Wyniki wyszukiwania

1

Reaction of ant communities to degradation of forest habitats in the Karkonosze Mountains

100%

Petal J.

Memorabilia Zoologica

|

1994

|

tom 48

171-179

2

Miedzynarodowe sympozjum na temat "Naturalne i uzytkowane rolniczo ekosystemy torfowiskowe i ich zagospodarowanie" [Saint Malo, Francja, 25-29 VIII 1997 r.]

100%

Petal J.

Wiadomości Ekologiczne

|

1998

|

tom 44

|

nr 1

49-50

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Communities of soil invertebrates in meadows on transformed hydrogenous soil

100%

Petal J.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1993

|

tom 406

111-117

In 1987-1989 studies were conducted on soil invertebrates occurring on meadows in the Biebrza river valley (Kuwasy), spreading on muck developed of peats of various origin and under different degree of transformation. There was recorded a pronounced differentiation of invertebrate density in successive years of studies and dependence of density on the amount and distribution of precipitation in a season. With regard to density of invertebrates two groups of habitats were distinguished, namely, a) located on soil developed of sedge-moss and moss-tall sedge peats and b) sedge- moss-alder and alder peats. As compared to the former group of habitats, fauna on meadows located of soil formed of alder peats was marked for a lower mean abundance and a lesser differentiation of large taxa (order) composition, a closer similarity of dynamics of seasonal changes, stranger dependence on precipitation. In the series of habitats of a progressing degree of soil transformation there was observed a tendency of changes in the system of trophic groups, i.e., a decrease in contribution of large groups of predators (Aranea, Staphylinidae, Formicidae) and an increase in contribution of phytophages (Elateridae). The two-group division of the examined habitats was also noted while analyzing physical properties of soil and its microbial activity. In the gradient of the examined habitats there were recorded correlations between the changes in physical properties of soil (x), microbiological activity (y) and density of soil invertebrate fauna (z), expressed by Kendall partial rank correlation coefficient.

4

XII Kongres Miedzynarodowej Unii do Badan Owadow Spolecznych /IUSSI/ /Paryz, Sorbona, 21-27 VIII 1994 r./

88%

Petal J.

Wiadomości Ekologiczne

|

1995

|

tom 41

|

nr 1

65-66

5

A preliminary analysis of relations between physical, chemical and biotic factors in hydrogenic soils

63%

Petal J., Churski T.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1990

|

tom 388

Some physical properties (such as the degree of mucking, muck depth, volumetric density, total porosity, moisture content), together with some chemical properties, (such as the value of absorbance λ 280, λ664, the content of exchangeable basic cations bound to the sorption complex, the content of hydrogen and organic carbon), and the biotic properties, (such as the number of microflora: amonificators, Actinomycetes and microorganisms using mineral nitrogen, and the biomass of invertebrates: saprophages, phytophages, predators) have been studied on meadow-sites situated on peat soils of differentiated peat origin and the period of dehydration. It has been observed that the studied properties differentiated the studied environments in a statistically significant way, and that the changes are correlated with the gradient of mucking.

6

Drained fens: comparison of nitrogen mineralization rate and biotic structures in two periods of secondary succession

63%

Kajak A., Petal J.

Polish Journal of Ecology

|

2001

|

tom 49

|

nr 3

7

Ant communities in relation to changes in some properties of hydrogenic soils differentially transformed

45%

Petal J., Chmielewski K., Czepinska-Kaminska D., Konecka-Betley K., Kulinska D.

Ekologia Polska

|

1992

|

tom 40

|

nr 4

553-576

8

Zespoły bezkręgowców glebowych - ich funkcje i przemiany w glebach torfowych

45%

Ciesielska Z., Kaczmarek M., Makulec G., Petal J., Wasilewska L.

Wiadomości Instytutu Melioracji i Użytków Zielonych

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1988-1991

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tom 16

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nr 3

9

Biological and chemical properties of fen soils affected by anthills of Myrmica spp.

39%

Petal J., Chmielewski K., Kusinska A., Kaczorowska R., Stachurski A., Zimka J.

Polish Journal of Ecology

|

2003

|

tom 51

|

nr 1

The paper focuses on the role of ants as soil engineers in three drained fens. Physical, chemical and biotic soil conditions and effects of ants on soil conditions were compared between fens differing in peat origin. Multivariate statistical methods were applied (PCA, RDA). Relationship between soil moisture, indices of soil biological activity, and the amount of nutrients released were better expressed in the anthill soil than in the adjacent soil. A lower bulk density of the anthill soil, thus, a higher soil porosity, enhanced the leaching of water- extractable, mobile metallic cations and nitric ions. The composition of humus fraction was strongly dependent on soil chemical properties. In both the anthill soil and the adjacent soil, the content of humic acids was postively related with bulk density, whereas the content of humis was related with moisture. In adjacent soil, cation exchange capacity (CEC) was positively related with the content of humic acids and with bulk density. This relationship was not so clear in the anthill soil. The direction of changes in these relationship in the anthiil soil was influenced by ant societes. The number of individuals in society determined the nest structure and the associated increase in soil humidity and porosity. The consumption by ants, thus the input of matter rich in nitrogen, influenced the functional structure of microorganisms and their activity.

10

Ekologiczna analiza przemian zachodzących na torfowiskach pod wpływem gospodarki

27%

Kajak A., Andrzejewska L., Ciesielska Z., Chmielewski K., Kaczmarek M., Makulec G., Petal J., Ryszkowska J., Stopnicki J., Szanser M., Wasilewska L.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1991

|

tom 372

Ograniczanie wyników

Reaction of ant communities to degradation of forest habitats in the Karkonosze Mountains

Miedzynarodowe sympozjum na temat "Naturalne i uzytkowane rolniczo ekosystemy torfowiskowe i ich zagospodarowanie" [Saint Malo, Francja, 25-29 VIII 1997 r.]

Communities of soil invertebrates in meadows on transformed hydrogenous soil

XII Kongres Miedzynarodowej Unii do Badan Owadow Spolecznych /IUSSI/ /Paryz, Sorbona, 21-27 VIII 1994 r./

A preliminary analysis of relations between physical, chemical and biotic factors in hydrogenic soils

Drained fens: comparison of nitrogen mineralization rate and biotic structures in two periods of secondary succession

Ant communities in relation to changes in some properties of hydrogenic soils differentially transformed

Zespoły bezkręgowców glebowych - ich funkcje i przemiany w glebach torfowych

Biological and chemical properties of fen soils affected by anthills of Myrmica spp.

Ekologiczna analiza przemian zachodzących na torfowiskach pod wpływem gospodarki