scholarly journals Morphological variability of Fraxinus angustifolia Vahl in the north-western Balkans

2011 ◽  
Vol 80 (3) ◽  
pp. 245-252 ◽  
Author(s):  
Kristjan Jarni ◽  
Marjana Westergren ◽  
Hojka Kraigher ◽  
Robert Brus
Keyword(s):  
Morphological Variability ◽  
Stepwise Discriminant Analysis ◽  
Western Balkans ◽  
Phenotypic Differences ◽  
The North ◽  
Designed Experiment ◽  
Fraxinus Angustifolia ◽  
Sun And Shade ◽  
Shade Leaves ◽  
North Western

<em>Fraxinus angustifolia </em>Vahl is a species native in the north-western Balkans, where it has a divided range. Most of its range is located in flood-prone riparian sites in the Pannonian plain but the species is also found on humid sites along some rivers in the Submediterranean region. We analysed morphologic variation within and between five populations (14 trees/population) located in the Subpannonian and Submediterranean region of Slovenia. Thirty two characters were assessed on ca. 80 leaves from each tree which were divided depending on exposure to sunlight (sun and shade leaves), and 8 traits on each fruit (ca. 50 fruits/tree). A hierarchically designed experiment using analysis of variance confirmed the significant contribution of all the analysed hierarchical levels of variation to the total variation. The results show that the differences between the trees in a single population are the greatest factor of variability of leaves, followed by differences between populations and differences which are the result of variation in exposure to sunlight. Leaves in shade positions are typically larger than those in sunny positions, and they have broader and shorter-pointed leaflets; in this feature they are very similar to the leaves of <em>F. excelsior</em>. Stepwise discriminant analysis showed that the traits which refer to the leaflet number and length are the best differentiating traits between individual populations. The Submediterranean population Dragonja stands out with the smallest leaves and the population Lijak from the same region is the most similar to Dragonja for most morphological traits. In general, phenotypic differences between the Subpannonian and the Submediterranean populations of <em>F. angustifolia </em>are minor and indistinct. Based on the differences ascertained by the study, we can only confirm the presence of <em>F. angustifolia </em>subsp. <em>oxycarpa </em>(Bieb. ex Willd.) Franco et Rocha Alfonso in this part of its natural range.

Introduction

2016 ◽  
pp. 1-8
Author(s):  
Paul Huddie
Keyword(s):  
Black Sea ◽  
Russian Empire ◽  
The Black Sea ◽  
Western Balkans ◽  
Crimean War ◽  
Black Sea Region ◽  
The North ◽  
The Russian Empire ◽  
North Western

The year 2014 marked the 160th anniversary of the beginning of the Crimean War, 1854–6. It was during that anniversary year that the names of Crimea, Sevastopol, Simferopol and the Black Sea re-entered the lexicon of Ireland, and so did the terms ‘Russian aggression’, ‘territorial violation’ and ‘weak neighbour’. Coincidentally, those same places and terms, and the sheer extent to which they perpetuated within Irish and even world media as well as popular parlance, had not been seen nor heard since 1854. It was in that year that the British and French Empires committed themselves to war in the wider Black Sea region and beyond against the Russian Empire. The latter had demonstrated clear aggression, initially diplomatic and later military, against its perceived-to-be-weak neighbour and long-term adversary in the region, the Ottoman Empire, or Turkey. As part of that aggression Russia invaded the latter’s vassal principalities in the north-western Balkans, namely Wallachia and Moldavia (part of modern-day Romania), collectively known as the Danubian Principalities. Russia had previously taken Crimea from the Ottomans in 1783....

