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    Wyświetlanie 1-9 z 9
    Tytuł:
    The hepatics reported from the Antarctic and an outline of their phytogeography
    Autorzy:
    Ochyra, Ryszard
    Váňa, Jiři
    Powiązania:
    https://bibliotekanauki.pl/articles/2053145.pdf
    Data publikacji:
    1989
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Antarctica
    Hepaticae
    bryology
    phytogeography
    Źródło:
    Polish Polar Research; 1989, 10, 2; 211-229
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Taxus baccata in Morocco: a tree in regression in its southern extreme
    Autorzy:
    Romo, Angel
    Iszkuło, Grzegorz
    Taleb, Mohammed Seghir
    Walas, Łukasz
    Boratyński, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/956808.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    dakhs
    ecology
    forestry
    phytogeography
    plant conservation
    niche modelling
    Opis:
    The knowledge on chorology of species is basic for biogeographic and ecological studies and for conservation actions. The data on the chorology of Taxus baccata in Morocco have not been studied. The bibliographic resources, herbarium material, unpublished data of several botanists and the authors’ field notes have been reviewed. Two yew populations on Jbel Lakrâa in the Rif and near Bekrit in the Middle Atlas were measured to verify demographic structure and health conditions. The Maxent model of predicted habitat based on bioclimatic variables was used to evaluate the potential geographic range of T. baccata. The species occurs in the mountain areas of northern Morocco: in the Rif, the Middle and High Atlas, at altitudes between (500) 1200 and 2000 (2350) m. In the High Atlas, it reaches its southernmost locations within the geographic range. The populations represented by the highest number of individuals are found in the Western Rif and Middle Atlas, while from the High Atlas only single, isolated individuals are known. The yew occurred preferably in forests of Cedrus atlantica, Abies maroccana, groves of Betula fontqueri, Ilex aquifolium and Prunus lusitanica and in riparian forests located in narrow gorges. Seedlings were observed only at single localities. The population of T. baccata in the Rif presented a good health condition with successful regeneration, while the population in the Middle Atlas was in a much worse state, where only 4–8 m high yews were observed, without natural regeneration. The Maxent model of predicted habitat, based on bioclimatic variables, suggests that T. baccata could occur today in much broader mountainous areas in Morocco, especially in the Rif and Middle Atlas. However, the progressive decline of this species in Morocco indicates the significant importance of other factors on yew distribution, including microsite conditions and human pressure. Taxus baccata in Morocco is in regression at most of its localities and should be treated as a vulnerable species. Measures to ensure the yew’s conservation are needed, especially at its southernmost localities in the High Atlas.
    Źródło:
    Dendrobiology; 2017, 78; 63-74
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A noteworthy disjunction of the epiphytic moss Lewinskya graphiomitria
    Autorzy:
    Plasek, V.
    Kominkova, Z.
    Cihal, L.
    Fialova, L.
    Guo, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130697.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Asia
    Australasia
    China
    intercontinental disjunction
    New Zealand
    Orthotrichum
    phytogeography
    Opis:
    Lewinskya graphiomitria (Müll. Hal. ex Beckett) F. Lara, Garilleti & Goffinet, hitherto considered a New Zealand endemic species, has recently been repeatedly found at different localities in China, thereby representing an intriguing example of a remote intercontinental disjunction among the bryophytes. Herein, the current distribution of this species is reviewed and mapped and its disjunct occurrence in the two widely separated areas is discussed. Maps showing the quantification of extrapolated projection areas for L. graphiomitria are also presented. A possible way of its migration from New Zealand to Asia or vice versa is explained.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2020, 89, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ephemerum homomallum (Pottiaceae) and Torrentaria aquatica (Brachytheciaceae), Two additional American moss species new to Africa
    Autorzy:
    Ochyra, R.
    Van Rooy, J.
    Bryan, V.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130699.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Afro-American disjuncts
    amphiatlantic distribution
    Bryophyta
    Musci
    Neotropics
    phytogeography
    South Africa
    taxonomy
    Opis:
    Two American species of moss, Ephemerum homomallum Müll. Hal. (Pottiaceae) and Torrentaria aquatica (A. Jaeger) Ochyra (Brachytheciaceae), are reported as new to Africa, based on collections from the Limpopo and Eastern Cape provinces of South Africa, respectively. These discoveries changed the phytogeographical status of both species, which now belong to the Afro-American distribution element. Global geographical ranges of these two species are reviewed and mapped, and the amphiatlantic distribution pattern of mosses is briefly summarized. A history of the muscological exploration of southern Africa is briefly considered and recent additions to the moss flora of this area are reviewed.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2020, 89, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Climate-Induced Gradients of Populus sp. Forest Biomass on the Territory of Eurasia
    Autorzy:
    Usoltsev, V.
    Shobairi, O.
