Wyniki wyszukiwania

1

The Lomianki Commune as a subject of complex ecological and geographical studies

100%

Pinowski J., Solon J.

Polish Ecological Studies

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1992

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tom 18

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nr 3-4

2

Abiotic natural environment in the area of selected raised mires

80%

Zurek S.

Monographiae Botanicae

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2005

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tom 94

3

Zastosowanie ekologicznych liczb wskaznikowych do oceny abiotycznego srodowiska parkow wiejskich w Kotlinie Sandomierskiej

80%

Fornal-Pieniak B., Wysocki C.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2009

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tom 08

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nr 1-2

13-26

Ekologiczne liczby wskaźnikowe Ellenberga i innych oraz Zarzyckiego i innych wykorzystano do określenia najważniejszych relacji między środowiskiem abiotycznym a składem gatunkowym warstwy ziół w zadrzewieniach parkowych. Badania wykonano w 51 parkach wiejskich na terenie Kotliny Sandomierskiej. Wyniki badań wykazały, że istnieją istotne relacje między roślinnością parków wiejskich a elementami środowiska abiotycznego, takimi jak światło oraz wilgotność i skład fizyczno-chemiczny gleby. Stwierdzono, że na zróżnicowanie składu gatunkowego roślin warstwy runa ma wpływ pielęgnacja szaty roślinnej lub jej brak, np. parki pielęgnowane (z koszoną warstwą runa), mające silniej przekształcone siedlisko, cechują się większym udziałem roślinności synantropijnej w warstwie ziół.

4

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Phytoplankton and environmental variables as a water quality indicator for the beaches at Matrouh, South-Eastern Mediterranean Sea, Egypt: an assessment

80%

Gharib S. M., El-Sherif Z. M., Abdel-Halim A. M., Radwan A. A.

Oceanologia

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2011

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tom 53

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nr 3

This study was carried out to determine the water quality of the beaches at Matrouh, south-eastern Mediterranean Sea, Egypt, by studying environmental variables as well as phytoplankton abundance and community structure. Surface water samples were monitored from a series of beach sites over a period of five seasons during 2009–2010. A total of 203 phytoplankton species were identified from seven algal divisions. Seasonal differences in the quantitative and qualitative composition of the phytoplankton communities in the different sites were marked. Nutrient concentrations and phytoplankton abundances were found to be poorer than those of many other areas along Egyptian coast. The Shannon-Wiener Diversity Index classified Matrouh water as being between clean and moderately polluted, whereas the WQI demonstrated that it was between good and excellent. It can be concluded that the index based onWQI is currently more suitable than the phytoplankton species index for assessing the quality of the water of the Matrouh beaches.

5

Influence of the local abiotic environment, weather and regional nutrient loading on macrobenthic invertebrate feeding groups in a shallow brackish water ecosystem

80%

Veber T., Kotta J., Lauringson V., Kotta I.

Oceanologia

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2009

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tom 51

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nr 4

This study evaluated the extent to which depth, sediment type, exposure to waves and coastal slope inclination modulate the relationships between regional nutrient loading, weather patterns and the species composition and dominance structure of macrobenthic invertebrate feeding groups in a brackish water ecosystem of the Baltic Sea. Irrespective of feeding function, the species composition and dominance structure of benthic invertebrate communities were determined by local abiotic variables such as exposure, depth and sediment type. Regional weather variables (average southerly winds, salinity, water temperature, ice conditions) either separately or interactively contributed to the variability of benthic invertebrates. Nutrient loading had significant effects on benthic invertebrates only in interactions with local abiotic or regional weather variables. Herbivores, deposit feeders and suspension feeders exhibited a stronger response to the studied environmental variables than carnivores. All this suggests that (1) the dynamic coastal habitats studied in this work are not very sensitive to shifts in nutrient loading and (2) local abiotic conditions and weather patterns largely define the observed biotic patterns. We believe that the benthic invertebrate time series will only be a better reflection of the nutrient loading signal if more years covering extreme events are included.

6

Community structure of spiders in sulphur-polluted habitats in the Karkonosze Mts (Poland)

80%

Rybak J.

Polish Journal of Ecology

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2016

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tom 64

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nr 4

Spiders are considered to be sensitive to habitat pollution, but the effect of sulphur contamination on spider communities is poorly known and studied, although the impact of sulphur can be realized by the changes of soils and forest community. This work examined the diversity of ground-dwelling spiders in sulphur-contaminated habitat among three types of studied biotopes (deforested area, thicket, spruce forest) in the area of the Karkonosze Mountains (Sudetes Mountain System) in Poland. In the late 1970s and 1980s, a large-area forest decline in Sudetes Mountains, mainly derived from industrial emissions caused drastic changes in abiotic environment leading to the fundamental forest ecosystem transformation. The results of these damages were studied directly after the forest decline took place. Nowadays, more than 20 years after the ecological disaster, 13 sites were chosen according to habitat type to study the long-term impact of sulphur on spiders. The sites with high and low sulphur content in soil were not significantly different with regard to spider species diversity, although the most deforested sites were characterized by the lower values of sulphur. The only significant positive correlation found was the dependence between spiders' diversity and plant richness. All studied habitats were characterized by different community structure, although thickets was the most diverse with predomination of Linyphiids and Lycosids.

Ograniczanie wyników

2 Oceanologia

1 Acta Scientiarum Polonorum. Formatio Circumiectus

1 Monographiae Botanicae

1 Polish Ecological Studies

1 Polish Journal of Ecology

1 Abdel-Halim A. M.

1 El-Sherif Z. M.

1 Fornal-Pieniak B.

1 Gharib S. M.

1 Kotta I.

1 Kotta J.

1 Lauringson V.

1 Pinowski J.

1 Radwan A. A.

1 Rybak J.

1 Solon J.

1 Veber T.

1 Wysocki C.

1 Zurek S.

1 2016

1 2011

2 2009