The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper presents 14 historical records of European-temperate Erigeron acris subsp. serotinus for Ukraine using herbarium voucher specimens deposited in two Polish herbaria KRA and KRAM. This neglected native taxon is probably frequent in western Ukraine, but its populations need to be refind.
The paper presents a list of 94 species of lichens found in central part of the Landscape Park “Podlasie Bug Water Gap”. Among them, 16 species are endangered in Poland. The most valuable components biota of lichen belong to endangered species nationally. They are: Melanelixia subargentifera, Pleurosticta acetabulum, Ramalina fraxinea, Usnea filipendula and others.
Cotoneaster lucidus Schltdl., a potentially invasive alien plant in Poland, is reported from the town of Augustów for the first time (the ATPOL square: FB39). This is the second record of the species occurrence in north-eastern Poland. A new spontaneous population consists of 36 individual shrubs (groups of stems) dispersed on an area of about 0.2 ha, except one dense clump occupying an area of about...
Ostericum palustre Besser is a species protected by the domestic and EU laws. In Poland it occurs in about 150 sites one of which is located in the area covered by Natura 2000 “Lisi Kąt”. The population existing there, estimated as 35,000 individuals, covers the acreage of 342 ha. The species persists there mostly in over-dried and transformed-by-meadow-management reed beds with the share of Carex...
Studies were conducted in 50 villages of mediaeval origin in NW Poland. In eight of them were found patches of two Malvion neglectae associations: Matricarietum discoideo-recutitae and Matricario-Anthemidetum cotulae. The documentation comprising 19 phytosociological relevés was made according to the Braun-Blanquet approach in the years 2011–2013. Only one relevé dates from 2006 and was made in N...
The aim of this study was to characterise the flora and plant communities in the Moryńskie Hills, Poland. A total of 45 transects and 23 phytosociological relevés were established. Plant communities were identified based on the description of the test patch of the vegetation cover. The paper presents floristic analyses of vascular plants, which includes the taxonomic affiliation of species, their...
Geobotanical studies conducted in spring in 2011–2012 in the Zagórów polder washland, covered by the ecological restoration programme, provided assessment of current nature value of plant communities and indicated potential directions of their further transformations as a result of changes in habitat water content levels. Based on the analyses of 77 relevés of 50–100 m2 each, prepared following the...
The research was conducted in meadow communities with Cirsium canum in the Wielopolka River valley in the Strzyżów Foothills in 2012–2013. The common phytosociological Braun-Blanquet method was applied and 20 phytosociological relevés were taken in each of the managed and abandoned patches. The aim of the study was to investigate the distribution of the species and identify the floristic composition...
The paper contains a phytosociological description and evaluation of alluvial meadows of Cnidion dubii Bal.-Tul. 1966 at the Natura 2000 site “Łęgi Odrzańskie”, the middle Oder river valley, presented in relation to local water conditions and grassland management. Phytosociological data of the C. dubii alliance from Poland and the Czech Republic have also been presented.
River valleys are areas of transition between aquatic and terrestrial communities, with complex biological structure. As ecotones they have high biodiversity as a result of the occurrence of species with different requirements according to soil moisture. They create ecological corridors, allowing migration of the organisms in human disturbed landscape. With these migration routes, species of foreign...
The paper presents results of the studies conducted to determine causes and directions of transformations in vegetation of meadow-pasture communities in the area of the Wielki Łęg Obrzański [Great Obra Floodmeadows]. Multifaceted natural and habitat analyses were conducted on over 1800 relevés prepared in the vegetation seasons of 2005–2009 according to Braun-Blanquet. On their basis the phytosociological...
The paper presents the results of the research on Bryoria capillaris (Ach.) Brodo & D. Hawksw. in the Polish part of the Białowieża Forest. Two new sites of this species have been found in the managed Białowieża Forest, in Władysław Szafer Reserve. Bryoria capillaris grows on the bark and small branches of Quercus robur and Picea abies.
Communities of hay meadows with Arrhenatherum elatius form phytocenoses of at least two plant communities: Arrhenatheretum elatioris – semi-natural habitats, and Tanaceto-Arrhenatheretum elatioris – ruderal habitats. The communities of tall oat-grass include approximately 150 species of vascular plants. In central Poland Tanaceto-Arrhenatheretum is the main habitat for many species characteristic...
A comparative morphological and anatomical study on the petioles and lamina of 22 taxa (species, subspecies and cultivars) of the genus Philodendron (subgenera Meconostigma, Pteromischum and Philodendron) has been made in order to investigate interspecific differences which may be useful in species identification. All species have bifacial leaves with petioles, amphistomatic with a strongly reduced...
Swamp-originating meadows constituting indirect habitats between living peatlands and classical grasslands may be difficult to evaluate. An indiscriminate application of the Oświt (2000) method for their valorization does not fully reflect their value, because of flora which is different from flora found in living peatlands (in particular, the invasion of less hygrophilous flora). Based on the research...
Nearly 200 hectares of grasslands in “Majątek Rogalin” (the Rogalin Estate) are situated on the Warta River floodplain, about 17 miles south of Poznań. Six positions of protected species have been found here. There are 10 regionally endangered species, while in the whole country – eight. Eighty-three plant communities belonging to 15 classes in phyto-sociological terms have been identified. Due to...
Strong and long-lasting human activity in most European lowland river valleys results in narrowing the area of inudated ecosystems from wide floodplains to the space between embankments. This concerns especially regulation and drainage works, as well as hydrotechnical infrastructure construciton. The Warta Mouth National Park is a suitable region for inudated habitats research – over 5000 hectars...
The paper characterises a new locality of Melampyrum cristatum identified in Dębno upon Warta (Wielkopolska region, Poland). Its ecological conditions are presented, along with the size of the population, phytosociological affiliation, as well as a characteristics of the species focusing on new traits of seed sculpture.
This study was undertaken to monitor the course of a secondary succession of phytoplankton in temporary water bodies, based on a man-made periodically drained pond. Results of phycological analyses showed, that small Chlorophyceae from the order Chlorococcales predominated qualitatively throughout the study period. Chlorophyceae, e.g. stress-resistant Haematococcus pluvialis, developed best as the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.