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The body size is one of the main attributes of living organisms. The knowledge of body size patterns of co-occurring species and the related factors can contribute to the understanding of many ecological processes. The aim of the study was the analysis of the distribution of the spider species of different size in heterogeneous forest habitats: ground, herbaceous vegetation, tree trunks and leaves...
This work presents a list of localities for the following species: Anomodon attenuatus, A. viticulosus, Dicranum viride, Gymnomitrion alpinum, Hedwigia ciliata, Homalia trichomanoides, Lophoziopsis longidens, Obtusifolium obtusum, Odontoschisma elongatum, Orthodicranum tauricum, Porella platyphylla, and Syntrichia papillosa.
This work presents a list of localities for the following species: Barbilophozia barbata, Campylopus flexuosus, Conocephalum salebrosum, Didymodon spadiceus, Eucladium verticillatum, Frullania dilatata, Hamatocaulis vernicosus, Harpanthus flotovianus, Pohlia ludwigii, Riccardia latifrons, Scorpidium scorpioides, Sphagnum fuscum, and Tomentypnum nitens.
This work presents a list of localities for the following species: Anastrophyllum michauxii, Campylopus introflexus, Cephaloziella elachista, Cinclidotus fontinaloides, Cololejeunea calcarea, Dicranum viride, Didymodon spadiceus, Fissidens dubius var. mucronatus, Fossombronia wondraczekii, Fuscocephaloziopsis macrostachya, Hypnum cupressiforme var. subjulaceum, Lophozia ascendens, Mesoptychia heterocolpos,...
Research on ecophysiology of benthic bacteria indicates that microbiological processes which occur in bottom sediments have a major influence on the development of water bodies. Organic matter accumulated on the bottom makes lakes shallower and accelerates their aging. Microbiological processes are particularly important in small lakes, which are a common element of the environment. This article presents...
Ciliates constitute an important trophic link in aquatic environments, because they are essential food sources for zooplankton and fish. In this study, the spatial differences in abundance and composition of ciliate communities in relation to varying water salinity were investigated. The study was conducted in the large, brackish, eutrophic lakes Gardno and Łebsko. In the studied lakes, no significant...
This paper presents the distribution of Pedicularis sylvatica, an endangered species across the whole Poland. In order to illustrate its dynamics four time periods were taken into consideration: before 1900, 1901-1950, 1951-1990 and after 1990. Until the present, 599 localities of P. sylvatica, have been known, half of which, i.e. 276 were recorded during intensive studies on wetland habitats in the...
This paper presents new distribution stands for 70 species of lichenized town from Łomża town (Podlasie, NE Poland). The investigations in the area of Łomża were carried out in the years 2014–2015, on 34 research stands. Seven species have been put on the Red list of the lichens in Poland (Cieśliński et al. 2006), including Rhizocarpon lavatum in critically endangered – CR, Ramalina fastigiata, R...
New localities of Arnoseris minima (L.) Schweigger et Koerte (Asteraceae) in the Podlasie region (NE Poland) are presented. The current distribution of the species was established on the basis of the authors’ floristic field studies, revised herbarium materials, published data, and unpublished sources. The collected data enabled us to revise the map of the species’ distribution in the Podlasie region...
The paper reports new localities of lichens Parmelia ernstiae and P. serrana in Poland. Both species are reported for the first time from the Polish part of the Sudety Mountains (southwestern part of the country). The new localities were found in the area of the Sowie Mountains (central part of the Sudety Mts) as well as Śnieżnik Massif and Bialskie Mountains (eastern part of the Sudety Mts). Most...
A paper presents a list of 89 species found in Supraśl town (Podlasie, NE Poland). The investigations in the area of Supraśl were carried out in 2013–2014, on 41 research stands. Eighteen species are considered to be threatened in Poland. The lichens occur on all substrate types: soil, decaying wood, bark of all trees and shrubs species, boulders, concrete, foundation, mortar, plaster and bryophytes...
Species of the genus Orobanche (Orobanchaceae), parasitic on Centaurea in Central Europe, were previously considered to belong to the O. elatior group. At present, the taxon is differentiated into two species, O. elatior Sutton and O. kochii F.W. Schultz. The paper presents for the first time the distribution of O. elatior and O. kochii in Poland based on a critical revision of herbarium and the literature...
Seven species of Myxomycetes are reported from Poland for the first time. These are Arcyria virescens, Cribraria costata, C. elegans, C. languescens, C. mirabilis, C. pertenuis and Trichia flavicoma. They have very few localities in Europe and Cribraria pertenuis is known only from two sites worldwide. The species are described and illustrated with microphotographs, including first published micrographs...
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