Recolonization of Gamma-irradiated Soil of Small Arthropods
C. Coleman and Amyan Macfadyen
In a preliminary study
of the ecology of a litter-soil ecosystem, we followed two lines of inquiry:
1) the recolonization of sterilized, fungalinoculated cores of litter and
soil by certain species of microarthropods (assessed by extraction in a modified
Tullgren apparatus); 2) the total metabolic activity, or respiration, of the
cores, as measured by a field Conway diffusion apparatus.
The litter-soil cores
were sterilized in two devices, a “cold 60Co source, and a fuel pond.
Relative successes of sterilization are reported.
microarthropods recolonized gamma-irradiated, inoculated samples in some cases
in patterns varying with different species of fungi.
Respiration of cores after irradiation was at first lower than, and
subsequently higher than, that of unirradiated control cores for a month
afterward. The methods and results
of this short-term investigation are offered as tools of possible use in more
detailed studies of the litter-soil ecosystem.
SREL Reprint #0100
Coleman, D.C. and A.
MacFadyen. 1966. The
recolonization of gamma irradiated soil by small arthropods: a
preliminary study. Oikos 17:62-70.