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  1. 5 Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan

  2. 4 Biological Bulletin of Poznań

  3. 3 Geographia Polonica

  4. 3 Oceanological and Hydrobiological Studies

  5. 2 Acta Scientiarum Polonorum. Hortorum Cultus

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  1. 2 Bigus K.

  2. 2 Jedrzejko K.

  3. 2 Trojanowski J.

  4. 1 Aidossova S. S.

  5. 1 Aleksander-Kwaterczak U.

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  1. 1 2020

  2. 1 2017

  3. 1 2016

  4. 3 2015

  5. 1 2014

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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Magnesium and calcium concentrations in the surface water and bottom deposits of a river-lake system

100%
Potasznik A., Szymczyk S.
Journal of Elementology
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2015
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tom 20
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nr 3
River-lake systems comprise chains of lakes connected by rivers and streams that flow into and out of them. The contact zone between a lake and a river can act as a barrier, where inflowing matter is accumulated and transformed. Magnesium and calcium are natural components of surface water, and their concentrations can be shaped by various factors, mostly the geological structure of a catchment area, soil class and type, plant cover, weather conditions (precipitation- evaporation, seasonal variations), land relief, type and intensity of water supply (surface runoffs and groundwater inflows), etc. The aim of this study was to analyze the influence of a river-lake system on magnesium and calcium concentrations in surface water (inflows, lake, outflow) and their accumulation in bottom deposits. The study was performed between March 2011 and May 2014 in a river-lake system comprising Lake Symsar with inflows, lying in the Olsztyn Lakeland region. The study revealed that calcium and magnesium were retained in the water column and the bottom deposits of the lake at 12.75 t Mg year-1 and 1.97 t Ca year-1. On average, 12.7±1.2 g of calcium and 1.77±0.9 g of magnesium accumulated in 1 kg of bottom deposits in Lake Symsar. The river-lake system, which received pollutants from an agricultural catchment, influenced the Ca2+ and Mg2+ concentrations in the water and the bottom deposits of Lake Symsar. The Tolknicka Struga drainage canal, to which incompletely treated municipal wastewater was discharged, also affected Ca2+ and Mg2+ levels, thus indicating the significant influence of anthropogenic factors.
2
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The attractiveness of polar regions as the zones of silence

100%
Mamzer H.
Oceanologia
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2020
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tom 62
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nr 4PB
3
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The biochemical composition of sedimentary organic matter in sandy beaches of various anthropopressure

100%
Trojanowski J., Bigus K.
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
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2013
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tom 17
Beach sediments from two beaches at the Polish coast of the Baltic Sea were collected and analyzed. The sediments were collected in two seasons – winter and summer – at two stations, depending on the influence of the sea water on the examined sediments. At each station, surface sediments (0-5 cm) were collected as well as sediments at the depth of 10-15 cm. The results of the conducted tests reveal, that anthropopressure, the depth where the collected sediments were taken and the direct influence of the sea water on the sediments have impact on the chemical composition of beach sediments and their food quality for the inhabiting psammon. The conducted tests disclose that there is more organic matter and its labile forms in the sediments originating from Ustka. Strong anthropogenic pressure found at the beach in Ustka also contributes to higher concentration of uncharacterized fraction of organic carbon in the area. Analyzing alimentary usefulness of the organic matter there, it seems to be higher at the beach in Czołpino.
4
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An attempt to assess the impact of anthropopressure on the ecological state of urbanised watercourses of Krakow conurbation and the difficulties encountered

100%
Wardas M., Aleksander-Kwaterczak U., Jusik S., Hryc B., Zgola T., Sztuka M., Kaczmarska M., Mazurek M.
Journal of Elementology
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2010
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tom 15
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nr 4
725-743
Rivers and streams in cities are treated as urbanised watercourses because of their significant transformation. Their load, channeling and incorporation into the water-sewerage infrastructure are often so considerable that such watercourses can hardly be recognised as an intrinsic component of surface waters. Anthropopressure, as reflected in quantitative and qualitative degradation caused by flow regulation and economic development in the drainage basin area, makes evaluation of the impact of human activity on the aquatic environment somewhat difficult. Based on the recommendations of the Water Framework Directive, an attempt has been made to assess the ecological state of selected tributaries of the Prądnik-Białucha River within the Krakow Conurbation. Aquatic environment sampling of the Sudół Dominikański (Rozrywka) watercourse was performed (September 2005) in order to determine some physicochemical, chemical and biological parameters, paying particular attention to macrophytes. The parameters measured on site: pH, electrolytic conductivity and Eh of water and bottom sediments, and sozological observations, were subjected to analysis. In the laboratory, concentrations of heavy metals, both in water and in solid particles (sediments and suspended matter) and anions in water were determined. The environmental state of the Sudół Dominikański watercourse was compared with that in the area of the Prądnik-Białucha River valley, for which an assessment had been conducted in the previous year (September 2004).
5
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Salix lapponum L. (downy willow) in stands under anthropopressure in the Leczna-Wlodawa Lakeland

