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    Wyświetlanie 1-20 z 20
    Tytuł:
    The Aerophytic Diatom Assemblages Developed on Mosses Covering the Bark of Populus alba L.
    Autorzy:
    Rybak, M.
    Noga, T.
    Zubel, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/125361.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    diatoms
    tree bark
    mosses
    diversity
    ecology
    Opis:
    The study was conducted in an old, historical park, in the northern part of Stalowa Wola city (south-eastern Poland). The aim of the study was to investigate the diversity of moss-inhabiting diatoms of the white poplar (Populus alba L.) bark. During the study, a total of 47 diatom taxa were found, three out of which were considered as dominant. Three other species are mentioned in the Red List of the Algae in Poland: Achnanthes coarctata (Brébisson) Grunow, Luticola acidoclinata Lange-Bertalot and Stauroneis thermicola (Petersen) Lund. For three species: Luticola sparsipunctata Levkov, Metzeltin & Pavlov, L. vanheurckii Van de Vijver & Levkov and Hantzschia subrupestris Lange-Bertalot, this is the first report from Poland.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 6; 113-123
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diversity of polyisoprenoids in ten Okinawan mangroves
    Autorzy:
    Basyuni, M.
    Sagami, H.
    Baba, S.
    Iwasaki, H.
    Oku, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/41117.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    diversity
    polyisoprenoid
    Okinawan mangrove
    mangrove
    root
    leaf
    polyprenol
    tree
    Opis:
    The distribution and occurrence of polyisoprenoids (dolichols and polyprenols) in the leaves and roots of nine true Okinawan mangroves and the leaves of one associate mangrove were analyzed using two-dimensional thin layer chromatography. In the leaves, the distribution of three types (I, II, and III) of polyprenols and dolichols were detected. (I) The predominance of dolichols over polyprenols (more than 90%) was observed in Avicennia marina, Bruguiera gymnorrhiza, B. gymnorrhiza (yellow leaves), and Rhizophora stylosa. (II) The occurrence of both polyprenols and dolichols is observed in Excoecaria agallocha, Kandelia obovata, K. obovata (yellow leaves), Lumnitzera racemosa, Pemphis acidula, and Sonneratia alba. (III) The predominance of polyprenols over dolichols (more than 90%) is observed in Heritiera littoralis and Hibiscus tiliaceus. However, in the roots, a type-I distribution was observed in A. marina, B. gymnorrhiza, E. agallocha, H. littoralis and S. alba. A type-II distribution was observed in K. obovata, L. racemosa, P. acidula, and R. stylosa with no type-III distribution. The chain-length distribution of dolichols in the leaves and roots was C50–C140 and C60–C120, respectively. A similar chain-length distribution of polyprenols of C45–C140 and C65–C85 was detected in the leaves and roots respectively. Taken together, sixteen out of twenty-one tissues indicated that dolichols are more abundant than polyprenols in both leaves and roots. The present study is the first to clarify the diversity of polyisoprenoids in both the leaves and roots of mangrove, suggesting the chemotaxonomic significance of polyisoprenoids in the mangrove tree species.
    Źródło:
    Dendrobiology; 2016, 75
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic diversity and mating system of Scots pine plus trees
    Autorzy:
    Wasielewska, M
    Klemm, M.
    Burczyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/41784.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Scotch pine
    Pinus sylvestris
    genetic diversity
    mating system
    genetic variation
    plus tree
    plant quality
    tree
    Opis:
    We have investigated genetic diversity and the mating system of Scots pine plus trees from the Tuchola Forests – Poland, using allozymes as genetic markers. The studied plus trees possess high genetic diversity (expected heterozygosity He = 0.427) and low inbreeding (Wright’s index F = –0.028), which is comparable to Scots pine trees observed in other studies in natural populations and seed orchards. The mating system analyses revealed that almost all offspring produced by the plus trees were due to outcrossing (tm = 0.983), with no apparent bi-parental inbreeding. The estimate of correlation of paternity indicated that each of mother trees is pollinated on average by a relatively large number of effective males (Nep = 30.3). The observed genetic diversity and mating system patterns indicate that the seeds produced by the studied plus trees possess high genetic variation needed in reforestation processes.
    Źródło:
    Dendrobiology; 2005, 53; 57-62
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tree diversity and management of Village Common Forests in Bandarban
    Autorzy:
    Kamrul, K.I.
