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J Nematol. 1979 Jul;11(3):213-29.

Soil nematodes in terrestrial ecosystems.

Abstract

There has been much work on plant-feeding nematodes, and less on other soil nematodes, their distribution, abundance, intrinsic properties, and interactions with biotic and abiotic factors. Seasonal variation in nematode fauna as a whole is correlated with factors such as moisture, temperature, and plant growth; at each site nematode distribution generally reflects root distribution. There is a positive correlation between average nematode abundance and primary production as controlled by moisture, temperature, nutrients, etc. Soil nematodes, whether bacterial feeders, fungivores, plant feeders, omnivores, or predators, all influence the populations of the organisms they feed on. Although soil trematodes probably contribute less than 1% to soil respiration they may play an important role in nutrient cycling in the soil through their influence on bacterial growth and plant nutrient availability.

KEYWORDS:

ecology, energetics, microcosms, nutrient cycling, primary production

PMID:
19300638
[PubMed]
PMCID:
PMC2617968
Free PMC Article
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