Weed vegetation in the north-western Balkans: diversity and species composition

Weed Research ◽  
2009 ◽  
Vol 49 (6) ◽  
pp. 602-612 ◽  
Author(s):  
U ŠILC ◽  
S VRBNIČANIN ◽  
D BOŽIĆ ◽  
A ČARNI ◽  
Z DAJIĆ STEVANOVIĆ
Keyword(s):  
Species Composition ◽  
Western Balkans ◽  
The North ◽  
North Western

scholarly journals The distribution and status of Sage Skipper Muschampia proto (Ochsenheimer, 1808) (Lepidoptera, Hesperiidae) at the limit of its range in the north-western Balkans

2020 ◽  
Vol 43 ◽  
pp. 211-220
Author(s):  
Toni Koren ◽  
Matea Martinović ◽  
Dubravko Dender
Keyword(s):  
Conservation Status ◽  
Balkan Peninsula ◽  
Western Balkans ◽  
Limited Distribution ◽  
The North ◽  
Literature Overview ◽  
The Status ◽  
North Western ◽  
Single Locality

We analysed the status and distribution of the Sage Skipper Muschampia proto (Ochsenheimer, 1808), a rather rare and local Hesperiidae species at the edge of its range in the north-western part of the Balkan peninsula, mainly Croatia and Bosnia &amp; Herzegovina. In order to determine the species’ presence in the region, we mapped the occurrence of its hostplant, Jerusalem Sage Phlomis fruticosa Linnaeus (Lamiaceae). We also summarized all the available knowledge on M. proto in the Balkan Peninsula and provided a literature overview for each country this species has been recorded in so far. In Croatia, the distribution of M. proto is very limited and is located only in the wider surroundings of Dubrovnik city. In the present paper, we also provide the first and only record of M. proto in Bosnia &amp; Herzegovina, from a single locality close to the Croatian border in the Dubrovnik area. Due to its limited distribution in both countries, we propose that the conservation status of the species should be changed from none to vulnerable.

scholarly journals Mesophilous Quercus frainetto Dominated Forests from Western Balkans

2020 ◽  
Vol 11 (2) ◽  
pp. 97-110
Author(s):  
Vladimir Stupar
Keyword(s):  
Deciduous Forest ◽  
Dominant Role ◽  
Field Research ◽  
Balkan Peninsula ◽  
Western Balkans ◽  
The North ◽  
Quercus Frainetto ◽  
North Eastern ◽  
New Association ◽  
North Western

Hungarian oak (Quercus frainetto) has dominant or co-dominant role in many thermophilous deciduous forest communities in the Balkan Peninsula. However, recent field research in the north-western margin of its range has revealed that some stands have a pronounced mesophilous character, which was also supported by data from the literature. This paper aims to analyze this mesophilous community of Hungarian oak which is found in north-western Serbia, north-eastern Bosnia and Herzegovina (B&amp;H) and eastern Croatia. Numerical analysis, which included classification and ordination of all 474 available relevés of Hungarian oak forests from the western and central Balkans, along with the 43 relevés of mesophilous forests of oak-hornbeam from B&amp;H, have shown that 83 mesophilous Hungarian oak relevés are floristically and ecologically more similar to mesophilous forests of sessile oak-hornbeam (Erythronio-Carpinion) than to xero-thermophilous forests of Qeurcion confertae. The new association Carpino betuli-Quercetum frainetto ass. nova hoc loco was described, floristically and ecologically characterized and assigned to mesophilous oak-hornbeam forests of Erythronio-Carpinion. The study also discusses the syntaxonomical issues of Quercion confertae and its central association Quercetum frainetto-cerridis, considering the problem of the lack of good diagnostic species for both syntaxa, and introduces possible ways of dealing with these issues.

U-Pb on Zircon and Monazite Geochronology of Granites of the Zhytomyr and Sheremetiv Complexes, the North-Western Region of the Ukrainian Shield

2018 ◽  
Vol 40 (2) ◽  
pp. 63-85 ◽  
Author(s):  
L. Shumlyanskyy ◽  
L. Stepanyuk ◽  
S. Claesson ◽  
K. Rudenko ◽  
A. Bekker
Keyword(s):  
Ukrainian Shield ◽  
Western Region ◽  
The North ◽  
North Western

Assessment of the Reactions of Algal Communities to Influence of Climatic Factors in the North-Western Black Sea Ecosystem

2018 ◽  
Vol 20 (2) ◽  
pp. 121-134 ◽  
Author(s):  
G. G. Minicheva ◽  
V. N. Bolshakov ◽  
E. S. Kalashnik ◽  
A. B. Zotov ◽  
A. V. Marinets
Keyword(s):  
Black Sea ◽  
Climatic Factors ◽  
Algal Communities ◽  
The North ◽  
North Western
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