100%
Pogorzelec M.
Acta Agrobotanica
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2010
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tom 63
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nr 1
The studies carried out in the years 2004-2005 and in 2009 were aimed at identifying the functioning conditions of a boreal plant relict, Salix lapponum, in its stands under anthropopressure in the Łęczna-Włodawa Lakeland. The study results confirmed that the number of S. lapponum stands on Lake Miejskie and on Cow Marsh and its population size had significantly decreased as well as the population condition had deteriorated during the last 50 years. Based on the results of an analysis of environmental (biocenotic and abiotic) factors it was found that changes in habitat conditions in its stands were the main threat for downy willow. Another cause of population decline and the deteriorated condition of downy willow individuals may be the habitat isolation. The observed intraspecific phenomena, i.e. the lack of flowering in individuals and the lack of downy willow seedlings could be the reason for insufficient reproduction efficiency, ipso facto, the weaker adaptation of individuals to changes in habitat condition. Therefore, it seems that it is necessary to pursue active species conservation and protection which should primarily involve population reconstruction – restitution.
6
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Analysis of the aphid population colonizing roses in different types of city green areas of Lublin

100%
Jaskiewicz B.
Acta Scientiarum Polonorum. Hortorum Cultus
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2005
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tom 04
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nr 2
Observations on the aphid number were carried out in the years 2001–2003, simultaneously in four different sites. In each of these three shrubs were marked: of park rose ‘Grandhotel’, rugosa rose, multiflorous rose and five shrubs of border roses of various cultivars. The purpose of these study was to conduct a quantitative analysis of the aphid fauna colonizing roses growing in various types of city green areas. As a result of studies conducted the occurrence of 10 aphid species was found out on the analyzed shrubs. No significant differences were observed in the species composition of aphids colonizing roses growing in various types of city green areas. The studies showed significant differences in the aphid number between the analyzed sites. The road and street sites on the one hand and the road and housing estate ones on the other were most similar regarding the number of aphids.
7

The interpretation of contemporary vegetation transformations on the basis of the teories of synanthropisation and syndynamics

100%
Falinski J. B.
Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan
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2000
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tom 10
8

Spatial diversity of the synanthropic flora: an example of the Kotlina Oswiecimska, Pogorze Slaskie and the Beskid Maly Mountain Range [Southern Poland]

100%
Banas B.
Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan
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2000
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tom 10
9

Anthropogenic transformations of the Bagno Chlebowo peat-bog [Wielkopolska Province]

100%
Celka Z., Szkudlarz P.
Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan
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2000
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tom 10
10

Bryophytes of the Bolimow Nature Park forests

100%
Luczak A., Filipiak E.
Biological Bulletin of Poznań
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2001
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tom 38
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nr 2
11

Factors differentiating the habitats occupied by phytocoenoses of Phragmitetum communis [Gams 1927] Schmale 1939 in lakes of Wielkopolska Region

84%
Pelechaty M., Burchardt L., Siepak J.
Polish Journal of Environmental Studies
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2000
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tom 09
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nr 5
409-417
In the summer seasons of the years 1996-1998 habitat studies of 60 phytocoenoses of Phragmitetum communis in 30 lakes of Wielkopolska region were carried out. The aim of the study was a comparison of two groups of phytocoenoses exposed to different effects of wind (and waves) and two other groups subjected to a different degree of anthropopressure in respect to 28 properties of water and 23 properties of substrate. Results were expected to answer the question whether the phytocoenoses of this community reveal an internal ecological variability (habitat and floristic) in the local scale as well as to determine which of the two factors has a more important differentiating effect on the phytocoenoses and their habitats.
12
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Differences of chemical components in beaches sediments with dissimilar anthropopressure

