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    Wyświetlanie 1-9 z 9
    Tytuł:
    Diversity of frugivorous and omnivorous birds in different stages of ecological succession in Amazon Rainforest fragments
    Autorzy:
    Dario, Fabio Rossano
    Powiązania:
    https://bibliotekanauki.pl/articles/1113471.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Amazon Rainforest
    birds
    ecological succession
    frugivory
    Opis:
    The diversity of birds is directly correlated with the structure of the forest. Any interfering with the vegetation produces direct effects on the avifauna through the increase, decrease, or alternation of two key attributes: food and shelter. Thus, the composition of life in the forest is altered as changes occur in vegetation that directly interferes with the population structure of the avifauna, be those changes natural or anthropic. This study was realized in fragments of the Amazon Rainforest, and the main objective was to analyze the behavior of frugivorous and omnivorous birds in three different stages of ecological succession. In forest environments where a vertical stratification of resources occurs, these species are distributed occupying a in a high diversity of trophic niches. The diversity and density of the frugivorous and omnivorous birds in the forest fragments in medium and advanced stage of ecological succession could be directly correlated not only with the structure of the forest, but also to the fact that these birds feed almost exclusively on abundant and easy to find food sources - shrub and tree fruit of certain vegetable species that are naturally abundant in the rainforest understory layer.
    Źródło:
    World News of Natural Sciences; 2017, 15; 37-48
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Geotextiles Stabilizing the Soil on Vegetation of Post-Excavation Slopes and Drainage Ditches
    Autorzy:
    Kobiela-Mendrek, Katarzyna
    Salachna, Anna
    Chmura, Damian
    Klama, Henryk
    Broda, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/125123.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    ecological succession
    synanthropic communities
    biodiversity indicators
    recultivation
    geotextiles
    Opis:
    The paper presents preliminary results of the studies concerning influence of geotextiles stabilizing the soil on vegetation of post-excavation slopes and drainage ditches. Analyzed anthropogenic habitats are situated in Międzyrzecze and Nieboczowy (Silesian Province, Southhern Poland). They have been previously subjected to reclamation treatment, consisting in installation of wool and synthetic geotextiles in the ground. The studies on plant community were conducted according to commonly applied Braun-Blanquet approach. Recorded phytocenosis were classified into Molinio-Arrhenatheretea R. Tx.1937 and Stellarietea mediae R. Tx., Lohm. et Prsg.1950 class. For comparison of plant patches growing on two variants of geotextiles Hierarchical Cluster Analysis was used. Moreover, the number of species (S), Shannon-Wiener index (H), evenness index (J) and average heights of herbal layer were calculated. It has been shown, that the type of geotextiles has a slight influence on the variability of investigated plant patches. However, relatively high differences in total coverage and mean height of herbal layer between plots protected and unprotected were observed. It shows that the geotextiles support the process of natural ecological succession on habitats with high inclination, mainly through water retention and reduction of erosion.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 1; 125-131
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physico-chemical groundwater conditions at Salix lapponum stands in Eastern Poland
    Autorzy:
    Serafin, A.
    Pogorzelec, M.
    Banach, B.
    Szczurowska, A.
    Mielniczuk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/41553.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    physicochemical condition
    ground water
    Salix lapponum
    stand
    ecological succession
    Eastern Poland
    Polska
    Opis:
    A subarctic-boreal relict species, Salix lapponum, found within the area of the Łęczna-Włodawa Lakeland (Eastern Poland), is particularly threatened with extinction due to the southern limit of its range and the specific conditions of its occurrence. This conclusion is evidenced by a systematic reduction in the number of its locations, which is accompanied by a decrease in the numbers of individuals making up its populations. The aim of the present study was to determine habitat conditions of the occurrence of Salix lapponum populations on the basis of an analysis of physico-chemical factors of groundwater at the sites associated with various stages of succession taking place in small peatland water bodies. The results of this study confirm the trend that the stands and population numbers of this species are decreasing with the intensification of ecological succession and the degree of its progress and at the same time show that this species exhibits a wide amplitude of many of the investigated factors. Among the groundwater parameters under investigation, the low level of total nitrogen, phosphorus fraction and DOC as well as the high level of Ca, pH and electrolytic conductivity can be considered to be a set of conditions that promote the maintenance of Salix lapponum populations. On the other hand, in the case of nitrates, nitrites, sulphates as well as the Na, K and Mg ions, the Kruskal-Wallis statistical test showed that the distribution of their values was invariant in relation to the studied habitats, which is probably evidence that they do not determine the development or extinction of the investigated populations in these habitats.
