scholarly journals Distribution and habitat properties of Carex pulicaris and Pedicularis sylvatica at their range margin in NW Poland

2016 ◽  
Vol 85 (3) ◽  
Author(s):  
Zofia Sotek ◽  
Małgorzata Stasińska ◽  
Ryszard Malinowski ◽  
Edward Meller ◽  
Grzegorz Grzejszczak ◽  
...  
Keyword(s):  
Field Studies ◽  
Historical Records ◽  
Small Community ◽  
Habitat Conditions ◽  
Distribution Dynamics ◽  
Different Types ◽  
Habitat Properties ◽  
Caricion Davallianae ◽  
Nw Poland ◽  
Pedicularis Sylvatica

This paper presents the distribution dynamics, soil and phytocoenotical conditions of the occurrence of <em>Carex pulicaris</em> and <em>Pedicularis sylvatica</em> at the margin of their range in NW Poland. Dynamic cartograms of these species were made on the basis of our field studies and available contemporary and historical records. The studies showed that the plants grow on organic hemic-muck soils, mucky soils and typical muckous soils. The occurrence of these two species on different types of soils proves that they are able to adapt easily to varying habitat conditions of post-bog areas. Populations of <em>C. pulicaris</em> and <em>P. sylvatica</em> were most frequently not numerous and occurred in small community patches. Analyzed phytocoenoses with <em>C. pulicaris</em> have been classified as the community of the alliance <em>Caricion davallianae</em> or the alliance <em>Molinion</em>. Phytocoenoses with <em>P. sylvatica</em> are represented by the association <em>Nardo-Juncetum squarrosi</em> and the community of the class <em>Molinio-Arrhenatheretea</em>. The distribution dynamics of these species shows that they are disappearing from some parts of this region, which proves the recessive trends. This process is more intensive for <em>P. sylvatica</em>, which should be included in the red list of Polish plants like <em>C. pulicaris</em>. The disappearance of the populations of both species has been caused by worsening habitat conditions (insufficient moisture, eutrophication), expansion of competitive plant species and land abandonment.

scholarly journals Ecology of Cladocera species from Central America based on subfossil assemblages

2016 ◽  
Vol 1 (1S) ◽  
Author(s):  
Marta Wojewódka ◽  
Edyta Zawisza ◽  
Sergio Cohuo ◽  
Laura Macario-González ◽  
Antje Schwalb ◽  
...  
Keyword(s):  
Species Composition ◽  
Central America ◽  
Wide Spectrum ◽  
Great Majority ◽  
Common Species ◽  
Quantitative Composition ◽  
Habitat Conditions ◽  
Mountain Regions ◽  
Different Types ◽  
Lowland Lakes

<p>Cladocera species composition was analyzed in surface sediments of 29 lakes in Central America (Guatemala, El Salvador and Honduras). The material studied was collected with an Ekman grab in autumn 2013 from lakes located in lowland, highland and mountain regions. The study revealed high variability in qualitative and quantitative composition of subfossil Cladocera. A total of 31 Cladocera species (5 planktonic and 26 littoral) were identified, as well as 4 morphotypes that could not be identified (NRR<em> </em>1-4). Planktonic Bosminidae<em> </em>and<em> </em>Daphniidae were the most abundant families. Daphniidae were restricted to water bodies in mountain regions, whereas Bosminidae were widely distributed in lakes with different abiotic conditions. Moreover, Bosminidae species also occurred in highly mineralized waters (&gt; 900 µS cm<sup>-1</sup>). The great majority of the identified Cladocera species belonged to the littoral family Chydoridae. <em>Chydorus </em>cf.<em> sphaericus</em> was the most common species (found in 20 lakes), which probably reflects its tolerance to a wide spectrum of habitat conditions. Cluster analysis discriminated 6 groups of Cladocera species with a high correlation level within groups (≥0.8), which showed different types of correlation with lake characteristics and environmental variables. Canonical correspondence analysis (CCA) showed that altitude and secondly water electrical conductivity were the most important drivers of Cladocera species composition in the region studied. Furthermore, CCA analysis indicated lowland lakes with low water transparency were also characterized by peculiar species assemblages. <strong></strong></p>

scholarly journals Mineralogy and Geochemistry of Fluvial-Lacustrine Pisolith Micronodules from the Roztoka Odrzańska, Odra River, NW Poland

