36 research outputs found

    Anthriscus cerefolium var. cerefolium (Apiaceae) in Lower Silesia – distribution and category of threat [in Polish with English summary]

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    <p>Anthriscus cerefolium origins from the eastern part of Mediterranean area and west part of central Asia. In Poland, it occurs in lowlands in the western part of the country, where it has been noted from 55 ATPOL 10x10 squares. In Lower Silesia, it was noticed on 18 locations in 13 ATPOL squares 10.x.10 km; in  majority before 1945 year. Only two localities have been observed after 1995, in anthropogenic habitats of the Kaczawskie Piedmont, and one locality in 1974 in Legnica City. There are no information about the status of the population and risk of extinction on these localities, moreover data on the distribution of the species in the region are insufficient. It means that in Lower Silesia Antriscus cerefolium should be categorized in category DD (data deficient).</p> <p> </p

    Main features of the sandstone flora and plant communities of the North-Western part of Sudetes Foreland

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    <p>The north-western part of Sudetes Foreland encompasses North-Sudetian Depression filled up with cenoman-santon sandstones. It forms the northernmost part of Cretaceous Basin which flora and geobotany has not been studied in last decades. The whole area was heavily transformed by intensive agriculture and forestry, so nowadays only small remnants of natural habitats have been preserved. The most valuable are: oak-hornbeam forest Galio sylvatici-Carpinetum betuli, which remains mainly in sandstone ravines; ash-elm riparian forest Ficario-Ulmetum minoris along river valleys and ash-alder alluvial forest Stellario nemorum-Alnetum glutinosae occurring along smaller streams. Other natural plant communities include chasmophytic communities on rocks cliffs and in cervices (Woodsio-Asplenietum septentrionalis and Hypno-Polypodietum) or forest springs Caricetum remotae. Almost all communities has a lowland character without small admixture of montane species. Rare and endangered plant taxa cover: forest species (Cephalanthera damasonium, Equisetum telmateia, Matteucia struthiopteris, Moneses uniflora, Orthilia secunda); bog species which could be found in secondary peat-bogs (Drosera rotundifolia, Equisetum variegatum, Juncus tenageia, Ledum palustre, Lycopodiella inundata); thermophilous taxa which are common in the whole area but mostly occuring on non-sandstone bedrock like basalt (Alyssum alyssoides, Stachys germanica, Viola rupestris); the outposts of montane species migrating along Bóbr river valley (Aconitum variegatum, Allium ursinum, Aruncus sylvestris, Cardaminopsis halleri, Carduus personata, Leucoium vernum ssp. vernum, Lunaria rediviva). Also a significant representation of the sub-Atlantic phytoelement (Aira caryophyllea, Blechnum spicant, Chrysosplenium oppositifolium, Corynephorus canescens, Juncus tenageia, Lonicera periclymenum, Spergula morisonii) was found on this area. But the most curious and interesting groups are pteridophytes with extinct locality of Asplenium adiantum-nigrum var. melanea and two present localities of Trichomanes speciosum gametophytes on the sandstone bedrock discovered in 2002, the new taxon for Polish flora.</p

    Der Ruprechtsfarn Gymnocarpium robertianum (Hoffm.) Newmann in den Sudeten und ihren Vorbergen [in Polish with German and Czech summary]

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    <p>Nach der Entdeckung eines neuen natürlichen Vorkommens des Ruprechtsfarns im Warthaer Gebirge (Góry Bardzkie) wurde eine Sichtung des Verhaltensstandes der Artenpopulationen vorgenommen, die bisher in Niederschlesien nachgewiesen worden waren. Dies erfolgte mit besonderer Berücksichtigung der Gliederung in felsige Standorte (natürliche oder halbnatürliche in stillgelegten Steinbrüchen) und in synantrope. Eine Prüfung der aktuellen Standorte des Ruprechtfarns hat ergeben, dass der Gefährdungsgrad für diese Art viel höher ist, als bisher angenommen. Gegenwärtig ist der Ruprechtsfarn in den Sudeten nur in einem Gebiet von weniger als 20 km2 verbreitet. Nach dem Jahre 2000 wurden nur 6 aktuelle natürliche Standorte dieser Art gefunden. Der Ruprechtsfarn sollte also in die Gruppe der in Niederschlesien vom Aussterben bedrohten Arten aufgenommen werden (Kat. VU). Das neue Vorkommen des Ruprechtsfarns befindet sich etwa 60 km von den bisher bekannten natürlichen Standorten der Art im Bober-Katzbach-Gebirge (Góry Kaczawskie) entfernt<br>– auf einem Kohlenkalk-Aufschluss nördlich von Herzogswalde (Żdanów).</p> <p> </p

    Chamomilla recutita (Asteraceae) in Lower Silesia – current distribution and category of threat [in Polish with English summary]

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    <p>Chamomilla recutita (Asteraceae) origins from the Mediterranean area and Central Asia. In Poland,<br>it occurs in uplands in most part of the country. In Lower Silesia, it was noticed on more than 730 locations in 202 ATPOL squares 10.x.10 km; both before and after the World War II. It is one of the widely distributed archaeophyte in the investigated region.<br>It grew in many types of habitats of anthropogenic<br>origin, especially on fields, near roads and on abandoned areas, sometimes in huge populations.<br>Chamomilla recutita is not threatened in this moment. It may be however endangered in the<br>future, due to changes in agricultural activity – NT.</p> <p> </p

    Podstawowe typy siedlisk nadrzecznych Polski i ich związek z wezbraniami wód. [In:] Wizyta studyjna w Niemczech "Przyjazne środowisku metody ochrony przed powodzią wraz z przykładami renaturyzacji rzek. Kraków/Nowe Brzesko 9-10 maja 2004.