84%
Trojanowski J., Bigus K., Trojanowska C.
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
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2011
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tom 15
The investigations of the chemical composition of sands were conducted on the beach in Ustka and Czołpino. The Ustka is a typical tourist town and Czołpino is located in the Slovinski National Park away from urban or rural areas. The beach sediments in Ustka contain much more organic matter, nitrogen and phosphorus compounds as well as calcium carbonate than analogous deposits in Czołpino. The effect of sea water was manifested in the high content of organic matter in places having permanent contact with sea water. The content of the organic matter increased together with with the depth of settlings in these places. However more organic matter in surface layers was observed in regions more distant from the sea, because penetration of organic matter into the sediments is possible during precipitation. The concentration of ammonia nitrogen in the analyzed beach deposits increased with depth, what probably results from the lower oxygen content in deeper layers. It was confirmed that organic matter in sands of the beach in Czołpino is of natural origin, while in Ustka it is primarily of anthropogenic origin.
13

Natural regeneration potential of the black saxaul shrub-forests in semi-deserts of Central Asia – the Ili River delta area, SE Kazakhstan

84%
Zhaglovskaya A. A., Chlachula J., Thevs N., Myrzagaliyeva A. B., Aidossova S. S.
Polish Journal of Ecology
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2017
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tom 65
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nr 3
Two saxaul species - black saxaul (Haloxylon aphyllum Minkw.) and white saxaul (Haloxylon persicumBunge) - constitute the principal arboreal cover of the cold continental deserts of Central Asia. While the latter is a rain-fed shrub distributed on sand dunes, the former is a ground-water phreatophyte mainly found on alluvial terraces. Saxaul has played an important role as a fodder plant also used as firewood by local herders. Due to over-grazing and over-exploitation for fuel during the past fifty years, the oncedominant saxaul vegetation has considerably degraded. Important growth characteristics at the present plantations (such as height, and basal trunk and crown diameters) show a direct quantitative relationship between the plants' age up to the 25-year lifetime and the total tree biomass reduced by natural degradation. Annual productivity largely depends on the overall vegetation density that reflects specific environmental conditions at particular locations. The recommended harvest rate, balancing the calculated natural regeneration capacity, should not exceed 0.82 t/ha at the density of up to 900 shrubs/ha, 1.78 t/ha at the density of 900–1500 shrubs/ ha and 2.63 t/ha at the density of 1500–2000 shrubs/ha. The results from the field monitoring sites provide new insights on the natural reproductive potential of black saxaul shrub-forests in undisturbed versus anthropogenically affected and exploited semidesert and parkland settings of Central Asia.
14
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The production structure of populations of Viviparus contectus in rivers under different anthropopressure

84%
Uvaeva O. I.
Folia Malacologica
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2016
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tom 24
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nr 1
15

The effects of urbanization - small mammals communities in a gradient of human pressure in Warsaw city, Poland

84%
Gortat T., Borkowska M., Gryczynska-Siemiatkowska A., Pieniazek A., Kozakiewicz A., Kozakiewicz M.
Polish Journal of Ecology
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2014
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tom 62
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nr 1
The aim of this study was to determine the influence of human pressure and spatial structure of landscape on the occurrence of populations of small mammals in the environment of a large urban agglomeration. The investigations were carried out in Warsaw, Poland in 17 locations. The study sites were located on both sides of the Vistula River, of different landscape spatial structure, in various distances from the city center, and were subject to different degrees of human pressure. Part of the city located on the left bank of the Vistula River is more strongly transformed by man than the part located on the right bank of the river. A total of 933 specimens of 8 species of small mammals were caught using the live-trapping method (Catch-Mark-Release). The richest species composition was found at the city borders and in rural areas. On the left side of Vistula, the species diversity was lower than on the right side, showing significant negative correlation with the human pressure degree. Such pattern was not confirmed on the right side of the river. The only species to occur in all sites on the left side of Vistula was the striped field mouse (Apodemus agrarius). On the right side of Vistula, the striped field mouse was accompanied by the yellow-necked mouse (Apodemus flavicollis) in all research sites. The results indicate that the degree of human pressure and spatial isolation are crucial for composition of small mammal community. Less advanced urbanization processes in areas on the right bank of Vistula, as compared to districts on the left side, provide better contact between local populations of small mammals, and offer better living conditions to a large number of species, even in areas located in the center of the city.
16
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Ampelomyces hyperparasites - occurrence and effect on the development of ascomata of Erysiphales species under conditions of anthropopressure