    Jashimuddin, J.
    Hossain, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/10013.pdf
    Data publikacji:
    2017
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    tree
    species diversity
    management
    biodiversity
    Village Common Forests
    Bandarban district
    Bangladesh
    Opis:
    Village Common Forests (VCF) are used sustainably for water source conservation, livelihoods and other biomass needs ofethnic communities in the hilly areas of Bangladesh. The current forest degradation rate warrants the importance and potentiality of VCF for sustainable natural resources management. This study was conducted in two VCF of Lama and RumaUpazila at Chimbuk hill range in Bandarban district to explore the indigenous management techniques and tree species diversity. To identify tree species diversity, eighteen plots (9 plots from each VCF) were selected at different hill position (top, middle and bottom) by stratified random sampling method with the dimension of 20m×20m per plot. Shiner-winner and Simpson index were used to calculate the tree species diversity. According to the analyses, it was found that diversity was higher in top of the hill, but species density (stem/ha) was higher in the valley. It was also found that 23000 seedlings/ha regenerated naturally and among the 31 identified families, Moraceae was dominant where the density was 354 stems/ha with basal area 52.63 m2/ha. The dominant species were Schleicher oleosaand Anisopterascaphula and important non-timber species were Melocannabaccifera and Calamusgurubagrowing abundantly in the study areas. It was observed that the VCF were managed by ethnic Mro community with two different committees (customary and executive) who made some rules for natural forest conservation. This management practice is not only conserving hill forests, but also helping to improve degraded forest and create new habitats for biodiversity in the study area.
    Źródło:
    Environment, Earth and Ecology; 2017, 1, 2
    2543-9774
    2451-4225
    Pojawia się w:
    Environment, Earth and Ecology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Association of water-borne conidial fungi with epiphytic tree fern [Drynaria quercifolia]
    Autorzy:
    Karamchand, K S
    Sridhar, K.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/66978.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    fungi association
    conidial fungi
    epiphytic tree fern
    Drynaria quercifolia
    aquatic fungi
    tree fern
    diversity
    conidium
    canopy
    hyphomycete
    Opis:
    The live and dead tissues, and trapped leaf litter by the epiphytic tree fern Drynaria quercifolia associated with riparian tree species of Konaje (west coast) and Sampaje (Western Ghat) streams of India during dry (summer) and wet (monsoon) seasons yielded 37 species of water-borne conidial fungi on bubble chamber incubation. Dead bracket leaves of fern possess the highest species as well as conidia in Konaje, while the trapped leaf litter in Sampaje. During summer, the diversity was highest in bracket leaves in both locations, while in monsoon season it was highest in rhizomes of Konaje and in trapped leaf litter in Sampaje. Even though the conidial output from tissues of Drynaria and trapped leaf litter were not equivalent to stream submerged leaf litter, the species richness ranged between 40% and 75% in Konaje and Sampaje streams. As stable epiphyte, Drynaria exposed to wet and dry regimes in tree canopies of west coast and Western Ghats likely to serve as host for perfect states of water-borne hyphomycetes.
    Źródło:
    Acta Mycologica; 2009, 44, 1; 19-27
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie florystyczne wybranych alei gmin: Namysłów, Świerczów oraz Domaszowice na Dolnym Śląsku
    Floristic Diversity of Selected Tree Alleys in Lower Silesian Communes: Namysłów, Świerczów and Domaszowice
    Autorzy:
    Tomaszewska, K.
    Bogdańska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1188063.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Przyrodniczy we Wrocławiu
    Tematy:
    zróżnicowanie
    flora
    Dolny Śląsk
    aleja
    drzewo
    floristic diversity
    alley
    tree
    Lower Silesia
    Opis:
    One of the functions of roadside tree planting is biodiversity protection. The analysis often alleys from Lower Silesia region confirmed their floristic wealth. Nineteen tree species and five shrub species were recognized. Planted species forming alleys are predominant among sites was different, but two alleys attract an attention with their compositional arrangement: chestnut lane in Staroscin ended with a group of old, monumental oaks surrounding a historic figure, and two-part lane in Biestrzykowice. The cherry alley in Dąbrowa Namysłowska should be covered by a special care since there are less and less alleys of this type. Floristic diversity may be seen especially clearly in the case of roadside herbaceous plants. In all analysed sites 123 species of herbaceous plant belonging to 32 families were recognised. The number of individuals from particular families was varied. The most abundant were aster family (Asteraceae), blue grass family (Poaceae) and pea family (Fabaceae). High diversity is also confirmed by the fact that only two species were present in all ten alleys, while as much as 49% of species were observed once only. Among recognized species, the predominant are those characteristic for roadsides, however also another ones from neighbouring areas may be found. The alleys may also be a place of protected species occurrence bear's-garlic ( Allium ursinum) or ones characteristic for quite other kinds of sites triangle pink (Dianthus deltoides).