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    <p>Popular paper in Polish, about importat feature of riverive, regularly flooded habitats.</p> <p> </p> <p>Cite this:</p> <p>Świerkosz K. 2004. Podstawowe typy siedlisk nadrzecznych Polski i ich związek z wezbraniami wód. [In:] Wizyta studyjna w Niemczech "Przyjazne środowisku metody ochrony przed powodzią wraz z przykładami renaturyzacji rzek. Kraków/Nowe Brzesko 9-10 maja 2004. pp. 3-6. DOI [number]</p

    Occurrence and diagnostic value of the Polypodium vulgare L. complex in the communities of Asplenietea trichomanis (Br.–Bl. in Meier & Br.–Bl. 1934) Oberd. 1977 class in Polish Sudety Mts and their foreland

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    <p>In 2009-2011, 298 relevés of plant rocky communities of Asplenietea trichomanis class were collected in the Sudety Mts and their foreland. Polypodium vulgare occurred in 93 relevés, i.e. in about one third of collected material, however the distribution and abundance of the species were not equal in all syntaxonomical units. The species was found in 56% of relevés representing Hypno-Polypodion vulgaris alliance, in 26% of relevés of Asplenion septentrionalis alliance, in the same<br>percentage in Asplenion cuneifolii phytocoenoses, and in less than 10% of all the relevés made on calcareous substrata. Thus, P. vulgare should be considered as a character species of the Androsacetalia vandelii order rather than the Asplenietea trichomanis class as a whole. It is especially abundant in phytocoenoses belonging to the Hypno-Polypodion vulgaris alliance and dominating in Hypno-Polypodietum associations, in which it reaches the highest coverage (10% up to 80%). The results indicate that the most important factors which determine the occurrence of P. vulgare in rocky communities are the type of the geological substrate (non-calcareous rocks) and shade, generally exceeding 60%. Occurrence of Polypodium ×mantoniae has been confirmed so far in the phytocoenoses belonging to the association Asplenio-Polypodietum and Asplenietum cuneifolii. It may occur in ass. Woodsio-Asplenietum septentrionalis as well</p> <p> </p

    Notes on the syntaxonomy of the Asplenietea trichomanis class in Poland

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    <p>A revised syntaxonomy of rocky and wall plant communities occurring and likely to be found in Poland is presented in the paper. Currently eleven associations and three communities are known from the whole area of the country, and four further associations probably occur here. A revised division of the class Asplenietea trichomanis (Br.-Bl. in Meier & Br.-Bl. 1934) Oberd. 1977 into three orders with six alliances is also given.</p

    General characteristics of the vascular flota and geobotanical division of the Góry Stołowe Mts, Sudety Mts. (Poland). Hartel H., Cilek V., Hebren T. A. Jackson & R. Williams (eds.) Sandstone Landscapes

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    <p>The relatively small area of the Góry Stołowe Mts (about 180 sq. km) is highly differentiated, both geologically and climatically. This abiotic differentiation creates many kinds of habitats, available for various ecological groups of plants, which occur in the same type of area. Detailed analysis of the distribution of plants reveals an interesting pattern and provides grounds for a division of the whole range into smaller geobotanical units. Based on the collected data on the distribution of particular species and groups of vascular plants, the borders of the vegetation layers in the Góry Stołowe Mts range established. Indications are provided by the vertical distribution of species which are locally submontane (not exceeding the altitude of 650 m a.s.l.) and ones locally montane (not descending lower than 600 m a.s.l.) in character. The geobotanical division described here is based on differences found in the distribution of vascular plant taxa having a clearly definable type of distribution range. Based on an analysis of horizontal distribution of vascular plants in the Góry Stołowe Mts, six smaller geobotanical units have been distinguished, which are characterised by specific floristic features. The diversity of the units distinguished can be accounted for by their location, geological structure and management level.</p

    Remarks on the main forest and shrub communities of the Langtang Khela Valley (Langtang Range, Central Himalayas, Nepal)

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    <p>During the observations carried out in the Langtang Khela Valley (Langtang National Park) six mains, easy to recognise, plant communities were recorded. Their distribution depends mainly on two most important factors – altitude and the level of anthropopressure.</p> <p>There are three natural forest communities in the Langtang Khela Valley: the moist temperate laurel-oak forest (Litsea-Quercus leucotrichophora community – 1800-2600 m a.s.l., in the deep valley of the Langtang Khela), dry mixed temperate forest (Pinus-Rhododendron arboreum community – 1800-ca 3000 m a.s.l., on dry rocky slopes) and moist mixed coniferous forest (Tsuga dumosa-Quercus semecarpifolia community – 2400-3400 m a.s.l., in the upper part of the valley).</p> <p>The two kinds of shrub communities (temperate Elscholtzia-Colquohinia coccinea and subalpine Rhododendron-Cotoneaster affinis community) and subalpine meadows up to 3600 m probably have anthropogenic origin.</p
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