Wyniki wyszukiwania - Biblioteka Nauki

1

Characteristics of lake Rogozno macrophytes and their role in preservation of biodiversity

100%

Sugier P.

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2008

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tom 05 A

2

Peat pits vegetation of peatlands in the Polesie National Park and its protected zone

100%

Sugier P.

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tom 03

3

Vascular plants versus mosses in lakeland and riverine mires in two regions of eastern Poland

63%

Sugier P. , Czarnecka B.

Polish Journal of Ecology

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2010

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tom Vol. 58, nr 4

635-644

EN

Our research was conducted in two different mire habitats . in the minerotrophic and ombrotrophic mires adjoining the lakes (LM) of the Łęczna-Włodawa Lakeland and in the eutrophic and calcium-rich mires of the river valleys (RM) of the Roztocze Highlands region (both study regions in Eastern Poland). The study aimed to evaluate (1) the position of mire phytocoenoses in the environmental gradient - from minerotrophic to ombrotrophic ones, (2) the influence of the species and life-form composition of plant communities on the density of bryophytes, and (3) the quantitative and sociological relations between the density of vascular plants and bryophytes. Phytosociological releves (180) were made in six lakeland mires and in four river valleys. The area of each phytosociological releves (16-25 m2) represented species composition and vertical structure of communities. In the study of the relation vascular plants-bryophytes we took into consideration the following parameters: species abundance, cover of particular plant layers (trees, shrubs, herbs, bryophytes), and the number of species in particular life-form groups. In the LM the cover of particular layers was correlated negatively with the abundance of Sphagnum mosses. Betula pendula, B. pubescens and Frangula alnus overgrowing the LM affect negatively the abundance of some peat mosses. Less distinct relations were found between the tree density and bryophyte cover in the RM, but there is a positive correlation between the shrub cover and its predominant species - F. alnus - and the abundance of Polytrichum commune. Taking into account the relations between the herbaceous cover and the abundance of bryophytes, the dependencies are also less pronounced in the RM phytocoenoses. A negative effect of the herbaceous cover and its species richness on the abundance of P. commune was observed, as well as positive relation between the number of herbaceous species and the abundance of Calliergonella cuspidata. In the LM phytocoenoses, a negative correlation was found in the case of S. palustre, while in the case of Aulacomnium palustre and S. cuspidatum the relations were positive. Among herbaceous plants of LM habitats the biggest number of statistically significant correlations were observed for abundance of Carex lasiocarpa and different bryophytes, while in the RM habitats the correlations between the abundance of bryophyte and vascular plant layers are less distinct.

4

Roslinnosc wodna i przybrzezna jeziora Moszne w Poleskim Parku Narodowym

63%

Sugier P. , Popiolek Z.

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tom 53

185-200

5

Salicylate content in bark of the selected willow species from natural habitats

63%

Sugier D. , Sugier P.

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nr 3-4

6

Vegetation of the catchment areas of the lakes in Polesie National Park. Current state and changes

63%

Lorens B. , Sugier P.

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tom 67

7

Rosliny z Poskiej Czerwonej Ksiegi Roslin na Lubelszczyznie

51%

Fijalkowski D. , Lorens B. , Sugier P.

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tom 53

37-49

8

Rosliny pontyjskie na Lubelszczyznie

51%

Fijalkowski D. , Sugier P. , Wawer M.

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tom 53

51-60

9

Changes in vegetation of restored water-land ecotone of lake Bikcze Polesie Lubelskie Region, Eastern Poland in the years 1993-1998

51%

Lorens B. , Gradziel T. , Sugier P.

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tom 51

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nr 2

EN

Ecotone zones are very interesting objects for the investigations of the ecological succession of plant communities. The main aim of the present study was to analyse the rate and direction of changes in ecotone vegetation caused by changes in a level of groundwater table. In the studies carried out during years 1993-1998 a generally accepted method of a belt transect was applied. Transect 5m wide ran across all aquatic, litoral and land phytocenoses. Most visible changes took place in the aquatic and littoral phytocenoses. Some of them disappeared and then reconstructed themselves within a new range, in others the species composition was changed.

