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1

Wplyw wykoszenia makrofitow na ekosystem jeziorny

100%
Piotrowicz R.
Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu
|
1992
|
tom 49
231-238
2

Roslinnosc wybranych jezior lobeliowych na tle warunkow fizyczno-chemicznych ich wod.

63%
Kraska M., Piotrowicz R.
Idee Ekologiczne. Seria:Szkice
|
1994
|
tom 04[6]
67-83
3

Zawartosc wybranych metali ciezkich w roslinach jezior lobeliowych.

51%
Kraska M., Laczkowska K., Piotrowicz R.
Idee Ekologiczne. Seria:Szkice
|
1994
|
tom 04[6]
159-165
4

Jeziora lobeliowe w Polsce

51%
Kraska M., Piotrowicz R., Klimaszyk P.
Chrońmy Przyrodę Ojczystą
|
1996
|
tom 52
|
nr 3
5-25
5

Chemical properties of bottom sediments in throughflow lakes located in Drawienski National Park

51%
Mielnik L., Piotrowicz R., Klimaszyk P.
Oceanological and Hydrobiological Studies
|
2009
|
tom 38
|
nr 3
69-76
6

Jeziora lobeliowe

51%
Kraska M., Piotrowicz R., Klimaszyk P.
Aura
|
1997
|
nr 08
17-18
In Poland there are 163 lakes (a major percentage in Western Pomerania) which thanks to its specific physical and chemical properties and unique vegetation are termed lobelian lakes. These are mostly small reservoirs without any tributaries which due to poor and small watersheds have retained the status of oligotrophic lakes. Vegetation occurring there includes boreal and Atlantic relicts, classified as rare and protected species, e.g. Lobelia dortmanna, Isoetes lacustris and Litorella uniflora. These species have special habitat and nutrition requirements and they grow only in lakes with the low calcium content. The article provides characteristics of these unique ecosystems.
7

Anthropogenic changes in properties of the water and spatial structure of the vegetation of the lobelia lake Lake Modre in the Bytow Lakeland

51%
Kraska M., Klimaszyk P., Piotrowicz R.
Oceanological and Hydrobiological Studies
|
2013
|
tom 42
|
nr 3
8

The effect of physico-chemical properties of water on the distribution and composition of ciliates (Ciliata) in the pelagial of lakes

51%
Ostapiuk J., Piotrowicz R., Klimaszyk P.
Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego
|
2004
|
tom 01
9

Macrophytes of the preliminary reservoirs and their role in water self-purification of the river Cybina

51%
Kraska M., Piotrowicz R., Staszczyk E.
Prace Komisji Nauk Biologicznych Poznańskiego Towarzystwa Przyjaciół Nauk
|
1994
|
tom 74
59-73
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Habitat and growth conditions of the rare Potamogeton hybrids: P. x sparganifolius Least. ex. Fr. and P. x nericius Hagstr. in the Drawienski National Park

51%
Kraska M., Piotrowicz R., Kujawa-Pawlaczyk J.
Acta Societatis Botanicorum Poloniae
|
2004
|
tom 73
|
nr 1
The two pondweed taxa, new for the Polish flora, were found in the Drawa River in the Drawieński National Park (north-western Poland). Patches of P. x sparganiifolius started about 400 m below the mouth of the left-bank tributary, the Korytnica River, and ended about 5.5 km further downstream. The population colonized mainly a sandy substrate with varied particle size, moderately deep water, and moderate water flow rate. The patches were very dense and composed nearly exclusively of P. x sparganiifolius. They occurred mainly in the main current of the Drawa, and were up to several dozen metres long. By contrast, P. x nericius was found only in a small creek with stagnant water, at the edge of a patch dominated by P. x sparganiifolius, on a substrate composed of mud and sand, at the depth of 40-60 cm.
11

Dystrophication as the chief factor of changes in the physico-chemical properties of water and vegetation of lobelian lakes of the Bory Tucholskie National Park [NW Poland]

51%
Kraska M., Piotrowicz R., Radziszewska R.
Acta Hydrobiologica
|
1999
|
tom 41
|
nr Suppl.6
12

Meromictic Lake Czarne in the Drawienski National Park

51%
Kraska M., Klimaszyk P., Piotrowicz R.
Oceanological and Hydrobiological Studies
|
2006
|
tom 35
|
nr 1
13

Vegetation richness and nutrient loads in 16 lakes of Drawienski National Park [Northern Poland]

45%
Piotrowicz R., Kraska M., Klimaszyk P., Szyper H., Joniak T.
Polish Journal of Environmental Studies
|
2006
|
tom 15
|
nr 3
The paper provides morphometric, physicochemical and vegetation structure of the 16 lakes in Drawieński National Park (DNP). These lakes showed considerable differentiation according to their morphometrical and physico-chemical variables. There are distinguished 4 groups of lakes: (1) throughflow lakes; (2) small, eutrophic non-throughflow lakes; (3) dystrophic lakes with humic water bodies; and (4) mesotrophic lakes. A dependence of the structure of the predominant vegetation types on morphometrical and physico-chemical variables was tested. Results of study of vegetation structure proves the initial classification of the lakes into several groups on the basis of environmental variables. The most important type of vegetation of throughflow lakes are helophytes and nymphaeids. The phytolitoral of eutrophic non-throughflow lakes is scanty. The vegetation of dystrophic lakes is dominated by species with floating leaves and mosses. The common vegetation of mesotrophic lakes is dominated by Chara species and elodeids.
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Biodiversity in three lobelian lakes in relation to the catchment area influence

45%
Kraska M., Piotrowicz R., Klimaszyk P., Kuczynska-Kippen N., Szelag-Wasielewska E.
Acta Agrophysica
|
2006
|
tom 07
|
nr 2[133]
15

Application of GIS and GPS tools in qualification and classification of a lake’s ecological status

39%
Dynowski P., Zrobek-Sokolnik A., Ciecierska A., Dziedzic J., Piotrowicz R., Holdynski C.
Polish Journal of Environmental Studies
|
2014
|
tom 23
|
nr 2
The use of simple GIS and GPS techniques as tools supporting field data collection in the process of macrophyte-based assessment and classification of the ecological status of lakes is described in the paper. The ecological status of Lake Długie was determined with traditional water quality evaluation methods, including the “anchor” or “diving and GIS” method. Obtained results show simple GIS techniques for registering submerged plant communities supplemented with terrain investigations involving scuba diving, producing more accurate data than those acquired with traditional methods.
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