Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "pond" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Zooplankton structure in midfield ponds in north-west part of Poland
Autorzy:
Brysiewicz, A.
Jankowski, M.
Tański, A.
Powiązania:
https://bibliotekanauki.pl/articles/101396.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
zooplankton
midfield pond
agricultural areas
Opis:
Midfield ponds are characterised by a rich biodiversity. A significant role in the function of these specific water ecosystems is played by resident zooplankton, which is a valuable component of numerous trophic networks. The aim of the present work was to study the taxonomic composition, concentration and biomass of zooplankton in two midfield ponds situated in the area of one commune, but geomorphologically different from each other. Experiments were conducted in the summer seasons (June-August) in the years 2011-2013 in two ponds. The presence of 55 zooplankton taxa, commonly present in such water reservoirs in Poland, was observed. Most species were determined. The largest group comprised rotifers (Rotifera) - 35 taxa. The crustacean zooplankton was less diverse: 11 taxa of copepods (Copepoda) and 9 taxa of water fleas (Cladocera) were found. The reservoir in Stare Czarnowo exhibited a greater number of taxa, where as many as 40 taxa were observed. However, 35 taxa belonging to various zooplankton groups were found in the pond in Żelisławiec. The relatively low Jaccard index confirmed small qualitative similarity between the studied ponds. Both reservoirs contained representatives of species defined as characteristic for oligosaprobic and mesosaprobic waters, which may indicate small contamination of the two ponds and the occurrence of a large amount of organic matter undergoing decomposition.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1673-1686
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Composition of ichthyofauna of small midfield ponds in relation to their environmental conditions and the possibility of angling exploitation
Autorzy:
Brysiewicz, A.
Wesołowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/101632.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
pond
ichthyofauna
biodiversity
dominance index
constancy index
Opis:
One of the most intriguing and still rather mysterious water ecosystems are small mid-field ponds. Relatively little attention is devoted to representatives of ichthyofauna inhabiting them. The purpose of this work was the evaluation of the species and quantitative composition of the fish inhabiting several selected mid-field ponds (five), and the analysis of habitat conditions and the possibility of utilising small countryside ponds for angling purposes. Overall, 203 fish belonging to eight species were caught. The highest number was recorded in the pond No. 5 (84 specimens), and the lowest number was recorded in the pond No. 3 (18 specimens), where all the fish belonged to one species - Carassius auratus gibelio. No fish habitation was detected in the pond No. 1. The highest dominance index (Di) was achieved by Perca fluviatilis (33.5%) and Carassius carassius (17.73%), whereas the lowest index belonged to Scardinius erythrophtalmus (2.46%) and Blicca bjoerkna (5.42%). The comparison of constancy index values (Ci) indicates that as many as six fish species out of eight demonstrated high constancy of 60%, whereas two fish species (Blicca bjoerkna and Scardinius erythrophtalmus) reached a low level of constancy amounting to 20%. The studied ponds predominantly featured good or very good conditions for angling. In 2012, the presence of 28 anglers was noted witth regard to the studied ponds, therefore, it can be stipulated that small mid-field ponds contribute to the development of angling in Poland.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/3; 1569-1580
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka batrachofauny występującej w śródpolnych oczkach wodnych na terenach użytkowanych rolniczo
Characteristics of batrachofauna occurring in mid-field ponds on agricultural land
Autorzy:
Brysiewicz, A.
Wesołowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/101091.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
batrachofauna
śródpolne oczko wodne
obszary wiejskie
mid-field pond
rural areas
Opis:
Badania płazów prowadzono w latach 2010-2012 w dwóch śródpolnych oczkach wodnych w gminie Stare Czarnowo, w północno-zachodniej części Polski. Celem badań była ocena składu gatunkowego i liczebności całkowitej płazów dorosłych i juwenilnych oraz miejsc ich rozrodu. Stwierdzono, że w obu oczkach wodnych dominowały żaby brunatne: zwłaszcza Rana arvalis i żaby zielone: Pelophylax esculentus, Pelophylax lessonae. Spotykano je nie tylko podczas godów, ale w całym okresie badawczym także na przyległych polach uprawnych i linii brzegowej. Mniej licznie na tym obszarze występowały: Hyla arborea oraz Bombina bombina. Najrzadszym przedstawicielem batrachofauny była Pelobates fuscus, która występowała tylko w jednym oczku wodnym w 2012r. W obu badanych zbiornikach zanotowano występowanie przedstawiciela płazów ogoniastych: Lissotriton vulgaris. Liczne występowanie płazów w omawianych śródpolnych oczkach wodnych jest dobrym sygnałem, gdyż batrachofauna to doskonały bioindykator środowiska wodnego.
Amphibian survey conducted in 2010-2012 in two mid-field ponds in the village of Stare Czarnowo, in the north-western part of Poland. The aim of the study was to evaluate the species composition and abundance of adult and juvenile amphibians and their breeding sites. It was found that in both ponds dominated brown frogs: especially Rana arvalis and green frogs: Pelophylax esculentus, Pelophylax lessonae. We meet them not only during the mating season, but throughout the study period also in adjacent agricultural fields and coastline. Less numerous in this area occurred: Hyla arborea and Bombina bombina. The rarest representative of batrachofauna was Pelobates fuscus, which appeared only in one pond in 2012. In both ponds were recorded occurrence of a representative of the tailed amphibians: Lissotriton vulgaris. Numerous occurrence of amphibians in these mid-field ponds is a good sign, because batrachofauna is an excellent bioindicator aquatic environment.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, I/1; 7-20
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physiographic and meteorological conditions in the Doplyw spod Nowej Wsi catchment during the last 150 years
Autorzy:
Okonski, B.
Miler, A.T.
Panfil, M.
Powiązania:
https://bibliotekanauki.pl/articles/59808.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
physiography
meteorological condition
Doplyw spod Nowej Wsi catchment
catchment
history
Warmia region
forested-agricultural catchment
pond storage
natural pond storage
anthropogenic factor
air temperature
long-term change
Opis:
The paper covers research on physiographic features and anthropogenic factors influence on natural pond water storage. The problem was investigated both at the level of the Dopływ spod Nowej Wsi catchment (27.53 km2) and the smaller spatial unit Bagna Ramuckie natural pond (12.4 ha). Dynamics of physiographic features, changes of hydrographical network and anthropogenic factors including water, land and forest management practices were investigated. The decisive factor modulating processes of water storage rebuilding for investigated spatial units seems to be dynamics and long-term directional changes of air temperature. Rebuilding of pond water storage occurred after a 40-year period of air temperature decrease and the decline of water storage after a 20-year period of air temperature increase. Precipitation had minor significance in modulating pond water storage in long-term periods, because lack of long-term precipitation trends in analysed period. Although in short-term periods precipitation have important modulating impact on a decline of pond storage. The decline occurred after the dry period from 1989 to 1995 as a result of high deficit of climatic water balance. Spectacular rebuilding of pond water storage occurred in Bagna Ramuckie after the cold and wet period from 1956 to 1965. Non-climatic physiographic features and anthropogenic factors did not influence the processes of pond water storage rebuilding and decline because both of these factors seemed to be stationary over at least eight decades of 20th century, while processes of storage rebuilding or decline lasted over the investigated spatial unit.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2008, 06
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies