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Soil Biology & Biochemistry 39 (2007) 700703 Short communication

Summary: Soil Biology & Biochemistry 39 (2007) 700­703
Short communication
Motility and migration rate of protozoa in soil columns
S.M. AdlĂ
Department of Biology, Dalhousie University, 1355 Oxford St., Halifax, Nova Scotia, B3H 4J1, Canada
Received 6 July 2006; received in revised form 24 August 2006; accepted 2 September 2006
Available online 13 October 2006
Velocity and distances travelled each day by protists in the soil was previously unknown. Soil columns were designed to monitor the
distribution of cells along the length of each column as a way to measure migration potential. Motility was affected by pore space, water
flow and gravity. The results show that the soil microhabitats that can be explored and exploited by flagellate, amoeboid or ciliated
species is in the order of centimetres per day in sandy and sandy loam-textured soil matrices. This value is useful to understand the soil
volume that can be explored for food and protist dispersal potential without lateral water flow.
r 2006 Elsevier Ltd. All rights reserved.
Keywords: Amoebae; Ciliates; Colonisation rate; Flagellates; Immigration; Soil biota
The velocity of locomotion of protists in the soil is
unknown. I constructed soil columns to determine whether
it was possible to address the motility of soil protists based
on the ideas derived from chromatography (Jo¨ nsson,
1987). The soil matrix mimics a porous chromatography


Source: Adl, Sina - Department of Biology, Dalhousie University


Collections: Environmental Sciences and Ecology