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1

Prawo wspoczynnika -3-2 w populacjach wybranych gatunkow mchow pod wplywem skazenia srodowiska

100%
Kosiba P.
Acta Universitatis Wratislaviensis. Prace Botaniczne
|
2001
|
tom 79
151-160
2

Studies on the ecology Urticularia vulgaris L. I.Ecological differentiation of Urticularia vulgaris L. population affected by chemical factors of the habitat

100%
Kosiba P.
Ekologia Polska
|
1992
|
tom 40
|
nr 2
147-192
3

Studies on the ecology of Urticularia vulgaris L. II. Physical, chemical and biotic factors and the growth of Urticularia vulgaris L. in cultures in vitro

100%
Kosiba P.
Ekologia Polska
|
1992
|
tom 40
|
nr 2
193-212
4

Pływacze Utricularia sp.sp., rośliny ginące

100%
Kosiba P.
Chrońmy Przyrodę Ojczystą
|
1990
|
tom 46
|
nr 2-3
5

Uprawa zachowawcza Utricularia intermedia Hayne w Ogrodzie Botanicznym we Wroclawiu

100%
Kosiba P.
Biuletyn Ogrodów Botanicznych, Muzeów i Zbiorów
|
1995
|
tom 04
5-9
6
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Self-organizing feature maps and selected conventional numerical methods for assessment of environmental quality

100%
Kosiba P.
Acta Societatis Botanicorum Poloniae
|
2009
|
tom 78
|
nr 4
335-343
The investigations concerned sites of Acer platanoides L. infected or not by Rhytisma aceriniu (Pers.) Fr. The aim of the study was to check the occurrence of R. acerinium, and whether it reflects the environmental status. Furthermore, an analysis was carried out to find out whether the applied SOFM offers additional advantages to solve problems in relation to conventional methods. Concentrations of selected elements in soils and leaves, and leaf and "tar-spot" morphometric traits were also measured. A significant differentiation was found between sites in relation to the analyzed traits. It appeared, that sites showing lower concentrations of chemical elements and proper developmental habitat conditions massive infections take place. The study showed that R. acerinium is a good biological indicator for assessment of environmental status. The applied, conventional statistical methods, SOFM and image techniques showed similar, but not identical results for assessment of environmental quality using R. acerinium. SOFM appeared to be more useful for ordination of results and ought to be taken into account as a proper tool of estimation of various plants and their biotopes.
7

Kumulacja metali i zaburzenia struktury ekologicznej populacji mchów pod wpływem skażeń chemicznych powietrza

100%
Kosiba P.
Acta Universitatis Wratislaviensis. Prace Botaniczne
|
1998
|
tom 77
8

Wymagania siedliskowe Utricularia minor L. i uprawa zachowawcza tej rosliny w Ogrodzie Botanicznym we Wroclawiu

100%
Kosiba P.
Biuletyn Ogrodów Botanicznych, Muzeów i Zbiorów
|
1992
|
tom 01
47-52
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Impact of air pollution on the occurrence of Rhytisma acerinium 'tar-spot' on maple leaves

100%
Kosiba P.
Acta Societatis Botanicorum Poloniae
|
2007
|
tom 76
|
nr 4
333-343
The aim of the study was, to find out whether the occurrence of Rhytisma acerinium and the variability of numbers of the "tar-spot" fungus on Acer platanoides leaves depend on the degree of environmental pollution. A significant variability was found between sites in relation to contents of chemical elements in soils, leaves and numbers of "tar-spots". The similarity of sites presented in dendrograms classified them as industrial, urban-agglomeration and vehicle-transport areas. The factor and PCA analyses showed that two factors differentiate the soil of the sites in respect of Fe, Cu, Co, Mo, Cr, Ni, Cd and N, S, Mn, Pb. In case of leaves of A. platanoides populations differentiate them in respect of N, S, Fe, Pb, Zn, Co, Be, Cr, Cd and Mn, Cu, Mo. The different air pollutions affect significantly the numbers of "tar-spots" on leaves. Sites with the highest contents of elements do not show "tar-spots", and the factors restricting their occurrence are the high contents, mainly of N, S (NOX, SOX) and heavy metals. In sites, with the lowest contents of these elements massive infections take place. The occurrence of R. acerinium corresponding with the level of site pollution can be used as a tool for evaluation of the degree of environmental pollution.
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Variability of morphometric leaf traits in small-leaved linden [Tilia cordata Mill.] under the influence of air pollution

