scholarly journals Horizontal Precipitation Gradients in Alpine Valleys of Northwestern Slovenia

Dela ◽  
2018 ◽  
pp. 5-36
Author(s):  
Matej Ogrin ◽  
Erika Kozamernik
Keyword(s):  
Precipitation Regime ◽  
The North ◽  
Accuracy Of Measurements ◽  
Julian Alps ◽  
The Alps ◽  
Mountainous Landscapes ◽  
Micro Level ◽  
Mountain Landscapes ◽  
North Western ◽  
Alpine Valleys

Mountain landscapes are the areas characteristic for a great spatial variability of precipitation amounts. On the windward sides of orographic barriers there is intense rising of air, and on the lee sides air descends. The intensity of the two processes is manifested in great differences in precipitation amounts at short distances. Although the network of precipitation stations is the densest in the Alps of all mountain regions in the world, precipitation regime at the micro level continues to be poorly known at many a place. Precipitation stations in mountainous landscapes are the most numerous in lower-lying and settled areas, whereas they are rather few in the high-lying areas. Also the accuracy of measurements is problematic in the mountains. As a result, the information on precipitation regime is inadequate right in the areas with the largest precipitation amounts. This means that the estimation of water balance is inadequate, and it is difficult to forecast the precipitation-related processes, such as torrential floods, landslides, avalanches, and the like. The present paper deals with horizontal precipitation gradients in the Alpine valleys of Planica, Krnica and the stream Beli potok which are all situated in the north-western part of the Slovenian section of the Julian Alps.

scholarly journals Phytosociological analysis of beech forests in the Žumberak and Samobor highlands (Croatia)

Hacquetia ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 119-165
Author(s):  
Željko Škvorc ◽  
Jozo Franjić ◽  
Daniel Krstonošić ◽  
Krunoslav Sever
Keyword(s):  
Indicator Values ◽  
Beech Forests ◽  
Data Set ◽  
The North ◽  
Plant Associations ◽  
Ecological Features ◽  
Pannonian Plain ◽  
The Alps ◽  
Shallow Soils ◽  
North Western

Abstract The Žumberak and Samobor highlands are situated in the north-western part of Croatia where the characteristics of the Dinarides, the Alps and the Pannonian Plain meet. The greater part of the area is occupied by beech forests. The aim of the study was to determine the syntaxonomic affiliation of these forest communities, and to explore their floristic and main ecological features. Numerical analyses of floristic compositions were conducted on a data-set consisting of 144 new relevés and 99 relevés from the existing literature. Relevés were made following the standard Braun-Blanquet method. For descriptions of ecological conditions Ellenberg’s indicator values were used. Six plant associations and two subassociations of beech forests were established in Luzulo-Fagion and Aremonio-Fagion alliances. The higher altitudes of the studied area are occupied by ass. Cardamini savensi-Fagetum, whereas the lower altitudes are occupied by ass. Lamio orvalae-Fagetum and Hacquetio-Fagetum. Ass. Hacquetio-Fagetum spreads on southern slopes and ridges, whereas ass. Lamio orvalae-Fagetum occurs in ditches and on northern slopes. In the warmer habitats with shallow soils on a dolomite base ass. Ostryo-Fagetum occurred. A small part of the area is characterized by silicate substrate which is occupied by ass. Luzulo-Fagetum and Gentiano asclepiadeae-Fagetum.

Phylogeography of Hepialus humuli (L.) (Lepidoptera: Hepialidae) in Europe: short distance vs. large scale postglacial expansions from multiple Alpine refugia and taxonomic implications

2014 ◽  
Vol 45 (3) ◽  
pp. 209-250 ◽  
Author(s):  
Thomas J. Simonsen ◽  
Peter Huemer
Keyword(s):  
North Atlantic ◽  
Glacial Maximum ◽  
Northern Europe ◽  
The North ◽  
North Eastern ◽  
The Alps ◽  
Morphological Differences ◽  
The Last Glacial Maximum ◽  
North Western ◽  
The Last Glacial

We explore the phylogeography of the common ghost moth, Hepialus humuli (Linnaeus) in Europe based on 1451 bp Cytochromeoxydase Subunit 1 (COI) mtDNA and 617 bp Ribosomal protein Subunit 5 (RpS5) ntDNA with special focus on populations in the Alps and surrounding regions, as well as northern Europe. While RpS5 fails to recover any phylogeographic signal, COI reveals a remarkable pattern with central European populations separated in four well-defined groups. The most divergent group is restricted to northern Italy and southern Austria and geographically isolated from the others; one group is found only in the central-northern region south of Lake Constance (Liechtenstein, western Austria) and co-occurs with the two other groups, from north-eastern Alps and north-western Alps respectively. We conclude that the southern and central groups are relicts from a previous Pleistocene glacial maximum, whereas the two latter groups were isolated during the last glacial maximum in a western and an eastern refugium respectively, the exact extends of these refugia are uncertain. The central group has subsequently interbred with the two other northern groups and probably only exists today as ancient mtDNA haplotypes. The north-western and north-eastern groups have spread considerably and overlap over a large part of their range in the Alps and surrounding areas. Following the last glacial maximum, the north-western group spread into western Europe as far as Normandy, but the English Channel has apparently acted as a dispersal barrier. The north-eastern group spread into eastern and northern Europe, including Scandinavia, and possibly into the Balkans as well. The British Isles as well as the North Atlantic islands groups, the Faroese and Shetlands were colonised from southern Scandinavia or northern Germany, likely via Doggerland. Despite the deep divergence in mtDNA between the populations in Italy and southern Austria, and the remaining populations, there are no consistent morphological differences, and we conclude that there is no evidence that the southern populations should be considered a separate species. Although the populations in the Shetland and Faroese islands are phenotypically distinct from most other populations, we find no genetic or genitalia morphological differences between these populations and the rest. We therefore conclude that they display what can be termed cryptic genetic homogeneity. As the phenotypic variation is not unique to these populations either, we synonymise the North Atlantic subspecies H. humuli thulensis Newman syn.n. with H. humuli humuli.