    Źródło:
    Architektura Krajobrazu; 2011, 1; 27-31
    1641-5159
    Pojawia się w:
    Architektura Krajobrazu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Macrofungi of wooded patches in the agricultural landscape. I. Species diversity
    Grzyby wielkoowocnikowe zadrzewien srodpolnych w krajobrazie rolniczym. I. Roznorodnosc gatunkowa
    Autorzy:
    Kujawa, A
    Powiązania:
    https://bibliotekanauki.pl/articles/67311.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    macrofungi
    wooded patch
    agricultural landscape
    species diversity
    tree
    nature conservation
    fungi community
    Opis:
    This article begins a four-part series, which presents the results of mycological research carried out in 2000-2007 in the agricultural landscape of the General Dezydery Chłapowski Landscape Park. This part includes description of the study area and field research methods, as well as a list and localities of 617 macrofungal taxa recorded in the Park. The next parts of this series will deal with: species that are rare, protected by law or recorded for the first time in Poland; the role of wooded patches for preservation of fungal diversity in the agricultural landscape; and changes in species diversity and structure of fungal communities in forest communities under strong human pressure.
    Powyższy artykuł jest pierwszym z serii czterech artykułów prezentujących wyniki badań nad grzybami wielkoowocnikowymi przeprowadzonych w krajobrazie rolniczym Wielkopolski. W latach 2000-2007 badano różnorodność gatunkową grzybów wielkoowocnikowych zadrzewień śródpolnych, parków wiejskich i lasów gospodarczych w Parku Krajobrazowym im. gen. Dezyderego Chłapowskiego. Przez trzy lata badania prowadzono na 50 stałych powierzchniach. Przez cały okres badań zbierano też grzyby poza stałymi powierzchniami. Stwierdzono występowanie 569 taksonów macromycetes, a po uwzględnieniu nielicznych danych z literatury liczba znanych taksonów z tego terenu wynosi 615. W pierwszym artykule zawarto opis terenu badań oraz wykaz gatunków i ich lokalizację. Kolejne artykuły będą dotyczyły: gatunków chronionych, rzadkich oraz stwierdzonych w Polsce po raz pierwszy,• roli zbiorowisk drzewiastych w ochronie różnorodności gatunkowej grzybów wielkoowoc• nikowych w krajobrazie rolniczym, zmian w różnorodności gatunkowej i strukturze zbiorowisk grzybów w zbiorowiskach le• śnych będących pod wpływem silnej antropopresji.
    Źródło:
    Acta Mycologica; 2009, 44, 1; 49-75
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utility landscape assessment of some fruit trees alley in the values Stare Czarnowo (province Zachodniopomorskie)
    Ocena walorów krajobrazowych wybranych alei drzew owocowych na terenie gminy Stare Czarnowo (województwo zachodniopomorskie)
    Autorzy:
    Nowak, G.
    Stanislawski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/85231.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Pomorska w Słupsku
    Tematy:
    landscape diversity
    assessment
    fruit tree
    fruit alley
    alley tree
    old alley
    rural landscape
    Stare Czarnowo commune
    Pomeranian region
    Opis:
    This thesis presents the research results on fruit tree alleys located in the area of Stare Czarnowo commune and their influence on the regional landscape diversity. Fruit tree alleys serve as a perfect landscape arranging component which orders the space and performs many natural functions. After the II World War trees were sparsely planted along the road sides and for over 60 years alleys they created have been thoughtlessly devastated. Few of them remained until today, mainly in the West Pomeranian district. In the territory of Stare Czarnowo there were 8 fruit alleys of a different habitat to select and take stock of. Among them: woodlots, roadside shrubs and the avenue created in the area of Dendrological Garden in Glinna. Specimen considered for the research had to be at least 30 cm in the trunk circumference. Among 374 of stock taken plants 4 were identified as fruit trees. There were 125 specimen of the size qualifying them to be regarded as the nature monuments. Fruit trees alleys have a huge impact on diversity of natural habitat. Due to its historical grounds they should be more often and widely used in shaping the rural landscape.