100%
Kosiba P.
Acta Societatis Botanicorum Poloniae
|
2008
|
tom 77
|
nr 2
The study concerns the ecological responses of Tilia cordata Mill. to pollution and describes the advantages of estimating of the degree of environmental pollution. The aim was, to find out whether the degree of pollution conforms to the contents of the investigated elements in leaves, the assessment of variability of morphometric leaf traits and the cationic equilibrium values. The study has shown a statistically significant differentiation between the analysed sites in respect of dust fall, concentrations of elements in soils and leaves, morphometric traits of leaves and the cationic equilibrium. The hierarchical tree plot of cluster analysis qualified the sites as polluted and non-polluted. In polluted sites the contents of metals in leaves were significantly higher and the cationic equilibrium in leaves was disturbed. The surface, width and asymmetry of leaves, and also the variability of these measures were higher in polluted sites. In sites, which are not directly affected by pollution the cationic equilibrium is close to the const. value, whereas leaf traits have shown the lowest values and a considerably lower variability. The investigations show that leaf traits and cationic equilibrium correspond to the level of pollution and can be used as a tool for evaluation of the environment status.
11
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Chemical properties and similarity of habitats of Utricularia species in Lower Silesia, Poland

100%
Kosiba P.
Acta Societatis Botanicorum Poloniae
|
2004
|
tom 73
|
nr 4
The study object consisted of 28 microhabitats of five Utricularia species localized in the Province of Lower Silesia, Poland. The aim of the study was to analyse the chemical properties of water and to present the differentiation of microhabitats in respect of their chemism, i.e., whether there are differences between the microhabitats, and which of the Utricularia species show the highest tolerance to the chemical properties of water. Analysed were the contents of NO-2, NO-3, NH+4, PO-24, K+, Ca+2, Mg+2, Na+, Fe+3, SO-24, total hardness of water, organic substance, pH and trophicity of water. The differentiation of microhabitats of Utricularia intermedia and U. minor appeared to be small, but much higher in case of U. vulgaris, U. australis and U. ochroleuca. The similarity of microhabitats has been determined by cluster analysis. The tree plot showed the least similarity of U. minor and U. intermedia, which occupy an extreme position in relation to microhabitats of the remaining species. Such a grouping suggests that this species is clearly distinct because of its connection with water properties.
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Advances in ecological modelling of soil properties by self-organizing feature maps of natural environment of Lower Silesia [Poland]

63%
Stankiewicz A., Kosiba P.
Acta Societatis Botanicorum Poloniae
|
2009
|
tom 78
|
nr 2
167-174
The paper provides the use of self-organizing feature maps for determination of soil properties in its initial stage of development formed of massive rocks and how SOFM can be used for the study of environmental objects. The study area was Lower Silesia (Poland) overgrown with common, unique and protected vegetation of lichens, bryophytes and vascular plants. The parent rock of the studied soils consists of Miocene volcanites from the middle part of the Sudety Margin Fault. Soil samples were collected from 20 sites. The soil reaction (pH) and concentrations of Cd, Co, Cu, Fe, Mn, Mo, Ni, Pb, S, Ti, Zn in surface soils were analyzed. Statistical analysis was carried out by one-way ANOVA. The SOFM was used to demonstrate the non-linear ordination and visualization of soil properties. The SOFM showed the influence of parent rock on soil chemical properties generated by it. SOFM appeared to be effective and proper/fit for phenomena and processes taking place in natural environment and is useful in ecology and ought to be taken into account as a possible tool of estimation of various plants and their biotopes. The model can be useful as alternative techniques in modelling the ecological complex data, and provide a novel framework for the discovery and forecasting of ecosystem structure and behaviours in response to environmental changes.
13

Competition between mosses Catharinea undulata (L.) Web. et Mohr and Mnium affine Bland

63%
Kosiba P., Sarosiek J.
Ekologia Polska
|
1991
|
tom 39
|
nr 3
14

Uprawa Aldrovanda vesiculosa L.we Wroclawskim Ogrodzie Botanicznym

63%
Kaminski R., Kosiba P.
Biuletyn Ogrodów Botanicznych, Muzeów i Zbiorów
|
1995
|
tom 04
11-14
15

Stanowisko Utricularia intermedia Hayne i Utricularia minor L. w Strzybnicy koło Tarnowskiech Gór

63%
Kosiba P., Sarosiek J.
Acta Universitatis Wratislaviensis. Prace Botaniczne
|
1989
|
tom 39
16
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Variation in size-dependent fitness components in a terrestrial orchid, Dactylorhiza majalis (Rchb.) Hunt et Summerh., in relation to environmental factors

