engleski

Nematode community structure in poplar forest in eastern Croatia

Nematode community structure was analyzed in poplar forest in Eastern Croatia. Nematodes were analyzed in order to determine dominant feeding group. Sampling was done in September 1997, Jun 1998 and September 1998, in four replicates, on the depth of 20 cm, by using sonda with internal diameter O2 cm. After extraction and analyzing of nematodes greatest absolute abundance was determined in September 1998 (1056 nematodes/100 g of soil), and greatest number of genera in June 1998 (30). Trophic structure was dominant by plant feeders in Jun and September 1998 (44% and 47%, respectively), and by bacterial feeders (51%) in September 1997. The group of predaceous nematodes was less dominant in all three time of sampling (3%, 4% and 5%). The most common predators in all samples was Mylonchulus sp. Dominant plant parasitic nematodes was Paratylenchus sp. and Tylenchidae.Group of omnivores and fungal feeding nematodes also occurred - omnivores ranging from 4-12% in samples and fungal feeders from 4-9%.

nematode community; poplar forest; trophic groups

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