The Fauna of the Soil

Abstract
An excellent review of soil animals, with particular reference to those in forests. [long dash]Various types are discussed and their work as reducers of litter to humus, mixers of organic and mineral constituents, and channelers is considered. Certain trees that have little value as lumber are desirable in forests because they favor certain animals that improve the quality of soils. Seasonal and daily movements of soil animals to different levels are due chiefly to variations in light, temp., and moisture. Jacot believes that animals should not be classified primarily on the basis of numbers as dominants, subdominants, etc., but rather according to food habits, life cycles, and interrelations.

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