Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

4 Journal of Ecological Engineering

Znaleziono wyników: 4

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Diatoms (Bacillariophyta) from the Genus Eunotia and Pinnularia Developing on Soils in the Open Landscape of the Low Beskids

100%

Poradowska A.

Journal of Ecological Engineering

2020

tom Vol. 21, nr 7

257--270

In the areas of medium mountains, including the landscape of the Low Beskids, turf communities guarantee the biodiversity increasing the value of open landscape and protecting soil from erosion. The aim of this study was to show the diversity of the diatom communities from the Eunotia and Pinnularia genera developing on soils under the conditions of varied landscape use (meadows, pastures, fallow lands). The research was carried out within the catchment area of the Ryjak stream in the Magura National Park, together with the buffer zone at three sites. The water content varied in the studied soils with fluctuating moisture content depending on the season and the research year. On the other hand, the pH values indicated high acidification of the studied soils. The diatomaceous analysis showed numerous occurrences of the Eunotia (12 taxa) and Pinnularia (18 taxa) genera. The acid pH of the soil undoubtedly favored the development of diatoms of these genera. Most species of the Eunotia and Pinnularia genera usually developed individually, except for Pinnularia borealis Ehrenberg and P. obscura Krasske. They are typically soil species; therefore, they often dominated in the material and occurred in most of the research seasons. Apart from cosmopolitan diatoms, rare or endangered taxa from the Red List of the algae in Poland (Siemińska et al. 2006) were also found on soils. Four species belonged to the endangered category (E): Eunotia botuliformis F. Wild, Nörpel & Lange-Bert., Pinnularia nodosa (Ehrenberg) Smith, P. schoenfelderi and P. viridiformis Krammer. Canonical analysis (CCA) demonstrated a rather low statistical significance of the impact of environmental parameters (pH and humidity) on the differentiation of diatom communities. It only confirmed the fact that diatoms develop better in the environment with permanent or at least periodic moisture, compared to the dry habitats.

The Occurrence of Diatoms from Genus Kobayasiella in Southern Poland

63%

Noga T. , Poradowska A.

Journal of Ecological Engineering

2022

tom Vol. 23, nr 4

197--200

The Kobayasiella genus develops mostly in oligoor dystrophic freshwaters with low to medium electrolyte content. The studies carried out from 2008 to 2016 in southern Poland showed the presence of four Kobayasiella species. These species usually occurred individually in peatland areas or in the upper sections of small rivers and streams. The species presented in the study were most frequently found in oligotrophic peatbogs, characterized by acidic or very acidic waters with low or medium conductivity values.

Pogórze Przemyskie Landscape Park Complex as a Habitat for Rare and New to Poland Pinnularia Species

51%

Noga T. , Skubisz J. , Poradowska A.

Journal of Ecological Engineering

2024

tom Vol. 25, nr 2

203--214

The peat bog areas in southeastern Poland are a habitat for many interesting, often endangered, and rare or even new diatom species for Poland. Research conducted in the years 2022–2023 in three landscape parks (Pogórze Przemyskie Landscape Park, Południoworoztoczański Landscape Park, and Janowskie Forests Landscape Park) has allowed the identification of numerous rare and endangered species from the Pinnularia genus, including some that are new to Poland. The paper provides a detailed morphological and ecological characterization of six rare or endangered Pinnularia species, among which two were found to be new for Poland (Pinnularia lokana and P. esoxiformangusta).

Diversity in Anthropogenic Environment – Permanent Puddle as a Place for Development of Diatoms

51%

Rybak M. , Noga T. , Poradowska A.

Journal of Ecological Engineering

2019

tom Vol. 20, nr 8

165--174

Specific conditions in urban areas favour large species richness, these are also places prone to the anthropogenic pressure. As a result, many studies on aquatic habitats in urban ecosystems have been carried out. The aim of this study was to investigate the diversity of diatom assemblages developing in artificial environment in relation to water chemical parameters. The study was performed on a small water outflow in south-eastern Poland, which started in the storm sewage. The water at the studied sites was characterized by alkaline pH and low content of nutrients. The values of other chemical parameters were highly variable, depending on the research season. A total of 113 taxa were identified in five research seasons; most of them prefer circumneutral and fertile habitats, with a high content of biogens and are tolerant to water pollutions. Aerophytic and terrestrial taxa were observed in the analyzed materials in high diversity.