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The paper presents seasonal changes in the concentrations of ammonia, nitrate and phosphate ions in podzolic soils under the Vaccinio uliginosi–Betuletum pubescentis and Empetro nigri-Pinetum plant communities. It results from the conducted investigations that the distribution and accumulation of mineral forms of nitrogen and phosphorus are considerably affected by atmospheric conditions such as temperature, humidity and precipitation. Analysed soils were characterised by a strongly acid reaction, which decreases with the depth of the soil profiles. A statistically significant correlation was found between the content of biogenic substances in soil and litterfall. The highest concentration of biogenic substances was observed in spring and summer months. Among analysed ions the ammonia form predominated, which mean content remained within the range from 0.12 to 6.69 mg/100 g d.m. Concentration of nitrates ranged from 0.05 to 0.13 mg/100 g d.m., while that of phosphates – from 0.04 to 3.09 mg/100 g d.m. The predominance of the ammonia and phosphate forms over the nitrate form in the organic horizons may result from their retention by the sorption complex. Nitrate ions exhibit greater mobility and are leached deeper into the analysed soil profiles.
Post-mortem examination of 22 red deer (in January, May, August and October 1990-1991) yielded ca 18,000 parasites representing 15 species. For one species, Spiculopteragia dagestanica, red deer appeared to be new host. Prevalence and intensity of infection in relation to the season of the year was considered. All red deer examined harboured nematodes of the subfamily Ostertagiinae in the abomasum, the mean intensity amounted to 830 parasites per host, the highest intensity (1610) was observed in May, the lowest (262) in January. The level of infection was compared with parasitological data from other hunting grounds in Poland. High density of red deer stock in the area examined (100/1000 ha) seems to have little bearing on the level of infection of red deer with helminth parasites.
The paper presents results of research into organic horizons and litterfall in two different forest ecosystems: Vaccinio uliginosi-Betuletum pubescentis and Empetro nigri-Pinetum in 2003-2005. On the basis of the amount and abundance of litterfall and abundance of organic horizons in the nitrogen and phosphorus compounds retention time and biological circulation coefficient of these elements in researched forest ecosystems was calculated. The nitrogen and phosphorus in organic horizons of Vaccinio uliginosi-Betuletum pubescentis have the shortest retention time (44 and 57 years respectively). The retention time of nitrogen and phosphorus in Empetro nigri-Pinetum are similar and counted about 62 years. The coefficient values of biological circulation show the strong inhibition of circulation of these elements, what caused reservation of matter in organic horizons and acidity of soil.
The present qualitative and quantitative study on macrozoobenthos was conducted in 1998 in the coastal zone of the Baltic Sea adjacent to the Słowinski National Park (SNP). The macrozoobenthos of this zone exhibited quantitative scarcity (12 species) and low content of the wet mass. More frequent were only Oligochaeta, Pygospio elegans, and Batyporeia pilosa. Because of a better specific diversity, density, and wet mass of the macrozoobenthos in the zone outside 1 nautical mile limit, the author suggests widening the proposed marine protected zone of the SNP giving it the status of marine Landscape Park up to 3 nautical miles.
The study on properties of proper podzol soils was carried out in two different forest ecosystems: Vaccinio uliginosi-Betuletum pubescentis and Empetro nigri-Pinetum in the Slovinski National Park (17o15΄E, 54o44΄N). Analysed soils are acid and strongly acid, with soil pH decreasing with the depth of the genetic soil horizon. Average soil moisture content is significantly related with contents of organic matter and volumetric density. This is confirmed by means and high values of Spearman’s correlation coefficient, amounting to R=0.72 (p<0.05, n=50) in the genetic profile of Vaccinio uliginosi-Betuletum pubescentis and R=0.83 (p<0.05, n=50) in the Empetro nigri-Pinetum oraz -0.42 (p<0.05, n=50, Vaccinio uliginosi-Betuletum pubescentis) and -0.73 (p<0.05, n=50, Empetro nigri-Pinetum). Maximum contents of nitrogen, phosphorus and carbon were observed in mineral peat soil of Vaccinio uliginosi-Betuletum pubescentis and in upper organic levels of the analysed soil profiles. This is a very important source of biogenic elements, especially for stands, providing a better supply of biogens for forest plants.
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Species of anamorphic fungi rare and new for Poland

72%
Morinia pestalozzioides, Seimatosporium hypericinum, Septoria artemisiae, S. artemisiaemaritimae, S. achilleicolaand S. symphyti, fungi not recorded in Poland before, are described and illustrated. The species were found during studies on the occurrence of parasitic fungi conducted in selected sites in the Słowiński National Park and in the Western Pomerania between 2001 and 2004.
The Park is situated on the Słowiński Coast and its almost whole area belongs to the Baltic Coastal Geobotanical Region. The studies were carried out in the cultivated fields of the SNP, mainly covered by pine forests, where agriculture plays a minor part. The material collected in the years 1997-1998 comprised 115 phytosociological relevés made by the Braun-Blanquet method, according to the classifications and nomenclature given by Kornas (1972). The names of species were adopted after Mirek et al. (1995). The paper presents the occurrence and analytical characteristics of subatlantic association against the background of habitat condition. Arnoserido-Scleranthetum is floristically the poorest community of weeds developing in winter cereals of the SNP. It is differentiated into two variants: A.-S. typicum and A.-S. myosotetosum with Anthoxanthum aristatum Boiss.
The aim of this study was to (i) determine environmental pollution in Słowiński National Park on the basis of Zn, Fe, Ni, Cd and Cr concentrations in Pleurozium schreberi gametophores, (ii) draw a map of heavy metal concentrations in the area and (iii) compare the results with previous reports. Samples of Pleurozium schreberi were collected from 27 locations in Słowiński National Park in 2002. Cd concentration was determined by atomic absorption spectrometry (AAS), and Zn, Fe, Ni and Cr concentrations were determined using neutron activation analysis. The results of our research suggest a reduction of heavy metal contamination in the area of Słowiński National Park over the last 27 years and confirmed that the area is one of the cleanest in Poland and may still serve as a reference background for determining pollution in other areas.
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