing at the bottom of the Cerknica polje karst depression. It is characterised by extreme inter-annual water level fluctuations, which are the result of a high precipitation rate and water runoff into an extensive underground drainage system in carbonate rocks. The catchment area of the lake extends over 475 km 2 . The majority of the lake's inflow consists of karstic waters (80%), while only one tributary brings surface water (15%). The amount of water in the lake depends on precipitation and potential evapotranspiration of the

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Section: Other Processesmentioning

confidence: 98%

“…spawning of fish and nesting of birds, as well as mineralisation and decomposition (Boulton & Brock, 1999;Gaberščik, Urbanc-Berčič, Kržič, Kosi, & Brancelj, 2003;Dinka et al, 2008). Water level fluctuations create a variety of habitats which support diverse communities.…”

mentioning

confidence: 98%

Water Regime Changes and the Function of an Intermittent Wetland

Dolinar

Šraj

Gaberščik

2010

Water and Nutrient Management in Natural and Constructed Wetlands

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“…Lake Cerknica forms on the bottom of a karstic polje when large seasonal water runoff exceeds the capacity of the underground drainage system in carbonate rocks (Gaberščik, Urbanc-Berčič, Kržič, Kosi, & Brancelj, 2003). As a result, a variety of wetland habitats with spatial and/or temporal variability can be found on the seasonally flooded lakebed, ranging from occasionally flooded wet meadows to a range of habitats with frequent water level fluctuations.…”

Section: Mycorrhiza In Different Habitats Of An Intermittent Wetlandmentioning

confidence: 99%

The Presence of Mycorrhiza in Different Habitats of an Intermittent Aquatic Ecosystem

Dolinar

Šraj

Pongrac

et al. 2010

Water and Nutrient Management in Natural and Constructed Wetlands

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Environmental conditions in wetlands were long thought to suppress mycorrhizal fungi and it has been assumed that mycorrhiza in wetlands is limited and is of little significance. This contribution summarises the presence of arbuscular mycorrhizal (AM) fungi and dark-septate endophytes (DSE) in different habitats of the intermittent Lake Cerknica. Mycorrhizal colonisation of wetland plants from the following wetland habitats was analysed: (1) frequently inundated small depressions in the lakebed colonised by amphibious plants; (2) P. australis stands covering large parts of the lake area; and (3) wet meadows surrounding the lake area colonised by different Schoenus species. All of the examined amphibious species were found to be mycorrhizal, however terrestrial shoots were more mycorrhizal than aquatic shoots. In the former mycorrhizal frequency F% was up to 100% and mycorrhizal intensity M% up to 67%, while F% was up to 80% and M% up to 16% in the latter. Mycorrhizal colonisation of P. australis with AM and DSE fungi was confirmed in plants growing in different soils and water regimes (17% < F% < 50%; 0.6% < M% < 3%). In the two Schoenus species, F% was up to 99% and M% was up to 14%. According to the literature this is the first detailed report on the presence of AM and DSE mycorrhiza in S. ferrugineus and S. nigricans.

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“…to complete their life cycle. Aquatic vegetation of the Cerknica Lake and its tributaries has been described in numerous articles [171,172].…”

Section: Montainous Regionmentioning

confidence: 99%

Aquatic and Wetland Vegetation Along the Sava River

Karadžić

Jarić

Pavlović

et al. 2014

The Handbook of Environmental Chemistry

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Diverse hydrological, climate, and soil conditions along the Sava River caused significant diversification of vegetation. Therefore, the objective of this chapter is to integrate and present all the available data on variability of the aquatic and riparian plant communities along the Sava River and its main tributaries as well as to identify the environmental factors, which are related to the distribution of different vegetation types. Special attention has been also paid on the detection of threats for rare and endangered plant species and fragile wetland ecosystems along the Sava River. Based on data review, syntaxonomic revision of aquatic and riparian vegetation based on common, pan-European databank is required. Ecological studies that involve inventory, monitoring, modeling, and prediction of changes in populations, ecological communities, and ecosystems require both georeferenced databases and computational tools for application of statistical methods.

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The intermittent Lake Cerknica: Various faces of the same ecosystem

Cited by 30 publications

References 10 publications

Water Regime Changes and the Function of an Intermittent Wetland

Water Regime Changes and the Function of an Intermittent Wetland

The Presence of Mycorrhiza in Different Habitats of an Intermittent Aquatic Ecosystem

Aquatic and Wetland Vegetation Along the Sava River

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