The role of Lumbricus rubellus Hoffm. in determining biotic and abiotic properties of peat soils

• Autorzy: Makulec G.
• Języki publikacji: EN

Abstrakty

EN

The field study was conducted on fifteen peat meadows located in the Biebrza river valley, north-eastern Poland, to estimate the range of changes in Lumbricidae communities with time after drainage. In a field experiment, the effects of L. rubellus were examined on the composition and abundance of microflora, Nematoda, Collembola, and Enchytraeidae, and on resources of exchangeable nutrients in drained peat soils. The occurrence of 2-6 earthworm species was noted in soils of drained peats. L. rubellus appeared already 3-5 years after drainage and rapidly reached high densities and biomass. It showed preference for moderately or heavily moorshed soils, with high contents of total nitrogen and phosphorus, low C/N, moderate porosity, and moderate moisture. Casts of this species contained more fungi and cellulolytic microorganisms, while less bacteria and actinomycetes, as compared with their contents in the soil. Also urease activity, content of fulvic acids and concentrations of exchangeable phosphorus, magnesium, and potassium were higher in casts. In a 4-month field experiment, different densities of L. rubellus were used: 2,4, and 6 individuals in 1.5 L isolators inserted to soil. The control variant was without earthworms. It was found that high L. rubellus densities in peat moorsh enhanced bacteria, ammonifying microorganisms, microorganisms utilising mineral nitrogen, and seasonally also actinomycetes and cellulolytic microbes. Also total microbial biomass, dehydrogenase activity, and the rate of cellulose decomposition were higher. The abundance of soil fungi noticeably decreased. Moreover, L. rubellus significantly influenced nemathode composition and abundance. Within a short time, their total numbers declined, especially numbers of bacterial-feeding nematodes. Also numbers an proportions of fungivorous nematodes slightly declined. Plat-feeding nematodes were least affected by this species, and in some periods their numbers were higher in the presence of earthworms than in the control. In the field experiment, no noticeable effect of earthworms was found on total enchytraeid numbers. In the period of autumn peak of Collembola, high numbers of L. rubellus reduced their densities. By modifying the composition and abundance of microflora, nemathodes and mesofauna high L. rubellus densities (above 200 individuals m^-2) can increase the rate of organic matter mineralization, intensify competition for nutrients, and indirectly they contribute to the biological decomposition of moorsh in soils of drained peat meadows.

Słowa kluczowe

EN

casts; drainage; earthworms; Enchytraeids; Lumbricus rubellus; microflora; nematodes; peat meadow; springtails

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2002
• Tom: Vol. 50, nr 3
• Strony: 301--339
• Opis fizyczny: Tab., wykr.,Bibliogr. 137 poz.,

Twórcy

autor

Makulec G.

• Institute of Ecology PAS, Dziekanów Leśny near Warsaw, 05-092 Łomianki, Poland,

Bibliografia

• [1]. Anderson J. P. E., Domsch K. H. 1978 - A physiological method for quantitative measurement of microbial biomass in soils - Soil Biol. Biochem. 10: 215-221.
• [2]. Anderson J. M., Ineson P., Huish S. A. 1983 - Nitrogen and cation mobilization by soil fauna feeding on leaf litter and soil organic matter from deciduous woodlands - Soil Biol. Biochem. 15: 463-467.
• [3]. Arzamasov I. T., Dolbik M. S., Chot'ko E. I., Sevcova T. M. 1980 - Vlijanie melioracji na żivotnyj mir Belorusskogo Polesja - Nauka i Technika, Mińsk, 174 pp. (in Russian).
• [4]. Atlavinyte O. 1975 - Ecology of earthworms and their effect on the fertility of soils in the Lithuanian SSR - Mokslas Publishers, Vilnus, 201 pp. (in Russian).