10

Evaluation of species inter-relations and soil conditions in Arnica montana L. habitats: a step towards active protection of endangered and high-valued medicinal plant species in NE Poland

38%

Sugier P. , Kolos A. , Wolkowycki D. , Sugier D. , Plak A. , Sozinov O.

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nr 3

EN

Arnica montana L. is a critically endangered and highly valued medicinal plant species in Europe. We show the inter-relationships between arnica and accompanying plant species, as well as soil factors, that promote the persistence of the studied forest arnica populations in terms of active protection of this species in the northeast region of Europe. The population characteristics and plant species composition were assessed during a field study. Additionally, soil samples were taken and analyzed to assess variation in soil conditions in the habitats of arnica populations. Correlations between population characteristics and soil properties were highlighted. The forest habitats of arnica presented in this study differ from those described in other European mountain and submountain areas. The sandy and very poor soils are characterized by a very low content of macro- and microelements, and a strong acid reaction. The positive correlation between population characteristics and Ca and K indicates an important role of these macroelements in flower head production. Acidity, K, Ca, the sum of exchangeable bases, and base saturation play crucial roles in the persistence of arnica populations in pine forests. The level of acidity and its consequences result from soil-forming processes and climatic conditions rather than air pollution. When planning active protection scenarios, special attention should be paid to the frequency and cover of Vaccinium myrtillus, which can act as a competitor in forest habitats. Assessment of soil conditions that favor the persistence of the studied arnica populations and species relationships is important for improving knowledge of the ecology of the species and for the active protection of endangered plant species.

11

Revision of Nymphaea candida range - new data on the distribution and habitat preferences of the species in southern Poland

23%

Nowak A. , Nobis M. , Dajdok Z. , Zalewska-Galosz J. , Nowak S. , Nobis A. , Czerniawska-Kusza I. , Kozak M. , Stebel A. , Bula R. , Sugier P. , Szlachetka A. , Bena W. , Trojecka A. , Piwowarczyk R. , Adamiec A. , Krawczyk R.

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nr 4

EN

The paper presents results of geobotanical and taxonomic studies on the distribution and habitat requirements of Nymphaea candida in southern Poland. The researches were conducted in southern Poland in 2003-2009, in the provinces of Lower Silesia, Lublin, Małopolska, Opole, Silesian province as well as, in southern parts of Mazowieckie and Lubuskie. Flowers, leaves and fruits of Nymphaea species were collected from 27 locations. Altogether pollens from 73 populations of N. candida and 18 of N. alba from all the researched area were measured. The trophic level of an ecosystem was evaluated according to the results of the total nitrogen, total phosphorus, chlorophyll a, transparency and biological parameters. As the result of the studies of more than 200 water bodies, 57 localities of N. candida were documented within the investigation area. The populations of N. candida occupy mid-forest water bodies and river ox-bow lakes. A significant number of populations was also found in artificial reservoirs - fish ponds. The most suitable habitat conditions for N. candida occur in shallow waters in the shore zone with the amplitude of the water column vary from 0.5 to 2 m. Regarding the trophy level, N. candida occupies different habitats, mainly mesotrophic and also eutrophic with high content of organic matters. Considering the 15 checked morphological parameters, especially the stigma diameter, the number of carpellary teeth, flower and pollen diameters, the found and collected specimens of N. candida significantly differ from N. alba. The study confirms that N. candida ocurrs in whole lowland Poland without any regional distribution gaps. According to the IUCN guidelines to species assessment the data gathered during the presented study do not allow to classify N. candida as a vulnerable species in Poland. Still existing populations for more than 150 years, numerous stable locations, abundant populations, a habitat accessibility, a biotope extent, an ecological amplitude against the trophy level and direct human impacts suggest, that the species should be regarded as a least concern (LC) taxon.