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The paper presents a list of fish species, which are classified according to Nelson. The collection is placed in the Prof. J. Wengris Museum of the Department of Zoology, Olsztyn University of Agriculture and Technology.
New localities of 22 species of Leiodidae in the Kampinos National Park are presented, among them 13 species new for the studied area. Six species have been recorded from the Mazovian Lowland for the first time: Anemadus strigosus, Agathidium confusum, Amphicyllis globus, Amphicyllis globiformis, Anisotoma orbicularis and Colenis immunda.
The occurrence of Omonadus bifasciatus (ROSSI, 1792) in Poland has been confirmed after 100 years. Detailed data on collecting circumstances is reported and the list of accompanying beetle species is given. The bionomy and habitat preferences of O. bifasciatus are discussed on the basis of literature and unpublished data.
New distributional records of seven genera and fifteen species of Caenoscelini and Cryptophagini in Poland are presented. Caenoscelis sibirica, C. subdeplanata and Sternodea baudii are among the most interesting cryptophagids recently found in new localities and previously reported from 1-2 sites in Poland only. Remarks concerning identification of Caenoscelis species are given, and the aedeagi of C. sibirica and C. ferruginea are illustrated.
During the years 1997-1999, the numbers and biomass of earthworms in the soil of pastures fertilized with compost at 30 t ha⁻¹ or with mineral fertilizers at the dose corresponding with the quantity of nitrogen in compost (150 kg ha⁻¹) situated in the area of Mazury Landscape Park in northeastern Poland was studied. The number and biomass of earthworms were significantly larger at the pasture treated with organic fertilization than at the pasture treated with mineral fertilization at (P < 0.05); the average number was higher by 1.2 times (351-418 individuals m⁻² and 279-349 individuals m⁻²), biomass by 1.4 times (142.4-173.0 g m⁻² and 103.3-119.5 g m⁻²). In both pastures presence of three earthworm species: Apporectodea caliginosa, Lumbricus terrestris, Apporectodea rosea was found. Apporectodea caliginosa was the dominating species (77.0-93.2% of total number). The number and biomass of that species during the entire period of the experiment were significantly higher at the pasture treated by organic fertilization than at the pasture treated with mineral fertilization. On the other hand the number of Lumbricus terrestris possessing the share of 6.6-22.4% did not show any relation to fertilization type.
New localities of 34 species of Histeridae in the Kampinos National Park are presented, among which 21 species are new to the studied area. One species, Aeletes atomarius, has been recorded from the Mazovian Lowland for the first time.
New localities of Platypsyllus castoris in Poland are reported. The species is newly reported from Pomeranian Lakeland, Podlasie and Kraków-Wieluń Upland.
New faunistic records concerning 16 species of the family Anthicidae in Poland are given. First detailed records of Stricticollis tobias (MARSEUL) in Poland are reported.
New faunistic records of 14 species of Mycetophagidae from Poland are given. Litargus balteatus and Typhaea stercorea are newly recorded from the Masurian Lake District. Litargus balteatus, Triphyllus bicolor and Typhaea stercorea are new for the Pomeranian Lake District. Mycetophagus fulvicollis is newly reported from the Mazowiecka Lowland and Trzebnickie Hills. Mycetophagus decempunctatus and M. multipunctatus are recorded for the first time from the Mazowiecka Lowland and Western Sudety Mts., respectively.
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