    Źródło:
    Dendrobiology; 2015, 73
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic insights into ecological succession from oak- (Quercus robur L.) to beech- (Fagus sylvatica L.) dominated forest stands
    Autorzy:
    Sandurska, Elzbieta
    Ulaszewski, Bartosz
    Burczyk, Jaroslaw
    Powiązania:
    https://bibliotekanauki.pl/articles/952030.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nature reserve
    ecological succession
    genetic diversity
    effective population size
    fagus
    sylvatica
    quercus robur
    Opis:
    Genetic diversity is often considered a major determinant of long term population persistence and its potential to adapt to variable environmental conditions. The ability of populations to maintain their genetic diversity across generations seems to be a major prerequisite for their sustainability, which is particularly important for keystone forest tree species. However, little is known about genetic consequences of demographic alterations occurring during natural processes of ecological succession involving changes in the species composition. Using microsatellites, we investigated genetic diversity of adult and offspring generations in beech (Fagus sylvatica L.) and oak (Quercus robur L.) populations coexisting in a naturally established old-growth forest stand, showing some symptoms of ongoing ecological succession from oak- to beech- dominated forest. In general, adult generations of both species exhibited high levels of genetic diversity (0.657 for beech; 0.821 for oak), which, however, depended on the sets of selected genetic markers. Nevertheless, several symptoms such as differences in genetic diversity indices between generations, significant levels of inbreeding (up to 0.029) and low estimates of effective population size (48–80) confirmed the declining status of the oak population. On the other hand, the uniform distribution of genetic diversity indices across generations, low levels of inbreeding (0.004), low genetic differentiation among adults and offspring and, most importantly, large estimates of effective population size (119–716), all supported beech as a successive and successful tree species in the studied forest stand.
    Źródło:
    Acta Biologica Cracoviensia. Series Botanica; 2017, 59, 1
    0001-5296
    Pojawia się w:
    Acta Biologica Cracoviensia. Series Botanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Habitat conditions of the endangered species Salix myrtilloides in Eastern Poland
    Autorzy:
    Serafin, A.
    Pogorzelec, M.
    Banach, B.
    Mielniczuk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/41037.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    habitat condition
    habitat change
    endangered species
    Salix myrtilloides
    boreal relict
    physicochemical factor
    ecological succession
    Eastern Poland
    Polska
    Opis:
    Changes in habitat conditions in the area of Eastern Poland (Polesie Podlaskie), often associated with anthropopressure, cause a reduction in the number of locations and population size of valuable and rare bog plant species, including a Pleistocene boreal relict, Salix myrtilloides. The aim of this study was to determine the current conditions of occurrence of this species based on the physico-chemical parameters of peatland piezometric groundwater. The results confirm the declining trend in the number of locations and abundance of this species in the past few decades, but at the same time they confirm the wide range of amplitude of the many investigated factors. Among the groundwater parameters studied, the low level of nitrogen fractions, phosphorus fractions, cations, and DOC can be considered to be a set of conditions promoting the preservation of the Salix myrtilloides population. The higher concentrations of phosphates, sulfates, Na, Ca, and Mg as well as higher pH and electrolytic conductivity can be considered to be presumably unfavorable. The lack of significant differences in the values of the piezometric water factors investigated for the sites with different population sizes of the studied species requires the identification of other limiting factors and the implementation of programs for its active protection in Poland.
    Źródło:
    Dendrobiology; 2015, 73
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    "Piękno nieoczywiste". Rola miejskich nieużytków w kształtowaniu nowej kategorii parków miejskich
    "Unapparent beauty". The role of urban wastelands for the shaping of a new category of city parks
    Autorzy:
    Jakubowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/369593.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    bioróżnorodność
    biotopy kolejowe
    czwarta przyroda
    sukcesja ekologiczna
    tereny zieleni nieurządzonej
    udostępnienie
    rozwój zrównoważony
    biodiversity
    ecological succession
    railway biotopes
    Nature of Fourth Kind
    public access
    undeveloped green space areas
    sustainable development
    Opis:
    Poszukiwanie nowej formy przestrzennej i estetycznej terenów silnie przekształconych, nieużytków urbanistycznych i zieleni nieurządzonej uwzględnia ich współczesną funkcję społeczną i środowiskową, w tym zachodzące spontanicznie procesy przyrodnicze. W wielu europejskich miastach dąży się do ochrony niezagospodarowanych przestrzeni oraz ich udostępnienia społecznościom miejskim w granicach nienaruszających uwarunkowań środowiska. Postulat zachowania naturalnego charakteru terenów niezorganizowanych znajduje nowe uzasadnienie w obrębie nowo powstających parków i osiedli.
    The quest for spatial and aesthetic form for strongly transformed areas, urban wastelands and non-arranged green areas accounts for their modern social and environmental function, including spontaneous natural processes. Many European cities aim at protecting undeveloped space and rendering it available to urban communities without compromising natural conditions. Newly created parks and residential estates are places where the idea to preserve natural character of unorganised areas can become reality.