• [5]. Atlavinyte O. 1990 - The effect of earth worms on agrocenoses - Mokslas Publishers, Vilnus, 178 pp. (in Russian).
• [6]. Basker A., Macgregor A. N., Kirkman J. H. 1993 - Exchangeable potasium and other cations in non-ingested soil and casts of two species of pasture earthworms - Soil Biol. Biochem. 25: 1673-1677.
• [7]. Basker A., Kirkman J. H., Macgregor A. N. 1994 - Changes in potassium availability and other soil properties due to soil ingestion by earthworms - Biol. Fertil. Soils, 17: 154-158.
• [8]. Blair J. M., Parmelee R. W., Allen M. F., McCartney D. A., Stinner B. R. 1997 - Changes in soil N pools in response to earthworm po-pulation manipulation in agroecosystems with different N sources - Soil Biol. Biochem. 29: 361-367.
• [9]. Bonkowski M., Griffiths B. S., Ritz K. 2000 - Food preferences of earthworms for soil fungi - Pedobiologia, 44: 666-676.
• [10]. Bouché M. B. 1972 - Lombriciens de France. Ecologie et Systematique - Paris, INRA Publ.
• [11]. Bouché M. B. 1975 - Action de la faune sur les etats de la matiere organique dans les ecosystemes (In: Biodegradation et Humification, Eds. K. Gilbertus, O. Reisinger, A. Mourey, J. A. Cancela da Fonseca) - Pierron, Sarruguemines.
• [12]. Bouwman L. A., Zwart K. B. 1994 - Thee ecology of bacterivorous protozoans and nematodes in arabie soil - Agriculture, Ecosystems & Environment 51: 145-160.
• [13]. Braak C. J. F. ter 1996 - Unimodal models to relate species to environment. DLO - Agricultural Mathematics Group, Wageningen, 266 pp.
• [14]. Briones M. J. I., Mascato R., Mato S. 1992 -Relationships of earthworms with environmental factors studied by means of detrended canonical correspondence analysis - Acta Oecologica, 13 (5): 617-626.
• [15]. Briones M. J. I., Mascato R., Mato S. 1995 - Autecological study of some earthworm species (Oligochaeta) by means of ecological profiles - Pedobiologia, 39 (2): 97-106.
• [16]. Brown G. G. 1995 - How do earthworms affect microfloral and faunal community diversity? - Plant and Soil, 170: 209-231.
• [17]. Brown G. G., Hendrix P. F., Beare M. H. 1995 - Influence of earthworms (Lumbricus rubellus) on soghum litter processing and nitrogen mineralization in two Ultisols - Acta Zool. Fennica, 196: 55-59.
• [18]. Brown G. G., Hendrix P. F., Beare M. H. 1998 - Earthworms (Lumbricus rubellus) and the fate of 15N in surface-applied sorghum residues - Soil Biol. Biochem. 30 (13): 1701-1705.
• [19]. Casida L. E., Klein D. A., Santoro T. 1964 - Soil dehydrogenase activity - Soil Sci. 98: 371-376.
• [20]. Chmielewski K., Makulec G. 1993 - Microflora and enzymatic activity of earthworm (Lumbricidae) casts in hydrogenous soil - Z. Probl. Postępów Nauk Rol. 406: 135-138.
• [21]. Curry J. P., Boyle K. E. 1987 - Growth rates, establishment, and effects on herbage yield of introduced earthworms in grassland on reclaimed cutover peat - Biol. Fertil. Soils 3: 95-98.
• [22]. Czerwiński Z., Jakubczyk H.,Nowak E. 1974 - The effect of earthworms on the pasture soil - Ekol. Pol. 22 (3/4): 635-650.
• [23]. Daniel O., Anderson J. M. 1992 - Microbial biomass and activity in contrasting soil materials after passage through the gut of the earthworm Lumbricus rubellus Hoffmeister - Soil Biol. Biochem. 24: 465-470
• [24]. Darwin C. R. 1881 - The formation of vegetable mould through the action of worms, with observations on their habits - Murray, London.
