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    Wyświetlanie 1-7 z 7
    Tytuł:
    Potamogeton pusillus agg. in Tajikistan (Middle Asia)
    Autorzy:
    Nobis, M.
    Nowak, A.
    Zalewska-Galosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/59299.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Potamogeton pusillus
    Potamogeton berchtoldii
    new species
    flora
    Tajikistan
    Middle Asia
    Asia
    Opis:
    The locality of Potamogeton berchtoldii Fieber, the new species to the flora of Tajikistan (Middle Asia), together with its ecological conditions are presented. Additionally, the list of herbarium specimens of P. pusillus L. s. stricto gathered in Tajikistan and few specimens of P. berchtoldii collected from the area of adjacent countries are also provided. Taxonomical position of the species within the Potamogeton pusillus aggregation, the main morphological features of both taxa and possibility of finding other localities are discussed.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2010, 79, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Do partly outdated palaeontological data produce just a noise? An assessment of the Middle Devonian-Mississippian biodiversity dynamics in central Asia on the basis of Soviet-time compilations
    Autorzy:
    Ruban, Dmitry A.
    Powiązania:
    https://bibliotekanauki.pl/articles/94488.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    palaeontological data
    palaeobiodiversity
    mass extinctions
    Middle Devonian
    Late Devonian
    Mississippian
    central Asia
    dane paleontologiczne
    masa wymarła
    środkowy dewon
    późny dewon
    missisip
    centralna Azja
    Opis:
    Interregional tracing of trends and events in the biotic evolution is an important task of modern palaeobiology. In Soviet times (1917-1991), numerous palaeontological data have collected for the territory of Russia and neighbouring U.S.S.R. countries. Later, these data were compiled and published in a series of reference volumes. Although this information cannot be updated in a conventional way, it remains valuable for quantitative analyses, particularly because of its comprehensive and unique character. Assessment of the previously collected data on the stratigraphic distribution of Middle Devonian-Mississippian marine invertebrates in three regions of central Asia (central Kazakhstan, Uzbekistan and Tajikistan) reveals some general patterns of biodiversity dynamics. The total number of genera generally declined during the Givetian-Famennian, whereas a remarkable diversity peak occurred in the Visean. This is consistent with the global pattern and, thus, permits to hypothesize a regional signature of the global trends. Changes in the extinction rate differ, however, between central Asia and the Earth in its entirety, which may be explained particularly by biases in either the regional or the global records. Evidence of the Givetian and Frasnian/Famennian mass extinctions is found in the three regions under study. Results of this tentative study indicate important directions for further research and suggest that central Asia is a highly important domain for studies of mid-Palaeozoic biodiversity dynamics.
    Źródło:
    Geologos; 2011, 17, 1; 29-47
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new basal eusauropod from the Middle Jurassic of Yunnan, China, and faunal compositions and transitions of Asian sauropodomorph dinosaurs
    Autorzy:
    Xing, L.
    Miyashita, T.
    Currie, P.J.
    You, H.
    Zhang, J.
    Dong, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/945600.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Dinosauria
    Sauropoda
    Eusauropoda
    Jurassic
    eusauropod
    paleontology
    Middle Jurassic
    Yunnan province
    China
    fauna composition
    transition
    Asia
    sauropodomorph dinosaur
    dinosaur
    Opis:
    Many sauropod ghost lineages cross the Middle Jurassic, indicating a time interval that requires increased sampling. A wide taxonomic spectrum of sauropodomorphs is known from the Middle Jurassic of China, but the braincase of a new sauropod, named here Nebulasaurus taito gen. et sp. nov., is distinct. Nebulasaurus is sister taxon to Spinophorosaurus from the Middle Jurassic of Africa and represents a clade of basal eusauropods previously unknown from Asia. The revised faunal list indicates dramatic transitions in sauropodomorph faunas from the Jurassic to Cretaceous of Asia; these are consistent with geographic isolation of Asia through the Late Jurassic. Non-sauropod sauropodomorphs, non-mamenchisaurid eusauropods (including basal macronarians), and mamenchisaurids successively replaced previous grades through the Jurassic, and titanosauriforms excluded all other sauropod lineages across the Jurassic–Cretaceous boundary.
    Źródło:
    Acta Palaeontologica Polonica; 2015, 60, 1; 145-154
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Middle Miocene bovids from Mae Moh Basin, Northern Thailand: The first record of the genus Eotragus from Southeast Asia
    Autorzy:
    Suraprasit, K.
    Chaimanee, Y.
    Chavasseau, O.
    Jaeger, J.-J.
