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    Wyświetlanie 1-5 z 5
    Tytuł:
    Taxonomic differentiation of Salix retusa agg. (Salicaceae) based on leaf characteristics
    Autorzy:
    Kosiński, Piotr
    Adreas Hilpold, Adam Boratyński
    Powiązania:
    https://bibliotekanauki.pl/articles/957076.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    oreophytes
    alpine plants
    biometrics
    morphology
    systematics
    Opis:
    The complex of Salix retusa includes S. retusa s.s., S serpyllifolia and S. kitaibeliana, small, prostrate willows occurring in the subalpine and alpine vegetation belts of the mountains of Central Europe: the Pyrenees, Alps, Apennines, Dynaric Alps, Carpathians and Rila. The systematic positions of these taxa are not fully resolved and are still disputed. The aim of the present study was to biometrically verify differences in leaf characteristics between these taxa. Material was collected from 47 populations, each represented by 25–52 individuals (33 on average). The study was based on 14 leaf morphological characters measured from scans using Win Folia software. The principal component analysis (PCA), Ward’s agglomeration method, the K-means cluster analysis (K-MCA) and Kruskal-Wallis tests were applied to verify the relationships between taxa and their populations. Differences between average leaf characteristics of S. retusa s.s., S. serpyllifolia and S. kitaibeliana were detected. The Pyrenean populations of S. retusa s.s. appeared more similar to S. serpyllifolia. Within the Alpine populations of S. serpyllifolia, several individuals resembling S. retusa s.s. were detected, and vice versa, within populations of S. retusa s.s., and there were also individuals similar to S. serpyllifolia. The controversial S. kitaibeliana was found to be typical of the Tatra Mountains. The results support close taxonomic relations, but also the separate status of S. retusa, S. serpyllifolia and S. kitaibeliana. The differences between them are mainly of a quantitative nature.
    Źródło:
    Dendrobiology; 2017, 78; 40-50
    1641-1307
    Pojawia się w:
    Dendrobiology
    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:
    Jałowiec pospolity (Juniperus communis) z Nepli nad Bugiem
    Common juniper (Juniperus communis) from Neple on the Bug River
    Autorzy:
    Borkowski, Krzysztof
    Boratyński, Adam
    Boratyńska, Krystyna
    Powiązania:
    https://bibliotekanauki.pl/articles/1186068.pdf
    Data publikacji:
    2020-02-19
    Wydawca:
    Polskie Towarzystwo Dendrologiczne
    Tematy:
    dendrology
    monumental trees
    photographic documentation
    Lublin province
    Kórnik Arboretum
    Opis:
    Juniperus communis (common juniper) is a shrub or small tree. Tree-like junipers are rare but important landscape elements. Even the largest junipers are rarely older than 100–120 years old. We would like to show some data on probably the oldest and by far the largest common juniper in Poland, blown down in 1957. It grew in village of Neple, in the park of the Bug and Krzna rivers (52.126°N, 23.517°E). Its age was estimated at c. 300 years, and it attained more than 10 m in height and c. 3 m circumference at 1.3 m above ground level. It was found that the basal part of the trunk was rotten inside, which makes it impossible to determine its exact age. The trunk with its main boughs was transported to the Kórnik Arboretum, conserved and preserved in the form of a monument until today. To our best knowledge, it was the largest common juniper in Poland and the second largest in Europe.
    Źródło:
    Rocznik Polskiego Towarzystwa Dendrologicznego; 2019, 67; 25-38
    2080-4164
    2300-8326
    Pojawia się w:
    Rocznik Polskiego Towarzystwa Dendrologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Oliwka europejska (Olea europaea) – najdłużej żyjący organizm w śródziemnomorskiej Europie
    European olive (Olea europaea) – the longest living organism in Mediterranean Europe
    Autorzy:
    Boratyński, Adam
    Boratyńska, Krystyna
    Borkowski, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/1196168.pdf
    Data publikacji:
    2021-04-27
    Wydawca:
    Polskie Towarzystwo Dendrologiczne
    Tematy:
    olive trees
    monumental trees
    Mediterranean basin
    Opis:
    Olea europaea is the most emblematic tree of the Mediterranean region. It has been cultivated for about 6000 years for its fruit, oil, wood, and for medicinal and cultural purposes. The research data concerns the monumental olive trees in the region. The oldest and biggest known trees are in Lebanon, Israel, Greece, Albania and Italy. The oldest of those, ‘Sisters of Noahʼ (Lebanon) are believed to be 5000–6000 years old. The most numerous groups of monumental olives were reported from Apulia in Italy and Albania. The oldest and biggest olive trees could be remnants of ancient plantations from the Hellenic and Roman times, but this hypothesis should be confirmed in a detailed study.
    Źródło:
    Rocznik Polskiego Towarzystwa Dendrologicznego; 2020, 68; 11-33
    2080-4164
    2300-8326
    Pojawia się w:
    Rocznik Polskiego Towarzystwa Dendrologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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