• [25]. Dash M. C., Senapati B. K., Mishra C. C. 1980 - Nematode feeding by tropical earthworms - Oikos, 34: 322-325.
• [26]. Didden W. A. M. 2001 - Earthworm communities in grasslands and horticultural soils - Biol. Fertil. Soils, 33: 111-117.
• [27]. Doube B. M., Ryder M. H., Davoren C. W., Meyer T. 1995 - Earthworms: A down-under delivery service for biocontrol agents of root disease - Acta Zool. Ferm. 196: 219-223.
• [28]. Dreidax L. 1931 - Investigations on the importance of earthworms for plant growth - Arch. Pflanzenbau 7: 413-467.
• [29]. Edwards C. A. 1998 - Earthworm Ecology - St. Lucie Press, 389 pp.
• [30]. Edwards C. A., Bohlen P. J. 1996 - Biology and ecology of earthworms - Chapman and Hall, 426 pp.
• [31]. Edwards C. A., FletcherK. E. 1988 - Interactions between earthworms and microrganisms in organic matter breakdown - Agric. Ecosyst. Environ. 24: 235-247.
• [32]. Evans A. C., Guild W. J. Mc. L. 1948 - Studies on the realationships between earthworms and soil fertility. IV. On the life cycles of some British Lumbricidae - Ann. Appl. Biol. 35: 471-484.
• [33]. Flegel M., Schrader S., Z hang H. 1998 -Infuence of food quality on the physical and chemical properties of detritovorous earthworm casts - Appl. Soil Ecol. 9 (1-3): 263-269.
• [34]. Francis G. S., Fraser P. M. 1998 - The effects of three earthworm species on soil macroporosity and hydraulic conductivity - Appl. Soil Ecol. 10 (1-2): 11-19.
• [35]. Furmańczuk G. 1979 - Badania ekologiczne dżdżownic (Oligochaeta: Lumbricidae) torfowiska niskiego w południowym basenie Biebrzy [Ecolo-gical studies on earthworms (Oligochaeta: Lumbricidae) of a peat fen bog in southem part of the Biebrza river basin] - Praca magisterska. UW (in Polish).
• [36]. Golley F. B. 1960 - An index to the rate of cellulose decomposition in the soil - Ecology 41 (3): 551-552.
• [37]. Graff O. 1971 - Stikstoff, Phosphor und Kalium in der Regenwurmlosung auf der Wiesenversuchsflache des Sollingprojektes - Ann. Zool. Ecol. Anim. 4: 503-512.
• [38]. Haimi J., Huhta V. 1990 - Effect of earthworms on decomposition processes in Raw humus forest soil: A microcosmos study - Biol. Fertil. Soils, 10: 178-183.
• [39]. Haimi J., Boucelham M. 1991 - Influence of litter feeding earthworm, Lumbricus rubellus, on soil processes in simulated coniferous forest floor -Pedobiologia, 35: 247-256.
• [40]. Haimi J., Huhta V., Boucelham M. 1992 - Growth increase of birch seedling under the influence of earthworms - a laboratory study - Soil Biol. Biochem. 24: 1525-1533.
• [41]. Hartenstein R. 1982 - Soil macroinvertebrates, aldehyde oxidase, catalase, cellulase and peroxidase - Soil Biol. Biochem. 14: 387-391.
• [42]. Hartenstein R. 1984 - Rate of production and loss of earthworm biomass in relation to species and size - Soil Biol. Biochem. 16 (6): 643-649.
• [43]. Hendrix P. F, Peterson A. C., Beare M. H., Co¬lem an D. C. 1998 - Long-term effects of earthworms on microbial biomass nitrogen in coarse and fine textured soils - Appl. Soil Ecol. 9: 375-380.
