scholarly journals Diversity and Structure of Pelagic Zooplankton (Crustacea, Rotifera) in NE Poland

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 456
Author(s):  
Maciej Karpowicz ◽  
Jolanta Ejsmont-Karabin
Keyword(s):  
Ecological Status ◽  
Glacial Refugia ◽  
Bythotrephes Longimanus ◽  
Deep Lakes ◽  
Trophic Conditions ◽  
Cold Adapted ◽  
Ne Poland ◽  
North Eastern ◽  
Littoral Zones ◽  
Glacial Relicts

This study presents the diversity and structure of pelagic zooplankton in north-eastern Poland. The research was conducted in 47 lakes with different trophic conditions in the middle of summer. Samples were collected close to the deepest part of the lakes to avoid the diverse benthic and littoral zones. We found 119 zooplankton species of which 32 were Cladocera, 16 were Cyclopoida, 4 were Calanoida, and 67 were Rotifera. We determined which species occurred most frequently in the region, as well as the species that were characteristic of different trophic conditions. We also recorded the presence of eight cold-adapted species which some of them are considered as glacial relicts (e.g., Eurytemora lacustris, Heterocope appendiculata, Cyclops lacustris). Our research revealed potential glacial refugia for planktonic species in 14 lakes of NE Poland. Our study suggests that the presence of stenotherm species may be an excellent indicator of the ecological status of deep lakes and could be considered in lake monitoring programs. Furthermore, we did not find Bythotrephes longimanus which has been reported from Poland. Instead, we found that B. brevimanus was the most common representative of the genus in the study area.

scholarly journals The Effect of Autumn Foliar Fertilization on the Yield and Quality of Winter Oilseed Rape Seeds

Agronomy ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 849 ◽  
Author(s):  
Krzysztof Józef Jankowski ◽  
Mateusz Sokólski ◽  
Artur Szatkowski
Keyword(s):  
Oilseed Rape ◽  
Fat Content ◽  
Neutral Detergent Fiber ◽  
Total Protein Content ◽  
Winter Oilseed Rape ◽  
Ne Poland ◽  
Yield And Quality ◽  
Chemische Industrie ◽  
North Eastern ◽  
Feed Value

This paper presents the results of a 3-year field experiment conducted in north-eastern (NE) Poland to determine the influence of the autumn application of foliar macronutrient and micronutrient fertilizers (control, one application in BBCH (Biologische Bundesanstalt, Bundessortenamt and Chemische Industrie) stage 16 (six leaves unfolded)), two applications in BBCH stages 14 (four leaves unfolded), and 16 (six leaves unfolded) on the growth and development of winter oilseed rape plants, nutrient accumulation, overwintering success, yield components, yield, nutritional value (crude fat content, fatty acid concentrations), and feed value (total protein content, concentrations of acid detergent fiber and neutral detergent fiber, quantitative and qualitative composition of glucosinolates) of seeds. When applied in BBCH stages 14 and 16, foliar fertilizers stimulated the development of leaf rosettes, increased the accumulation of minerals in aerial rosette parts (N, K, and Mg) and roots (K, Cu, Mn, and Fe), and contributed to the overwintering success of winter oilseed rape plants (by 8–11%). The application of foliar macronutrient and micronutrient fertilizers in autumn increased seed yield (by 0.25 Mg ha−1), contributed to a significant increase in the crude fat content of seeds (by 1.3–7.4 g kg−1 dry matter (DM), increased the content of oleic acid, decreased the concentration of linoleic acid, and increased the content of glucosinolates, mostly the alkenyl fraction with antinutritional properties.

Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)

Zootaxa ◽  
2012 ◽  
Vol 3162 (1) ◽  
pp. 39 ◽  
Author(s):  
ANDRE V. BOCHKOV ◽  
ANNA LABRZYCKA ◽  
MACIEJ SKORACKI ◽  
ALEXANDER P. SAVELJEV
Keyword(s):  
Geographical Distribution ◽  
Castor Fiber ◽  
Ne Poland ◽  
Eurasian Beaver ◽  
Fish Traps ◽  
North Eastern