Geosciences ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 3 ◽  
Author(s):  
Łukasz Maciąg ◽  
Urszula Rydzewska ◽  
Artur Skowronek ◽  
Sylwester Salwa
Keyword(s):  
Significant Contribution ◽  
Manganese Content ◽  
River Mouth ◽  
Geochemical Data ◽  
Iron Hydroxides ◽  
Szczecin Lagoon ◽  
Different Types ◽  
Odra River ◽  
Moderate Climate ◽  
Nw Poland

Small-sized ferruginous micronodules or pisolith nodules, frequently occurring in inland freshwater systems in moderate climate zones, are important indicators of groundwater level changes and early diagenetic processes, especially within the Pleistocene post-glacial sedimentary systems, including swamps, peatbogs, rivers, or lakes. Compared to the other geochemical environments, pisolith nodules are usually dominated by iron hydroxides and oxides. In most cases, described micronodules indicate high phosphatization, significant contribution of allogenic detrital components, and low manganese content. The major aim of the article is to present textural, geochemical, and mineralogical variability of pisolith nodules recovered from the Roztoka Odrzańska, Odra river mouth area, NW Poland. We describe genetical relations between different types of pisoliths and try to interpret the possible formation phenomena. Analyzed loose ferruginous micronodules were separated from the lacustrine silty-clayey sapropel muds and gyttja, later analyzed using optical microscopy, SEM-energy dispersive x-ray (EDX), and XRD methods. As a reference material, we use archival iron bog ores and geochemical data of different types of nodules. Additionally, we describe previously unknown siderite-rich nodules found in neighboring sites of the Dąbie Lake and the Szczecin Lagoon.

A Classification Scheme for Interpretive Research in Information Systems

2011 ◽  
pp. 218-239 ◽  
Author(s):  
Heinz K. Klein ◽  
Michael D. Myers
Keyword(s):  
Information Systems ◽  
Division Of Labor ◽  
Classification Scheme ◽  
Research Priorities ◽  
Field Studies ◽  
Research Articles ◽  
Interpretive Research ◽  
Philosophical Foundations ◽  
Different Types ◽  
Explicit Consideration

Given the increase in the number of interpretive research articles being published in IS today, we believe it is timely to develop and explain a classification scheme of the literature. Such a classification scheme draws attention to the tremendous variety and breadth of interpretive research today, from the most abstract and general philosophical foundations to the most in-depth, detailed field studies. The explicit consideration of different types may contribute to a more effective division of labor among scholars with different research interests. It should also help interpretive researchers to better focus their work and to identify their research priorities.

Identification and Risk Profiling of Major Stressors in the Indian IT Sector

2020 ◽  
pp. 097215091988645
Author(s):  
Saikat Chatterjee ◽  
Amit Shukla
Keyword(s):  
Work Stress ◽  
Field Studies ◽  
Workplace Stress ◽  
Mitigation Strategies ◽  
Job Dissatisfaction ◽  
Risk Scores ◽  
Risk Profiling ◽  
Novel Approach ◽  
Different Types ◽  
The Given

Workplace stress has always been considered as a potential source of job dissatisfaction and many psychosomatic disorders in employees the world over. The IT sector has emerged as a major contributor to work stress in India over the last 2 decades. Still there is lack of sector-specific studies, and most of the existing studies treat work stress as an umbrella term. Against this background, the objective of this article is twofold: one, to identify different types of stressors, and the other, to rate them according to their severity. The outcome should be helpful in devising proper mitigation strategies. On the basis of findings from the two field studies, the article identifies major stressors among junior level Indian IT professionals ( n1 = 38), and then furnishes a risk profile of these stressors on the basis of their frequency and impact ( n2 = 234). At the end, 21 stressors are identified in the given context, and their ‘riskiness’ is presented in a descending order in terms of risk scores. Implications of findings are discussed at the end. All the stressors were assigned a score in terms of their frequency, impact and risk. At the end, techno-stress emerged as the most serious stressor in both in terms of its frequency of occurrence and impact. The results serve as a guide to the management in the IT firms in addressing the prevalent high levels of stress at workplace. The risk scores will help them in allocating resources and, setting and prioritizing their HR strategies to this end. Amid few studies conducted in the context of stress in the Indian IT sector, this article offers useful and practical insights while deploying a novel approach of risk profiling.

