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SHRIMP U-Th-Pb zircon dating of the granitoid massifs in the Malé Karpaty Mountains (Western Carpathians): evidence of Meso-Hercynian successive S- to I-type granitic magmatism

zircon standard for Phanerozoic U-Pb geochronology. Chem. Geol. 200, 155-170. Broska I., Bibikova E.V., Gracheva T.V., Makarov V.A. & Caňo F. 1990: Zircon from granitoid rocks of the Tribeč-Zobor crystalline complex: its typology, chemical and isotopic composition. Geol. Zbor. Geol. Carpath. 41, 393-406. Cambel B. & Vilinovič V. 1987: Geochemistry and petrology of the granitoid rocks of the Malé Karpaty Mts. Veda , Bratislava, 1-148 (in Slovak with English summary). Cambel B., Kráľ J

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Ekológia (Bratislava)
The Journal of Institute of Landscape Ecology of Slovak Academy of Sciences
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The Response of Adenanthera Pavonina L. and Parkinsonia Aculeata L. to Household Detergent Solution

Abstract

Rizvi A., Iqbal M.Z., Khursheed S.: The response of Adenanthera pavonina L. and Parkinsonia aculeata L. to household detergent solution. Ekológia (Bratislava), Vol. 33, No. 2, p. 171-177, 2014.

The growth of Adenanthera pavonina L. and Parkinsonia aculeata L. was studied in soil irrigated with household detergent solution of different concentrations (0, 0.25 and 0.5%) under natural environmental conditions. Detergent solutions exhibited great inhibition of all the observed growth parameter of Adenanthera pavonina and Parkinsonia aculeata. Growth of plants extremely declined when irrigated with 0.75 and 1% treatments and died after two weeks of experiment. Analysis of soil showed that detergent solution has resulted in significant increase of pH, soluble sodium and chlorides. Soluble potassium and total phosphate were significantly decreased in soil irrigated with detergent solutions as compared to control.

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The importance of rural parks for the occurrence of the Rook Corvus frugilegus in the eastern part of the Lublin region (E Poland) – ecological and social factors

Abstract

Kitowski I.: The importance of rural parks for the occurrence of the Rook Corvus frugilegus in the eastern part of the Lublin region (E Poland) - ecological and social factors. Ekologia (Bratislava), Vol. 32, No. 3, p. 283-298, 2013. This study deals with the population size and the distribution of breeding colonies of the rook in rural parks in the eastern part of the Lublin region (Eastern Poland). Large parks with a large number of tree species were appropriate sites for larger rookeries. Small, degraded parks, with few species of trees, were used by smaller rookeries, which showed tendencies to disappear more quickly. Small colonies were irrevocably abandoned if disturbed by man, whereas large ones had a very high reoccupation potential, even after a few years. Unfortunately, ownership changes concerning rural parks in Eastern Poland may endanger the rookeries located there.

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Abandonment of agricultural land in central Poland and its ecological role

Abstract

Majchrowska A.: Abandonment of agricultural land in central Poland and its ecological role. Ekologia (Bratislava), Vol. 32, No. 3, p. 320-327, 2013. The intent of this paper is to give an overview of the ongoing study of farmland abandonment in central Poland. The goal of this project, initiated in 2011, is to provide field-verified information: 1. What is the spatial distribution of abandoned agricultural land in central Poland? How is it related to biophysical features of the study area? 2. What are botanical characteristics of spontaneous vegetation succession in the abandoned agricultural lands? What are their environmental determinants? 3. How do the abandoned lands correspond to existing protected areas? How could they be used to strengthen the ecological landscape structure of central Poland? The paper summarises the general study approach, discusses some methodological difficulties, presents preliminary findings and formulates the expected results.

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Attitudes of the involved subjects to the issue of biodiversity conservation in the Protected Area of the Malé Karpaty Mts (Results of personal interviews)

References Act No. 543/2002 About nature and landscape protection in wording of later issued provisions (in Slovak). Act No. 274/2009 Hunting Act (in Slovak). Atlas krajiny SR (2002). Bratislava: MŽP SR, Banská Bystrica: SAŽP. Izakovičová, Z. & Moyzeová M. (2000). Evaluation of environmental problems arising from collisions of interests in the region of the Tatras. Ekológia (Bratislava), 19(Suppl. 2), 168−176. Izakovičová, Z. et al. (2002). Landscape-ecological plan of district

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Impact of the Former Vineyard Land Use on the Productivity of Secondary Forest Herb Layer in the Little Carpathians (SW Slovakia)