Twenty species of the genus Schizocarpus Trouessart, 1896 (Acari: Chirodiscidae) are recorded from six live individuals of the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) captured by modified fish-traps near Wiżajny village (Suwałki, north-eastern Poland). Eight species are described as new: Schizocarpus heatherae sp. nov., S. faini sp. nov., S. klompeni sp. nov., S. parahumilis sp. nov., S. gozdziewskii sp. nov., S. pseudonumerosus sp. nov., S. zurowskii sp. nov., and S. testiculatus sp. nov. Twelve previously described species are as follows: S. brachyurus (Dubinina, 1964), S. capitis (Dubinina, 1964), S. curtus Fain and Lukoschus, 1985, S. fedjushini (Dubinina, 1964), S. insignis Fain and Lukoschus, 1985, S. intercalatus Fain and Lukoschus, 1985, S. numerosus (Dubinina, 1964), S. parvus (Dubinina, 1964), S. pygidialis Fain and Lukoschus, 1985, S. radiatus Fain and Lukoschus, 1985, S. subhexapilis Fain and Lukoschus, 1985, and S. subparvus (Dubinina, 1964). Data on geographical distribution and microhabitats of Schizocarpus spp. detected on C. f. belorussicus in the Suwałki population are summarized in table format.

scholarly journals Białowieża Forest (Ne-Poland) and Valday Np ( Nw-Russia) – Biogeographical Characteristics of Eutrophic Deciduous Forests

2014 ◽  
Vol 33 (3) ◽  
pp. 111-122 ◽  
Author(s):  
Jan Marek Matuszkiewicz ◽  
Elena Bielonowska ◽  
Anna Kowalska ◽  
Nadjeżda Cariewska ◽  
Jarosław Baranowski ◽  
...  
Keyword(s):  
National Park ◽  
Deciduous Forest ◽  
Deciduous Forests ◽  
Anthropogenic Pressure ◽  
The Past ◽  
The North ◽  
Ne Poland ◽  
North Eastern ◽  
Białowieża National Park ◽  
Eastern Border

Abstract During geobotanical studies in the north-eastern border of hemi-boreal zone, in Valday (NW Russia), rare eutrophic deciduous forests dominated by oak Quercus robur were observed. A comparison of these forests with the model of European deciduous forest in Białowieża National Park (NE-Poland) indicates a great similarity. Therefore, eutrophic deciduous forests in Valday can be classified to the Querco-Fagetea class, the Fagetalia sylvaticae order and to the Capinion betuli alliance, despite the absence of hornbeam Carpinus betulus in the region. Rarity of eutrophic deciduous forests in Valday region results probably from strong anthropogenic pressure in the past.

Gross primary production and respiration differences among littoral and pelagic habitats in northern Wisconsin lakes

2006 ◽  
Vol 63 (5) ◽  
pp. 1130-1141 ◽  
Author(s):  
George H Lauster ◽  
Paul C Hanson ◽  
Timothy K Kratz
Keyword(s):  
Primary Production ◽  
Surface Waters ◽  
Gross Primary Production ◽  
Free Water ◽  
Lake Metabolism ◽  
Trophic Conditions ◽  
Littoral Zones ◽  
Ecosystem Production ◽  
Littoral Area ◽  
Littoral Habitats

Net ecosystem production (NEP) trends among lakes have been ascribed to differences in nutrient and allochthonous carbon inputs, but little is known on how different habitats within lakes contribute to these trends. We sampled pelagic and littoral surface waters using sonde (i.e., free-water) and bottle methods concurrently in lakes spanning a range of trophic conditions. We considered whether the typically higher metabolism estimates found with sonde methods are due to contributions from littoral habitats not reflected by bottle estimates. We sought the source of littoral contributions by selecting sites with maximum differences in macrophyte abundance. Sonde estimates for pelagic primary production and respiration were two–three times greater than bottle estimates. Sonde/bottle ratios were higher in productive lakes and lakes with more littoral area. Bottle estimates were similar among all sites, and sonde estimates in macrophyte-poor sites were similar to pelagic sondes. However, sonde estimates in macrophyte-rich areas were four–nine times greater than bottle estimates. Results suggest littoral zones increase whole-lake NEP in eutrophic systems, whereas the Sphagnum mat surrounding dystrophic lakes decreases NEP. Non-planktonic organisms associated with macrophytes provide important littoral contributions to whole-lake metabolism and to understanding NEP trends among lakes.

scholarly journals The oldest pottery of the Para-Neolithic Zedmar culture at the site Szczepanki, Masuria, NE-Poland

2020 ◽  
Vol 47 ◽  
pp. 126-154
Author(s):  
Witold Gumiński
Keyword(s):  
Baltic Region ◽  
The South ◽  
Ne Poland ◽  
North Eastern