Evaluating the Cost and Effectiveness of Customer Training Methods

1978 ◽  
Vol 22 (1) ◽  
pp. 331-331
Author(s):  
Stephen H. Ellis
Keyword(s):  
Field Studies ◽  
Training Effectiveness ◽  
Alternative Methods ◽  
Training Methods ◽  
Advantages And Disadvantages ◽  
Hands On ◽  
Different Types ◽  
Self Instruction ◽  
The Cost ◽  
Customer Training

The talk will deal with alternative methods of training customers to use new telephone services. Various measures of training effectiveness will be discussed with regard to their advantages and limitations. It will be argued that several measures—including cost—must be taken into account when evaluating training approaches. Two field studies will be described that examine several different types of training: (1) “Hands On” (demonstration) vs. “No Hands On” training; (2) Media-based vs. Lecture-based training; (3) “Live” training vs. Self-Instruction. The advantages and disadvantages of each approach will be described in terms of several measures of training effectiveness.

scholarly journals Invasive alien plant species of the southern part of the Nowogard Plain (NW Poland)

2011 ◽  
Vol 21 (1) ◽  
pp. 31-38
Author(s):  
Karolina Konopska
Keyword(s):  
Plant Species ◽  
Invasive Plant ◽  
Field Studies ◽  
Invasive Plant Species ◽  
Alien Plant Species ◽  
Impatiens Glandulifera ◽  
Alien Plant ◽  
Reynoutria Japonica ◽  
Invasive Alien Plant ◽  
Nw Poland

Invasive alien plant species of the southern part of the Nowogard Plain (NW Poland)Investigations on the distribution of selected invasive plant species in southern part of the Nowogard Plain were conducted in the vegetation seasons of years 2008-2010. Field studies were based on the cartogram method. The article shows the distribution of twelve selected invasive plant species:Echinocystis lobata, Heracleum sosnowskyi, Impatiens glandulifera, Impatiens parvifora, Padus serotina, Reynoutria japonica, Robinia pseudacacia, Solidago canadensis, Solidago gigantea, Quercus rubra, Rosa rugosaandAcer negundoin the study area.

KOSHI SHUNJŪ

Early China ◽  
1989 ◽  
Vol 14 ◽  
pp. 213-226
Author(s):  
Lothar von Falkenhausen
Keyword(s):  
Historical Records ◽  
Warring States Period ◽  
Warring States ◽  
Different Types ◽  
Sima Qian ◽  
Western Zhou ◽  
Extensive Damage

The Fuyang bamboo-strip “Annals” was compiled prior to 165 B.C., at least sixty or seventy years earlier than Sima Qian edited the various chronological tables in the Shiji. The “Annals,” which begins about the time of the Gong He interregnum of the Western Zhou and continues through the time of Qin Shi huangdi, seems to be incompatible with the “Qin Records” and was perhaps compiled using the “Historical Records” of some state other than Qin. It possibly includes two different types of tables: one in which years denominate the vertical columns and statenames the horizontal rows, with events recorded therein horizontally; and one that records the number of years that the feudal lords reigned. Although extensive damage makes it impossible to reconstitute the “Annals,” it can still provide useful information regarding some historical questions, such as the Warring States-period states of “East Zhou” and “West Zhou,” the appellations “Current King” and “Current Duke,” etc.

scholarly journals Bioaccumulation of Macronutrients in Edible Mushrooms in Various Habitat Conditions of NW Poland—Role in the Human Diet

2021 ◽  
Vol 18 (16) ◽  
pp. 8881
Author(s):  
Ryszard Malinowski ◽  
Zofia Sotek ◽  
Małgorzata Stasińska ◽  
Katarzyna Malinowska ◽  
Patrycja Radke ◽  
...  
Keyword(s):  
Organic Matter ◽  
Nutritional Value ◽  
Calorific Value ◽  
Test Methods ◽  
Human Organism ◽  
Fruiting Bodies ◽  
Habitat Conditions ◽  
Human Diet ◽  
Research Material ◽  
Nw Poland