84%
Sucharzewska E., Dynowska M., Kubiak D., Ejdys E., Biedunkiewicz A.
Acta Societatis Botanicorum Poloniae
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2012
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tom 81
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nr 3
Fungi of the genus Ampelomyces are the major antagonists of Erysiphales fungi being a significant group of phytopathogens. The hyperparasites attack various developmental stages of powdery mildews. As a result the infested ascomata do not reach the stage of maturity, do not form appendages nor ascospores, which is linked with a reduction of the source of primary infections. Studies conducted so far have mainly been devoted to Ampelomyces fungi application in the biological control of powdery mildews on crops, whilst a few only have been focused on the ecology of these mycoparasites on Erysiphales fungi infecting plants, especially in the urban environment. The present study addresses the natural occurrence and effect of Ampelomyces fungi on the development of ascomata of powdery mildews species. The material was collected in 2005–2009 in several cities of the northeastern Poland. First time ever Ampelomyces spores are reported in mature ascomata of Erysiphales with fully developed appendages. This phenomenon has been observed in the case of two species, viz.: Erysiphe flexuosa on Aesculus spp. and E. vanbruntiana var. sambuci-racemosae on Sambucus racemosa and is presumably linked with improved implementation, propagation and probably better survival during winter months.
17
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Human impact on the plant cover of four villages in SE Poland

84%
Kotanska M., Buziak-Chmielowiec E., Dabrowska A., Gladysz M., Jakielaszek A., Wojcik T.
Steciana
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2015
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tom 19
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nr 2
The observation of the rapid rate of plant cover transformation caused by urbanization and agricultural technology was the inspiration for undertaking the study in rural areas. The study was carried out in the Sandomierz Basin in four typical villages with varying degrees of the anthropogenic impact. The changes observed included: Koszyce Małe – evident transformation of fields and meadows into building land; Kolbuszowa Dolna – intensive changes in land use, abandonment of fields and meadows, and river regulation; Roźwienica – emergence of new habitats for plant colonization after reclamation of land previously occupied by a brick factory and a landfill; Krzeczowice – intensive crop cultivation and unchanged land use. In 2009–2010, floristic investigations with the patrol method were carried out in these areas. The historical-geographical classification and indices of the anthropogenic changes of the flora were employed in the analysis. Substantially, domination of synanthropic species over non-synanthropic spontaneophytes was noted in the analysed floras. In the synanthropic species group, the proportion of apophytes was 3-fold higher than that of anthropophytes. Archaeophytes were more abundant than kenophytes. The flora of Krzeczowice, an area affected by long-term anthropopressure, was by approx. 30% less abundant than that in the other villages; it was also characterised by the highest synanthropization index, apophytization index, and index of apophytism of spontaneophytes. In turn, the flora found in Kolbuszowa Dolna was rich due to the presence of a wide variety of habitats; it was characterised by the lowest apophytization index accompanied by the highest anthropophization index.
18
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Effects of environmental changes and human impact on the functioning of mountain river channels, Carpathians, southern Poland

84%
Krzemien K., Gorczyca E., Sobucki M., Liro M., Lyp M.
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
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2015
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tom 47
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nr 3
In the northern slope of the Carpathian Mountains and in their foreland, river and stream channels have been significantly transformed by human impact. These transformations result from changing land use in river basins and direct interference with river channels (alluvia extraction, engineering infrastructure, channel straightening). Anthropogenic impacts cause signifi cant changes in the channel system patterns leading to increased impact of erosion. This mainly leads to the channelling of the fluvial system. This article reviews studies of structure and dynamics of Carpathian river channels conducted based on the methodology of collection of data on channel systems, developed in the Department of Geomorphology of the Institute of Geography and Spatial Management, Jagiellonian University.
19

Vegetation of forest trails as a bioindicator of recreational anthropopressure on forest phytocoenoses

84%
Witkowska-Zuk L., Andrzejewski A.
Folia Forestalia Polonica. Series A . Forestry
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2002
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tom 44
20

Anthropogenic changes in the vegetative cover of the past five thousand years in light of pollen analysis of lake sediments in Wielkopolska

84%
Milecka K.
Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan
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2000
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tom 10
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