Rafał Krawczyk

ORCID: 0000-0002-9114-6827
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Research Areas
  • Botany and Plant Ecology Studies
  • Agriculture, Plant Science, Crop Management
  • Bryophyte Studies and Records
  • Integrated Water Resources Management
  • Peatlands and Wetlands Ecology
  • Lichen and fungal ecology
  • Agronomic Practices and Intercropping Systems
  • Agricultural economics and policies
  • Plant Ecology and Taxonomy Studies
  • Mediterranean and Iberian flora and fauna
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Plant Taxonomy and Phylogenetics
  • Phytochemistry and Biological Activities
  • Ecology and Vegetation Dynamics Studies
  • Flowering Plant Growth and Cultivation
  • Geological Formations and Processes Exploration
  • Potato Plant Research
  • Leech Biology and Applications
  • Phytochemical compounds biological activities
  • Language and Culture
  • Biochemical and Structural Characterization
  • Atmospheric chemistry and aerosols
  • Species Distribution and Climate Change
  • Plant Ecology and Soil Science
  • Weed Control and Herbicide Applications

Maria Curie-Skłodowska University
2012-2024

Institute of Plant Protection
1996-2013

The bearberry (Arctostaphylos uva-ursi L. Spreng.) is a source of herbal material-bearberry leaf (Uvae ursi folium), which highly valued and sought by pharmaceutical cosmetic industries. For many years, leaves this plant have been used in traditional medicine as diuretic, antimicrobial, anti-inflammatory agent for various diseases the urogenital tract. has also proposed natural antioxidant additive due to high contents phenolic compounds its leaves. study was focused on characterization...

10.3390/molecules26247692 article EN cc-by Molecules 2021-12-20

The aim of this study is to present the updated list rare and threatened vascular plant species in Lublin province. categories are presented according IUCN criteria. regional contains 408 (that makes up 25% Region flora); 56 which considered critically endangered, 81 represent endangered species, 51 belong category vulnerable 49 near respectively. presence 37 has not been confirmed therefore they listed as regionally extinct (RE). Of total number 134 rare, but because data about those...

10.17951/c.2016.71.1.7 article EN Annales Universitatis Mariae Curie-Sklodowska sectio C – Biologia 2017-04-03

The paper presents results of geobotanical and taxonomic studies on the distribution habitat requirements <em>Nymphaea candida</em> in southern Poland. researches were conducted Poland 2003-2009, provinces Lower Silesia, Lublin, Małopolska, Opole, Silesian province as well as, parts Mazowieckie Lubuskie. Flowers, leaves fruits <em>Nymphaea</em> species collected from 27 locations. Altogether pollens 73 populations <em>N. 18 alba</em> all researched area...

10.5586/asbp.2010.041 article EN cc-by Acta Societatis Botanicorum Poloniae 2011-01-01

Occurrence and breeding of Hirudo medicinalis were recorded in birds’ nests the fishing ponds water bodies used extensively by anglers south-eastern Poland, 4 11 studied bird species (Circus aeruginosus, Fulica atra, Cygnus olor, Chroicocephalus ridibundus). Factors important for distribution density this leech were: nest height, pH oxygen concentration inside nests, body-length nesting birds. Our data show that (1) H. chooses as habitats are safe rich predators (particularly fish) provide...

10.2478/s11756-014-0329-0 article EN cc-by-nc-nd Biologia 2014-02-17

Abstract Vegetation data (70 relevés) of ephemeral wetlands collected in both permanent and temporal water basins were analyzed. Numerical classification the revealed two distinct subsets, first comprised communities Eleocharition ovatae Philippi 1968 alliance, second combined dominated by Alisma lanceolatum, Isolepis supina or Elatine alsinastrum (Alisma lanceolatum group). Phytocoenoses widely distributed study area developed, most frequently, on exposed bottoms fishponds. This group could...

10.1515/biorc-2016-0007 article EN cc-by-nc-nd Biodiversity Research and Conservation 2016-06-01

Formalized classification of the class Isoëto-Nanojuncetea has not been performed in Poland. We used 69,562 relevés stored Polish Vegetation Database. Based on literature and expert knowledge we selected 63 diagnostic species for class. Unequivocal was applied this work according to Cocktail method. A set formal definitions established using a combination logical operators total cover case high-rank syntaxa while sociological groups particular were formulas describing class, alliances...