Recently, the interest in mushroom consumption has been growing, since their taste and low calorific value are appreciated, but also due to their nutritional value. In determining the usefulness of mushrooms in the human diet, it is important to consider the conditions of their occurrence to perform the assessment of bioaccumulation of minerals. The aim of the study was: (a) to determine the content of selected macronutrients (P, K, Ca, Mg, Na) in fruiting bodies of Boletus edulis, Imleria badia, Leccinum scabrum and the soils, (b) to determine their bioaccumulation potential taking into account the habitat conditions, and (c) an attempt to estimate their role in covering the requirement for macronutrients of the human organism. The research material was obtained in the NW of Poland: Uznam and Wolin, the Drawa Plain and the Ińsko Lakeland. In the soil, we determined the content of organic matter, pH, salinity and the content of absorbable and general forms of macronutrients. The content of macronutrients in mushrooms was also determined. Chemical analyses were performed using the generally accepted test methods. The study showed that in NW Poland, B. edulis grew on the acidic soils of Arenosols, and I. badia and L. scabrum grew on Podzols. The uptake of K, Mg and Ca by the tested mushrooms was positively, and P and Na negatively correlated with the content of these elements in the soil. The acidity of the soil affected the uptake of K and Mg by mushrooms. There was no effect of the amount of organic matter in the soil noticed on the content of macronutrients (except sodium) in mushrooms. Among the studied macronutrients, none of the mushrooms accumulated Ca, while P and K were generally accumulated in the highest amounts, regardless of the species. Each of the other elements was usually accumulated at a similar level in the fruiting bodies of the species we studied. The exception was I. badia, which accumulated higher amounts of Mg compared to B. edulis and L. scabrum. Mushrooms can enrich the diet with some macronutrients, especially in P and K.

scholarly journals IDENTIFIKASI KUPU-KUPU RHOPALOCERA DAN VEGETASI HABITAT BERDASARKAN KARAKTER MORFOLOGI PADA BEBERAPA KAWASAN RESORT TALANG LAKAT TAMAN NASIONAL BUKIT TIGA PULUH PROVINSI RIAU

2019 ◽  
Vol 1 ◽  
pp. 105-118
Author(s):  
Ennie Chahyadi ◽  
Appriliya Destiyana ◽  
Mayta Novaliza Isda ◽  
Desita Salbiah
Keyword(s):  
Nature Conservation ◽  
Light Intensity ◽  
National Park ◽  
Morphological Characters ◽  
Physical Factors ◽  
Habitat Conditions ◽  
Aesthetic Value ◽  
Conservation Area ◽  
Different Types ◽  
Number Of Plant Species

Bukit Tiga Puluh National Park (TNBT) is a nature conservation area that has a variety of important and interesting fauna, one of which is a butterfly. The existence of butterflies in an ecosystem acts as a bioindicator, pollinator, and high aesthetic value. The type and number of butterflies are influenced by various environmental factors, one of the most important factors is the types of plants as vegetation habitat. The existence of different habitat conditions can be found in several areas in the Talang Lakat Resort TNBT Utilization Zone, namely in the area of ​​Mu'un Lake and Camp Granite. The study was to identify and inventory the Rhopalocera butterfly based on morphological characters and the presence of differences in habitat vegetation in the two areas in the TNBT utilization zone. The method used is the method of roaming with the help of insect nets. Sampling was carried out starting from the morning (08.00-11.00 WIB) until the afternoon (15.00-17.30 WIB). Samples obtained immediately made insectarium and identified. The results obtained are that there are some different types of butterflies and plants between the Granite Camp region (15 and 26 species) and mu'un lake (7 and 15 species). The butterflies obtained consisted of the Hesperiidae, Lycaenidae, Papilionidae, Nympalidae and Pieridae families. The highest number of species and individuals of butterflies in the two regions comes from the Nympalidae Family. The differences in the types of butterflies in the two regions are influenced by the quite high differences in the number of plant species that dominate in each region which is a habitat for butterflies. Besides physical factors also support the existence of butterflies (temperature, light intensity, humidity)

scholarly journals Meadows with dandelions of the section Palustria in Pogórze Dynowskie, S Poland

2017 ◽  
Vol 70 (2) ◽  
Author(s):  
Krzysztof Oklejewicz ◽  
Mateusz Wolanin ◽  
Krzysztof Szubart ◽  
Paweł Marciniuk ◽  
Jolanta Marciniuk
Keyword(s):  
Field Studies ◽  
Habitat Conditions ◽  
Ecological Characteristics ◽  
S Poland

The paper presents ecological characteristics of meadows with <em>Taraxacum</em> sect. <em>Palustria</em> in Pogórze Dynowskie. Field studies were carried out using the patrol method. Floristic description was made, methods of meadow use were evaluated and habitat conditions were determined based on Ellenberg’s bioindication method on every meadow with marsh dandelions. Analyses were performed in eight sites with <em>T. mendax</em>, <em>T. paucilobum</em>, <em>T. polonicum</em>, <em>T. portentosum</em>, and <em>T. vindobonense</em>.

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