    W pracy przedstawiono wyniki badań nad alejami drzew owocowych zlokalizowanych na terenie gminy Stare Czarnowo oraz ich wpływem na waloryzację krajobrazu regionu. Aleje drzew owocowych stanowią doskonały eksperyment kompozycyjny, który porządkuje przestrzeń oraz spełnia wiele funkcji przyrodniczych. Po II wojnie światowej rzadko sadzono drzewa owocowe przy drogach, a przez ponad 60 ostatnich lat bezmyślnie niszczono utworzone z nich aleje. Nieliczne z nich utrzymały się do dzisiaj, m.in. w województwie zachodniopomorskim. Na terenie gminy Stare Czarnowo wytypowano i zinwentaryzowano 8 alei różniących się typem siedliska. Wytypowano aleje śródpolne i przydrożne oraz aleję utworzoną na terenie Ogrodu Dendrologicznego w Glinnej. Do badań wzięto pod uwagę jedynie okazy o obwodzie pnia minimum 30 cm. Wśród 374 zinwentaryzowanych roślin zidentyfikowano 4 gatunki drzew owocowych. Odnotowano 125 okazów o wymiarach kwalifikujących je do uznania za pomniki przyrody. Aleje drzew owocowych wpływają na różnorodność biologiczną obszaru, na którym występują. Ze względu na podłoże historyczne oraz swe walory estetyczne powinny być szerzej wykorzystywane w kształtowaniu krajobrazu obszarów wiejskich.
    Źródło:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2017, 21
    1643-0115
    Pojawia się w:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Branching system of the Mexican hawthorn “Tejocote” (Crataegus spp.)
    Autorzy:
    Perez-Ortega, S.A.
    Mendez-Santiago, A.H.
    Nieto-Angel, R.
    Jankiewicz, L.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2039.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Ogrodnictwa
    Tematy:
    edible hawthorn
    Mexican hawthorn
    fruit tree
    Crataegus
    canopy architecture
    branching system
    inflorescence
    morphological diversity
    Źródło:
    Journal of Horticultural Research; 2013, 21, 1
    2300-5009
    Pojawia się w:
    Journal of Horticultural Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An assessment of genetic diversity following natural regeneration of Sorbus torminalis in the Forest District of Jamy (northern Poland)
    Autorzy:
    Bednorz, L.
    Myczko, L.
    Kosinski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/41322.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    assessment
    genetic diversity
    natural regeneration
    Sorbus torminalis
    conservation
    wild service tree
    Forest District Jamy
    Polska
    Opis:
    The subject of the study was a population of Sorbus torminalis resulting from spontaneous regeneration from seeds in northern Poland at the north-eastern limit of the species distribution. The population, occupying a fenced plot of 1.72 ha in the Forest District of Jamy, amounted to 579 individuals of variable age classes up to about 19 years old. Six polymorphic gene loci: MDH-B, ME-A, 6PGD-B, ADH-B, PGM-A, PGM-B were studied in 532 individuals recruited post-fencing and 21 potentially parental, adult trees. The analysis showed similarly high levels of genetic diversity within both subsets of individuals but there was also a noticeable change in genetic structure between them. Detailed genetic analysis of the post-fencing recruits revealed lack of significant differences between different age groups based on DBH within the fenced plot.
    Źródło:
    Dendrobiology; 2015, 73
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tree species diversity and above-ground biomass of natural temperate forest: montane versus lowland forest
    Autorzy:
    Gazda, A.
    Miscicki, S.
