Hydrotaxis


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Related to Hydrotaxis: thermotaxis
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Hydrotaxis

 

the movement of free-moving unicellular and colonial plants and some animals to greater moisture (positive hydrotaxis) or less moisture (negative hydrotaxis). Hydrotaxis, like other taxes, is determined by the needs of the organism. For example, larvae of some insect species (wireworms, for example) move to deeper, more moist layers of the soil when the top layers dry out.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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