The article presents the earliest ceramics of the site Szczepanki, north-eastern Poland, belonging to the Para-Neolithic Zedmar culture, which existed in the south-east Baltic region. The presented pottery come from the Late Atlantic layers, dated 5600–5100 conv BP. The pottery is discussed regarding the technology, morphological details, vessel forms and ornamentation. Each of the elements shows multidirectional influences or similarities with the Western and the Eastern Para-Neolithic, as well as the Danubian cultures and the TRB. However, a specific characteristic of the early Zedmar pottery relies on mixing features of various origins or traditions, creating a new and peculiar technology and style.

scholarly journals A Touristic Concept of Land Management of Zaklików’s Reservoir Based on its Natural Values (South-Eastern Poland)

2016 ◽  
Vol 18 (2) ◽  
pp. 81-98
Author(s):  
Joanna Sender ◽  
Weronika Maślanko ◽  
Milena Kuk
Keyword(s):  
Local Development ◽  
Ecological Status ◽  
Water Reservoir ◽  
Social Needs ◽  
Chemical Parameters ◽  
Nature Protection ◽  
The North ◽  
North Eastern ◽  
Physical And Chemical Parameters ◽  
Physical And Chemical

Abstract The aim of the study was to determine actions towards enrichment of natural aspects of the water reservoir in Zaklików, with consideration of nature protection and social needs. For this purpose, physical and chemical parameters of the reservoir, floristic and physiognomic characteristics of the area, cartographic analysis of land use, natural and touristic valorisation, and the concept of tourism development of the area were considered. The reservoir, based on the ESMI index, rated as moderate ecological status. The highest natural and tourist values, as well as the highest intensity of conflict between them, were located in the north-eastern and central part of the study area. Based on all analyzes, a concept of development of the study area was created, consistent with the local development plan.

scholarly journals Algoflora of lakes in the Kurgal’sky Nature reserve (Leningrad region)

2021 ◽  
pp. 335-347
Author(s):  
E. V. Stanislavskaya ◽  
A. L. Afanas’eva ◽  
O. A. Pavlova
Keyword(s):  
Chlorophyll A ◽  
Green Algae ◽  
Brackish Water ◽  
Phytoplankton Biomass ◽  
Nature Reserve ◽  
Ecological Status ◽  
Similarity Index ◽  
Leningrad Region ◽  
Algal Flora ◽  
Trophic Conditions

Various algocenosises in the brackish Lake Lipovskoe and ultra-oligotrophic Lake Beloe located in the Kurgal’sky Nature reserve were studied in May and July of 2019. In the algal flora of the lakes studied, we found 291 taxa belonging to 9 orders. The both lakes were characterized by high species richness, namely: 179 and 181 algae taxa were identified in the Lake Lipovskoe and Lake Beloe, respectively. In the Lake Lipovskoe, its phytoplankton was dominated by Cyanophyta, Cryptophyta and Dinophyta, among which brackish-water and marine species were presented. In the periphyton of this Lake, brackish-water diatoms and green algae were the most abundant. In the Lake Beloe, its phytoplankton was dominated by Dinophyta, Bacillariophyta and Chlorophyta; the blue-greens, diatoms and green algae dominated in the periphyton of Lake Beloe. Despite that the lakes are located close to each other, their algal flora is quite different: the Sorensen similarity index between the two lakes was 38% only. The phytoplankton biomass in both lakes was low, increasing from spring to summer. In the Lake Lipovskoe, the phytoplankton biomass varied from 0.45 to 1.9 mg/L, chlorophyll a fluctuated from 3.9 to 7.1 µg/L. In the Lake Beloe, the phytoplankton biomass varied from 0.3 to 1.4 mg/L, chlorophyll a fluctuated from 0.45 to 1.3 µg/L. The periphyton biomass was 20 g/m2  (chlorophyll a being 22 mg/m2 ) and 17 g/m2 (chlorophyll a being 17 mg/m2 ) in the Lake Lipovskoe and Lake Beloe, respectively. Nowadays, the ecological status of both lakes can be considered satisfactory, because based on trophic conditions and species compositions they belong to waterbodies of clean and satisfactory clean conditions (II–III classes of water quality). To preserve the unique flora of the lakes in the Kurgal’sky Nature reserve, nature-protected measures should be strengthened.

scholarly journals Multispecies reservoir of Spirometra erinaceieuropaei (Cestoda: Diphyllobothridae) in carnivore communities in north-eastern Poland

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Eliza Kondzior ◽  
Rafał Kowalczyk ◽  
Małgorzata Tokarska ◽  
Tomasz Borowik ◽  
Andrzej Zalewski ◽  
...  
Keyword(s):  
Hot Spot ◽  
Subcutaneous Tissue ◽  
Infection Intensity ◽  
Complex Life Cycle ◽  
Rrna Gene ◽  
Mammal Species ◽  
Primeval Forest ◽  
Ne Poland ◽  
North Eastern ◽  
Białowieża Primeval Forest