    Chwistek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/41218.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    tree
    plant species
    species diversity
    aboveground biomass
    temperate forest
    mountain forest
    lowland forest
    species richness
    Opis:
    We studied the relationship between tree-species diversity and the above-ground biomass on an example of two natural Polish forest with different altitiudinal range, plant species pool, vegetation and climatic conditions. The study sought to determine whether: (1) above-ground biomass in natural forests correlates with tree-species diversity irrespective of the kind of forest (montane or lowland), and (2) the relationship in question is negative, (3) the above-ground biomass is greater in montane forests than in lowland ones. Natural forests present in 1º Polish Gorce Mountains (montane forest) alongside comparable data for the 2º world-renowned lowland forest that is present in the Białowieża National Park. Data were collected within 558 sample plots (á 200-square-metre). The diameter at breast height of all trees with girths of or exceeding 12 cm was measured. To compute above-ground biomass we calculated dry masses for each tree on the basis of values for dbh and height, next we summed these values for all species present within each plot. The number of tree species on a plot ranged from only one (mainly in spruce stands) to six (in mixed deciduous lowland forest stands). The above-ground accumulated biomass ranged from 6 to 1155 (average 251±13) t ha–1 within the lowland forest, and from 2 to 849 (average 242±8) t ha–1 within the montane forest. We concluded that there was a humped-back shaped relationship between tree-species diversity and above-ground biomass in both lowland and montane natural forests.
    Źródło:
    Dendrobiology; 2015, 73
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geographical pattern of haplotypic variation in Austrian native stands of Picea abies
    Autorzy:
    Mengl, M
    Geburek, T.
    Schueler, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/41567.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    international conference
    Europe
    forest ecosystem
    plant breeding
    tree
    Norway spruce
    Picea abies
    mitochondrial DNA
    biogeography
    genetic diversity
    haplotypic variation
    native stand
    Austria
    tree species
    Opis:
    In the present study we analysed the mitochondrial intraspecific variation in natural populations of Norway spruce. We used the second intron of the nad1 gene, which contains two polymorphic short tandem repeats. Due to the maternal inheritance of mitochondrial DNA in Norway spruce, the spatial distribution of haplotype DNA allows insights into seed dispersal and artificial seed transfer. A total of 504 trees distributed all over Austria were genotyped, and 9 different haplotypes could be found. A geographical map of the haplotype variation pattern of Picea abies is presented.
    Źródło:
    Dendrobiology; 2009, 61 Supplement
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fruit and endocarp properties in relation to intra‐varietal morphological diversity of Montenegrin olive variety ‘Zutica’
    Autorzy:
    Lazović, B.
    Perović, T.
    Adakalić, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/11894575.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    Montenegro
    olive tree
    Olea europaea
    plant cultivation
    Zutica cultivar
    fruit
    fruit trait
    fruit property
    endocarp
    morphological diversity
    Opis:
    ‘Žutica’ is the most widespread olive variety of Montenegro, accounting for as much as 98% of olive trees in the southern part of Montenegrin coastal area – Bar subarea. The primary purpose of variety ‘Žutica’ is olive oil production due to its small fruits and high oil content, although it is also much appreciated as a table olive, prepared in local ways as green and black. As ‘Žutica’ is an old olive variety there are some phenotypic differences recorded in the fruit properties. Here we evaluated 22 accessions from the area of Bar and Ulcinj, where this variety is very widespread (almost mono-varietal), for 34 parameters of the fruit and endocarp. Significant differences in fruit properties were observed in the accessions. Average fruit size in nine accessions was above 3.5 g and in two accessions more than 4.0 g. Number of fruits per kg ranged from 224 to 330. Cluster analysis and principal component analysis (PCA) were used to group the accessions and evaluate the morphological variability. The accessions clustered into two groups, with two off group accessions of the highest fruit weight. The results showed differences among individuals, especially for large fruit accessions that should be investigated further.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 71-81
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic diversity and relationship of Hunan province of China local tree peonies based on SSR markers
    Autorzy:
    Zhang, M.-H.
    Jin, X.-L.
    Wen, Y.-F.
    Shen, S.
    Wen-Xing
    Wu, S.
    Lu, J.-H.
