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Contribution to the knowledge of the Odonata fauna of Bosnia and Herzegovina – Results of the ECOO 2012
No full textAs a part of the 2nd European Congress on Odonatology (ECOO 2012), which was held in the beginning of July 2012 in Belgrade (Serbia), a post congress excursion to Bosnia and Herzegovina was organized. Between 6 and 12 August 2012, altogether 36 localities in three biogeographical regions throughout Bosnia and Herzegovina were surveyed, and 52 dragonfly species were found. This represents 83% of the hitherto recorded dragonfly species for the country. The most significant results are the second record and a new locality of Somatochlora metallica, second record of Coenagrion hastulatum, and first observation of the strong population of Lindenia tetraphylla for the country. New records of rare and/or threatened species, i.e. Coenagrion ornatum, Ceriagrion tenellum, Caliaeschna microstigma, Cordulegaster heros and Selysiothemis nigra, are also reported. The records of the most interesting species are briefly discussed from the aspects of biogeography and nature conservatio
Method for adding an enological product to grapes within a wine press during pressing process
Get PDFElemental composition of wheat, common buckwheat, and tartary buckwheat grains under conventional production
No full textThe elemental composition of cereal and pseudocereal grain is believed to significantly affect the portions of the minerals supplied for particular human populations. Therefore, care needs to be taken to improve the availability of the essential elements and to decrease unwanted metal accumulation in edible plant parts. In the present study, we have investigated the element accumulation in the grain of wheat (Triticum aestivum L.), common buckwheat (Fagopyrum esculentum Moench), and tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.), harvested from the same field under conventional grain production. Soil and grain element compositions were analysed using energy dispersive X-ray fluorescence spectrometry and total reflection X-ray fluorescence spectrometry. The wheat grain shows significantly higher (p<0.05) higher element concentrations than both of the buckwheat species tested. The contents of elements in 100 g grain were higher than the concentrations listed in the literature for wheat and buckwheat flours, which indicates significant losses of elements during milling and polishing. Concerns are raised due to the high and unwanted metal accumulation in wheat and buckwheat. The data indicate that both of these buckwheat
species accumulate less metal contaminants when compared to wheat
Reliability of macroscopic (ocular) assessment of the age of red deer (Cervus elaphus L.) in Slovenia: validation by counting annuli in tooth cementum
No full textTo check the reliability of macroscopic (ocular) assessment of the age of red deer (Cervus elaphus L.) obtained by ocular inspection of teeth eruption and wear (done by hunters or hunter commissions), a validation of the precision of these assessments was carried out on a representative sample set, i.e. a total 2008-annual cull of red deer in the entire Slovenia. The reliability of ocular age assessment test was performed by cutting/grinding of the first mandibular molar (M1) and counting the incremental layers of dental cementum on 821 samples of adults (aged from two to twenty-two years). The ocular age assessment of adult red deer (regardless of sex) was biased with a large error (maximum deviation between both assessments: nine years). With both methods, the same animal age was established in 24.5% of cases, and with the age of the animals the reliability of ocular assessment declined. Ages of hinds and younger stags were both under-assessed and over-assessed; however, ages of older stags were generally over-assessed. Out of 426 analysed stags, 142 (33.3%) were categorized in another age category as found by counting annuli in tooth cementum. This raises doubts about the reliability of the current categorization of adult red deer stags into three age categories (2–4 years old, 5–9 years old, and 10+ years old, respectively); indeed, precise (on a yearly basis) ages of adult stags are impossible to be identified by routine age assessment, such as the inspection of teeth wea
A century long dynamics of silver fir population in mixed silver fir-european beech forests
No full textThe long-term dynamics of silver fir in mixed silver fir-European beech forests in Slovenia was studied in three geographically dislocated study areas, i.e. Leskova dolina, Trnovo and Jelovica. In the study, archival data on forest stands for the past century were used to create the GIS database, which included data for the periods 1912-2004 for the Leskova dolina study area, 1897-2003 for the Trnovo study area, and 1899-2002 for the Jelovica study area. In the observed period, substantial changes in diameter structure of silver fir and its proportion in stand volume were recognized. In Leskova dolina and Trnovo, the silver fir population was ageing, while in Jelovica it rejuvenated. In Leskova dolina and Trnovo, the silver fir proportion in stand volume decreased in the observed period, indicating its reciprocal replacement with European beech. The analyses of regeneration and recruitment designated different future potential of silver fir in the study areas. The found dynamics of silver fir is underpinned by a complex array of influential factors, notably past forest use, the impact of large ungulates, and site conditions
Two new species of Hydnum with ovoid basidiospores: H. ovoideisporum and H. vesterholtii
No full textTwo new species of Hydnum, characterized by slender Hydnum rufescens-like basidiomes and ovoid to broadly ellipsoid basidiospores, are described from the Iberian Peninsula based on morphological and ITS molecular data. Hydnum ovoideisporum is distinguished by pilei with deep orange tones and strong preference for calcareous soil. It is widespread in the Iberian-Mediterranean area. Hydnum vesterholtii is characterized by its ocher to light ocher pileus, and nearly all the collections were made in the Pyrenees. Both ovoid-spored species are monophyletic well supported groups in the maximum parsimony and Bayesian ITS phylogenies, while the remainder of the samples assigned to H. rufescens s.l. and having globose basidiospores split into six well supported clades. The need to typify the name Hydnum rufescens is discussed, and a provisional key is given for the European taxa of Hydnum
Izboljšanje informacijske učinkovitosti gozdnogospodarskega načrtovanja in gozdarskega informacijskega sistema : zaključno poročilo o rezultatih cilnega raziskovalnega projekta V4-1070
Get PDFForest area assessment in the Slovenian forest inventory design
No full textIn Slovenia, data on forest area are obtained within the framework of forest management planning and data of the actual agriculture and forest land use. The article shows the differences in the assessment methodology of forest cover and spatial structure of forests. In accordance with the concept of national forest inventories, the article suggests upgrading of the existing concept of forest inventories which, in the last decade, have been subordinate to forest management areas and differences in the economic role of forests. Based on a systematic sampling design with plots at the intersections of a 1 km grid, we deduced from orthophoto images that between 2006 and 2011 the forest cover in Slovenia was 61.1±0.7%. The article shows restrictions of orthophoto images usage and statistic concept of assessment, where the assessment subjects are groups of forest site types at the national level