Abstract Background Spirometra erinaceieuropaei is a diphylobothriid tapeworm with a complex life-cycle including definitive, intermediate and paratenic (transport) hosts. Multiple routes of parasite transmission often make it impossible to determine what type of host a specific infected animal is considered to be. Spargana larvae cause sparganosis, a severe food- and water-borne disease mainly found in Asia. In Poland, Spirometra sp. was reported in large carnivores in Białowieża Primeval Forest for the first time in the 1940s and was recently confirmed as S. erinaceieuropaei in several mammals and snakes using molecular methods. Methods In total, 583 carcasses of 9 carnivore species were necropsied between 2013 and 2019 in north-eastern (NE) Poland. The larvae of S. erinaceieuropaei (spargana) were isolated from subcutaneous tissue, counted, and preserved for genetic analyses. We calculated the prevalence and intensity of infection. To assess spatial variation in S. erinaceieuropaei infection probability in NE Poland, we applied a generalized additive model (GAM) with binomial error distribution. To confirm the species affiliation of isolated larvae, we amplified a partial fragment of the 18S rRNA gene (240 bp in length). Results Spirometra larvae were found in the subcutaneous tissue of 172 animals of 7 species and confirmed genetically as S. erinaceieuropaei. The overall prevalence in all studied hosts was 29.5% with a mean infection intensity of 14.1 ± 33.8 larvae per individual. Native European badgers and invasive raccoon dogs were characterized by the highest prevalence. An analysis of parasite spread showed a spatially diversified probability of infection with the highest values occurring in the biodiversity hot spot, Białowieża Primeval Forest. Conclusions Our study revealed that various mammal species (both native and non-native) can serve as S. erinaceieuropaei reservoirs. The frequency and level of infection may differ between selected hosts and likely depend on host diversity and habitat structure in a given area. Further studies are needed to assess the distribution of the parasite throughout Europe and the environmental and biological factors influencing infection severity in wild mammals.

scholarly journals Assessment of Ground Regeneration around Borehole Heat Exchangers between Heating Seasons in Cold Climates: A Case Study in Bialystok (NE, Poland)

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4793
Author(s):  
Joanna Piotrowska-Woroniak
Keyword(s):  
Heat Exchangers ◽  
Experimental Studies ◽  
Heat Pumps ◽  
Cold Climate ◽  
Ne Poland ◽  
North Eastern ◽  
Recorded Data ◽  
Source Of Information

Based on the experimental studies, the process of ground regeneration around the borehole loaded with brine-water heat pumps working exclusively for heating purposes in the period of four consecutive heating seasons in a cold climate was presented. The research was conducted in north-eastern Poland. The aim of the work is to verify the phenomenon of thermal ground regeneration in the period between heating seasons on the basis of the recorded data and to check whether the ground is able to regenerate itself and at what rate. It was noticed that the ground does not fully regenerate, especially during heating seasons with lower temperatures. In the analyzed period, from 22 September 2016 to 12 October 2020, the ground probably cooled irreversibly by 1.5 °C. In order to illustrate and evaluate the speed of changes in the ground, the one’s profile with an undisturbed temperature field was presented for each month of the year. The presented results can be a very important source of information for the analysis of geothermal conditions occurring in the ground. They can be used to verify mathematical models and conduct long-term simulations that allow us to see the complexity of the processes taking place in the ground.

scholarly journals Occurrence of Arnoseris minima (L.) Schweigger et Koerte (Asteraceae) in Podlasie province (north-eastern Poland)

2015 ◽  
Vol 68 (3) ◽  
pp. 211-216
Author(s):  
Anna Bomanowska ◽  
Wojciech Adamowski ◽  
Dan Wołkowycki
Keyword(s):  
Species Distribution ◽  
Current Distribution ◽  
Field Studies ◽  
Geographic Range ◽  
Geographical Range ◽  
Published Data ◽  
Ne Poland ◽  
North Eastern ◽  
New Localities ◽  
New Locations

New localities of <em>Arnoseris minima</em> (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 and supplement it with another new 17 localities. The previously established geographic range of species in Poland can now be moved by about 30 km eastwards and 50 km northwards. The identification of new locations of <em>A. minima</em> on the border of its continuous geographical range becomes important in the context of the declining number of localities of this species recently observed across almost the whole of Europe.

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