    Chasovskikh, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/123560.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    genus Populus sp.
    biomass
    phytogeography
    woody story
    understory
    natural zones
    climate continentality index
    Opis:
    On the basis of the compiled database in a number of 413 sample plots with determinations of forest biomass of the genus Populus sp. on the territory of Eurasia from France to southern China and Japan statistically significant transcontinental decreasing of stem, aboveground and total biomass as in the direction from northern temperate to subequatorial zonal belt and in the direction from the Atlantic and Pacific coasts to the continentality pole in Siberia is established. Unlike wood story, understory biomass in these directions has not decreased, and increasing. The root: shoot ratio increases in the range between northern temperate and subequatorial zonal belts from 15 to 32% and within the southern temperate zone it monotonically increases from 5% on the oceanic coasts to 40% near continentality pole. The ratio of understory to wood story biomass increases from 0.3 to 1.6% ranging from northern temperate to subequatorial zonal belt, and within the south temperate zone it monotonically increases from zero values near Atlantic and Pacific coasts, approaching the level of 40% near the continentality pole. The results can be useful in the management of biosphere functions of forests, what is important when implementing activities on climate stabilization, as well as in the validation of the results of the simulations for assessing the carbon-depositing forest capacity.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 1; 218-224
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica
    Autorzy:
    Bomfleur, B.
    Krings, M.
    Taylor, E.
    Taylor, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/21746.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleontology
    macrofossil
    Triassic
    pleuromeialean lycophyte
    lycophyte
    Pleuromeia
    Mesenteriophyllum
    phytogeography
    paleoecology
    air chamber
    Transantarctic Mountains
    Antarctic
    Opis:
    Triassic microfloras from Antarctica contain abundant lycophyte spores. However, macrofossils of this group of plants are missing, and thus the precise affinities of the spore producers remain unknown. Macrofossil remains of a pleuromeialean lycophyte, including an incomplete strobilus, isolated sporophylls and sporangia, as well as abundant megaspores, occur on a single rock sample from the central Transantarctic Mountains. Also occurring on the same surface is Mesenteriophyllum serratum, a strap−shaped leaf morphotype of uncertain affinity previously known only from the Kyrgyz Republic and the Taimyr Peninsula. The leaves display alternating transverse ridges and depressions that are similar to structures seen in compressed leaves of various isoetalean lycophytes. Leaf morphology and anatomy, together with the close association of the other lycophyte remains, suggest that M. serratum represents a pleuromeialean lycophyte leaf, which was part of the same plant that produced the sporophylls and sporangia. Sedimentological data indicate that this lycophyte inhabited a swampy, probably coal−forming overbank environment, which contrasts with the assumed xeroto halophytic habit of many other pleuromeialean lycophytes.
    Źródło:
    Acta Palaeontologica Polonica; 2011, 56, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Remarks on Potamogeton hybrids based on characters of P. x salicifolius Wolfg. from a new locality in Poland
    Autorzy:
    Zalewska-Galosz, J
    Powiązania:
    https://bibliotekanauki.pl/articles/58334.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    variability
    ecology
    new locality
    plant taxonomy
    Patamogeton
    Polska
    Potamogeton x salicifolius
    hybrid
    distribution
    taxonomy
    phytogeography
    Opis:
    Information on Potamogeton hybrids, their identification, taxonomy, ecology and distribution has not been sufficiently recognised yet. Based on characters of P. x salicifolius (= P. perfoliatus x P. lucens) from a new locality in Poland - the Gatno lake (the Kaszuby Lakeland in NW Poland) - general comments on Potamogeton hybrids identification are introduced. The description of P. x salicifolius morphology from the Gatno lake are presented. Analysis of quantitative morphological characters of these specimens provided new information on variability of this taxon. The distribution map of P. x salicifolius in Poland, the original draft of P. x salicifolius based on specimens from the Gatno lake and the table with comparison of P. x salicifolius and the characters of parental species are also provided.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2003, 72, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The sinking of another Tristan da Cunha moss endemic and its phytogeographical consequences
    Autorzy:
    Ochyra, R.
    Plasek, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130713.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Afro-American disjuncts
    amphi-Atlantic distribution
    Bryophyta
    Musci
    phytogeography
    Atlantic Ocean
    southern cool-temperate zone
    taxonomy
    Opis:
    The original material of Isopterygium tristaniense Dixon, an endemic species of the Tristan da Cunha archipelago in the central South Atlantic Ocean, is taxonomically evaluated and some details of its morphology are illustrated. The species is found to be conspecific with the Holarctic Pseudotaxiphyllum elegans (Brid.) Z. Iwats. and this is the third record of the species in the Southern Hemisphere. The global distribution of this species is reviewed, and the distribution patterns of the South Atlantic mosses are briefly discussed.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2020, 89, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The occurrence of crowberry [Empetrum nigrum L., Empetraceae] in the Kuznik Lakes Channel [Northern Wielkopolska]
    Warunki wystepowania bazyny czarnej [Empetrum nigrum L., Empetraceae] w Rynnie Jezior Kuznickich [polnocna Wielkopolska]
    Autorzy:
    Owsianny, P.M.
    Gabka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/878454.pdf
    Data publikacji:
    2005
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    Empetraceae
    habitat
    Polska
    crowberry
    protection
    botany
    Kuznik Lakes Channel
    Empetrum nigrum
    occurrence
    Wielkopolska region
    Kuznik Nature Reserve
    phytogeography
    Źródło:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2005, 08
    1896-1908
    Pojawia się w:
    Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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