scholarly journals Dinaric Karst - An Example of Deforestation and Desertification of Limestone Terrain

10.5772/34275 ◽  
2012 ◽  
Author(s):  
Andrej Kranjc
Keyword(s):  
Dinaric Karst

scholarly journals Microhabitat selection and distribution of functional feeding groups of mayfly larvae (Ephemeroptera) in lotic karst habitats

2018 ◽  
pp. 17 ◽  
Author(s):  
Marina Vilenica ◽  
Andreja Brigić ◽  
Michel Sartori ◽  
Zlatko Mihaljević
Keyword(s):  
Water Current ◽  
Functional Feeding Groups ◽  
Feeding Strategies ◽  
Microhabitat Selection ◽  
Dinaric Karst ◽  
Feeding Groups ◽  
Microhabitat Preferences ◽  
One Year ◽  
Physical And Chemical ◽  
Chemical Water

Research examining mayfly ecology in karst streams and rivers has increased in recent years, though microhabitat preferences remain poorly characterized. We examined mayfly assemblage taxonomy, functional feeding groups and microhabitat preferences in two contrasting lotic Dinaric karst catchments, one pristine and one anthropogenically impacted. At monthly intervals over a one-year period, all major microhabitats (i.e. dominated by boulders, cobbles, sand, silt, mosses, or angiosperms) were sampled at sites spanning springs, upper, middle and lower river reaches, and tufa barriers. In both catchments, mayfly species richness was comparable among microhabitats, while mayfly abundance was highest on mosses and lowest on silt. NMDS ordination did not group assemblages according to microhabitat type, which may reflect the greater influence of physical and chemical water properties. In both catchments and all microhabitats, mayfly assemblages were dominated by grazers/scrapers at upstream sites and by detritivores at downstream sites. Active filter feeders were more abundant in microhabitats with silt substrates and lower current velocities. This study demonstrated that certain mayfly species strongly preferred a specific microhabitat type, reflecting their water current preferences and feeding strategies, while other species shifted between microhabitats, likely in search of food resources and shelter. The results emphasize the importance of habitat heterogeneity in supporting diverse communities in karst rivers.

Les bauxites de la province dinarique (Yougoslavie)

1964 ◽  
Vol S7-VI (3) ◽  
pp. 382-388 ◽  
Author(s):  
Alexandre Grubic
Keyword(s):  
Dinaric Karst ◽  
Long Time

Abstract The Dinaric karst of Yugoslavia has many deposits of red and white bauxites ranging in age from Triassic to Tertiary. Some deposits in Slovenia and Bosnia are of undetermined age. The number of bauxite beds at different stratigraphic horizons in each locality was determined by the number of periods of emergence. The Ljesev stup-Bijele poljane and Budos areas remained emergent a long time, and have thick deposits. Several horizons of bauxite were formed in Dalmatia, Herzegovina, and Vojnik-Prekornica. A brief emergence resulted in single bauxite deposits in Velebit, Lika, Istria, Grmec, and Bespelj.

scholarly journals  Sustainable forestry and iron compounds in karstic soils: qualitative and semi-quantitative results focused on the occurrence of Fe-compounds on mineral particles

2012 ◽  
Vol 58 (No. 9) ◽  
pp. 410-424
Author(s):  
K. Rejšek ◽  
M. Mišič ◽  
F. Eichler
Keyword(s):  
Mineralogical Composition ◽  
Sustainable Forestry ◽  
New Materials ◽  
Iron Compounds ◽  
Dinaric Karst ◽  
Mineral Particles ◽  
Bohemian Karst ◽  
Quantitative Results ◽  
Moravian Karst

Relic karstic soils in nine localities in the Dinaric Karst in Slovenia, five localities in the Moravian Karst and four localities in the Bohemian Karst were sampled for soil scientific, mineralogical and petrological studies focused on the presentation of descriptive aspects of particular iron compounds. The macroscopy and microscopy of Fe<sup>2+</sup> and Fe<sup>3+ </sup>compounds were determined and an interpretation of these data was performed aimed at describing sources and their palaeotransports. The presented results show that the studied karstic soils have a heterogeneous petrographical and mineralogical composition when, depending on circumstances, hematite does not dominate and goethite prevails over it or it is an opposite. Results from the chosen methods reinforce sources of the new materials as the crucial factor for the studied karstic soils. &nbsp;

scholarly journals Regional Isotopic Signatures of Groundwater in Croatia

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1983 ◽  
Author(s):  
Željka Brkić ◽  
Mladen Kuhta ◽  
Tamara Hunjak ◽  
Ozren Larva
Keyword(s):  
Stable Isotopes ◽  
Groundwater Age ◽  
Dinaric Karst ◽  
Isotopic Signatures ◽  
Carbonate Aquifers ◽  
Groundwater Samples ◽  
Tracer Methods ◽  
Recharge Rates ◽  
Northern Croatia ◽  
Isotope Content

Tracer methods are useful for investigating groundwater travel times and recharge rates and analysing impacts on groundwater quality. The most frequently used tracers are stable isotopes and tritium. Stable isotopes of oxygen (δ18O) and hydrogen (δ2H) are mainly used as indicators of the recharge condition. Tritium (3H) is used to estimate an approximate mean groundwater age. This paper presents the results of an analysis of stable isotope data and tritium activity in Croatian groundwater samples that were collected between 1997 and 2014 at approximately 100 sites. The composition of the stable isotopes of groundwater in Croatia originates from recent precipitation and is described using two regional groundwater lines. One of them is applied to groundwater accumulated in the aquifers in the Pannonian part of Croatia and the other is for groundwater accumulated in the Dinaric karst of Croatia. The isotope content shows that the studied groundwater is mainly modern water. A mix of sub-modern and modern water is mostly accumulated in semi-confined porous aquifers in northern Croatia, deep carbonate aquifers, and (sub)thermal springs.

scholarly journals Environmental factors affecting mayfly assemblages in tufa-depositing habitats of the Dinaric Karst

2017 ◽  
pp. 14 ◽  
Author(s):  
Marina Vilenica ◽  
Vlatka Mičetić Stanković ◽  
Michel Sartori ◽  
Mladen Kučinić ◽  
Zlatko Mihaljević
Keyword(s):  
Environmental Factors ◽  
Dinaric Karst ◽  
Factors Affecting
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