• [44]. Hoffmann G., Te icher K. 1961 - Ein Kolorimetrisches Verfahren zur Bestimmung der Ureaseaktivitat in Boden - Z. Pfl. Enahr Dung, 95: 55-63.
• [45]. Hyvönen R., Anderson S., M., Persson T. 1994 - Effects of lumbricids and enchytraeids on nematodes in limed and unlimed coniferous mor humus -Biol. Fertil. Soils, 17: 201-205.
• [46]. Ilieva-Makulec K., Makulec G. 2002 - The effect of the earthworm Lumbricus rubellus Hoffm. on the nematode community in a peat meadow soil - Eur. J. Soil Biol. 38: 59-62.
• [47]. Ivask M., Truu J. 1998 - The relationship of Estonia earthworms to local habitat and soil factors - Pedobiologia, 42: 378-384.
• [48]. Jones C. G., Lawton J. H., Shachak M. 1994 - Ogranisms as ecosystem engineers - Oikos, 69: 373-386.
• [49]. Kaczmarek M. 1991 - Characteristic of the studied habitats in the Biebrza and Narew old river valleys - Pol. ecol. Stud. 17 (1-2): 7-19.
• [50]. Kajak A. 1985 - Immediate and remote ecological consequences of the peat drainage - Pol. ecol. Stud. 11 (1): 123-150.
• [51]. Kajak A., Andrzejewska L. Chmielewski K., Ciesielska Z., Kaczmarek M., Makulec G., Pętal J., Wasilewska L. 1985 - Long-term changes in grassland communities of heterotrophic organisms on drained fens - Pol. ecol. Stud. 11: 21-52.
• [52]. Kajak A., Okruszko H. 1990 - Grasslands on drained peats in Poland (In: Managed Grasslands, Ed. A. Breymeyer) - Elsevier Science Publishers, B. V., Amsterdam, pp. 213-253.
• [53]. Kasprzak K. 1986 - Skąposzczety glebowe, III Rodzina dżdżownice (Lumbricidae). Klucze do oznaczania bezkręgowców Polski Tom 6 [Soil oligo-chaetes III (Lumbricidae). Keys for identification of invertebrates of Poland,Vol. 6] - PWN, Warszawa, 187 pp. (in Polish).
• [54]. Kavian M. F., Ghatnekar S. D., Kulkarni P. R. 1999 - Studies on cellulase of Lumbricus rubellus - Bioresource Technology, 69: 161-165.
• [55]. Kempson D., Lloyd M., Ghelardi R. 1963 - A new extractor for woodland litter - Pedobiologia, 3: 1-21.
• [56]. Kipenvarlic A. F. 1953 - Ob izmenenii pocvennoj fauny bolot pod vlijaniem melioracji - Zool. Ż. 32 (3): 348-357.
• [57]. Konecka-Betley K., Czępińska-Kamińska D. 1993 - Differentration in the content of organic matter in hydrogenic soils of various degrees of transformation - Zesz Probl. Nauk Rol. 406: 95-104.
• [58]. Kononowa M. 1968 - Materia organiczna gleby [Soil organic matter] - PWRiL, Warszawa, 391 pp.
• [59]. Kozlovskaja L. S. 1976 - Rol' bespozvonocnych v transformacji organiceskogo vescestva bolotnych pocv - Nauka, Leningrad (in Russian).
• [60]. Kozlovskaja L. S. 1980 - Pocvennaja fauna i biologiceskaja aktivnost osusennych i rekultivirujemych torfjanikov - Nauka, Leningrad 171 pp. (in Russian).
• [61]. Krištůfek V., Ravasz K., Pizl V. 1992 - Changes in densities of bacteria and microfungi during gut transit in Lumbricus rubellus and Aporrectodea caliginosa (Oligochaeta; Lumbricidae) - Soil Biol. Biochem. 24 (12): 1499-1500.