63%
Mroz L., Kosiba P.
Acta Societatis Botanicorum Poloniae
|
2011
|
tom 80
|
nr 2
We investigated the flowering probability and flower production in relation to plant size in a terrestrial orchid, Dactylorhiza majalis at 10 meadow sites in central and southwestern Poland. These sites differed in altitude (low, high) and management (presence or absence of mowing). At all sites, concentrations of nutrients in the soil were also measured. The probability of flowering increased significantly with the size of the plant in all populations, indicating that individuals do not flower until they reach a threshold size. Populations at high altitudes and the unmown sites had significantly lower threshold sizes for reproduction and showed sharp increase in flowering probability with plant size, compared to other populations. The threshold sizes for reproduction tended to decrease at sites rich in N and Mg and poor in P and S. Flower production was also size-dependent in all populations. Considerable between-site differences were found in the slope and the intercept of the regression between plant size and flower production. Flower production at some sites, at high altitudes, increased more steeply with plant size than at other sites. However, no pattern in size-dependent flower production was found relative to the measured environmental variables. Most of the size-dependent components of flowering probability were related to each other but not with the size-dependent flower production.
17
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Water trophicity of Utricularia microhabitats identified by means of SOFM as a tool in ecological modeling

63%
Kosiba P., Stankiewicz A.
Acta Societatis Botanicorum Poloniae
|
2007
|
tom 76
|
nr 3
The study objects were 48 microhabitats of five Utricularia species in Lower and Upper Silesia (POLAND). The aim of the paper was to focus on application of the Self-Organizing Feature Map in assessment of water trophicity in Utricularia microhabitats, and to describe how SOFM can be used for the study of ecological subjects. This method was compared with the hierarchical tree plot of cluster analysis to check whether this techniques give similar results. In effect, both topological map of SOFM and dendrogram of cluster analysis show differences between Utricularia species microhabitats in respect of water quality, from eutrophic for U. vulgaris to dystrophic for U. minor and U. intermedia. The used methods give similar results and constitute a validation of the SOFM method in this type of studies.
18

Disturbances of ionic equilibrium in mosses of contaminated areas

63%
Kosiba P., Kolon K.
Acta Societatis Botanicorum Poloniae
|
2002
|
tom 71
|
nr 4
19
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Modelling of habitat conditions by self-organizing feature maps using relations between soil, plant chemical properties and type of basaltoides

51%
Kosiba P., Stankiewicz A., Mroz L.
Acta Societatis Botanicorum Poloniae
|
2010
|
tom 79
|
nr 4
The paper shows the use of Kohonen's network for classification of basaltoides on the base of chemical properties of soils and Polypodium vulgare L. The study area was Lower Silesia (Poland). The archival data were: chemical composition of types of basaltoides from 89 sites (Al2O3, CaO, FeO, Fe2O3, K2O, MgO, MnO, Na2O, P2O5, SiO2 and TiO2), elements contents in soils (Cd, Co, Cu, Fe, Mn, Mo, Ni, Pb, S, Ti and Zn) and leaves of P. vulgare (Ca, Cd, Co, Cu, Fe, K, Mg, Mn, Mo, N, Ni, P, Pb, S, Ti and Zn) from 20 sites. Descriptive statistical parameters of soils and leaves chemical properties have been shown, statistical analyses using ANOVA and relationships between chemical elements were carried out, and SOFM models have been constructed. The study revealed that the ordination of individuals and groups of neurons in topological maps of plant and soil chemical properties are similar. The constructed models are related with significantly different contents of elements in plants and soils. These models represent different chemical types of soils and are connected with ordination of types of basaltoides worked out by SOFM model of TAS division. The SOFM appeared to be a useful technique for ordination of ecological data and provides a novel framework for the discovery and forecasting of ecosystem properties.
20
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Assessment of habitat conditions using Self-Organizing Feature Maps for reintroduction/introduction of Aldrovanda vesiculosa L. in Poland

51%
Kosiba P., Mroz L., Kaminski R.
Acta Societatis Botanicorum Poloniae
|
2011
|
tom 80
|
nr 2
The study objects were Aldrovanda vesiculosa L., an endangered species and fifty five water sites in Poland. The aim of the present work was to test the Self-Organizing Feature Map in order to examine and predict water properties and type of trophicity for restoration of the rare plant. Descriptive statistical parameters have been calculated, analysis of variance and cluster analysis were carried out and SOFM model has been constructed for analysed sites. The results of SOFM model and cluster analysis were compared. The study revealed that the ordination of individuals and groups of neurons in topological map of sites are similar in relation to dendrogram of cluster analysis, but not identical. The constructed SOFM model is related with significantly different contents of chemical water properties and type of trophicity. It appeared that sites with A. vesiculosa are predominantly distrophic and eutrophic waters shifted to distrophicity. The elevated model showed the sites with chemical properties favourable for restoration the species. Determined was the range of ecological tolerance of the species in relation to habitat conditions as stenotopic or relatively stenotopic in respect of the earlier accepted eutrophic status. The SOFM appeared to be a useful technique for ordination of ecological data and provides a novel framework for the discovery and forecasting of ecosystem properties constituting a validation of the SOFM method in this type of studies.
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