    Ye-Ye
    Powiązania:
    https://bibliotekanauki.pl/articles/12665369.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    China
    Hunan Province
    plant cultivation
    tree peony
    Paeonia suffruticosa
    ornamental plant
    genetic diversity
    genetic relationship
    SSR marker
    Opis:
    Paeonia sect. Moutan is a wide known ornamental plant in the world. The objective of this study was to provide the theoretical basis for scientific preservation and utilization of tree peony resources of Hunan province of China. Simple sequence repeat (SSR) markers were applied to reveal the genetic diversity and relationship of 21 tree peony resources and 45 domestic and foreign tree peony cultivars. Clear bands, the size of which ranged from 115 bp to 379 bp, were detected with 14 primers. In total, 90 alleles were detected and the number of alleles detected with one primer varied between 5 and 13; the number of effective alleles ranged from 1.183 to 2.070; the polymorphism ratio of each locus was 100%. The observed heterozygosity, which ranged from 0.120 to 0.851 with an average of 0.532, was larger than the expected one, which ranged from 0.090 to 0.470 with an average of 0.300. Shannon index ranged from 0.137 to 0.695 and fixation index ranged from −0.332 to −0.869. The results show abundant genetic diversity in tree peony of Hunan province and SSR markers distinguishing homonymous tree peony resources successfully.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 4; 213-223
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Odnowienie naturalne drzew w Puszczy Białowieskiej
    Natural regeneration of trees in the Bialowieza Forest
    Autorzy:
    Brzeziecki, B.
    Andrzejczyk, T.
    Żybura, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/985949.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Bialowieska
    odnowienia naturalne
    drzewa lesne
    topola osika
    Populus tremula
    brzoza brodawkowata
    Betula pendula
    brzoza omszona
    Betula pubescens
    olsza czarna
    Alnus glutinosa
    sosna zwyczajna
    Pinus sylvestris
    dab szypulkowy
    Quercus robur
    jesion wyniosly
    Fraxinus excelsior
    klon pospolity
    Acer platanoides
    wiaz gorski
    Ulmus glabra
    swierk pospolity
    Picea abies
    lipa drobnolistna
    Tilia cordata
    grab pospolity
    proces dorastania
    ekosystemy lesne
    dynamika lasu
    active approach
    deer browsing
    long−term study
    multifunctional forest management
    natural recruitment
    nature conservation
    silvicultural treatment
    strict protection
    tree competition
    tree diversity
    Opis:
    Since several years already, a massive infestation of bark beetle has taken place in the Białowieża Forest, decimating a local Norway spruce population. In consequence, many open areas appeared, practically deprived of trees and other forest vegetation. The existence of such areas has a very negative impact on multiple values of the Białowieża Forest: natural, social, economical and landscape−aesthetic values. The local forest administration prepared a strategy aimed at active restoration of diverse woodland communities typical for the Białowieża Forest in all places, where bark beetle infestation wiped up the spruce stands. Those plans were criticized by representatives of the environmental organizations who blamed the foresters for transforming the Białowieża Forest into ‘plantation’ and claiming that such measures are inconsistent with the existing forest management and protection plan. The postulate of environmentalists is that the recovery of woodland communities should proceed completely naturally. Taking into account the above mentioned controversies, in this paper we examine the issue of natural regeneration in the Białowieża Forest in detail. In particular, we try to determine to which extent this method of forest reproduction enables re−establishment of compositionally diverse woodland communities, distinguished by a high level of biological diversity and able to provide a wide range of commodities and benefits important for today’s society. Based on an extensive literature review we show that a combination of different (abiotic and biotic) factors, influencing establishment and subsequent growth of seedlings and saplings in the Białowieża Forest has long been strongly unfavorable for many tree species. In this regard, one should particularly emphasize the negative role of large herbivores, especially red deer, which is present in the Białowieża Forest since the end of 19th century, when it became a private hunting ground for Russian tzars. The devastating effect of deer browsing on natural regeneration is a well−documented phenomenon and widely recognized problem in the forestry practice. The fencing of young forest generation against game pressure is an indispensable measure, needed to secure the continuous existence of several tree species (first of all those palatable and vulnerable to browsing). Very strong arguments for an active approach to the described problem delivers also a long−term study on natural forest dynamics conducted since 1936. It shows that under conditions of strict protection the regeneration capacity of the Białowieża tree species is very variable. These differences lead to the compositional simplification and impoverishment of many tree stands, with numerous negative consequences for local biodiversity. We underline that an active management strategy is a basic prerequisite for maintaining a diverse character of the Białowieża stands and their ability to provide all important ecosystem services on a sustainable basis. Such a strategy should include, beside of the phase of establishment, also the subsequent developmental stages of new forest generations. The general goal of such a strategy should be to secure a possibly high diversity of tree composition and to enable the development of tree species representing a full range of life−history strategies and playing different successional roles: from typical pioneer species, through intermediate, to climax species.