• [62]. Krištůfek V., Ravasz K., Pizl V. 1993 - Actino-mycete communities in earthworm guts and surrounding soil - Pedobiologia, 37: 379-384.
• [63]. Krištůfek V., Tajovsk5r, Pizl V. 1994 - Ultrastru-ctural analysis of the intestinal content of earthworm Lumbricus rubellus Hoff. (Annelida, Lum-bricidae) - Acta Microbiologica et Immunologica Hungarica 41: 283-290.
• [64]. Kulińska D. 1961 - Wpływ dżdżownic na mikroflorę gleby [Effects of earthworms on soil microflora] - Acta Microbiologica Polonica, 10: 339-346 (in Polish).
• [65]. Kuster E., Wiliams S. T. ]964 -Selection of media for isolation of Streptomyces - Nature 202: 928-929.
• [66]. Lagerlöf J., Lofs-Holmin A. 1987 - Relationships between earthworms and soil mesofauna during decomposition of crop residues (In: Soil Fauna and Soil Fertility, Ed. B. R. Striganova) - Nauka, Moskwa, pp. 377-381.
• [67]. Lakanen E. 1962 - On the analysis of soluble trace elements - Ann. Agric. fenn. 2: 109-117.
• [68]. Lawton J. H. 1994 - What do species do in ecosystems? - Oikos, 71: 367-374.
• [69]. Lavelle P. 1997 - Faunal activities and soil processes: Adaptative strategies that determine ecosystem function - Advances in Ecological Soil Research, 27: 93-132.
• [70]. Le Bay on R. C., B in et F. 2001 - Earthworm surface casts affect soil erosion by run off water and phosphorus transfer in a temperate maize crop - Pedobiologia, 45: 430-442.
• [71]. Lee K. E. 1985 - Earthworms, their ecology and relationships with soils and land use - Academic Press, 411 pp.
• [72]. Loquet M., Bhatnagar T., Bouché M. B., Rouelle J. 1977 - Essai d'estimation de l'influence ecologique des lombrices sur les microorganismes - Pedobiologia, 17: 400-417.
• [73]. Lunt H. A., Jacobson G. M. 1944 - The chemical composition of earthworm casts - Soil Sci. 58: 367-375.
• [74]. Makulec G. 1991 - The effect of long term drainage of peat soil on earthworm communities (Oligochaeta: Lumbricidae) - Pol. ecol. Stud. 17 (3-4): 203-219.
• [75]. Makulec G. 1993 - Abundance and biomass of eart-hworms (Lumbricidae) in hydrogenous soils under various degree of mucking - Z. Probl. Postępów Nauk Rol. 406: 119-127.
• [76]. Makulec G. 1996 - Interactions between earthworms and enchytraeids - Zesz. Nauk. Akademii Rol. im. H. Kołłątaja w Krakowie, 47: 147-154 (in Polish).
• [77]. Makulec G., Chmielewski K. 1994 - Earthworms communities and their role in hydrogenic soils (In: Conservation and management of fens, Proc. International Symposium, 6-10 June, Warsaw-Biebrza, Poland) - Institute of Land Reclamation and Grassland Farming - Falenty, pp. 417-428.
• [78]. Makulec G., Chmielewski K. 2002 -Microfloral abundance and enzymatic activity of Lumbricus rubellus Hoffm. (Oligochaeta: Lumbricidae) casts in peat meadow soils - Pol. J. Ecol. 50: 381-387.
• [79]. Makulec G., Ilieva-Makulec K., Olejniczak I. 2001 - Influence of Lumbricus rubellus Hoffm. (Lumbricidae) on micro- and mesofauna in a peat meadow soil - Zesz. Nauk. Akademii Rol. im. H. Kołłątaja w Krakowie, 75: 107-116. (in Polish).
• [80]. Makulec G., Kusińska A. 1995 - The role of earthworms in humus formation on grassland - Acta Zool. Fennica, 196: 80-82.