scholarly journals Legends of Places as Part of the Sustainable Development of Regions

2021 ◽  
Vol 81 ◽  
pp. 157-178
Author(s):  
Barbara Ivančič Kutin ◽  
◽  
Monika Kropej Telban ◽  
Keyword(s):  
Sustainable Development ◽  
Natural Environment ◽  
The Sustainable Development ◽  
Environment Quality ◽  
The North ◽  
Research Activities ◽  
Narrative Tradition ◽  
First Case ◽  
The Alps ◽  
North Western

Many newly established thematic routes and parks include narrative traditions to be experienced in their natural environment. Quality products of this kind are the result of well-developed concepts that follow expert guidelines and strategies and can be, as such, part of sustainable tourism, which strives to preserve ties with tradition to the greatest extent possible. This article includes some examples of different presentations of narrative tradition or local legends in places and discusses the problems with which such presentations cope. The article particularly discusses two examples of thematic trails that are based on professional folklore and ethnological research. The first case involves research activities that served as the foundation for thematic storytelling routes in the eastern part of the Alps – Pohorje above Slovenska Bistrica in Slovenia – and in central Istria in Croatia. The second example shows the influence of a thematic trail on the knowledge about local narrative tradition among schoolchildren in Bovec in the north-western part of Slovenia.

scholarly journals Effects of Climate Change on Mountain Waters: A Case Study of European Alps

2018 ◽  
Vol 8 (4) ◽  
pp. 3234-3237
Author(s):  
A. N. Laghari ◽  
G. D. Walasai ◽  
A. R. Jatoi ◽  
D. K. Bangwar ◽  
A. H. Shaikh
Keyword(s):  
Water Cycle ◽  
Late Summer ◽  
Warming Trend ◽  
Vital Role ◽  
Low Flow ◽  
European Alps ◽  
Precipitation Regime ◽  
North West ◽  
The North ◽  
The Alps

The Alps play a vital role in the water supply of the region through the rivers Danube, Rhine, Po and Rhone while they are crucial to the ecosystem. Over the past two centuries, we witnessed the temperature to increase by +2 degrees, which is approximately three times higher than the global average. Under this study, the Alps are analyzed using regional climatic models for possible projections in order to understand the climatic changes impact on the water cycle, particularly on runoff. The scenario is based on assumptions of future greenhouse gases emissions. The regional model results show the consistent warming trend in the last 30-year span: temperature in winter may increase by 3 to 4.5°C and summers by 4 to 5.5°C. The precipitation regime may also be altered: increasing about 10-50% in winter and decreasing about 30-60% in summer. The changes in the amount of precipitation are not uninformed. Differences are observed particularly between the North West and South East part of the Alps. Due to the projected changes in alpine rainfall and temperature patterns, the seasonality of alpine flow regime will also be altered: massive rise will occur in winter and a significant reduction in summer. The typical low flow period during winter will also be shifted to late summer and autumn.

Patzkea paniculata grasslands in the north-western Dinarides – a crossroad between the Alps and the Balkan mountains

2020 ◽  
Vol 50 (3) ◽  
pp. 279-295
Author(s):  
Antun Alegro ◽  
Vedran Šegota ◽  
Nina Vuković ◽  
Eva Kabaš ◽  
Dmitar Lakušić
Keyword(s):  
The North ◽  
The Alps ◽  
North Western ◽  
Balkan Mountains

scholarly journals Using stable isotopes and major ions to identify recharge characteristics of the Alpine groundwater-flow dominated Triglavska Bistrica River

Geologija ◽  
2021 ◽  
Vol 64 (2) ◽  
pp. 205-220
Author(s):  
Luka SERIANZ ◽  
Sonja CERAR ◽  
Polona VREČA
Keyword(s):  
River Flow ◽  
Major Ions ◽  
Sampling Site ◽  
Recharge Area ◽  
The North ◽  
Glaciofluvial Deposits ◽  
Julian Alps ◽  
Alpine River ◽  
Groundwater Exchange ◽  
North Western

Triglavska Bistrica is a typical Alpine river in the north-western part of Slovenia. Its recharge area includes some of the highest peaks in the Julian Alps. The hydrogeological conditions and flow of the river depend largely on groundwater exchange between the karstified aquifer in the carbonate rocks and the intergranular aquifer in the glaciofluvial deposits. The average volume of the river flow is up to several m3/s. In this study, water samples from different locations along the river were analysed for stable isotope ratios of oxygen and hydrogen, major ions, and concentration of tritium activity. The correlation of major ions suggests that the recharge area consists of both limestone and dolomite rocks. The δ18O and δ2H values decrease downstream, implying that the average recharge elevation increases. At the downstream sampling site V-5, located approx. 300 m upstream from the confluence of the Sava Dolinka River, the calculated mean recharge altitude is estimated to be 1,996 m.

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