    Źródło:
    Sylwan; 2018, 162, 11; 883-896
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Implication of forest zonation on tree species composition, diversity and structure in Mabira Forest, Uganda
    Autorzy:
    Weldemariam, E.C.
    Jakisa, E.S.
    Ahebwe, D.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/9997.pdf
    Data publikacji:
    2017
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    forest zonation
    management zone
    tree
    woody species
    plant species
    species composition
    species diversity
    species structure
    Mabira Forest Reserve
    Uganda
    Opis:
    The study aimed to investigate effectiveness of forest management zoning in conserving biodiversity of Mabira forest reserve. The study sites buffer, production, and strict nature reserve management zones were purposively selected. This was undertaken through investigating woody species diversity, composition and structure. A total of 60 sampling plots with a size of 20 m x10 m were used to collect vegetation data. Variables such as woody plant species identification and counts as well as diameter at breast height (DBH) of trees were done. The result depicted a total of 65 woody species; 39 in buffer, 19 in productions and 37 in strict nature reserve. Of these, only 9 trees species were found common to all zones and their Sorensen similarity coefficient was 0.2213. The population structure of the buffer and strict nature reserve zones was found to be a J - shape pattern, whereas the production zone shown an inverted J-shape pattern. Higher woody species diversity was depicted in the buffer and strict nature zones with (H’=2. 73512) and (H’=2. 68412) respectively, and lower in a production zone (H’=1. 63628). The evenness index value of a buffer zone was (J =0. 746574), strict nature (J= 0.743335) and production (J=0. 555719). The production zone had shown higher IVI values followed by buffer and strict nature reserve zone. The most important woody species identified based on their IVI value were Broussonetia papyrifera (Production), Acalypha neptunica (Buffer), Funtumia Elastica (strict nature reserve). The existing forest management is effective in conserving the biodiversity of the forest reserve. Nevertheless, the production zone was still suffering from exploitation of the surrounding community, hence serve for protecting the remaining management zones from further human interference. Further investigation is also required on the adjacent community perceptions of the forest management zoning.
    Źródło:
    Environment, Earth and Ecology; 2017, 1, 1
    2543-9774
    2451-4225
    Pojawia się w:
    Environment, Earth and Ecology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in plant species composition in abandoned and restored limestone grasslands - the effects of tree and shrub cutting
    Autorzy:
    Dzwonko, Z
    Loster, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/57086.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    cutting
    Polska
    grassland
    secondary succession
    restoration
    species diversity
    species composition
    tree
    composition change
    plant species
    shrub
    time series
    botany
    permanent plot
    Opis:
    Abandoned semi-natural limestone grasslands are often overgrown by shrubs and trees. Little is know if and to what extant xerothermic limestone grasslands can be restored by tree cutting. This was tested in a 12-year experiment after the clearing of a 35-year-old secondary pine wood developed on unmanaged grassland in the close proximity of not overgrown old grassland. After 12 years, there were no significant differences in the number of field layer species on the plots in the old and restored grasslands. But over this period the number of meadow species increased in all sites, while the number of xerothermic calcareous species increased significantly only in the old grassland plots. The developing shrub layer negatively influenced the number of nitrophilous and ruderal species in grasslands restored in the former close and open woods, and the number of all species, including the number of non-tufted perennials and perennials with vegetative spread, in the former open wood. The number of meadow species increased in years with higher precipitation in late spring and early summer. The obtained results suggest that in overgrowing grasslands shrubs and trees should be cut every few years, before their covers increase to about 30%. However, this treatment alone will not stop the changes to communities with dominance of tall and vegetatively spreading grasses and forbs. Cutting trees and shrubs in sites where most grassland species have already vanished, without additional managements supporting their dispersal, seedling recruitment and development, is not sufficient to restore limestone grasslands rich in xerothermic species.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2008, 77, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Water-borne hyphomycetes in tree canopies of Kaiga (Western Ghats), India
    Autorzy:
    Sudheep, N.M.
