Tatjana Jaksic

University of Prishtina · Department of Biology

The lichens: Acarospora impressula, A. nitrophila, A. nodulosa, A. schleicheri, A. sinopica, A. smaragdula and A. umbillicata, collected in North Kosovo are reported as a new species to Serbia, following a recent lichenological survey. Location, herbarium deposits and substrates are given, together with notes on distribution of the reported taxa.

The study is focused on diatom communities as indicators of the water quality of aquatic ecosystems. The study included watercourses of the Timok River Basin in eastern Serbia. Sampling of algological material and physico-chemical measurements were conducted at 30 locations in September 2016. Non-metric multidimensional scaling (NMDS) showed that c...

The paper presents the results of research on the bioaccumulation and translocation of Pb and Cr by the species Leucanthemum vulgare Lam., Melilotus officinalis L., Onobrichis viciifolia Scop. sampled from the tailings of Kosovska Mitrovica. The highest amount of Pb is contained in the inflorescence (93.46 mg kg- 1) of type L. vulgare and the large...

The aim of this study was to determine the bioaccumulation of the metals in Rumex acetosella L. collected from the tailings of abandoned mine in Žitkovac (near Kosovska Mitrovica, Kosovo and Metohija), and to establish the possibility of using those plants for medicinal purposes. Concentrations of heavy metals (Mn, Fe, Pb, Ni, Cr, Cu, Cd, Zn, Ca an...

The environment of Northern Kosovo and Metohija has been remarkably influenced for a long time by the huge metallurgical complex "Trepča". The technological process of ore exploitation and processing in the Mining and Metallurgical Chemical Company "Trepča" has resulted in a large amount of discharged material, deposited on metal tailings that are...

The aim of this paper was to present the composition and seasonal dynamics of epilthic diatoms in the Timok River basin. The diatom samples were collected along the Timok River basin in March, May, August and November 2017. Permanent diatom slides were prepared after oxidizing the organic material by the hydrogen peroxide (H2O2). The cleaned diatom...

Achillea millefolium L. has a great value as medicinal plant. The aim of the research is to determine the uptake potential for heavy metals and the intraspecial difference between unique species of A. millefolium from different localities based on the heavy metals uptake, their distribution in plant organs and enrichment factors. The results showed...

This paper deals with investigations of elemental concentrations and soil-to-moss transfer factors of radionuclides in area of municipalities Kosovska Mitrovica and Zubin Potok. Twelve samples of soil and moss Hypnum cupressiforme Hedw. were collected during May 2018. Transfer factors of radionuclides: 226Ra, 232Th, 40Kand 137Cs were calculated wit...

The study investigates mosses (Hypnum cupressiforme Hedw.) as bioindicators of pollution in three non-urban mountain areas of northern Kosovo and Metohija regions. Concentrations of radionuclides and metals were measured in moss and soil samples. 137Cs specific activities in soil were strongly correlated with organic matter content. 137Cs in mosses...

The aim of this study was to determine the effect of lead, nickel and cadmium on the germination of barley seeds (Hordeum vulgare L.) of Jadran variety. Based on the percentage of germination, germination energy, and root and hypocotyl length, authors done an analysis of the effects of PbCl2, NiCl2, CdCl2 solutions, in concentrations of 103 mol/m3,...

Petasites hybridus (Common butterbur) is extensively used in traditional medicine, and is currently gaining interest and popularity as a food supplement and for its medicinal properties. It contains a large number of active compounds of potential therapeutic activity, but also toxic pyrrolizidine alkaloids. Science-based information is needed to su...

Due to their diverse metabolic potential, many filamentous fungi have a great ability for degradation of different waste substances. The present research was aimed to investigate ability of fungi Mucor plumbeus, Aspergillus Niger and Trichoderma harzianum, isolated from sewer and industrial waste water, to conduct degradation of high concentrations...

The aim of this study was to determine the effect of lead, nickel and cadmium on the germination of barley seeds (Hordeum vulgare L.) of Jadran variety. Based on the percentage of germination, germination energy, and root and hypocotyl length, authors done an analysis of the effects of PbCl2, NiCl2, CdCl2 solutions, in concentrations of 103 mol/m3,...

This paper deals with investigations of elemental concentrations and soil-to-moss transfer factors of radionuclides in area of municipalities Kosovska Mitrovica and Zubin Potok. Twelve samples of soil and moss Hypnum cupressiforme Hedw. were collected during May 2018. Transfer factors of radionuclides: 226Ra, 232Th, 40K and 137Cs were calculated wi...

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In this paper, the contents of chloroplast pigments (chlorophyll a, b, a+b and carotenoids) in the leaves of medicinal plant Teucrium chamaedrys from tailing pond „Žitkovac“ of Mining and Metallurgical Chemical Company „Trepča“ and from uncontaminated area near city of Niš were compared. Chloroplast pigments were determined spectrophotometrically i...