• [81]. Makulec G., Kusińska A. 1997 - The role of earthworms (Lumbricidae) in transformations of organic matter and in the nutrient cycling in the soils of ley meadows and permanent meadows - Ekol. pol. 45: 825-837.
• [82]. Makulec G., Pilipiuk I. 2000 - Influence of plant diversity and earthworm casts on the abundance and species composition of the enchytraeids (Oligochaeta: Enchytraeidae) in a lysimetric experiment - Pol. J. Ecol. 48: 185-193.
• [83]. Marinissen J. Y. C., van den Bosch F. 1992 - Colonization of new habitats by earthworms - Oecologica 91 (3): 371-376.
• [84]. Marinissen J. Y. C, Bok J. 1988 - Earthworm-a-mended soil structure: its influence on Collembola populatios in grassland - Pedobiologia, 32: 243-252.
• [85]. Martin J. P. 1950 - Use of acid rose bengal and Streptomycin in the plate method for estimating soil fungi - Soil Sci. 69: 215-232.
• [86]. Martin N. A. 1982 - The interaction between organic matter in soil and the burrowing activity of three species of earthworms (Oligochaeta: Lum-bricidae) - Pedobiologia, 24: 185-190.
• [87]. McLean M. A., Parkinson D. 1998 - Impacts of the epigeic earthworm Dendrobaena octaedra on oribatid mite community diversity and microart-hropod abundances in pine forest floor: mesocosmos study - Appl. Soil Ecol. 7: 125-136.
• [88]. Myśkow W. 1968 - Influence of microflora on humus formation - Wiad. Bot. 12: 229-245 (in Polish).
• [89]. Needam A. E. 1957 - Components of nitrogenous excreta in the earthworms L. terrestris and E. foetida - J. Exp. Biol. 34 (4): 425-446.
• [90]. Neuhauser E. F., Hartenstein R. 1978 - Reactivity of macroinvertebrate peroxidases with lignins and lignin model compounds - Soil Biol. Biochem. 10: 341-342.
• [91]. O'C onnor F. B. 1962 - The extraction of Enchytraeidae from soil (In: Progress in soil zoology, Ed. P. W. Murphy) - London, pp. 279-285.
• [92]. Okruszko H. 1990 - Wetlands of the Biebrza Valley. Their value and future management - Pol. Acad. Sci., Warszawa, 107 pp.
• [93]. Okruszko H. 1993 - Transformation of fen peat soil under the impact of draining - Zesz. Probl. Post. Nauk Rol. 406: 3-75.
• [94]. Okruszko H., Kozakiewicz A. 1973 - Humifikacja i mineralizacja jako elementy skladowe procesu murszenia gleb torfowych [Humification and mineralization as mucking process elements in peat soils] - Zesz. Probl. Post. Nauk Rol. 146: 63-76 (in Polish).
• [95]. Parle J. N. 1963a - Microorganisms in the intestine of earthworms - J. General Microbiol. 31: 1-11.
• [96]. Parle J. N. 1963b - A microbiological study of earthworms casts - J. General Microbiol. 31: 13-22.
• [97]. Parmelee R. W., Crossley D., A., Jr 1988 - Earthworms production and role in the nitrogen cycle of a notillage agroecosystem on the Georgia piedmont - Pedobiologia, 32: 351-361.
• [98]. Paul E. A., Clark F. E. 1996 - Soil Microbiology and Biochemistry - Academic Press, San Diego, California, 340 pp.
• [99]. Pedersen J. C., Hendriksen N. B. 1993 -Effect of passage through the intestinal tract of detritivore earthworms (Lumbricus spp.) on the number of selected Gram-negative and total bacteria - Biol. Fertil. Soils, 16: 227-232.
• [100]. Petersen H., Luxton M. 1982 - A comparative analysis of soil fauna populations and their role in decomposition processes - Oikos, 39: 288-388.