References Braun-Blanquet, J. (1964). Pflanzensoziologie . Grundzüge der Vegetationskunde. Wien: Springer-Verlag. Dlapa, P., Chrenková, K., Hrabovský, A., Mataix-Solera, J., Kollár, J., Šimkovic, I. & Juráni B. (2011). The effect of land use on the soil aggregate stability in the viticulture district of Modra (SW Slovakia). Ekológia (Bratislava) , 30(4), 397–404. DOI: 10.4149/ekol_2011_04_397. Fusán, O. (1972). Geology (in Slovak). In M. Lukniš et al. (Eds.), Slovensko 2. Príroda (pp. 19−123). Bratislava: Obzor. Jurko, A. (1990

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Dependence of douglas-fir mean height on geographic origin of canadian provenances in seedling nursery conditions

Abstract

Popović V., Lavadinović V., Bjelanović I., Lavadinović V.: Dependence of Douglas-fir mean height on geographic origin of Canadian provenances in seedlings nursery conditions. Ekologia (Bratislava), Vol. 32, No. 3, p. 328-334, 2013. Seed and seedling tests, performed with the aim of acquiring knowledge about the genetic potential of selected provenances, are generally one of the first trials in a complex system of comparative examinations to be conducted upon the introduction of alien tree species. This paper presents the results of the investigation of the dependence of the mean height of 14 Canadian origin Douglas- -fir provenances, originating from latitude 49o 10’ to 51o 35’, longitude 11 o 20’ to 120o 10’ and the altitude of 488 to 1,070 m, on the geographic origin. Understanding the variations in the mean height of a seedling is of major importance for acquiring knowledge on genetic potential of selected provenances, which are one of the key parameters for the introduction of Douglas fir into relevant forest sites in Serbia.

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Vegetation of Humic Lakes in Relation to their Trophic State

Abstract

Ejankowski W., Iglińska A.M.: Vegetation of humic lakes in relation to their trophic state. Ekológia (Bratislava), Vol. 33, No. 2, p. 160-170, 2014.

The vegetation of selected 24 humic lakes in Poland was studied to establish whether there was a link between the lakes’ vegetation and their trophic state. Based on literature data and field studies, the lakes were distinguished into two groups with regard to plant communities in the lakes and catchment basins. They were identified as dystrophic (DL) and humoeutrophic (HL) lakes according to their chemical and biological parameters. The two lake groups differed in terms of macrophyte structure: nymphaeids were common in DL, whereas helophytes in HL. The massive development of elodeids was also observed in HL. Vegetation in the catchment basins was mesotrophic in HL (Caricion lasiocarpae Vanden Bergh. ap. Lebrun et al., 1949), whereas in case of extremely nutrient-poor habitats in DL oligotrophic vegetation was found (Rhynchosporion albae Koch 1926 and Oxycocco-Sphagnetea Br.-Bl. et. R .Tx. 1943). The regionally determined variability of humic lakes in Poland was verified positively. Potential dystrophy indicators are discussed in this paper.

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Woodland Ponds as an Important Habitat of Hippeutis Complanatus (Linnaeus 1758) Occurrence - Effect of Environmental Factors and Habitat Preferences

Abstract

Spyra A. Woodland ponds as an important habitat of Hippeutis complanatus (Linnaeus 1758) occurrence - effect of environmental factors and habitat preferences. Ekológia (Bratislava), Vol. 33, No. 2, p. 101-115, 2014.

In industrial areas, woodland ponds are refuges of biological diversity. The impact of environmental factors such as the physico-chemical properties of water, organic matter content in bottom sediments and various types of substratum on the occurrence of Hippeutis complanatus were assessed. In Poland, it is considered to be a species with an established but unspecified risk, deserving the status of endangered species due to the decline of wetland environments. A Canonical Correspondence Analysis (CCA) revealed associations between the distribution patterns of freshwater snails species and the concentration of nitrates (NO3) and calcium (Ca) as well as pH and the organic matter content in the bottom sediments. Based on statistical relationships, results of study suggest that the kind of substratum (Typha latifolia remains, Phragmites australis remains, fallen leaves of waterside trees) has an impact on the occurrence of freshwater snails including Hippeutis complanatus for which the preferred substratum is the fallen leaves of waterside trees and sites with a high content of organic matter in bottom sediments. The study has shown that isolated water bodies located in forest complexes can be refuges for species that occur in small numbers in other types of aquatic environments.

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