    Sridhar, K.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/67068.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    water-borne hyphomycete
    hyphomycete
    diversity
    conidium
    leaf litter
    sediment
    stemflow
    tree canopy
    Kaiga
    Western Ghats
    India
    life cycle
    aquatic habitat
    canopy
    Opis:
    The canopy samples such as trapped leaf litter, trapped sediment (during summer), stemflow and throughfall (during monsoon) from five common riparian tree species (Artocarpus heterophyllus, Cassia fistula, Ficus recemosa, Syzygium caryophyllatum and Xylia xylocarpa) in Kaiga forest stand of the Western Ghats of southwest India were evaluated for the occurrence of water-borne hyphomycetes. Partially decomposed trapped leaf litter was incubated in bubble chambers followed by filtration to assess conidial output. Sediments accumulated in tree holes or junction of branches were shaken with sterile leaf disks in distilled water followed by incubation of leaf disks in bubble chamber and filtration to find out colonized fungi. Stemflow and throughfall samples were filtered directly to collect free conidia. From five canopy niches, a total of 29 water-borne hyphomycetes were recovered. The species richness was higher in stemflow and throughfall than trapped leaf litter and sediments (14-16 vs. 6-10 species). Although sediments of Syzygium caryophyllatum were acidic (5.1), the conidial output was higher than other tree species. Stemflow and throughfall of Xylea xylocarpa even though alkaline (8.5-8.7) showed higher species richness (6-12 species) as well as conidial load than rest of the tree species. Flagellospora curvula and Triscelophorus acuminatus were common in trapped leaf litter and sediments respectively, while conidia of Anguillospora crassa and A. longissima were frequent in stemflow and throughfall. Diversity of water-borne hyphomycetes was highest in throughfall of Xylea xylocarpa followed by throughfall of Ficus recemosa. Our study reconfirms the occurrence and survival of diverse water-borne hyphomycetes in different niches of riparian tree canopies of the Western Ghats during wet and dry regimes and predicts their possible role in canopy as saprophytes, endophytes and alternation of life cycle between canopy and aquatic habitats.
    Źródło:
    Acta Mycologica; 2010, 45, 2
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zebra, Opowieści spod oliwnego drzewa i Bahar znaczy wiosna jako nowe propozycje lekturowe o wielokulturowości
    The Zebra, Bahar Means Spring, Tales Under the Olive Tree – new possibilities of reading about multiculturalism
    Autorzy:
    Sadzikowska, Lucyna
    Powiązania:
    https://bibliotekanauki.pl/articles/511005.pdf
    Data publikacji:
    2018
    Wydawca:
    Wydawnictwo Uniwersytetu Śląskiego
    Tematy:
    children’s and youth literature multiculturalism
    diversity
    respect for otherness
    The Zebra
    Bahar Means Spring
    Tales Under the Olive Tree
    multicultural education
    Opis:
    The article aims at presenting children’s and youth books published in 2013, 2014 and 2015 by the publishing house called ‘Poławiacze Pereł’. The author analyses the content of three short stories: The Zebra by Ifi Ude, Bahar Means Spring by Agnieszka Aysen Kaim and Tales Under the Olive Tree by Aida Amer. The article author presents her considerations on multiculturalism as a subject of Polish education. The students’ comprehension of ‘otherness’ may enable them to respect and accept the differences in race, appearance, religion, behaviour, culture, clothing and preferences.
    Źródło:
    Postscriptum Polonistyczne; 2018, 2 (22) Glottodydaktyka wśród dzieci i młodzieży wobec wyzwań wielo-, transkulturowości i ruchów migracyjnych; 225-238
    1898-1593
    2353-9844
    Pojawia się w:
    Postscriptum Polonistyczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany struktury genetycznej pomiędzy populacją rodzicielską a potomną w drzewostanie nasiennym sosny zwyczajnej (Pinus sylvestris L.)
    Changes of genetic structure between parental and offspring populations in a seed stand of Scots pine [Pinus sylvestris L.]
    Autorzy:
    Dzialuk, A.
    Burczyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1018561.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany nasienne
    sosna zwyczajna
    lesnictwo
    zmiany struktury genetycznej
    populacje rodzicielskie
    populacje potomne
    Pinus sylvestris
    drzewa lesne
    genetic diversity
    genetic erosion
    seed tree stand
    scots pine
    Opis:
    Eight isozyme gene loci were used to compare genetic structure and variation of parental and offspring populations of Scots pine (Pinus sylvestris L.) in the seed tree stand located in the Woziwoda Forest District of the Tuchola Forest. Although, the estimated parameters indicate small reduction of heterozygosity in offspring populations, the stand may be considered as a valuable seed source for reforestation.
    Źródło:
    Sylwan; 2006, 150, 10; 30-38
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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