• [101]. Pętal J., C hursk i T. 1991 - Basic physical, chemical and biotic processes in meadow ecosystems on hydrogenous soils - Pol. ecol. Stud. 17: 347-358.
• [102]. Piearce T. G. 1972 - The calcium relation of selected Lumbricidae -J. Anim. Ecol. 41: 167-188
• [103]. Piearce T. G. 1978 - Gut contents of some lumbricid earthworms - Pedobiologia 18: 153-157.
• [104]. Piearce T. G., Phillips M. J. 1980 - The fate of ciliates in the earthworm gut: An in vitro study - Microbial.col. 5: 313-320.
• [105]. Plisko J. D. 1973 - Lumbricidae. Dżdżownice. Fauna Polski 1 [Earthworms. Fauna of Poland 1) - PWN, Warszawa, 156 pp. (in Polish).
• [106]. Raw F. 1959 - Estimating earthworm populations using formalin -Nature, 184: 1661-1662.
• [107]. Rodina A. 1968 - Mikrobiologiczne metody badania wód [Microbiological methods for the study of waters] - PWRiL, Warszawa (in Polish).
• [108]. Roessner J. 1986 - Untersuchungen zur Reduktion von Nematoden im Bodem durch Regenwueremer - Med. Fac. Landbouww. Rijksuniv. Gent, 51/3b: 1311-1318.
• [109]. Roguski W., Bieńkiewicz P. 1967 - Zanikanie gleb organicznych w wyniku melioracji [Loss of organic soil after drainage] - Zesz. Probl. Post. Nauk Rol. 72: 61-86 (in Polish).
• [110]. Roots B. I. 1956 - The water relations of earthworms. II. Resistance to desiccation and immersion and behaviour when submerged and when al-lowed choise of environment - J. Exp. Biol. 33: 29-44.
• [111]. Rożen A., Fijał K., Gruca B. 1995 - Feeding ecology of some earthworms (Lumbricidae) - Acta Zool. Fennica, 196: 90-91.
• [112]. Ruz-Jerez B. E., Ball R. P., Tillman R. W. 1992 - Laboratory assessement of nutrient release from a pasture soil receiving grass or clover residues, in the presence or absence of Lumbricus rubellus or Eisenia fetida - Soil Biol. Biochem. 24 (12): 1529-1534.
• [113]. Satchell J. E. 1955 - Some aspects of earthworm ecology (In: Soil Zoology, Ed. D. K. McE. Kevan) - Butterworth, London, pp. 180-202.
• [114]. Satchell J. E. 1967 - Lumbricidae (In: Soil Biology, Eds. A. Burges, F. Raw) - Academic Press, London, pp. 259-322.
• [115]. Satchell J. E. 1980 - R worms and K worms: A basis for classifing lumbricid earthworm strategies (In: Soil Biology as Related to Land Use Practi-ces, Ed. D. L. Dindal) - Proc. 7th Inter. Coll. Soil Zool. EPA, Washington DC, pp. 848-854.
• [116]. Satchell J. E. 1983 - Earthworm microbiology (In: Earthworm Ecology, Ed. J. E. Satchell) - Chap-man and Hall, London
• [117]. Scheu S. 1987 - Microbiol activity and nutrient dynamics in earthworm casts - Biol. Fertil. Soils 5: 230-234.
• [118]. Scheu S., Parkinson D. 1994 - Effects of earthworms on nutrient dynamics, carbon turnover and microorganisms in soils from cool temperate forests of the Canadian Rocky Mountains - laboratory studies - Applied Soil Ecology, 1: 113-125.
• [119]. Shaw C., Pawluk S. 1986 - Faecal microbiology of Octolasion tyrtaeum, Aporrectodea turgida and Lumbricus terrestris and its relation to carbon budgets of three artificial soils - Pedobiologia, 29: 377-389.
• [120]. Shipitalo M. J., Protz R. 1988 - Factors influencing the dispersibility of clay in worm casts - Soil Sci. Soc. Am. J. 52: 764-769.