10.7717/peerj.11703 article EN cc-by PeerJ 2021-08-10

<em>Viola uliginosa</em> Besser is a European species mainly known from the Baltic Region. It endangered in significant part of its range. Research carried out southeastern Poland led to discovery numerous sites uliginosa</em>. Fourteen new localities this were found area Kotlina Sandomierska basin. This paper presents information concerning localization all sites, abundance at and habitats occupies. A discussion regarding status Polish flora given.

10.5586/asbp.2008.045 article EN cc-by Acta Societatis Botanicorum Poloniae 2011-01-01

The study area was a small lowland river valley (the Łęg river) located in the south-east of Poland. object investigation macrophytes 10 lakes with corresponding active channel stretches same length as cut-offs. aim to check difference species diversity between cut-off and channels. second test following hypothesis: vegetation lake has been shaped under influence contiguous stretch which left measurable mark abundance composition. To this, we checked whether channel’s flora is more similar...

10.2478/umcsbio-2013-0004 article EN cc-by Annales Universitatis Mariae Curie-Sklodowska sectio C – Biologia 2014-01-02

Abstract Spatial distribution and habitat preferences of 55 river corridor plant species were analyzed on a local scale in the valley medium-size regulated river. The analysis was based results detailed mapping 50 km-long section Lower San River (366 cartogram cells 1 square km). Selected divided into two groups: (1) strictly (2) loosely confined to corridors. plants found throughout (river channel, active historical floodplain, older terraces, slopes); however, their frequency diverse...

10.2478/biorc-2014-0007 article EN Biodiversity Research and Conservation 2014-06-01

The aim of the present study was to describe distribution xerothermic species vascular plants in lower San River valley and relationship between their density intensity selected environmental (natural anthropogenic) factors. Xerothermic occurred more frequently floor compared glacial terrace. Within valley, highest observed floodplain. examined also often on steep slopes at margins terraces, area occurrence aeolian sands. Moreover, a positive correlation has been found number polyhemeroby...

10.5586/aa.2012.048 article EN cc-by Acta Agrobotanica 2012-01-01

The use of diversified raw materials and various extractant types is justified because the varied chemical composition extracts obtained via extraction determines their biological activity. Therefore, objective this study was (i) to characterize profile two bearberry (70% ethanolic water) (ii) investigate activity analyzed through an assessment possible proapoptotic effects on glioma cell lines. HPLC-UV analysis individual compounds performed for determination phytochemical extracts, total...

10.3390/app14083418 article EN cc-by Applied Sciences 2024-04-18

Macrophytes and selected physical-chemical water properties were studied in 17 post-mining lakes of Jeziórko Sulphur Mine – one the largest borehole sulphur mines world. Artificial constructed subsidence depressions during reclamation process mining fields. They characterized by high mineralization conductivity ranged from 723 to 2295 μS/cm. The reaction was near neutral, or more frequently, slightly alkaline. Concentrations phosphorus organic matter low. In group hydrophytes, Ceratophyllum...

10.17951/c.2016.71.1.27 article EN Annales Universitatis Mariae Curie-Sklodowska sectio C – Biologia 2017-04-03

10.2478/v10067-011-0003-7 article EN Annales Universitatis Mariae Curie-Sklodowska sectio C – Biologia 2010-01-01

Military training areas, where ecosystems are shaped under a complex disturbance regime, recognized to be favourable pieces of land for maintaining high biological diversity. Our study focused on explosion craters – small-scale type severity, and their effect species diversity including vascular plants, bryophytes lichens. The research was carried out an active military area in Nowa Dęba (SE Poland). examined vegetation represented open communities nutrient-poor soils with wide range soil...

10.3161/15052249pje2019.67.3.003 article EN Polish Journal of Ecology 2019-12-09

Tolypella intricata is one of the rarest charophytes from genus that can be found both in Poland and Europe.Rarely last 200 years, it was recently rediscovered two localities eastern Lublin region.In this article, we present new locations T. make a significant contribution to closer understanding distribution biology ecology species.The article provides basic information on autecology together with associated macrophyte vegetation.The morphology data are compared literature, along critical...

10.15244/pjoes/152725 article EN Polish Journal of Environmental Studies 2022-12-05
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