    Źródło:
    Przestrzeń i Forma; 2015, 24/2; 145-162
    1895-3247
    2391-7725
    Pojawia się w:
    Przestrzeń i Forma
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vegetation of industrial waste landfills within the agglomeration of the capital city of Warsaw
    Autorzy:
    Dyguś, K. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/125485.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    industrial waste landfills
    Capital City of Warsaw
    vegetation cover
    plant succession
    ecological phytoindication
    Opis:
    This study presents the results of examination of the vegetation on the waste landfill of ArcelorMittal-Warszawa steel mill and the furnace waste landfill of Siekierki Power Station, both sites in Warsaw. The presented analyses of the field research contain detailed floristic-phytosociological data as well as botanical and ecological evaluation of the identified plants. The vegetative structures, together with the succession trends of the vegetation cover of two examined landfills, have been shown. Ecological habitat adaptations of plants and their spatial structure have been evaluated. The inventoried flora has been subjected to taxonomic, syntaxonomic and ecological classification. 154 plant species from 48 taxones in the range of families have been identified. Families characterized by the biggest abundance of species were: Compositae, grasses and Fabaceae. More than half of the live forms indentified were hemicryptophytes. The vegetation of two landfills has been dominated by synantrophic communities (Stellarietea mediae, Artemisietea vulgaris, Molinio-Arrhenatheretea), with apophytes being in the largest number. With the use of ecological indicators a broad ecological tolerance of the majority of species toward ecological factors has been observed.
    Źródło:
    Journal of Ecological Engineering; 2013, 14, 1; 22-32
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring rzek i kontrola oczyszczalni ścieków - zadania Inspekcji Ochrony Środowiska
    Monitoring of Rivers and Sewage Treatment Plants – Tasks of the Environmental Protection Inspectorate
    Autorzy:
    Trzaskowski, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/417230.pdf
    Data publikacji:
    2018-06
    Wydawca:
    Najwyższa Izba Kontroli
    Tematy:
    Water Framework Directive
    national monitoring of environment
    uniform surface water
    condition of water
    water ecological potential
    eutrophication
    rule of succession
    Opis:
    The Supreme Audit Office has assessed the compliance and effectiveness of the activities of the Environmental Protection Inspectorate (Polish: Inspekcja Ochrony Środowiska, IOŚ) related to the quality of river waters and the works conducted in order to improve their ecological and chemical condition. The audit examined, among others, the correctness of programming and monitoring of the river waters quality; the regularity of their condition assessment; the system of financing of the tasks related to rivers monitoring; the activities related to the auditing of the entities that manage municipal and industrial sewage treatment plants and the follow-up measures taken; the management of the IOŚ’s activity by the Chief Inspector of Environmental Protection, as well as the regularity of the supervision by the Minister of Environment of the implementation of the Inspectorate’s tasks related to the monitoring of rivers and control of sewage treatment plants.
    Źródło:
    Kontrola Państwowa; 2018, 63, 3 (380); 61-74
    0452-5027
    Pojawia się w:
    Kontrola Państwowa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seslerio uliginosae-Scorzoneretum purpureae (Festuco-Brometea class) in the Nida Basin (Malopolska Upland) after 90 years
    Autorzy:
    Towpasz, K.
    Stachurska-Swakon, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/56885.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Seslerio uliginosae-Scorzoneretum purpureae community
    Festuco-Brometea class
    Nida basin
    Malopolska Upland
    Sesleria uliginosa
    gypsum grassland
    xerothermic grassland
    species diversity
    succession
    steppe reserve
    ecological indicator
    Opis:
    Seslerio uliginosae-Scorzoneretum purpureae is the only xerothermic community of the Festuco-Brometea class, where a rare species known as Sesleria uliginosa occurs in Poland. A couple of sites hosting this association in the Nida Basin were described in the 1920s and 1950s. All these stands are now situated in the areas designated as xerothermic nature reserves. The study aimed at describing the present-day characteristics of this rare association, the most likely being endemic in Poland, as well as the changes that have occurred in it. The species diversity and the contribution of xerothermic plants have decreased significantly in terms of their number and cover coefficient. Some of the diagnostic species of the association have become extremely rare. Sesleria uliginosa is the only one without visible changes in their dominant position in the community. Mosses, that have played a significant role before, were among the vanished species. At the same time, an increase in number and cover of mesophilous meadows species was observed. Mesophilous grasses belong to the group of species growing in significance in the phytocoenoses. The observed changes in species composition were reflected in a statistically significant increase of nitrogen indicator value. The slow process of succession observed in the Seslerio-Scorzoneretum purpureae could be attributed to the lack of appropriate land use, e.g. mowing and grazing that have been ceased in the nature reserves.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2012, 81, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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