• [121]. Shipitalo M. J., Protz R., Tomlin A. D. 1988 - Effect of diet on the feeding and casting activity of Lumbricus terrestris and L. rubellus in laboratory culture - Soil Biol. Biochem. 20 (2): 233-237.
• [122]. Skujins J. J. 1967 - Enzymes in soil (In: Soil biochemistry, Eds. A. D. McLaren, G. H. Peterson) - M. Dekker, Inc, N.York, pp. 371-414.
• [123]. Sparling G. P. 1995 -The substrate-induced respiration method (In: Methods in applied soil microbiology and biochemistry, Eds. K. Alef, P. Nannipieri) - Academic Press Harcourt, Barce & Company Publishers, pp. 397-404.
• [124]. Springett J. A., Syers J. K. 1979 - The effect of earthworm casts on ryegrass seedlings (In: Proceedings of the 2m1 Australasian conference on grass-land ecology, Eds. T. K. Crosby, Pottinger) - Goverenment Printer, Wellington, pp. 44-47.
• [125]. Stückli A. 1928 - Studien fiber den Einfluss der Regenwtirmer auf die Beschaffenheit des Bodens - Landw. Jb. Schweiz. 42: 1.
• [126]. Subler S., Kirsch A. S. 1998 - Spring dynamics of soil carbon, nitrogen, and microbial activity in earthworm middens in a notill cornfield - Biol. Fer-til. Soils 26: 243-249.
• [127]. Subler S., Barański C. M., Edwards C. A. 1997 -Earthworm additions increased short-term nitrogen availability and leaching in two grain-crop agroecosystems - Soil Biol. Biochem. 29: 413-421.
• [128]. Syers J. K., Springett J. A. 1983 -Earthworm ecology in grassland soils (In: Earthworm Ecology, Ed. J. E. Satchell) - Chapman and Hall, London, pp. 67-83
• [129]. Tiunov A. V., Scheu S. 2000 - Microbial biomass, biovolume and respiration in Lumbricus terrestris cast material of different age - Soil Biol. Bio-chem. 32: 265-275.
• [130]. Tracey M. V. 1951 - Cellulase and chitinase of earthworms - Nature (London) 167: 776.
• [131]. Trofymov J. A., Coleman D. C. 1982 - The role of bacterivorous and fungivorous nematodes in cellu-lose and chitin decomposition in the conentex of a root/rhizosphere/soil conceptual model (In: Nematodes in Soil Ecosystems, Ed. D. W. Freckman) - University of Texas Press, Austin, pp. 117-138.
• [132]. Urbasek F., Pižl V. 1991 - Activity of digestive enzymes in the gut of five eartworm species (Oligochaeta: Lumbricidae) - Revue d'Ecologie et de Biologie du Sol, 28: 461-468.
• [133]. Whalen J. K., Parmelee R. W., Subler S. 2000 - Quantification of nitrogen excretion rates for three lumbricid earthworms using 15N - Biol. Fertil So-ils, 32: 347-352.
• [134]. Wolter C., Scheu S. 1999 - Changes in bacterial numbers and hyphal lengths during the gut passage through Lumbricus terrestris (Lumbricidae, Oligochaeta) - Pedobiologia, 43: 891-900.
• [135]. Yeates G. W. 1981 - Soil nematode populations depressed in the presence of earthworms - Pedobiologia, 22: 191-195.
• [136]. Zhang Q. L., Hendrix P. F. 1995 - Earthworm (Lumbricus rubellus and Aporrectodea caliginosa) ef-fects on carbon flux in soil - Soil Sci. Soc. Am. J. 59: 816-823.
• [137]. Zraževski j A. I. 1957 - Doždevyje czervi kak faktor plodorodija lesnych počv - Izd. AN UCCP, Kiev, 271 pp. (in Russian).