Nowadays, rare earth elements (REEs) represent a group of emerging pollutants due to their growing application in industry and agriculture, hence, the environmental and human exposures undergone a steady spread. Since REEs can be a part of airborne particulate matter (PM), moss biomonitoring could be a tool for the assessment of their atmospheric d...

The influence of different lead acetate concentrations (10 -5 M, 10 -4 M, 10 -3 M, 10 -2 M and 2 x 10 -2 M) both with and without presence of actinomycetes on germination and initial growth (root, leaf length and stem height) of vetch plant (Vicia sativa L.) was rated. Different lead acetate concentrations and actinomycetes (Streptomyces sp.) of 5,...

U ovom radu su prikazani rezultati ispitivanja antioksidativnih karakteristika biljaka sa sanirane deponije "Žitkovac" RMHK "Trepča" i nezagađenog područja okoline Niša, kao i poređenje dobijenih rezultata. Analizirane su lekovite biljke koje se mogu naći na tom području: Medicago sativa, Teucrium chamaedrys, Plantago lanceolata, Rumex acetosella i...

Skokuni su rasprostranjeni u svim geografskim i klimatskim predelima. Važni su ekotoksikološki test organizmi i najviše se koriste kao indikatori efekta zagađenja životne sredine, pa je postavljen cilj rada da se utvrdi sastav i struktura ove zajednice na lokalitetu napuštenog kamenoloma u Radmanovu, Brus. Kamenolom se nalazi na istočnoj strani pla...

An attempt to establish a spatial distribution of the atmospheric deposition of the 7Be was done using terrestrial mosses as medium. The levels of naturally present radionuclide 7Be (and 40K, 137Cs, 212Pb and 214Bi as well) were measured in 217 moss samples collected from the entire territory of the Republic of Serbia. Measurements were performed b...

Puddle ecosystem near the Ibar River was investigated in the rehabilitated urban landfill in Kosovska Mitrovica, aiming to determine benthofauna structure. Benthofauna was sampled puling the sieve through the sludge, separated and preserved in 75% alcohol. Physico-chemical water properties were determined on the spot. O^2 concetration was 7 mg/l, t...

U ovom komparativnom istraživanju određeni su aktivnost enzima katalaze i ukupan sadržaj organskih kiselina u podzemnim i nadzemnim delovima lekovite biljke hajdučka trava (Achillea millefolium) sa sanirane deponije "Žitkovac" Rudarsko Metalurško Hemijskog Kombinata "Trepča" i nezagađenog područja okoline Niša. Aktivnost katalaze je izmerena korišć...

We report the first record of the alien freshwater jellyfish Craspedacusta sowerbii in Gazivode Lake, northern Kosovo. Gazivode Lake is a drinking-water reservoir, with a depth of up to 107 m, located on the Ibar River. The occurrence of the jellyfish was recorded in August and September 2016. The abundance of the population was estimated at 50-60...

Purpose The purpose of the paper is to evaluate a lake lavel prediction model. Lake-level prediction is very important task for different crucial issues like planning of water resource, controlled drainage, etc. Therefore, in this study, a soft computing approach was applied to predict the lake levels based on the different prediction horizons. D...

The results of a study on the air pollution using epiphytic lichens as bioindicators, on teritory of Pirot city, in the Southeastern Serbia, are reported. Investigation was done in 2002 for the first time, then 2009 and 2014. In this work, in order to establish different air pollution levels, different lichen species have been used as bioindicators...

The invasive plants that grow at contaminated sites are capable of adapting to the extreme environmental conditions through changes in morphology and/or physiology. Studying these mechanisms of adjustment could allow adequate estimations of the species that may be used for remediation. Our study involved Žitkovac – the abandoned tailing pond of the...

Some data on long term seasonal investigation of hydrography and plankton are presented in this paper. The most important fact is that the whole area is exposed to the impact of the fresh water from numerous sources from the coast and submarine springs in, and the impact of rivers Bojana and Drim. The exchange of the intermediate water-masses betwe...

Morphological characteristics of the fire salamander population (Salamandra salamandra, Salamandridae) from Šar planina mountain

In this paper we present the results of the analysis of morphological characteristics of the Hermann’s tortoise from three localities in south-eastern part of Kosovo and Metohija. 75 adult Hermann's tortoises (33 males and 42 females) have been analyzed. Morphometric analisys has been done on 7 traits. We considered the plastron black pigmentation...

In this paper we present an assessment of the altitude effect on the plant species presence in different plant communities - the species of Juniperus genus (Juniperus communis L., Juniperus oxycedrus L. and Juniperus sibirica Burgsdorf) on Kopaonik Mountain. Two juniper species (Juniperus communis and Juniperus oxycedrus) were recorded at altitudes...

The macrozooplankton of Lake Celije includes seven genera of small crustaceans: five from the order Cladocera and two from the order Cyclopoida. Population densities for the macrozooplankton at Lake Celije were within the ranges characteristic for meso and eutrophic freshwater ecosystems. Within the total abundance of macrozooplankton, the most sig...