    Powiązania:
    https://bibliotekanauki.pl/articles/945603.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Middle Miocene
    Miocene
    Mae Moh Basin
    Thailand
    first record
    Eotragus
    Mammalia
    Bovidae
    Asia
    Opis:
    We describe the first bovid fossils from the late middle Miocene (13.4–13.2 Ma) of the Mae Moh Basin of Northern Thailand, and assign the material to the new species Eotragus lampangensis sp. nov., Eotragus cf. lampangensis, and an indeterminate bovid. Our material represents the first report of Eotragus from Southeast Asia, thus greatly extending the geographic distribution of this genus across the Old World continents. While comparisons of the Southeast Asian specimens with abundant material of E. clavatus from Sansan (France) and E. aff. clavatus from Tarazona de Aragón (Spain) indicate a high degree of intraspecific variation within single species of Eotragus, the existence of two distinct taxa at Mae Moh remains a possibility. Based on previous carbon isotope studies of Mae Moh herbivore tooth enamel, Eotragus lampangensis sp. nov. foraged predominantly in an ecotone between grassland and forest.
    Źródło:
    Acta Palaeontologica Polonica; 2015, 60, 1; 67-78
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Central Asian köshks from the Islamic period before the Mongol conquest: fortified, semi-fortified or unfortified?
    Autorzy:
    Piekarz, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/1635181.pdf
    Data publikacji:
    2019-12-31
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    Central Asia
    Middle Ages
    köshks
    residences
    fortifications
    war technique
    Opis:
    In their external appearance, the Islamic-period köshks in Central Asia, especially the characteristic buildings with corrugated outer walls, dated broadly speaking from the 7th–8th century AD to the times of the Mongol conquest at the beginning of the 13th century, are apparently fortified. However, they lack a number of features characteristic of defensive buildings. Their interpretation as residential structures in this period is indisputed, hence their apparent defensiveness has been attributed to a line of evolution from pre-Islamic architecture of this type, which played a military role. A review of various defensive elements present in these structures, compared with buildings from an earlier period, highlights this process. An apparent exception is the Great Kyz Kala at Merv, Turkmenistan, which may have not lost its defensive capacity immediately, as recent research by the UCL Institute of Archaeology Ancient Merv Project has demonstrated.
    Źródło:
    Polish Archaeology in the Mediterranean; 2019, 28(2); 493-508
    1234-5415
    Pojawia się w:
    Polish Archaeology in the Mediterranean
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Syntaxonomy and ecology of thermophilous deciduous open woodlands and scrub vegetation in Tajikistan (Middle Asia)
    Autorzy:
    Nowak, A.
    Nobis, M.
    Nowak, S.
    Kotowski, M.
    Klichowska, E.
    Nobis, A.
    Swierszcz, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2130187.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Junipero-Pistacietea
    Middle Asia
    groves
    wild orchards
    Pistacion khinjuki-verae
    Irano-Turanian
    Region
    Opis:
    In this paper we present the first syntaxonomic classification for the thermophilous open wood and scrub vegetation in Tajikistan with some remarks on its environmental gradients. Altogether 143 relevés were sampled between 2014–2021 using the seven-degree cover-abundance scale of Braun-Blanquet. They were classified by the modified TWINSPAN method with the use of the four step interval scale with cutoff levels of 0%, 2%, 5% and 10% and total inertia as a measure of cluster heterogeneity. Diagnostic species were identified using the phi coefficient as a fidelity measure. Detrended Correspondence Analysis was used to determine the relation between samples, vegetation units and the major gradients in species composition. Plant communities have been divided into three main groups: (1) dry scrub on screes, (2) mesophilous scrubs in nemoral zone, and (3) open woods. A new class of Pistacietea khinjuki-verae has been proposed for open woods. Further classification of vegetation data resulted in the distinction of four plant communities within two provisional alliances: Roseion kokanicae and Ranunculo tenuilobi-Cotoneasterion hissaricae (communities of Rosa kokanica and R. ecae, associations of Aveno ludovicianae-Rhuidetum coriariae and Calophacetum grandiflorae). Additionally, we established the Pistacion verae alliance for the pistachio groves of Middle Asia with two subassociations: Pistacietum verae typicum and Pistacietum verae cercidetosum griffithii. The main factors determining the species composition of the studied communities are: elevation, temperature, precipitation, slope and aspect. Our research showed that the Pistacia groves are a distinct vegetation typical of the Irano-Turanian area and that further surveys are needed to present a final classification of scrub vegetation of Tajikistan.
    Źródło:
    Dendrobiology; 2022, 87; 47-68
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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